National Instruments At Users Manual Serial Hardware And Software For Windows User
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Serial Serial Hardware and Software for Windows User Manual PCI, PXI ™, PCMCIA, and AT Serial Hardware Serial Hardware and Software for Windows December 2000 Edition Part Number 322983A-01 Support Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Offices Australia 03 9879 5166, Austria 0662 45 79 90 0, Belgium 02 757 00 20, Brazil 011 284 5011, Canada (Calgary) 403 274 9391, Canada (Ottawa) 613 233 5949, Canada (Québec) 514 694 8521, China (Shanghai) 021 6555 7838, China (ShenZhen) 0755 3904939, Denmark 45 76 26 00, Finland 09 725 725 11, France 01 48 14 24 24, Germany 089 741 31 30, Greece 30 1 42 96 427, Hong Kong 2645 3186, India 91805275406, Israel 03 6120092, Italy 02 413091, Japan 03 5472 2970, Korea 02 596 7456, Mexico 5 280 7625, Netherlands 0348 433466, New Zealand 09 914 0488, Norway 32 27 73 00, Poland 0 22 528 94 06, Portugal 351 1 726 9011, Singapore 2265886, Spain 91 640 0085, Sweden 08 587 895 00, Switzerland 056 200 51 51, Taiwan 02 2528 7227, United Kingdom 01635 523545 For further support information, see the Technical Support Resources appendix. To comment on the documentation, send e-mail to techpubs@ni.com © Copyright 1997, 2000 National Instruments Corporation. All rights reserved. Important Information Warranty The serial hardware is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor. The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free. A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work. National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty. National Instruments believes that the information in this document is accurate. The document has been carefully reviewed for technical accuracy. In the event that technical or typographical errors exist, National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it. EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. This limitation of the liability of National Instruments will apply regardless of the form of action, whether in contract or tort, including negligence. Any action against National Instruments must be brought within one year after the cause of action accrues. National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects, malfunctions, or service failures caused by owner’s failure to follow the National Instruments installation, operation, or maintenance instructions; owner’s modification of the product; owner’s abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control. Copyright Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National Instruments Corporation. Trademarks CVI™, LabVIEW™, National Instruments™, ni.com™, and PXI™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS (1) NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN. (2) IN ANY APPLICATION, INCLUDING THE ABOVE, RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS, INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY, COMPUTER HARDWARE MALFUNCTIONS, COMPUTER OPERATING SYSTEM SOFTWARE FITNESS, FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS, MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES, TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR SOFTWARE), UNANTICIPATED USES OR MISUSES, OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER (ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID DAMAGE, INJURY, OR DEATH, THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES, INCLUDING BUT NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS. BECAUSE EACH END-USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS' TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS, THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION, INCLUDING, WITHOUT LIMITATION, THE APPROPRIATE DESIGN, PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION. Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC places digital electronics into two classes. These classes are known as Class A (for use in industrialcommercial locations only) or Class B (for use in residential or commercial locations). Depending on where it is operated, this product could be subject to restrictions in the FCC rules. (In Canada, the Department of Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.) Digital electronics emit weak signals during normal operation that can affect radio, television, or other wireless products. By examining the product you purchased, you can determine the FCC Class and therefore which of the two FCC/DOC Warnings apply in the following sections. (Some products may not be labeled at all for FCC; if so, the reader should then assume these are Class A devices.) FCC Class A products only display a simple warning statement of one paragraph in length regarding interference and undesired operation. Most of our products are FCC Class A. The FCC rules have restrictions regarding the locations where FCC Class A products can be operated. FCC Class B products display either a FCC ID code, starting with the letters EXN, or the FCC Class B compliance mark that appears as shown here on the right. Consult the FCC web site http://www.fcc.gov for more information. FCC/DOC Warnings This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions in this manual and the CE Mark Declaration of Conformity**, may cause interference to radio and television reception. Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department of Communications (DOC). Changes or modifications not expressly approved by National Instruments could void the user’s authority to operate the equipment under the FCC Rules. Class A Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Canadian Department of Communications This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. Class B Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Canadian Department of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. European Union - Compliance to EEC Directives Readers in the EU/EEC/EEA must refer to the Manufacturer's Declaration of Conformity (DoC) for information** pertaining to the CE Mark compliance scheme. The Manufacturer includes a DoC for most every hardware product except for those bought for OEMs, if also available from an original manufacturer that also markets in the EU, or where compliance is not required as for electrically benign apparatus or cables. * Certain exemptions may apply in the USA, see FCC Rules §15.103 Exempted devices, and §15.105(c). Also available in sections of CFR 47. ** The CE Mark Declaration of Conformity will contain important supplementary information and instructions for the user or installer. Contents About This Manual Conventions ...................................................................................................................xiii Related Documentation..................................................................................................xiv Chapter 1 Introduction How to Use This Manual ...............................................................................................1-1 What You Need to Get Started ......................................................................................1-2 Optional Equipment .......................................................................................................1-3 Serial Hardware Overview.............................................................................................1-3 PCI Kits ...........................................................................................................1-3 PXI Kits ...........................................................................................................1-4 PCMCIA Kits ..................................................................................................1-6 AT Kits ............................................................................................................1-6 NI-Serial Software Overview ........................................................................................1-8 Time-Saving Development Tools ..................................................................................1-8 Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Windows 2000 ...............................................................................................................2-1 Install the Software..........................................................................................2-1 Install the Hardware ........................................................................................2-2 Verify the Installation......................................................................................2-4 Configure Communication Port Settings.........................................................2-5 Windows Me/9x .............................................................................................................2-9 Install the Software..........................................................................................2-9 Install the Hardware ........................................................................................2-10 Verify the Installation......................................................................................2-12 Configure Communication Port Settings.........................................................2-14 Windows NT..................................................................................................................2-18 Install the Software..........................................................................................2-18 Install the Hardware ........................................................................................2-18 Verify the Installation......................................................................................2-20 Configure Communication Port Settings.........................................................2-21 © National Instruments Corporation vii Serial Hardware and Software for Windows Contents Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Windows 2000............................................................................................................... 3-1 Install the Software ......................................................................................... 3-1 Install the Hardware ........................................................................................ 3-2 Verify the Installation ..................................................................................... 3-4 Configure Communication Port Settings ........................................................ 3-5 Windows Me/9x............................................................................................................. 3-9 Install the Software ......................................................................................... 3-9 Install the Hardware ........................................................................................ 3-10 Verify the Installation ..................................................................................... 3-11 Configure Communication Port Settings ........................................................ 3-13 Windows NT ................................................................................................................. 3-17 Install the Software ......................................................................................... 3-17 Install the Hardware ........................................................................................ 3-17 Verify the Installation ..................................................................................... 3-19 Configure Communication Port Settings ........................................................ 3-20 Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Windows 2000............................................................................................................... 4-1 Install the Software ......................................................................................... 4-1 Install the Hardware ........................................................................................ 4-2 Verify the Installation ..................................................................................... 4-3 Configure Communication Port Settings ........................................................ 4-5 Windows Me/9x............................................................................................................. 4-8 Install the Software ......................................................................................... 4-8 Install the Hardware ........................................................................................ 4-9 Verify the Installation ..................................................................................... 4-10 Configure Communication Port Settings ........................................................ 4-13 Windows NT ................................................................................................................. 4-16 Install the NI-Serial Software ......................................................................... 4-16 Install the PCMCIA Serial Hardware ............................................................. 4-17 Verify the Installation ..................................................................................... 4-18 Configure Communication Port Settings ........................................................ 4-19 Serial Hardware and Software for Windows viii ni.com Contents Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Windows 2000 ...............................................................................................................5-1 Install the Software..........................................................................................5-1 Install the Hardware ........................................................................................5-2 Verify the Installation......................................................................................5-4 Configure Communication Port Settings.........................................................5-5 Windows Me/9x .............................................................................................................5-9 Install the Software..........................................................................................5-9 Install the Hardware ........................................................................................5-10 Verify the Installation......................................................................................5-12 Configure Communication Port Settings.........................................................5-14 Windows NT..................................................................................................................5-18 Installing the Microsoft PnP ISA Enabler Driver............................................5-18 Install the NI-Serial Software..........................................................................5-19 Install the Serial Hardware ..............................................................................5-19 Verify the Installation......................................................................................5-21 Configure Communication Port Settings.........................................................5-22 Chapter 6 Using Your Serial Hardware General Programming Requirements.............................................................................6-1 Advanced Transceiver Control for the PCI/PXI/PCMCIA/AT-485 Boards .................6-1 Four-Wire Mode..............................................................................................6-2 Two-Wire Mode: DTR with Echo...................................................................6-2 Two-Wire Mode: DTR Controlled..................................................................6-2 Two-Wire Mode: TXRDY Auto Control ........................................................6-3 Setting the Transceiver Control Mode ............................................................6-3 Setting the Transceiver Mode with DeviceIoControl......................................6-4 Appendix A Connector Descriptions Appendix B Serial Port Information Appendix C Uninstalling the Hardware and Software © National Instruments Corporation ix Serial Hardware and Software for Windows Contents Appendix D Troubleshooting and Common Questions Appendix E Specifications Appendix F Technical Support Resources Glossary Index Figures Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. PCI Serial Board Installation ................................................................ 2-3 Device Manager for PCI Serial Board Ports......................................... 2-4 Port Settings Tab................................................................................... 2-7 Advanced Settings Dialog Box ............................................................. 2-8 PCI Serial Board Installation ................................................................ 2-11 Device Manager Tab for PCI Serial Board Ports.................................. 2-13 Port Settings Tab................................................................................... 2-16 Advanced Port Settings Dialog Box ..................................................... 2-17 Installing the PCI Serial Board ............................................................. 2-19 niports Configuration Utility................................................................. 2-21 General Port Settings Dialog Box......................................................... 2-22 Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6. Figure 3-7. Figure 3-8. Figure 3-9. Figure 3-10. Figure 3-11. Installing the PXI Serial Board ............................................................. 3-3 Device Manager for PXI Serial Board Ports......................................... 3-4 Port Settings Tab................................................................................... 3-7 Advanced Settings Dialog Box ............................................................. 3-8 Installing the PXI Serial Board ............................................................. 3-10 Device Manager for PXI Serial Board Ports......................................... 3-12 Port Settings Tab................................................................................... 3-15 Advanced Settings Dialog Box ............................................................. 3-16 Installing the PXI Serial Board ............................................................. 3-18 niports Configuration Utility................................................................. 3-20 General Port Settings Dialog Box......................................................... 3-21 Figure 4-1. Figure 4-2. Inserting a PCMCIA Serial Card .......................................................... 4-3 Device Manager for PCMCIA Serial Card Ports.................................. 4-4 Serial Hardware and Software for Windows x ni.com Contents Figure 4-3. Figure 4-4. Figure 4-5. Figure 4-6. Figure 4-7. Figure 4-8. Figure 4-9. Figure 4-10. Figure 4-11. Figure 4-12. Figure 4-13. Figure 5-1. Figure 5-2. Figure 5-3. Figure 5-4. Figure 5-5. Figure 5-6. Port Settings Tab ...................................................................................4-6 Advanced Settings Dialog Box .............................................................4-7 Inserting a PCMCIA Serial Card...........................................................4-10 Device Manager Ports List for PCMCIA Serial Card Correctly Installed .................................................................................4-11 Port Settings Tab ...................................................................................4-14 Advanced Port Settings Dialog Box......................................................4-15 Inserting a PCMCIA Serial Card...........................................................4-17 niports Configuration Utility .................................................................4-19 General Port Settings Dialog Box .........................................................4-20 Resource Configuration Dialog Box for the PCMCIA-485..................4-22 Resource Configuration Dialog Box for the PCMCIA-485/2...............4-23 Figure 5-7. Figure 5-8. Figure 5-9. Figure 5-10. Figure 5-11. Figure 5-12. AT Serial Board Installation..................................................................5-3 Device Manager for AT Serial Board Ports ..........................................5-4 Port Settings Tab ...................................................................................5-7 Advanced Settings Dialog Box .............................................................5-8 AT Serial Board Installation..................................................................5-11 Device Manager Ports List for AT Serial Board Correctly Installed .................................................................................5-13 Port Settings Tab ...................................................................................5-16 Advanced Port Settings Dialog Box......................................................5-17 AT Serial Board Installation..................................................................5-20 niports Configuration Utility .................................................................5-22 General Port Settings Dialog Box .........................................................5-23 PnP Port Configuration Dialog Box for the AT-232/4..........................5-25 Figure A-1. Figure A-2. Figure A-3. Figure A-4. Figure A-5. Figure A-6. DB-9 Connector Pin Locations .............................................................A-2 10-Position Modular Jack Pin Locations...............................................A-3 DB-25 Connector Pin Locations ...........................................................A-4 Connecting the Cables to Your Four-Port PCI Serial Board.................A-5 68-Pin Connector Pin Locations............................................................A-6 100-Pin Connector Pin Locations..........................................................A-8 Figure B-1. Figure B-2. Figure B-3. Figure B-4. Figure B-5. Figure B-6. Typical Full-Duplex System .................................................................B-4 Typical Half-Duplex System.................................................................B-4 Multidrop Network Using Terminating Resistors.................................B-5 Transmission Line Using Bias Resistors...............................................B-6 Straight-Through Cabling in a DTE-to-DCE Interface .........................B-7 Null-Modem Cabling in a DTE-to-DTE Interface ................................B-7 Figure C-1. Figure C-2. Figure C-3. Selecting an Interface to Uninstall ........................................................C-2 Selecting an Interface to Uninstall ........................................................C-4 Selecting an Interface to Uninstall ........................................................C-5 © National Instruments Corporation xi Serial Hardware and Software for Windows Contents Figure C-4. Figure C-5. Figure C-6. Figure C-7. Figure C-8. Figure C-9. Figure C-10. Figure C-11. Figure C-12. Selecting an Interface to Uninstall ........................................................ C-7 Selecting an Interface to Uninstall ........................................................ C-9 Selecting an Interface to Uninstall ........................................................ C-10 Selecting an Interface to Uninstall ........................................................ C-12 Selecting an Interface to Uninstall ........................................................ C-14 Selecting an Interface to Uninstall ........................................................ C-16 Selecting an Interface to Uninstall ........................................................ C-17 Selecting an Interface to Uninstall ........................................................ C-19 Selecting an Interface to Uninstall ........................................................ C-21 Figure D-1. Figure D-2. Figure D-3. Figure D-4. Selecting an Interface to Uninstall ........................................................ D-2 Ports List in Device Manager ............................................................... D-12 Ports List in Device Manager ............................................................... D-14 Multi-Function Adapter Class in the Device Manager ......................... D-17 Tables Table 1-1. PXI Board Names and Descriptions .................................................... 1-5 Table 6-1. Table 6-2. Table 6-3. Transceiver Control Modes................................................................... 6-2 Transceiver Mode Control Bytes .......................................................... 6-4 DeviceIoControl Function Input Values .............................................. 6-5 Table A-1. Table A-2. Table A-3. Table A-4. Table A-5. DB-9 Pin Descriptions .......................................................................... A-2 10-Position Modular Jack Pin Descriptions.......................................... A-3 DB-25 Pin Descriptions ........................................................................ A-4 68-Pin Connector Pin Descriptions....................................................... A-7 100-Pin Connector Pin Descriptions..................................................... A-9 Table B-1. RS-232, RS-422, and RS-485 Features................................................. B-1 Table D-1. Standard DOS-Based Addresses........................................................... D-15 Serial Hardware and Software for Windows xii ni.com About This Manual This manual contains instructions to help you install and configure the National Instruments serial hardware and the NI-Serial software for Windows 2000/NT/Me/9x. This manual includes information about the following serial hardware: • PCI-232/2, PCI-232/4, PCI-232/8, PCI-232/16, PCI-485/2, PCI-485/4, and PCI-485/8 boards in both isolated and nonisolated versions • PXI-8420 (two, four, eight, and 16 port), PXI-8421 (two, four, and eight port), PXI-8422 (two and four port), and PXI-8423 (two and four port) • PCMCIA-232, PCMCIA-232/2, PCMCIA-232/4, PCMCIA-485, and PCMCIA-485/2 • AT-232/2, AT-232/4, AT-485/2, and AT-485/4 boards in both isolated and nonisolated versions This manual assumes that you are already familiar with Windows 2000/NT/Me/9x. Conventions The following conventions appear in this manual: » The » symbol leads you through nested menu items and dialog box options to a final action. The sequence File»Page Setup»Options directs you to pull down the File menu, select the Page Setup item, and select Options from the last dialog box. ♦ The ♦ symbol indicates that the following text applies only to a specific product, a specific operating system, or a specific software version. This icon denotes a note, which alerts you to important information. This icon denotes a caution, which advises you of precautions to take to avoid injury, data loss, or a system crash. AT serial boards AT serial boards refers to all port versions of the AT serial boards. © National Instruments Corporation xiii Serial Hardware and Software for Windows About This Manual bold Bold text denotes items that you must select or click on in the software, such as menu items and dialog box options. Bold text also denotes parameter names. DTR Signal names with an overscore, such as DTR, indicate that the signal is active low. italic Italic text denotes variables, emphasis, a cross reference, or an introduction to a key concept. This font also denotes text that is a placeholder for a word or value that you must supply. monospace Text in this font denotes text or characters that you should enter from the keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames and extensions, and code excerpts. monospace bold Bold text in this font denotes the messages and responses that the computer automatically prints to the screen. This font also emphasizes lines of code that are different from the other examples. PCI serial boards PCI serial boards refers to all port versions of the PCI serial boards. PCMCIA serial boards PCMCIA serial boards refers to all versions of the PCMCIA serial boards. PXI serial boards PXI serial boards refers to all port versions of the PXI serial boards. Related Documentation The following documents contain information that you might find helpful as you read this manual: • ANSI/EIA-232-D Standard, Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange • EIA/RS-422-A Standard, Electrical Characteristics of Balanced Voltage Digital Interface Circuits • EIA-485 Standard, Standard for Electrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems • Microsoft Win32 Software Developer Kit, Online Documentation for Win32 Overviews, Win32 Reference, Microsoft Programmer’s Guide to Windows 98/95, and Microsoft Windows NT System Guide, Microsoft Corporation Serial Hardware and Software for Windows xiv ni.com About This Manual • NS16550AF Universal Asynchronous Receiver/Transmitter with FIFOs, National Semiconductor • ST16C654 Asynchronous Receiver/Transmitter with FIFOs, EXAR Corporation © National Instruments Corporation xv Serial Hardware and Software for Windows 1 Introduction This chapter explains how to use this manual, lists what you need to get started and optional equipment you can order, and briefly describes the serial hardware and the NI-Serial software. How to Use This Manual Chapter 1 Gather What You Need to Get Started Install the NI Serial Software Install the Serial Hardware Verify the Installation Chapters 2, 3, 4, and 5 No Passes? Troubleshooting Yes Configure the Serial Port Learn About Transceiver Control Modes Chapter 6 Review Programming Requirements Write Application Program © National Instruments Corporation 1-1 Serial Hardware and Software for Windows Chapter 1 Introduction What You Need to Get Started Before you install your serial hardware and the NI-Serial software, make sure you have all of the following items: ❑ Windows 2000/NT/Me/9x installed on your computer ❑ One of the following serial boards, which is included in your kit: PCI Kits – PCI-232 (two, four, eight, or 16 port) – PCI-485 (two, four, or eight port) – PCI-232 isolated (two or four port) – PCI-485 isolated (two or four port) PXI Kits – PXI-8420 (two, four, eight, or 16 port) – PXI-8421 (two, four, or eight port) – PXI-8422 (two or four port) – PXI-8423 (two or four port) PCMCIA Kits – PCMCIA-232 (one, two, or four port) – PCMCIA-485 (one or two port) AT Kits – AT-232 (two or four port) – AT-485 (two or four port) – AT-232 (two or four port) isolated – AT-485 (two or four port) isolated ❑ CD, NI-Serial Software for Windows 2000/NT/Me/9x, which is included in your kit Serial Hardware and Software for Windows 1-2 ni.com Chapter 1 Introduction Optional Equipment For more information about ordering the following optional equipment, contact National Instruments: • DB-9 RS-485 termination connector (PCI-485, PCMCIA-485, PXI-8421, PXI-8423, and AT-485 only) • 10-position modular jack to DB-9 cable (PCI, PXI, and AT four-port boards only) • 10-position modular jack to DB-25 cable (PCI, PXI, and AT four-port boards only) • 68-pin to DB-9 adapter cable (PCI and PXI eight-port boards only) • RS-232 9-pin to 9-pin null modem cable • RS-232 9-pin to 25-pin null modem cable • RS-485 9-pin to 9-pin null modem cable • Breakout box (PCI/PXI-232 16-port board only) Serial Hardware Overview PCI Kits The serial hardware gives you a variety of solutions for serial communication. The PCI-232 boards work with the RS-232 protocols, and the PCI-485 boards work with the RS-422 and RS-485 protocols. You can use the PCI-232 boards for serial communication up to distances of 50 ft. You can connect the PCI-485 boards to up to 31 devices using serial cable lengths up to 4,000 ft. Additionally, the PCI serial boards are available in a two-port version (PCI-232/2 and PCI-485/2), a four-port version (PCI-232/4 and PCI-485/4), an eight-port version (PCI-232/8 and PCI-485/8), and a sixteen-port version (PCI-232/16). The two-port versions use DB-9 connectors. The four-port versions use 10-position modular jacks to provide all four connections on a single back panel. Optional cable accessories convert the 10-position modular jacks to either DB-9 or DB-25 connectors with standard pinouts. The eight-port versions use adapter cables to convert the 68-pin connector on the board to eight DB-9 connectors. The 16-port version uses a breakout box to convert the 100-pin connector on the board to sixteen DB-9 connectors. Throughout this manual, PCI serial boards refers to all versions of the PCI serial boards. © National Instruments Corporation 1-3 Serial Hardware and Software for Windows Chapter 1 Introduction The isolated PCI-232 and PCI-485 boards are designed for applications in harsh environments. Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments. Non-isolated ports may not provide reliable communication in those situations. The isolation between each communication port and the host PC ensures the safe operation of the PC and the devices connected to other ports on the same board, in case of accidental high voltages on communication lines. The PCI-485 boards support four hardware transceiver control modes for reliable communication with two- and four-wire devices. For more information about transceiver control modes, refer to Chapter 6, Using Your Serial Hardware. All serial hardware uses standard 16550-compatible UARTs (Universal Asynchronous Receiver/Transmitters) for complete compatibility with standard PC COM ports. The serial hardware contains FIFOs (First-In-First-Out) buffers to reduce susceptibility to interrupt latency for faster transmission rates. Full Plug and Play compatibility allows switchless configuration and installation. For more information about the serial hardware specifications and operating conditions, refer to Appendix E, Specifications. PXI Kits The serial hardware gives you a variety of solutions for serial communication. The RS-232 boards (PXI-8420 and PXI-8422) work with the RS-232 protocols. The RS-485 boards (PXI-8421 and PXI-8423) work with the RS-422 and RS-485 protocols. You can use the RS-232 boards for serial communication up to distances of 50 ft. You can connect the RS-485 boards to up to 31 devices using serial cable lengths up to 4,000 ft. Additionally, the PXI serial boards are available in a two-port version, a four-port version, an eight-port version (PXI-8420 and PXI-8421 only), and a 16-port version (PXI-8420 only). The two-port versions use DB-9 connectors. The four-port versions use 10-position modular jacks to provide all four connections on a single front panel. Optional cable accessories convert the 10-position modular jacks to either DB-9 or DB-25 connectors with standard pinouts. The eight-port versions use two different adapter cables to convert the 68-pin connector on the board to eight DB-9 connectors. The 16-port version uses a breakout box to convert the 100-pin connector on the board to sixteen DB-9 connectors. Throughout this manual, PXI serial boards refers to all versions of the PXI serial boards. Serial Hardware and Software for Windows 1-4 ni.com Chapter 1 Introduction The isolated PXI boards are designed for applications in harsh environments. Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments. Non-isolated ports may not provide reliable communication in those situations. The isolation between each communication port and the host PC ensures the safe operation of the PC and the devices connected to other ports on the same board, in case of accidental high voltages on communication lines. The RS-485 boards (PXI-8421 and PXI-8423) support four hardware transceiver control modes for reliable communication with two- and four-wire devices. For more information about transceiver control modes, refer to Chapter 6, Using Your Serial Hardware. All serial hardware uses standard 16550-compatible UARTs (Universal Asynchronous Receiver/Transmitters) for complete compatibility with standard PC COM ports. The serial hardware contains FIFOs (First-In-First-Out) buffers to reduce susceptibility to interrupt latency for faster transmission rates. Full Plug and Play compatibility allows switchless configuration and installation. For more information about the serial hardware specifications and operating conditions, refer to Appendix E, Specifications. Table 1-1 lists the PXI serial board numbers and corresponding board descriptions. Table 1-1. PXI Board Names and Descriptions PXI Board Name © National Instruments Corporation Description PXI-8420 RS-232 two port RS-232 four port RS-232 eight port RS-232 16 port PXI-8421 RS-485 two port RS-485 four port RS-485 eight port PXI-8422 RS-232 two port isolated RS-232 four port isolated PXI-8423 RS-485 two port isolated RS-485 four port isolated 1-5 Serial Hardware and Software for Windows Chapter 1 Introduction PCMCIA Kits The serial hardware gives you a variety of solutions for serial communications. The PCMCIA-232 interfaces work with the RS-232 protocols, and the PCMCIA-485 interfaces work with the RS-422 and RS-485 protocols. You can use the PCMCIA-232 hardware for serial communication up to distances of 50 ft. You can connect the PCMCIA-485 hardware with up to 31 devices using serial cable lengths up to 4,000 ft. The PCMCIA-232 is available with one, two, or four ports. The PCMCIA-485 is available in a one-port version or two-port version. All PCMCIA cards come with cables for each port that terminates in a standard DB-9 D-Sub connector. Throughout this manual, references to PCMCIA serial interfaces generally refer to all versions of the interfaces. The PCMCIA-485 interfaces support four hardware transceiver control modes for reliable communication with two-wire and four-wire devices. Refer to Chapter 6, Using Your Serial Hardware, for more information about transceiver control modes. All of the serial hardware uses standard 16550-compatible UARTs (Universal Asynchronous Receiver/Transmitters) for 100 percent compatibility with standard PC COM ports. The serial hardware contains FIFOs (First-In-First-Out buffers) for reduced susceptibility to interrupt latency and faster transmission rates. Full Plug and Play compatibility gives you the convenience of switchless configuration and installation. Refer to Appendix E, Specifications, for more information about the serial hardware specifications and operating conditions. AT Kits The serial hardware gives you a variety of solutions for serial communications. The AT-232 boards work with the RS-232 protocols, and the AT-485 boards work with the RS-422 and RS-485 protocols. You can use the AT-232 hardware for serial communication up to distances of 50 ft. You can connect the AT-485 hardware with up to 31 devices using serial cable lengths up to 4,000 ft. The AT boards are available in three different versions: • Shared IRQ: All ports on the board share the same IRQ. • Isolated: All ports on the board are isolated and share the same IRQ. Serial Hardware and Software for Windows 1-6 ni.com Chapter 1 Introduction Additionally, the AT serial boards are available in a two-port version (AT-232/2 and AT-485/2) or a four-port version (AT-232/4 and AT-485/4). The two-port versions use DB-9 connectors. The four-port versions use 10-position modular jacks to provide all four connections on a single back panel. Optional cable accessories convert the 10-position modular jacks to either DB-9 or DB-25 connectors with standard pinouts. Throughout this manual, references to AT serial boards generally refer to all versions of the boards. The isolated AT-232 and AT-485 boards are designed for applications in harsh environments. Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments. The non-isolated ports may not provide reliable communication in those situations. The isolation between each communication port and the host PC ensures safe operation of the PC and the devices connected to other ports on the same board in case of accidental high voltages on communication lines. The AT-485 boards support four hardware transceiver control modes for reliable communication with two- and four-wire devices. For more information about transceiver control modes, refer to Chapter 6, Using Your Serial Hardware. All serial hardware uses standard 16550-compatible UARTs (Universal Asynchronous Receiver/Transmitters) for complete compatibility with standard PC COM ports. The serial hardware contains FIFOs (First-In-First-Out) buffers to reduce susceptibility to interrupt latency for faster transmission rates. Full Plug and Play compatibility allows switchless configuration and installation. For more information about the serial hardware specifications and operating conditions, refer to Appendix E, Specifications. © National Instruments Corporation 1-7 Serial Hardware and Software for Windows Chapter 1 Introduction NI-Serial Software Overview The NI-Serial software for Windows 2000/NT/Me/9x includes a native Windows 2000/Me/9x device driver and Windows NT kernel driver that provide full interrupt-driven, buffered I/O for multiple COM ports. You can obtain a maximum baud rate of either 460.8 KBaud (PCI/PXI-485 kits) or 115.2 KBaud (PCI/PXI/PCMCIA/AT-232 kits). You can also use up to 256 serial ports under Windows 2000 or up to 99 serial ports under Windows NT/Me/9x. The NI-Serial software also includes a configuration utility, which is fully integrated into the Windows 2000/Me/9x Device Manager and Windows NT Control Panel. For more information about software specifications, refer to Appendix E, Specifications. The NI-Serial software includes the following components: • Device driver • Diagnostic utility • Configuration utility • Product manuals Time-Saving Development Tools Your kit includes the NI-Serial software for Windows 2000/NT/Me/9x. In addition, you can order the Measurement Studio or LabVIEW software from National Instruments to speed your application development time and make it easier to communicate with your instruments. LabVIEW is an easy-to-use, graphical programming environment you can use to acquire data from thousands of different instruments, including IEEE 488.2 devices, VXI devices, serial devices, PLCs, and plug-in data acquisition boards. After you have acquired raw data, you can convert it into meaningful results using the powerful data analysis routines in LabVIEW. LabVIEW also comes with hundreds of instrument drivers, which dramatically reduce software development time, because you do not have to spend time programming the low-level control of each instrument. Serial Hardware and Software for Windows 1-8 ni.com Chapter 1 Introduction Measurement Studio bundles LabWindows/CVI for C programmers, ComponentWorks for Microsoft Visual C++ programmers, and ComponentWorks++ for Microsoft Visual C++ programmers. Measurement Studio is designed for building measurement and automation applications with the programming environment of your choice: • LabWindows/CVI is an interactive ANSI C programming environment designed for building virtual instrument applications. LabWindows/CVI delivers a drag-and-drop editor for building user interfaces, a complete ANSI C environment for building your test program logic, and a collection of automated code generation tools, as well as utilities for building automated test systems, monitoring applications, or laboratory experiments. • ComponentWorks for Visual Basic is a collection of ActiveX controls designed for building virtual instrumentation systems. Based on ActiveX technology, ComponentWorks controls are configured through simple property pages. You can use the ComponentWorks GPIB, Serial, and VISA I/O controls and property pages to set up communication with your instruments. • ComponentWorks++ for Visual C++ takes advantage of integrated C++ libraries and ActiveX to help you build measurement and automation applications. With the ComponentWorks++ instrument classes, you can use the IEEE 488.2 library and VISA, an industry-standard I/O library, to communicate with GPIB, VXI, or Serial devices using the same set of components. After you install your serial hardware and the NI-Serial software, you can use standard serial I/O functions in LabVIEW and Measurement Studio with your serial interface. If you already have one or more of these applications and want to use them with your serial interface, refer to your product documentation for information about serial I/O functions. For ordering information, contact National Instruments. © National Instruments Corporation 1-9 Serial Hardware and Software for Windows PCI Serial Hardware Installation, Verification, and Configuration 2 This chapter describes how to install the NI-Serial software and PCI serial hardware and how to verify the installation. It also describes how to configure the communication port settings. To begin your installation, see the section of this chapter containing instructions for your operating system (Windows 2000, Windows Me/9x, or Windows NT.) Windows 2000 Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows 2000: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 3. Click on the Add New Programs button and then the CD or Floppy button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button. 5. When prompted, click on the Finish button to install the program files from the CD. 6. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. 7. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows 2000, skip to the next section, Install the Hardware. Otherwise, continue to step 8. 8. If your hardware is already installed, restart Windows 2000. © National Instruments Corporation 2-1 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 9. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. When you complete the wizard, continue to the Verify the Installation section. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware If you are installing a PCI-485, you might need to adjust the value of the bias resistors, depending on your application. Bias resistors are not available on the eight-port PCI-485. For more information, refer to Appendix B, Serial Port Information. Note Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your PCI serial board, complete the following steps: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the PCI serial board. 2. Remove the top or side cover of the computer. 3. Find an unused PCI expansion slot in your computer. 4. Remove the corresponding expansion slot cover on the back panel of the computer. 5. Touch a metal part on your chassis to discharge any static electricity. 6. Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel. Make sure that you insert the board all the way into the slot. The board might seem to click firmly into place, even though it is only part of the way in. Figure 2-1 shows how to install the PCI serial board into an expansion slot. Serial Hardware and Software for Windows 2-2 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 2 1 1 3 PC 2 PCI Serial Board 3 PCI Slot Figure 2-1. PCI Serial Board Installation 7. Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer. 8. Replace the cover. 9. Turn on your computer and start Windows 2000. 10. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. © National Instruments Corporation 2-3 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The PCI serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. Figure 2-2 shows the Device Manager tab for serial hardware that is installed properly. Figure 2-2. Device Manager for PCI Serial Board Ports Serial Hardware and Software for Windows 2-4 ni.com Chapter 2 5. PCI Serial Hardware Installation, Verification, and Configuration Verify the hardware resources, as follows: a. In the Device Manager under Multi-function adapters, double-click on a serial board. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. 6. (Optional) To determine which physical port is associated with COMx, note the Port 1, Port 2, etc. entries next to the COM numbers. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. 7. Run the diagnostic utility, as follows: select Start»Programs» National Instruments»NI-Serial»Diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon. © National Instruments Corporation 2-5 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 4. Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 2-3 shows the Port Settings tab. Serial Hardware and Software for Windows 2-6 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Figure 2-3. Port Settings Tab © National Instruments Corporation 2-7 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Advanced Settings To view or change the advanced settings, click on the Advanced button. Figure 2-4 shows the Advanced Settings dialog box. Figure 2-4. Advanced Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to PCI-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Serial Hardware and Software for Windows 2-8 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows Me/9x Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows Me/9x: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 3. Click on the Install button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD, and click on the Next button. 5. When prompted, click on the Finish button to install the program files from floppy disks or CD-ROM. 6. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. 7. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows Me/9x, skip to the next section, Install the Hardware. Otherwise, continue to step 8. © National Instruments Corporation 2-9 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 8. If your hardware is already installed, restart Windows Me/9x. 9. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. Your operating system (Windows Me/9x) may show the Windows Default Driver option. If so, make sure the Windows Default Driver is selected and click on the OK button. If the Windows Default Driver option is not shown, the installation continues automatically. When you finish, continue to the Verify the Installation section. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware If you are installing a PCI-485, you might need to adjust the value of the bias resistors, depending on your application. Bias resistors are not available on the eight-port PCI-485. For more information, refer to Appendix B, Serial Port Information. Note Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your PCI serial board, complete the following steps: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the PCI serial board. 2. Remove the top or side cover of the computer. 3. Find an unused PCI expansion slot in your computer. 4. Remove the corresponding expansion slot cover on the back panel of the computer. 5. Touch a metal part on your chassis to discharge any static electricity. 6. Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel. Make sure that you insert the board all the way into the slot. The board might seem to click firmly into place, even though it is only part of the way in. Figure 2-5 shows how to install the PCI serial board into an expansion slot. Serial Hardware and Software for Windows 2-10 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 2 1 1 3 PC 2 PCI Serial Board 3 PCI Slot Figure 2-5. PCI Serial Board Installation 7. Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer. 8. Replace the cover. 9. Turn on your computer and start Windows Me/9x. 10. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. Your operating system (Windows Me/9x) may show the Windows Default Driver option. If so, make sure the Windows Default Driver is selected and click on the OK button. If the Windows Default Driver option is not shown, the installation continues automatically. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. © National Instruments Corporation 2-11 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Verify the Installation Before you verify the installation, keep in mind that the serial ports built into your computer are typically named from COM1 to COM4. Windows Me/9x typically issues port names to the ports on NI serial hardware starting with COM5, COM6, and so on. If not enough resources are available to assign to all the NI serial ports, the port with the higher COMx name is not configured. To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The PCI serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. Serial Hardware and Software for Windows 2-12 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Figure 2-6 shows the Device Manager tab for serial hardware that is installed properly. Figure 2-6. Device Manager Tab for PCI Serial Board Ports 5. © National Instruments Corporation Verify the hardware resources, as follows: a. In the Device Manager tab, under Multi-function adapters, double-click on a serial board. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. 2-13 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 6. 7. (Optional) To determine which physical port is associated with COMx, complete the following steps: a. In the Device Manager tab, under Ports (COM & LPT), double-click on the serial port (COMx). b. Click on the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. Run the diagnostic utility, as follows: select Start»Programs» National Instruments Serial»Diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows Me/9x Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Ports (COM & LPT) icon. If you want your serial ports to use the names COM1, COM2, COM3, or COM4, refer to the Common Questions section of Appendix D, Troubleshooting and Common Questions. Note Serial Hardware and Software for Windows 2-14 ni.com Chapter 2 4. PCI Serial Hardware Installation, Verification, and Configuration Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. © National Instruments Corporation To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. 2-15 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 2-7 shows the Port Settings tab. Figure 2-7. Port Settings Tab Serial Hardware and Software for Windows 2-16 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Advanced Port Settings To view or change the advanced port settings, click on the Advanced button. Figure 2-8 shows the Advanced Port Settings dialog box. Figure 2-8. Advanced Port Settings Dialog Box The following sections describe the advanced port setting options. Transceiver Mode This field shows the transceiver mode in use, and applies only to PCI-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. © National Instruments Corporation 2-17 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows NT Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows NT: 1. Log in as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel. 3. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 4. Click on the Install button. 5. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD, and click on the Next button. 6. When prompted, click the Finish button to install the program files. 7. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. Note The setup wizard backs up the Windows NT serial driver serial.sys to serial.bak and then overwrites serial.sys. You can find serial.sys in the WinNT\system32\drivers directory. 8. If your hardware is already installed, restart Windows NT and continue to the Verify the Installation section. The software installation is complete. Continue to the next section, Install the Hardware. Install the Hardware If you are installing a PCI-485, you might need to adjust the value of the bias resistors, depending on your application. Bias resistors are not available on the eight-port PCI-485. For more information, refer to Appendix B, Serial Port Information. Note Serial Hardware and Software for Windows 2-18 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your PCI serial board, complete the following steps: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the PCI serial board. 2. Remove the top or side cover of the computer. 3. Find an unused PCI expansion slot in your computer. 4. Remove the corresponding expansion slot cover on the back panel of the computer. 5. Touch a metal part on your chassis to discharge any static electricity. 6. Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel. Make sure that you insert the board all the way into the slot. The board might seem to click firmly into place, even though it is only part of the way in. Figure 2-9 shows how to install the PCI serial board into an expansion slot. 2 1 1 3 PC 2 PCI Serial Board 3 PCI Slot Figure 2-9. Installing the PCI Serial Board © National Instruments Corporation 2-19 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration 7. Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer. 8. Replace the cover. 9. Turn on your computer and start Windows NT. The hardware installation is complete. Continue to the next section, Verify the Installation. Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Determine which physical port is associated with COMx, as follows: a. Select Start»Settings»Control Panel and double-click on the niports icon. A list of installed National Instruments ports with their logical COMx names appears. If your interface is not on this list, refer to Appendix D, Troubleshooting and Common Questions. b. Select the COM port that you want to verify and click on the Settings button. The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. 2. Run the diagnostic utility, as follows: select Start»Programs»National Instruments Serial»diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 3. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Serial Hardware and Software for Windows 2-20 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows NT Control Panel. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the niports icon. A list of installed National Instruments ports appears, as shown in Figure 2-10. Figure 2-10. niports Configuration Utility 2. © National Instruments Corporation Select the port that you want to configure and refer to the following instructions: • To remove hardware information about the port from Windows NT, click on the Delete button. You should do this before you remove your hardware. • To view or change the port settings, click on the Settings button. For more information about the settings, refer to the next section, General Port Settings. • In the General Port Settings dialog box, click on the Resources button to view the resources for the port. 2-21 Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration General Port Settings The following sections describe the options you can set in the General Port Settings dialog box, shown in Figure 2-11. Figure 2-11. General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the logical COMx name of the selected port. Transceiver Mode The Transceiver Mode list box shows the transceiver mode in use, and applies only to PCI-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. FIFO Enabled You can use the FIFO Enabled checkbox to enable or disable the FIFO buffers on the selected port. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. Serial Hardware and Software for Windows 2-22 ni.com Chapter 2 PCI Serial Hardware Installation, Verification, and Configuration FIFO Buffer Size The Receive FIFO size control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit FIFO size control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive FIFO size value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive FIFO size value is above your data sizes, your system is less efficient. Therefore, set the Receive FIFO size value below your data sizes. Resources To view the resource configuration dialog box for the selected port, click on the Resources button. You cannot change these resources; they are automatically assigned. © National Instruments Corporation 2-23 Serial Hardware and Software for Windows PXI Serial Hardware Installation, Verification, and Configuration 3 This chapter describes how to install the NI-Serial software and PXI serial hardware and how to verify the installation. It also describes how to view or change the communication port settings. To begin your installation, see the section of this chapter containing instructions for your operating system (Windows 2000, Windows Me/9x, or Windows NT.) Windows 2000 Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows 2000: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 3. Click on the Add New Programs button and then the CD or Floppy button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button. 5. When prompted, click on the Finish button to install the program files from the CD. 6. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. 7. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows 2000, skip to the next section, Install the Hardware. Otherwise, continue to step 8. 8. If your hardware is already installed, restart Windows 2000. © National Instruments Corporation 3-1 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 9. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. When you complete the wizard, continue to the Verify the Installation section. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your PXI serial board, complete the following steps: 1. Turn off your PXI or CompactPCI chassis. Keep the chassis plugged in so that it remains grounded while you install the PXI serial board. 2. Find an unused PXI or CompactPCI 5 V peripheral slot. 3. Remove the corresponding filler panel. 4. Touch a metal part on your chassis to discharge any static electricity. 5. Insert the PXI serial board into the 5 V slot. Use the injector/ejector handle to fully inject the device into place. Figure 3-1 shows how to install the PXI serial board into a PXI or CompactPCI chassis. Serial Hardware and Software for Windows 3-2 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 3 ON STA ND BY 1 2 3 4 5 6 7 8 2 4 1 1 Injector/Ejector Handle (In Down Position) 2 PXI Serial Board 3 4 PXI Chassis Injector/Ejector Rail Figure 3-1. Installing the PXI Serial Board 6. Screw the PXI serial board front panel to the front panel mounting rail of the PXI or CompactPCI chassis. 7. Turn on your PXI or CompactPCI chassis and start Windows 2000. 8. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. © National Instruments Corporation 3-3 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The PXI serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. Figure 3-2 shows the Device Manager tab for serial hardware that is installed properly. Figure 3-2. Device Manager for PXI Serial Board Ports Serial Hardware and Software for Windows 3-4 ni.com Chapter 3 5. PXI Serial Hardware Installation, Verification, and Configuration Verify the hardware resources, as follows: a. In the Device Manager under Multi-function adapters, double-click on a serial board. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. 6. (Optional) To determine which physical port is associated with COMx, note the Port 1, Port 2, etc. entries next to the COM numbers. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. 7. Run the diagnostic utility, as follows: select Start»Programs» National Instruments»NI-Serial»Diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon. © National Instruments Corporation 3-5 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 4. Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 3-3 shows the Port Settings tab. Serial Hardware and Software for Windows 3-6 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Figure 3-3. Port Settings Tab Advanced Settings To view or change the advanced settings, click on the Advanced button. Figure 3-4 shows the Advanced Settings dialog box. © National Instruments Corporation 3-7 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Figure 3-4. Advanced Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to RS-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. Serial Hardware and Software for Windows 3-8 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows Me/9x Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows Me/9x: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 3. Click on the Install button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To go back and change values where appropriate, click on the Back button. To exit the setup wizard at any time, click on the Cancel button. 5. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows Me/9x, skip to the next section, Install the Hardware. Otherwise, continue to step 6. 6. If your hardware is already installed, restart Windows Me/9x. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. Make sure that Windows Default Driver is selected and click on the OK button. When you finish, continue to the Verify the Installation section. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. © National Instruments Corporation 3-9 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Install the Hardware Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your PXI serial board, complete the following steps: 1. Turn off your PXI or CompactPCI chassis. Keep the chassis plugged in so that it remains grounded while you install the PXI serial board. 2. Find an unused PXI or CompactPCI 5 V peripheral slot. 3. Remove the corresponding filler panel. 4. Touch a metal part on your chassis to discharge any static electricity. 5. Insert the PXI serial board into the 5 V slot. Use the injector/ejector handle to fully inject the device into place. Figure 3-5 shows how to install the PXI serial board into a PXI or CompactPCI chassis. 3 ON STA ND BY 1 2 3 4 5 6 7 8 2 4 1 1 Injector/Ejector Handle (In Down Position) 2 PXI Serial Board 3 4 PXI Chassis Injector/Ejector Rail Figure 3-5. Installing the PXI Serial Board Serial Hardware and Software for Windows 3-10 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 6. Screw the PXI serial board front panel to the front panel mounting rail of the PXI or CompactPCI chassis. 7. Turn on your PXI or CompactPCI chassis and start Windows Me/9x. 8. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. Make sure that Windows Default Driver is selected and click on the OK button. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. Verify the Installation Before you verify the installation, keep in mind that the serial ports built into your computer are typically named from COM1 to COM4. Windows Me/9x typically issues port names to the ports on NI serial hardware starting with COM5, COM6, and so on. If not enough resources are available to assign to all the NI serial ports, the port with the higher COMx name is not configured. To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The PXI serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. © National Instruments Corporation 3-11 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Figure 3-6 shows the Device Manager tab for serial hardware that is installed properly. Figure 3-6. Device Manager for PXI Serial Board Ports 5. Verify the hardware resources, as follows: a. In the Device Manager tab, under Multi-function adapters, double-click on a serial board. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. Serial Hardware and Software for Windows 3-12 ni.com Chapter 3 6. 7. PXI Serial Hardware Installation, Verification, and Configuration (Optional) To determine which physical port is associated with COMx, complete the following steps: a. In the Device Manager tab, under Ports (COM & LPT), double-click on the serial port (COMx). b. Click on the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. Run the diagnostic utility, as follows: select Start»Programs»National Instruments Serial»diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows Me/9x Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Ports (COM & LPT) icon. If you want your serial ports to use the names COM1, COM2, COM3, or COM4, refer to the Common Questions section of Appendix D, Troubleshooting and Common Questions. Note © National Instruments Corporation 3-13 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 4. Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. Serial Hardware and Software for Windows 3-14 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 3-7 shows the Port Settings tab. Figure 3-7. Port Settings Tab © National Instruments Corporation 3-15 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Advanced Port Settings To view or change the advanced port settings, click on the Advanced button. Figure 3-8 shows the Advanced Port Settings dialog box. Figure 3-8. Advanced Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to RS-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. Serial Hardware and Software for Windows 3-16 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows NT Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows NT: 1. Log in as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel. 3. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 4. Click on the Install button. 5. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x, and click on the Next button. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To go back and change values where appropriate, click on the Back button. To exit the setup wizard at any time, click on the Cancel button. Note The setup wizard backs up the Windows NT serial driver serial.sys to serial.bak and then overwrites serial.sys. You can find serial.sys in the WinNT\system32\drivers directory. 6. If you your hardware is already installed, restart Windows NT and continue to the Verify the Installation section. The software installation is complete. Continue to the next section, Install the Hardware. Install the Hardware Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution © National Instruments Corporation 3-17 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration To install your PXI serial board, complete the following steps: 1. Turn off your PXI or CompactPCI chassis. Keep the PXI or CompactPCI chassis plugged in so that it remains grounded while you install the PXI serial board. 2. Find an unused PXI or CompactPCI 5 V peripheral slot. 3. Remove the corresponding filler panel. 4. Touch a metal part on your chassis to discharge any static electricity. 5. Insert the PXI serial board into the 5 V slot. Use the injector/ejector handle to fully inject the device into place. Figure 3-9 shows how to install the PXI serial board into a PXI or CompactPCI chassis. 3 ON STA ND BY 1 2 3 4 5 6 7 8 2 4 1 1 2 Injector/Ejector Handle (In Down Position) PXI Serial Board 3 4 PXI Chassis Injector/Ejector Rail Figure 3-9. Installing the PXI Serial Board Serial Hardware and Software for Windows 3-18 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration 6. Screw the PXI serial board front panel to the front panel mounting rail of the PXI or CompactPCI chassis. 7. Turn on your PXI or CompactPCI chassis and start Windows NT. The serial hardware installation is complete. Continue to the next section, Verify the Installation. Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Determine which physical port is associated with COMx, as follows: a. Select Start»Settings»Control Panel and double-click on the niports icon. A list of installed National Instruments ports with their logical COMx names appears. If your interface is not on this list, refer to Appendix D, Troubleshooting and Common Questions. b. Select the COM port that you want to verify and click on the Settings button. The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. 2. Run the diagnostic utility, as follows: select Start»Programs»National Instruments Serial»diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 3. © National Instruments Corporation After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. 3-19 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows NT Control Panel. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the niports icon. A list of installed National Instruments ports appears, as shown in Figure 3-10. Figure 3-10. niports Configuration Utility 2. Select the port that you want to configure and refer to the following instructions: • To remove hardware information about the port from Windows NT, click on the Delete button. You should do this before you remove your hardware. • To view or change the port settings, click on the Settings button. For more information about the settings, refer to the next section, General Port Settings. • In the General Port Settings dialog box, click on the Resources button to view the resources for the port. Serial Hardware and Software for Windows 3-20 ni.com Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration General Port Settings The following sections describe the options you can set in the General Port Settings dialog box, shown in Figure 3-11. Figure 3-11. General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the logical COMx name of the selected port. Transceiver Mode The Transceiver Mode list box shows the transceiver mode in use, and applies only to RS-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. FIFO Enabled You can use the FIFO Enabled checkbox to enable or disable the FIFO buffers on the selected port. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. © National Instruments Corporation 3-21 Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation, Verification, and Configuration FIFO Buffer Size The Receive FIFO size control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit FIFO size control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive FIFO size value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive FIFO size value is above your data sizes, your system is less efficient. Therefore, set the Receive FIFO size value below your data sizes. Resources To view the resource configuration dialog box for the selected port, click on the Resources button. You cannot change these resources; they are automatically assigned. Serial Hardware and Software for Windows 3-22 ni.com PCMCIA Serial Hardware Installation, Verification, and Configuration 4 This chapter describes how to install the NI-Serial software and PCMCIA serial hardware and how to verify the installation. It also describes how to view or change the communication port settings. To begin your installation, see the section of this chapter containing instructions for your operating system (Windows 2000, Windows Me/9x, or Windows NT.) Windows 2000 Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows 2000: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. 3. Click on the Add New Programs button and then the CD or Floppy button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button. 5. When prompted, click on the Finish button to install the program files from the CD. 6. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. 7. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows 2000, skip to the next section, Install the Hardware. Otherwise, continue to step 8. © National Instruments Corporation 4-1 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration 8. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. When you complete the wizard, continue to the Verify the Installation section. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware To install the PCMCIA-232 or PCMCIA-485 in your computer, first start Windows 2000. If the card is not already inserted, insert it into a free PC Card (PCMCIA) socket the same way you insert a disk into a floppy drive. The card has no jumpers or switches to set, and you do not need to shut down the system before you insert it. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Serial Hardware and Software for Windows 4-2 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Figure 4-1 shows how to insert a PCMCIA serial card and how to connect the cable. 1 2 1 PCMCIA Socket 2 PCMCIA Serial Cable Figure 4-1. Inserting a PCMCIA Serial Card The serial hardware installation is complete. Continue to the next section, Verify the Installation. Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The PCMCIA serial cards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. © National Instruments Corporation 4-3 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Figure 4-2 shows the Device Manager tab for serial hardware that is installed properly. Figure 4-2. Device Manager for PCMCIA Serial Card Ports 5. 6. Verify the hardware resources, as follows: a. In the Device Manager under Multi-function adapters, double-click on a serial card. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. (Optional) To determine which physical port is associated with COMx, note the Port 1, Port 2, etc. entries next to the COM numbers. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. Serial Hardware and Software for Windows 4-4 ni.com Chapter 4 7. PCMCIA Serial Hardware Installation, Verification, and Configuration Run the diagnostic utility, as follows: select Start»Programs» National Instruments»NI-Serial»Diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon. 4. Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. © National Instruments Corporation To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. 4-5 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 4-3 shows the Port Settings tab. Figure 4-3. Port Settings Tab Serial Hardware and Software for Windows 4-6 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Advanced Settings To view or change the advanced settings, click on the Advanced button. Figure 4-4 shows the Advanced Settings dialog box. Figure 4-4. Advanced Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to PCMCIA-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. © National Instruments Corporation 4-7 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows Me/9x Install the Software Install the NI-Serial software for Windows Me/9x before you install the hardware: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs dialog box appears. 3. Click on the Install button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button to proceed. The software installation wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. You can go back and change values where appropriate by clicking on the Back button. You can exit the setup where appropriate by clicking on the Cancel button. Serial Hardware and Software for Windows 4-8 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration 5. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows Me/9x, skip to the next section, Install the Hardware. Otherwise, continue to Step 6. 6. If your hardware is already installed, restart Windows Me/9x. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. When you finish, continue to the Verify the Installation section. If no New Hardware Found dialog box appears, refer to the section Forcing Windows to Detect Your Hardware in Appendix D, Troubleshooting and Common Questions. Install the Hardware To install the PCMCIA-232 or PCMCIA-485 in your computer, first start Windows Me/9x. If the card is not already inserted, insert it into a free PC Card (PCMCIA) socket the same way you insert a disk into a floppy drive. The card has no jumpers or switches to set, and you do not need to shut down the system before you insert it. Windows Me/9x automatically displays one or more New Hardware Found dialog boxes when it detects and configures a PC Card. If the New Hardware Found dialog box does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. © National Instruments Corporation 4-9 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Figure 4-5 shows how to insert a PCMCIA serial card and how to connect the cable. 1 2 1 PCMCIA Socket 2 PCMCIA Serial Cable Figure 4-5. Inserting a PCMCIA Serial Card The serial hardware installation is complete. Continue to the next section, Verify the Installation. Verify the Installation When you begin to verify the installation, keep in mind that the serial ports built into the computer are typically named from COM1 to COM4. Windows Me/9x typically issues port names to the ports on NI serial hardware starting with COM5, COM6, and so on. If not enough resources are available to assign to all the NI serial ports, the port with the higher COMx name is left unconfigured. Double-click on the System icon in the Control Panel. In the System Properties window that appears, select the Device Manager tab, and click on the View devices by type button at the top of the page. If necessary, double-click on the Ports (COM & LPT) icon to view all of the ports. Serial Hardware and Software for Windows 4-10 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration The two-port and four-port PCMCIA cards are configured as devices belonging to the “multi-function adapters” class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. If you have installed one of these interfaces, double-click on the Multi-function adapters icon as well as the Ports (COM & LPT) icon. If a circled exclamation point appears through the port icon, the serial port is not installed properly. A problem with the port could have occurred because Windows Me/9x could not acquire resources for the port, or because an interrupt request resource conflict exists. If no circled exclamation point appears, the serial hardware is installed correctly. Figure 4-6 shows an example of NI serial hardware that is installed properly. Figure 4-6. Device Manager Ports List for PCMCIA Serial Card Correctly Installed © National Instruments Corporation 4-11 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Verify the Hardware Resources For every port of the newly installed serial interface, double-click on the name of the serial port in the Device Manager. Then, click on the Resources tab. If the resources were assigned correctly, the Resources page shows which resources are assigned to your serial ports. If Windows Me/9x did not assign any resources to the port, the Resources page shows only a Set Configuration Manually button. Click on the Set Configuration Manually button and try to assign conflict-free resources to your serial hardware. For instructions, refer to the Selecting Conflict-Free Resources section of Appendix D, Troubleshooting and Common Questions. You might have to free an interrupt request level so that one can be assigned to your serial hardware. For instructions, refer to the section Freeing an Interrupt Request Level in Appendix D, Troubleshooting and Common Questions. When you have finished verifying the hardware resources, proceed to the next section. Determine Which Physical Port Is Associated with COMx For every port of the newly installed serial interface, double-click on the name of the serial port in the Device Manager. Then, click on the Port Settings tab. The top of this page displays the serial number of the serial hardware, and the physical port number starting at 1. When you have finished verifying the driver installation and physical port, proceed to the next section. Run the Diagnostic Test To verify and test the installation, run the diagnostic program that came with your NI-Serial software. The diagnostic program verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. To run the test, select the diagnostics item under Start»Programs» National Instruments Serial. If the diagnostic test completes with no failures, your serial hardware and software are installed properly. If it fails, refer to Appendix D, Troubleshooting and Common Questions, for troubleshooting instructions. Serial Hardware and Software for Windows 4-12 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows Me/9x Device Manager. You can use it to examine or modify the configuration of the serial port. Follow these steps to configure the serial port. Repeat the configuration procedure for each serial port in your system. 1. Select Start»Settings»Control Panel and double-click on the System icon. The System Properties window appears. 2. Select the Device Manager tab, and click on the View devices by type button at the top of the page. 3. Double-click on the Ports (COM & LPT) icon. 4. Double-click on the name of the port you want to configure. You can now view or change information about your serial port in the following ways: • Click on the Resources tab to view information about the hardware resources assigned to the serial port. • Click on the Port Settings tab to view information about the software configuration for the serial port. Refer to the next section, Port Settings Tab, for more information. • On the Port Settings tab, click on the Advanced button to change the RS-485 transceiver mode and to enable or disable the FIFOs on the serial hardware. Refer to the next section, Port Settings Tab, for more information. If you use two-wire TXRDY mode, FIFOs must be enabled. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note After you have selected the serial port parameters for the current port, click on the OK button to save the changes or click on the Cancel button to exit the dialog box without saving changes. © National Instruments Corporation 4-13 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Port Settings Tab On the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of the setting. When you click on the arrow button, a list of valid values for that setting appears. Select the desired setting from the list. Figure 4-7 shows the Port Settings tab. Figure 4-7. Port Settings Tab Serial Hardware and Software for Windows 4-14 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Advanced Port Settings You can view or change the advanced port settings by clicking on the Advanced button on the Port Settings tab. Figure 4-8 shows the Advanced Port Settings dialog box. Figure 4-8. Advanced Port Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to PCMCIA-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. © National Instruments Corporation 4-15 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration If you want your serial hardware ports to use the names COM1, COM2, COM3, or COM4, refer to the Common Questions section of Appendix D, Troubleshooting and Common Questions. Note Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows NT Install the NI-Serial Software Install the NI-Serial software for Windows NT before you install the hardware. 1. Log on as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel. 3. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs dialog box appears. 4. Click on the Install button. 5. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button to proceed. The software installation wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. You can go back and change values where appropriate by clicking on the Back button. You can exit the setup where appropriate by clicking on the Cancel button. Note This installation backs up the Microsoft Windows NT serial driver serial.sys to serial.bak and then overwrites serial.sys. You can find serial.sys in the Windows NT...\system32\drivers directory. The software installation is complete. Proceed to the next section, Install the PCMCIA Serial Hardware. Serial Hardware and Software for Windows 4-16 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Install the PCMCIA Serial Hardware Complete the following steps to install the PCMCIA-232 or PCMCIA-485 in your computer: 1. Shut down the computer. 2. Insert the card into a free PC Card (PCMCIA) socket the same way you insert a disk into a floppy drive. The card has no jumpers or switches to set. 3. Power on the computer and start Windows NT. Figure 4-9 shows how to insert a PCMCIA serial card and how to connect the cable. 1 2 1 PCMCIA Socket 2 PCMCIA Serial Cable Figure 4-9. Inserting a PCMCIA Serial Card Proceed to the next section, Select Resources for the PCMCIA Card. © National Instruments Corporation 4-17 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Select Resources for the PCMCIA Card Complete the following steps to select resources for your PCMCIA card. 1. Select Start»Settings»Control Panel. 2. Double-click on the niports icon. 3. Select the PCMCIA card you just installed from the Add a New PCMCIA Card list, and click on the Add button. 4. In the Resource Configuration dialog box, select nonconflicting base I/O address and IRQ settings for your port/card, and click on OK. For more information on selecting resources for your port/card, refer to the Resource Settings section. 5. Exit niports and restart the computer. After you have selected resources for your PCMCIA card, proceed to the next section, Verify the Installation. Verify the Installation Determine Which Physical Port Is Associated with COMx Select Start»Settings»Control Panel, and double-click on niports. A list showing installed National Instruments ports with their logical COMx names appears. If your interface is not on the list, refer to Appendix D, Troubleshooting and Common Questions. Select the COM port you want and click on the Settings button to display the General Port Settings dialog box for that port. This dialog box displays the physical port number starting at 1. When you have finished verifying the driver installation and physical port, proceed to the next section, Run the Diagnostic Test. Run the Diagnostic Test To verify and test the installation, run the diagnostic program that came with your NI-Serial software. The diagnostic program verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. To run the test, select the diagnostics item under Start»Programs» National Instruments Serial. Serial Hardware and Software for Windows 4-18 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration If the diagnostic test completes with no failures, your serial hardware and software are installed properly. If it fails, refer to Appendix D, Troubleshooting and Common Questions, for troubleshooting instructions. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows NT Control Panel. You can use it to examine or modify the configuration of the serial port. Follow these steps to configure the serial port. 1. Select Start»Settings»Control Panel and double-click on the niports icon. A list of National Instruments ports appears, as shown in Figure 4-10. Figure 4-10. niports Configuration Utility 2. Select the port you are interested in. 3. Click on the Settings button to view or configure the port settings. Refer to the next section, General Port Settings, for more information. 4. Click on the Resources button in the General Port Settings dialog box to view or configure the resources for the port. Refer to the Resource Settings section, for more information. © National Instruments Corporation 4-19 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration 5. Click on Delete to remove hardware information about the port from Windows NT. You should do this before you physically remove your PCMCIA card. 6. Click on Add to configure resources for a new PCMCIA card. General Port Settings This section describes the options you can set in the General Port Settings dialog box, shown in Figure 4-11. Figure 4-11. General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the COMx name of the port selected. Transceiver Mode The transceiver mode selection shows the transceiver mode in use, and applies only to PCMCIA-485 cards. Refer to Chapter 6, Using Your Serial Hardware, for more information about transceiver modes. If you use two-wire TXRDY mode, FIFOs must be enabled. Serial Hardware and Software for Windows 4-20 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration FIFO Enabled You can use the FIFO Enabled control to enable or disable the FIFO buffers on the serial port. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. FIFO Buffers The FIFO buffer control is available by clicking on the Advanced button on the Port Settings tab. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The receive FIFO trigger denotes the number of characters received in the FIFO before the PC is interrupted to read the data. The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. Consider the following points when selecting FIFO settings: • You can select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead. • If transfer rates are high, you can lower receive FIFO settings to reduce the number of interrupts and therefore prevent overrun errors due to interrupt latency. • If data transfer sizes are small, selecting receive FIFO settings just above data sizes can reduce efficiency, so select lower settings. Resources Click on the Resources button to display the resource configuration dialog box for the port. For more information on resource configuration, refer to the next section, Resource Settings. © National Instruments Corporation 4-21 Serial Hardware and Software for Windows Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration Resource Settings The following sections explain the resource configuration options for each serial interface. PCMCIA-232, PCMCIA-485, PCMCIA-232/4 Figure 4-12 shows the resource configuration dialog box for a PCMCIA-485. The PCMCIA-232 and PCMCIA-232/4 dialog boxes are similar. Figure 4-12. Resource Configuration Dialog Box for the PCMCIA-485 Base I/O Address: The base I/O address assigned to the port. IRQ: The IRQ assigned to the port. Length: The size (in bytes) of the I/O window. For the PCMCIA-232 and PCMCIA-485, the length is 8 (the size of the I/O window for one port). For the PCMCIA-232/4, the length is 32 bytes (the size of the I/O window for four ports). Serial Hardware and Software for Windows 4-22 ni.com Chapter 4 PCMCIA Serial Hardware Installation, Verification, and Configuration PCMCIA-232/2, PCMCIA-485/2 These cards require two base I/O settings, one for each port, and they share an IRQ. Figure 4-13 shows the resource configuration dialog box for a PCMCIA-485/2. The PCMCIA-232/2 dialog box is similar. Figure 4-13. Resource Configuration Dialog Box for the PCMCIA-485/2 Base I/O Address: The base I/O addresses assigned to the two ports. IRQ: The IRQ shared by the two ports. Length: The size of each I/O window (in bytes). When you select resources for the PCMCIA cards, use the Microsoft Windows NT diagnostics utility to make sure that the resources have not been assigned to any other device. This utility displays a list of I/O port addresses and IRQ levels that are currently being used in your system. Note © National Instruments Corporation 4-23 Serial Hardware and Software for Windows AT Serial Hardware Installation, Verification, and Configuration 5 This chapter describes how to install the NI-Serial software and AT serial hardware and how to verify the installation. It also describes how to view or change the communication port settings. To begin your installation, see the section of this chapter containing instructions for your operating system (Windows 2000, Windows Me/9x, or Windows NT.) Windows 2000 Install the Software Before you install your serial hardware, complete the following steps to install the NI-Serial software for Windows 2000: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs appears. 3. Click on the Add New Programs button and then the CD or Floppy button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button. 5. When prompted, click on the Finish button to install the program files from the CD. 6. The setup wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. To exit the setup wizard at any time, click on the Cancel button. 7. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows 2000, skip to the next section, Install the Hardware. Otherwise, continue to step 8. 8. If your hardware is already installed, restart Windows 2000. © National Instruments Corporation 5-1 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 9. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. When you complete the wizard, continue to the Verify the Installation section. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware If you are installing a AT-485, you might need to adjust the value of the bias resistors, depending on your application. For more information, refer to Appendix B, Serial Port Information. Note Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your AT serial board, complete the following steps: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the AT serial board. 2. Remove the top or side cover of the computer. 3. Find an unused AT expansion slot in your computer. 4. Remove the corresponding expansion slot cover on the back panel of the computer. 5. Touch a metal part on your chassis to discharge any static electricity. 6. Insert the AT serial board into the slot with the serial connectors toward the opening on the back panel. Make sure that you insert the board all the way into the slot. The board might seem to click firmly into place, even though it is only part of the way in. Figure 5-1 shows how to install the AT serial board into an expansion slot. Serial Hardware and Software for Windows 5-2 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 3 1 2 1 PC 2 AT Socket 3 AT Serial Card Figure 5-1. AT Serial Board Installation 7. Screw the AT serial board mounting bracket to the back panel mounting rail of the computer. 8. Replace the cover. 9. Turn on your computer and start Windows 2000. 10. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. If the Found New Hardware Wizard does not appear, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. © National Instruments Corporation 5-3 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Verify the Installation To verify the hardware and software installation, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon to display all of the ports. 4. Double-click on the Multi-function adapters icon. The AT serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. Figure 5-2 shows the Device Manager tab for serial hardware that is installed properly. Figure 5-2. Device Manager for AT Serial Board Ports Serial Hardware and Software for Windows 5-4 ni.com Chapter 5 5. AT Serial Hardware Installation, Verification, and Configuration Verify the hardware resources, as follows: a. In the Device Manager under Multi-function adapters, double-click on a serial board. b. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. c. Repeat steps 5a and 5b until you have verified the resources for each board. 6. (Optional) To determine which physical port is associated with COMx, note the Port 1, Port 2, etc. entries next to the COM numbers. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. 7. Run the diagnostic utility, as follows: select Start»Programs» National Instruments»NI-Serial»Diagnostics. The diagnostic utility verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. If the test is successful, your serial hardware and software are installed properly. If the test fails, refer to Appendix D, Troubleshooting and Common Questions, to troubleshoot the problem. 8. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 Device Manager. You can use it to view or change the configuration of your serial ports. To configure a serial port, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon. © National Instruments Corporation 5-5 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 4. Double-click on the port you want to configure and refer to the following instructions: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. Serial Hardware and Software for Windows 5-6 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Port Settings Tab In the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of a field. When you click on the arrow button, a list of valid values for that field appears and you can select the desired setting from the list. Figure 5-3 shows the Port Settings tab. Figure 5-3. Port Settings Tab © National Instruments Corporation 5-7 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Advanced Settings To view or change the advanced settings, click on the Advanced button. Figure 5-4 shows the Advanced Settings dialog box. Figure 5-4. Advanced Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode This field shows the transceiver mode in use, and applies only to AT-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Serial Hardware and Software for Windows 5-8 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Use FIFO Buffers FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data. The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. When you configure FIFO settings, consider the following points: • You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead. • If transfer rates are high, you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency. • If your data transfer sizes are small and your Receive Buffer value is above your data sizes, your system is less efficient. Therefore, set the Receive Buffer value below your data sizes. Restore Defaults To reset the fields to their default values at any time, click on the Restore Defaults button. Windows Me/9x Install the Software Install the NI-Serial software for Windows Me/9x before you install the hardware. 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs dialog box appears. 3. Click on the Install button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD, and click on the Next button to proceed. The software installation wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. You can go back and change values where appropriate by clicking on the Back button. You can exit the setup where appropriate by clicking on the Cancel button. © National Instruments Corporation 5-9 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 5. If you need to install your hardware, or if this is your first time to install the NI-Serial software for Windows Me/9x, skip to the next section, Install the Hardware. Otherwise, continue to Step 6. 6. If your hardware is already installed, restart Windows Me/9x. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes, but you must make sure Windows Default Driver is selected and click on OK. When you finish, continue to the Verify the Installation section. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. Install the Hardware This section describes how to install your AT serial hardware. If you are installing a AT-485, you might need to adjust the value of the bias resistors, depending on your application. For more information, refer to Appendix B, Serial Port Information. Note Before you remove your board from the package, touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy, which can damage several components on your serial board. Caution To install your AT serial board, complete the following steps: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the AT serial board. 2. Remove the top or side cover of the computer. 3. Find an unused AT expansion slot in your computer. 4. Remove the corresponding expansion slot cover on the back panel of the computer. 5. Touch a metal part on your chassis to discharge any static electricity. 6. Insert the AT serial board into the slot with the serial connectors toward the opening on the back panel. Make sure that you insert the board all the way into the slot. The board might seem to click firmly into place, even though it is only part of the way in. Figure 5-5 shows how to install the AT serial board into an expansion slot. Serial Hardware and Software for Windows 5-10 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 3 1 2 1 PC 2 AT Socket 3 AT Serial Card Figure 5-5. AT Serial Board Installation 7. Screw the AT serial board mounting bracket to the back panel mounting rail of the computer. 8. Replace the cover. 9. Turn on your computer and start Windows Me/9x. 10. Watch for Windows Me/9x to display one or more New Hardware Found dialog boxes. In the dialog box, select Windows Default Driver and click on OK. If no New Hardware Found dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix D, Troubleshooting and Common Questions. The serial hardware installation is complete. Continue to the next section, Verify the Installation. © National Instruments Corporation 5-11 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Verify the Installation When you begin to verify the installation, keep in mind that the serial ports built into the computer are typically named from COM1 to COM4. Windows Me/9x typically issues port names to the ports on NI serial hardware starting with COM5, COM6, and so on. If not enough resources are available to assign to all the NI serial ports, the port with the higher COMx name is left unconfigured. Double-click on the System icon in the Control Panel. In the System Properties window that appears, select the Device Manager tab, and click on the View devices by type button at the top of the page. If necessary, double-click on the Ports (COM & LPT) icon to view all of the ports. The shared IRQ AT serial boards are configured as devices belonging to the “multi-function adapters” class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. If you have installed one of these interfaces, double-click on the Multi-function adapters icon as well as the Ports (COM & LPT) icon to look at the ports resources. To modify the hardware resources, double-click on the Multi-Function adapters icon. If a circled exclamation point appears through the port icon, the serial port is not installed properly. A problem with the port may have occurred because Windows Me/9x could not acquire resources for the port, or because an interrupt request resource conflict exists. If no circled exclamation point appears, the serial hardware is installed correctly. Figure 5-6 shows an example of NI serial hardware that is installed properly. Serial Hardware and Software for Windows 5-12 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Figure 5-6. Device Manager Ports List for AT Serial Board Correctly Installed Verify the Hardware Resources For every port of the newly installed serial interface, double-click on the name of the serial port in the Device Manager. Then, click on the Resources tab. If the resources were assigned correctly, the Resources page shows which resources are assigned to your serial ports. If Windows Me/9x did not assign any resources to the port, the Resources page shows only a Set Configuration Manually button. Click on the Set Configuration Manually button and try to assign conflict-free resources to your serial hardware. For instructions, refer to the Selecting Conflict-Free Resources section of Appendix D, Troubleshooting and Common Questions. You may have to free an interrupt request level so that one can be assigned to your serial hardware. For instructions, refer to the Freeing an Interrupt Request Level section in Appendix D, Troubleshooting and Common Questions. When you have finished verifying the hardware resources, proceed to the next section. © National Instruments Corporation 5-13 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Determine Which Physical Port Is Associated with COMx For every port of the newly installed serial interface, double-click on the name of the serial port in the Device Manager. Then, click on the Port Settings tab. The top of this page displays the serial number of the serial hardware, and the physical port number starting at 1. On all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. When you have finished verifying the driver installation and physical port, proceed to the next section. Run the Diagnostic Test To verify and test the installation, run the diagnostic program that came with your NI-Serial software. The diagnostic program verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. To run the test, select the diagnostics item under Start»Programs» National Instruments Serial. If the diagnostic test completes with no failures, your serial hardware and software are installed properly. If it fails, refer to Appendix D, Troubleshooting and Common Questions, for troubleshooting instructions. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows Me/9x Device Manager. You can use it to view or change the configuration of your serial ports. Follow these steps to configure the serial port. Repeat the configuration procedure for each serial port in your system. 1. Select Start»Settings»Control Panel and double-click on the System icon. The System Properties window appears. 2. Select the Device Manager tab, and click on the View devices by type button at the top of the page. Serial Hardware and Software for Windows 5-14 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 3. Double-click on the Ports (COM & LPT) icon. 4. Double-click on the name of the port you want to configure. You can now view or change information about your serial port in the following ways: • To view the hardware resources assigned to the serial port, click on the Resources tab. • To view or change the port settings, click on the Port Settings tab. For more information about the settings, refer to the next section, Port Settings Tab. • To change the RS-485 transceiver mode, or to enable or disable the FIFOs on the serial hardware, in the Port Settings tab, click on the Advanced button. For more information about the settings, refer to the next section, Port Settings Tab. If you use two-wire TXRDY mode, FIFOs must be enabled. Transceiver modes apply to RS-485 interfaces only. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. Note 5. © National Instruments Corporation To save your changes, click on the OK button. To exit without saving the changes, click on the Cancel button. 5-15 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Port Settings Tab On the Port Settings tab, you can change any of the settings by clicking on the arrow button to the right of the setting. When you click on the arrow button, a list of valid values for that setting appears. Select the desired setting from the list. Figure 5-7 shows the Port Settings tab. Figure 5-7. Port Settings Tab Serial Hardware and Software for Windows 5-16 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Advanced Port Settings You can view or change the advanced port settings by clicking on the Advanced button on the Port Settings tab. Figure 5-8 shows the Advanced Port Settings dialog box. Figure 5-8. Advanced Port Settings Dialog Box The following sections describe the advanced settings options. Transceiver Mode The transceiver mode selection is available by clicking on the Advanced button on the Port Settings tab. It shows the transceiver mode in use, and applies only to AT-485 boards. For more information about transceiver modes, refer to Chapter 6, Using Your Serial Hardware. © National Instruments Corporation 5-17 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Use FIFO Buffers The FIFO buffer control is available by clicking on the Advanced button on the Port Settings tab. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The receiver FIFO trigger denotes the number of characters received in the FIFO before the PC is interrupted to read the data. The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. Consider the following points when selecting FIFO settings: • You can select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead. • If transfer rates are high, you can lower receive FIFO settings to prevent overrun errors due to interrupt latency. • If data transfer sizes are small, selecting receive FIFO settings just above data sizes can reduce efficiency, so select lower settings. Note If you want your serial hardware ports to use the names COM1, COM2, COM3, or COM4, refer to the Common Questions section of Appendix D, Troubleshooting and Common Questions. Windows NT Installing the Microsoft PnP ISA Enabler Driver When you install an AT board, you must install the PnP ISA Enabler Driver. The AT serial hardware is Plug and Play. Windows NT 4.0 does not support Plug and Play. In order for Windows NT to detect and install the Plug and Play hardware, you must install the PnP ISA Enabler driver included on your Windows NT 4.0 CD-ROM. Complete the following steps to install the driver: 1. Locate the Pnpisa.inf file in the Drvlib\Pnpisa\X86 folder on the Windows NT 4.0 CD-ROM. 2. Right-click on the Pnpisa.inf file, then select Install on the menu that appears. 3. Restart the computer. Serial Hardware and Software for Windows 5-18 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Install the NI-Serial Software Install the NI-Serial software for Windows NT before you install the hardware. Make sure that you have already installed the PnP ISA Enabler driver as described in the previous section. 1. Log on as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel. 3. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs dialog box appears. 4. Click on the Install button. 5. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD and click on the Next button to proceed. The software installation wizard begins. The setup wizard guides you through the necessary steps to install the NI-Serial software. You can go back and change values where appropriate by clicking on the Back button. You can exit the setup where appropriate by clicking on the Cancel button. Note This installation backs up the Microsoft Windows NT serial driver serial.sys to serial.bak and then overwrites serial.sys. You can find serial.sys in the Windows NT.....\system32\drivers directory. The software installation is complete. Proceed to the next section, Install the Serial Hardware. Install the Serial Hardware This section describes how to install your AT serial board. If you are installing an AT-485, you might need to adjust the value of the bias resistors, depending on your application. For more information, refer to Appendix B, Serial Port Information. Note Electrostatic discharge can damage several components on your board. To avoid such damage in handling the board, touch the antistatic plastic package to a metal part of your computer chassis before removing the board from the package. Caution © National Instruments Corporation 5-19 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration Complete the following steps to install your AT serial board: 1. Turn off your computer. Keep the computer plugged in so that it remains grounded while you install the AT serial board. 2. Remove the top or side cover of the computer. 3. Remove the expansion slot cover on the back of the computer. 4. Insert the AT serial board into an unused slot with the serial connectors sticking out of the opening on the back panel. Make sure that you insert the board all the way into the slot. The board may seem to click firmly into place, even though it is only part of the way in. Figure 5-9 shows the installation of an AT serial board. 3 1 2 1 PC 2 AT Socket 3 AT Serial Card Figure 5-9. AT Serial Board Installation 5. Screw the mounting bracket of the AT serial board to the back panel rail of the computer. 6. Replace the cover, and turn on your computer. Serial Hardware and Software for Windows 5-20 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 7. Windows NT displays one or more New Hardware Found dialog boxes, depending on your serial hardware. In each dialog box, make sure that Windows Default Driver is selected, and click on OK. 8. The serial configuration software displays a PnP Port Configuration dialog box. Select a nonconflicting base I/O address and IRQ setting for the port/card, and click on OK. For more information on selecting resources for your post/card, refer to the Resource Settings section. 9. After you have selected the resources for all ports, choose to restart the computer when the system prompts you. The serial hardware installation is now complete. Verify the Installation Determine Which Physical Port Is Associated with COMx Select Start»Settings»Control Panel, and double-click on niports. A list showing installed National Instruments ports with their logical COMx names appears. If your interface is not on the list, refer to Appendix D, Troubleshooting and Common Questions. Select the COM port you want and click on the Settings button to display the General Port Settings dialog box for that port. This dialog box displays the serial number of the serial hardware and the physical port number starting at 1. On all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. When you have finished verifying the driver installation and physical port, proceed to the next section, Run the Diagnostic Test. Run the Diagnostic Test To verify and test the installation, run the diagnostic program that came with your NI-Serial software. The diagnostic program verifies that your serial driver is installed properly, that the configuration of your hardware does not conflict with anything else in your system, and that the serial driver can communicate with your hardware correctly. To run the test, select the diagnostics item under Start»Programs» National Instruments Serial. © National Instruments Corporation 5-21 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration If the diagnostic test completes with no failures, your serial hardware and software are installed properly. If it fails, refer to Appendix D, Troubleshooting and Common Questions, for troubleshooting instructions. After you verify the hardware and software installation, connect the cables. See Appendix A, Connector Descriptions, for information about cable connections. Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows NT Control Panel. You can use it to examine or modify the configuration of the serial port. Follow these steps to configure the serial port. 1. Select Start»Settings»Control Panel and double-click on the niports icon. A list of National Instruments ports appears, as shown in Figure 5-10. Figure 5-10. niports Configuration Utility 2. Select the port you are interested in. 3. Click on the Settings button to view or configure the port settings. Refer to the next section, General Port Settings, for more information. Serial Hardware and Software for Windows 5-22 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration 4. Click on the Resources button in the General Port Settings dialog box to view or configure the resources for the port. Refer to the Resource Settings section, later in this chapter, for more information. 5. Click on Delete to remove hardware information about the port from Windows NT. You should do this before you remove the serial interface from the system. General Port Settings This section describes the options you can set in the General Port Settings dialog box, shown in Figure 5-11. Figure 5-11. General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the COMx name of the port selected. Transceiver Mode The transceiver mode selection shows the transceiver mode in use, and applies only to AT-485 boards. Refer to Chapter 6, Using Your Serial Hardware, for more information about transceiver modes. If you use two-wire TXRDY mode, FIFOs must be enabled. © National Instruments Corporation 5-23 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration FIFO Enabled You can use the FIFO Enabled control to enable or disable the FIFO buffers on the serial port. FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. FIFO Buffer Size FIFO buffers are present on the 16550-compatible UARTs—one for the transmitter and one for the receiver. The receiver FIFO trigger denotes the number of characters received in the FIFO before the PC is interrupted to read the data. The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data. Consider the following points when selecting FIFO settings: • You can select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead. • If transfer rates are high, you can lower receive FIFO settings to reduce the number of interrupts and therefore prevent overrun errors due to interrupt latency. • If data transfer sizes are small, selecting receive FIFO settings just above data sizes can reduce efficiency, so select lower settings. Resources Click on the Resources button to display the resource configuration dialog box for the port. For more information on resource configuration, refer to the next section, Resource Settings. Resource Settings The following sections explain the resource configuration options for each serial interface. Serial Hardware and Software for Windows 5-24 ni.com Chapter 5 AT Serial Hardware Installation, Verification, and Configuration AT Boards (Shared IRQ) Figure 5-12 shows the PnP Port Configuration dialog box for an AT-232/4 with shared IRQ. The dialog boxes for other shared IRQ AT boards are similar. Figure 5-12. PnP Port Configuration Dialog Box for the AT-232/4 Each shared IRQ AT board requires multiple base I/O settings (one for each port) and one IRQ that is shared between the ports. Input/Output Range: Each Input/Output Range listing displays the I/O address ranges assigned to the corresponding port on the board. Interrupt Request: The IRQ shared between the ports on the board. The niports utility informs you if your resources conflict with the resources of any other interface in the system. It does not check for conflicts with ports on the same board. Make sure to assign base I/O addresses that do not conflict with those assigned to another port on the same board. Note © National Instruments Corporation 5-25 Serial Hardware and Software for Windows Chapter 5 AT Serial Hardware Installation, Verification, and Configuration If you are unable to change the base I/O address by double-clicking on the Input/Output Range control, select a different Basic Configuration in the Setting based on: control. Note AT Boards (Non-Shared IRQ) Each port on the board requires one I/O window and one IRQ. Input/Output Range: The base I/O address range assigned to the port. IRQ: The IRQ assigned to the port. Serial Hardware and Software for Windows 5-26 ni.com Using Your Serial Hardware 6 This chapter describes how to set the hardware transceiver control mode for your RS-485 interfaces and lists some general programming requirements. General Programming Requirements The NI-Serial software is fully integrated into the standard Windows communications software. NI serial ports are used like any other Windows communications (COM) port. Windows has standard communication functions for use within either Win16 or Win32 applications. When you develop your application, remember that you must use the standard Microsoft Windows serial communication functions. For information about Microsoft Windows serial communication functions, refer to the Win32 Software Development Kit and to the Win32 Overviews and Win32 Reference online help. If you have LabVIEW or Measurement Studio and want to use it with your serial hardware, refer to your LabVIEW or Measurement Studio documentation for information about serial I/O functions. Advanced Transceiver Control for the PCI/PXI/PCMCIA/AT-485 Boards Note Transceiver modes apply only to the PCI/PXI/PCMCIA/AT-485 boards. The RS-485 boards support four modes of hardware transceiver control. You can use hardware flow control to enable and disable your transmitters and receivers so that they function on different bus topologies. Table 6-1 lists the status of the transmitters and receivers under each of the transceiver control modes. © National Instruments Corporation 6-1 Serial Hardware and Software for Windows Chapter 6 Using Your Serial Hardware Table 6-1. Transceiver Control Modes Mode Note Transmitter Receiver Four-wire mode Always enabled Always enabled Two-wire mode: DTR with echo Enabled with DTR unasserted Always enabled Two-wire mode: DTR controlled Enabled with DTR unasserted Enabled with DTR asserted Two-wire mode: TXRDY auto control Enabled with TXRDY asserted Enabled with TXRDY unasserted Signal names with an overscore, such as DTR, indicate that the signal is active low. Four-Wire Mode Use the four-wire mode for most full-duplex systems. In this mode, the transmitter and receiver are always enabled. This mode is the default. Two-Wire Mode: DTR with Echo Use this mode in half-duplex systems where the DTR (Data Terminal Ready) line must control the transmitter. In the DTR-with-echo mode, the transmitter is tri-stated when the DTR signal of the UART (Universal Asynchronous Receiver/Transmitter) is asserted. To transmit, your application must first clear the DTR bit to enable the transmitter. After the data is fully transmitted, your application once again sets the DTR bit to disable the transmitter. Because the receiver is always enabled in this mode, you not only receive packets from other devices, you also receive the packets sent from your transmitter. Two-Wire Mode: DTR Controlled This mode is similar to the two-wire, DTR-with-echo mode. Use this mode in half-duplex systems where the DTR line must control the transmitter. Although this mode uses the same method as the DTR-with-echo mode to control the transmitter, the hardware automatically disables the receiver whenever the transmitter is enabled. Thus, you do not receive the packets sent from your transmitter. Serial Hardware and Software for Windows 6-2 ni.com Chapter 6 Using Your Serial Hardware Two-Wire Mode: TXRDY Auto Control In this mode, the serial hardware transparently enables the transmitter and receiver in a two-wire system. Use this mode to remove the burden of flow control from your application. By connecting the transmitter to the TXRDY (Transmit Ready) line, the hardware enables the transmitter for each byte to be transmitted. Also, the hardware disables the receiver whenever the transmitter is enabled, so you do not receive the packets sent from your transmitter. When you are communicating with a two-wire device, National Instruments recommends that you use the two-wire TXRDY auto control mode. Because this mode handles the transmitter/receiver enabling for a two-wire connection in your hardware, it reduces the software overhead required to perform this operation in your application program. Note For more information about serial communication in two- or four-wire modes, refer to the Serial Communication Issues section in Appendix B, Serial Port Information. Setting the Transceiver Control Mode Windows 2000 To set the transceiver control mode, use the Windows 2000 Device Manager. For instructions on how to use the Device Manager, refer to the chapter with installation instructions for your hardware platform. The mode you select in the Device Manager is automatically configured when you open a port on a serial interface. Windows Me/9x To set the transceiver control mode, use the Windows Me/9x Device Manager. For instructions on how to use the Device Manager, refer to chapter with installation instructions for your hardware platform. The mode you select in the Device Manager is automatically configured when you open a port on a serial interface. You can also set the hardware transceiver control mode from within a DOS application. For each port you want to control, write the control byte for the mode you want to select to the scratch register of the UART. Table 6-2 shows the control bytes for each mode. © National Instruments Corporation 6-3 Serial Hardware and Software for Windows Chapter 6 Using Your Serial Hardware Table 6-2. Transceiver Mode Control Bytes Transceiver Mode Control Byte Four-wire mode 0x00 Two-wire mode: DTR with echo 0x01 Two-wire mode: DTR controlled 0x02 Two-wire mode: TXRDY auto control 0x03 The scratch register is located at offset 7 from the base address of the port. For example, if COM2 were located at base address 0x3F8, and you want to set the board to two-wire mode with DTR control, you would write a 0x02 to address 0x3FF. The board would immediately switch to the two-wire mode with DTR control. Windows NT To set the transceiver control mode, use the serial configuration utility. For instructions on how to use the utility, refer to chapter with installation instructions for your hardware platform. The mode you select in the configuration utility is automatically configured when you open a port on a serial interface. Setting the Transceiver Mode with DeviceIoControl The NI-Serial software extends the DeviceIoControl Windows function for programming the transceiver control mode. To program the transceiver control mode using DeviceIoControl, complete the following steps: 1. Add the following lines to your source code: #include#define IOCTL_SERIAL_SET_TRANSCEIVER_MODE CTL_CODE(FILE_DEVICE_SERIAL_PORT,37, METHOD_BUFFERED,FILE_ANY_ACCESS) 2. Use the Win32 function DeviceIoControl, as follows: a. Use the defined control code value listed in step 1 to set the transceiver mode. b. Use the input buffer values (unsigned long) listed in Table 6-3 for programming different transceiver modes. Serial Hardware and Software for Windows 6-4 ni.com Chapter 6 Using Your Serial Hardware Table 6-3. DeviceIoControl Function Input Values Transceiver Mode DeviceIoControl Function Input Value Four-wire mode 128 Two-wire mode: DTR with echo 129 Two-wire mode: DTR controlled 130 Two-wire mode: TXRDY auto control 131 For example, to set TXRDY two-wire auto control mode, use the following code: Windows 2000 ULONG TranceiverMode = 131; ULONG dummy; DeviceIoControl(hDevice, IOCTL_SERIAL_SET_TRANSCEIVER_MODE,(PVOID) &TransceiverMode,sizeof(ULONG),NULL,0,&dummy,NULL); Windows NT/Me/9x ULONG TranceiverMode = 131; DeviceIoControl(hDevice, IOCTL_SERIAL_SET_TRANSCEIVER_MODE,(PVOID) &TransceiverMode,sizeof(ULONG),lpOutBuffer, nOutBufferSize,lpBytesReturned,lpOverlapped); © National Instruments Corporation 6-5 Serial Hardware and Software for Windows Connector Descriptions A Connecting Cables For the PCMCIA serial cards and two-port PCI, PXI, and AT serial boards, you can use the standard DB-9 connector found on most serial cables. To use the DB-9 connector with the four-port serial boards, you need the 10-position modular jack to DB-9 cable, which is available from National Instruments. You can also use a DB-25 connector with the four-port serial boards by ordering the 10-position modular jack to DB-25 converter cable from National Instruments. The eight-port serial boards include a pig tail cable adapter, providing eight standard DB-9 connectors. The 16-port boards include a break out box, providing 16 standard DB-9 connectors. To achieve the specified isolation voltage for four-port isolated PCI or AT serial boards, use only the 10-position modular jack to DB-9 cable included in your four-port isolated PCI or AT serial board kit. Note For more information about cable connectors, see the connector descriptions in this appendix. Connecting Two-Wire Devices The PCI-485, PCMCIA-485, RS-485 PXI (PXI-8421 and PXI-8423), and AT-485 boards are designed to work with either two- or four-wire devices. If you are using a two-wire device, refer to the device documentation for specific wiring instructions. In general, half-duplex networks use a single twisted pair of wires for communication in both directions, so you must connect both the transmitter and the receiver at each end of the same pair of wires. For example, to connect an RS-485 data acquisition device to a port on your board using half-duplex communication, you need a single twisted pair of wires. At the board, connect the TXD+ and RXD+ signals (pins 8 and 4 on a DB-9 connector, pins 5 and 20 on a DB-25 connector) together and to one wire. Connect the other end of this wire to both the TXD+ and RXD+ signals on the data acquisition device. Use the same method to connect the TXD– and RXD– signals (pins 9 and 5 on a DB-9 connector, pins 22 and 7 on a DB-25 connector) to the second wire. © National Instruments Corporation A-1 Serial Hardware and Software for Windows Appendix A Connector Descriptions For information about setting the transceiver mode for two-wire communication, refer to Chapter 6, Using Your Serial Hardware. For more information about duplex architectures, refer to Appendix B, Serial Port Information. DB-9 Connector Figure A-1 and Table A-1 give the pin locations and descriptions of the DB-9 connector, the 10-position modular jack to DB-9 cable, the cable adapter for the eight-port board, and the DB-9 connectors to the 16-port breakout box. PIN 5 PIN 9 PIN 6 PIN 1 Figure A-1. DB-9 Connector Pin Locations Table A-1. DB-9 Pin Descriptions DB-9 Pin 232 Signal 485 Signal 1 DCD* GND 2 RXD CTS+ (HSI+) 3 TXD RTS+ (HSO+) 4 DTR* RXD+ 5 GND RXD– 6 DSR* CTS– (HSI–) 7 RTS RTS– (HSO–) 8 CTS TXD+ 9 RI* TXD– * These signals are not supported by the isolated 232 boards or ports 9-16 of the RS-232 sixteen-port board. Serial Hardware and Software for Windows A-2 ni.com Appendix A Connector Descriptions Modular Jack Connector Figure A-2 and Table A-2 give the pin locations and descriptions of the 10-position modular jack. Pin 1 Pin 10 Figure A-2. 10-Position Modular Jack Pin Locations Table A-2. 10-Position Modular Jack Pin Descriptions 10-Position Modular Jack Pin 232 Signal 485 Signal 10 DCD* GND 9 RXD CTS+ (HSI+) 8 TXD RTS+ (HSO+) 7 DTR* RXD+ 6 GND RXD– 5 DSR* CTS– (HSI–) 4 RTS RTS– (HSO–) 3 CTS TXD+ 2 RI* TXD– 1 No Connect No Connect * These signals are not supported by the isolated 232 ports. © National Instruments Corporation A-3 Serial Hardware and Software for Windows Appendix A Connector Descriptions DB-25 Connector Figure A-3 and Table A-3 give the pin locations and descriptions of the DB-25 connector, which is on the optional 10-position modular jack to DB-25 cable. PIN 13 PIN 25 PIN 14 PIN 1 Figure A-3. DB-25 Connector Pin Locations Table A-3. DB-25 Pin Descriptions DB-25 Pin 232 Signal 485 Signal 2 TXD RTS+ (HSO+) 3 RXD CTS+ (HSI+) 4 RTS RTS– (HSO–) 5 CTS TXD+ 6 DSR* CTS– (HSI–) 7 GND RXD– 8 DCD* GND 20 DTR* RXD+ 22 RI* TXD– Pins not listed in this table are No Connect. * These signals are not supported by the isolated 232 ports. Serial Hardware and Software for Windows A-4 ni.com Appendix A Connector Descriptions Figure A-4 shows how to connect the cables when you install a four-port PCI serial board. 10-Position Modular Jack to DB-9 Cable 485 Terminator (485 Boards Only) Additional Serial Cable Serial Board 10-Position Modular Jack to DB-25 Cable Additional Serial Cable Figure A-4. Connecting the Cables to Your Four-Port PCI Serial Board © National Instruments Corporation A-5 Serial Hardware and Software for Windows Appendix A Connector Descriptions 68-Pin Connector Figure A-5 and Table A-4 give the pin locations and descriptions of the 68-pin connector. PIN 68 PIN 34 PIN 35 PIN 1 Figure A-5. 68-Pin Connector Pin Locations Serial Hardware and Software for Windows A-6 ni.com Appendix A Connector Descriptions Table A-4. 68-Pin Connector Pin Descriptions 68-Pin Connector Port 485 Signal 485 D-Sub 9 Connector 232 Signal 232 D-Sub 9 Connector 1 2 3 4 5 6 7 8 66 57 49 40 32 23 15 6 RXD– 5 DCD 1 68 59 51 42 34 25 17 8 CTS+ 2 RXD 2 65 56 48 39 31 22 14 5 RTS+ 3 TXD 3 64 55 47 38 30 21 13 4 RXD+ 4 DTR 4 60 60 43 43 26 26 9 9 GND 1 GND 5 63 54 46 37 29 20 12 3 CTS– 6 DSR 6 62 53 45 36 28 19 11 2 RTS– 7 RTS 7 61 52 44 35 27 18 10 1 TXD+ 8 CTS 8 67 58 50 41 33 24 16 7 TXD– 9 RI 9 © National Instruments Corporation A-7 Serial Hardware and Software for Windows Appendix A Connector Descriptions 100-Pin Connector Figure A-6 and Table A-5 give the pin locations and descriptions of the 100-pin connector. PIN 100 PIN 51 PIN 50 PIN 1 Figure A-6. 100-Pin Connector Pin Locations Serial Hardware and Software for Windows A-8 ni.com Appendix A Connector Descriptions Table A-5. 100-Pin Connector Pin Descriptions 100-Pin Connector Port 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 232 D-Sub 9 232 Signal Connector 2 46 6 42 10 38 14 34 — — — — — — — — DCD* 1 3 47 7 43 11 39 15 35 18 32 20 30 22 28 24 26 RXD 2 4 48 8 44 12 40 16 36 19 33 21 31 23 29 25 27 TXD 3 5 49 9 45 13 41 17 37 — — — — — — — — DTR* 4 1 1 1 1 50 50 50 50 51 51 51 51 100 100 100 100 GND 5 52 96 56 92 60 88 64 84 — — — — — — — — DSR* 6 53 97 57 93 61 89 65 85 68 82 70 80 72 78 74 76 RTS 7 54 98 58 94 62 90 66 86 69 83 71 81 73 79 75 77 CTS 8 55 99 59 95 63 91 67 87 — — — — — — — — RI* 9 * These signals are not supported on ports 9-16 of the 16-port PCI and PXI serial boards. © National Instruments Corporation A-9 Serial Hardware and Software for Windows B Serial Port Information This appendix describes the RS-232, RS-422, and RS-485 standards and explains some of the issues involved with these types of serial communication. Table A-1 lists the features of the RS-232, RS-422, and RS-485 standards. Table B-1. RS-232, RS-422, and RS-485 Features Feature RS-232 RS-422 RS-485 Type of transmission lines Single ended Differential Differential Maximum number of drivers 1 1 32 Maximum number of receivers 1 10 32 Maximum cable length 50 ft 4,000 ft 4,000 ft Maximum data rate 20 kbytes/s 10 Mbytes/s 10 Mbytes/s Maximum CMV ± 25 V ±7 V +12 to –7 V Driver output 5 to 25 V 2 to 6 V 1.5 to 6 V Driver load > 3 kΩ 100 Ω 60 Ω RS-232 As specified in the ANSI/EIA-232-D Standard, Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange, RS-232 standardizes serial communication between computers, and between computer terminals and modems. Most applications use the RS-232 standard to interface peripherals to personal computers. RS-232 uses transmission lines in which the state of each signal is represented by referencing the voltage level of a single line to ground. RS-232 was designed for serial communication up to © National Instruments Corporation B-1 Serial Hardware and Software for Windows Appendix B Serial Port Information distances of 50 ft and with data rates up to 20 kbytes/s. However, because of improvements in line drivers and cabling, you can usually increase the actual performance of the bus past the limitations on speed and distance recommended in the specification. RS-422 As specified in the EIA/RS-422-A Standard, Electrical Characteristics of Balanced Voltage Digital Interface Circuits, RS-422 defines a serial interface much like RS-232. However, RS-422 uses balanced (or differential) transmission lines. Balanced transmission lines use two transmission lines for each signal. The state of each signal is represented, not by a voltage level on one line referenced to ground as in RS-232, but rather by the relative voltage of the two lines to each other. For example, the TX signal is carried on two wires, wire A and wire B. A logical 1 is represented by the voltage on line A being greater than the voltage on line B. A logical 0 is represented by the voltage on line A being less than the voltage on line B. Differential voltage transmission creates a signal that is more immune to noise as well as voltage loss due to transmission line effects. Thus, you can use RS-422 for longer distances (up to 4,000 ft) and greater transmission speeds (up to 10 Mbytes/s) than RS-232. RS-485 As specified in the EIA-485 Standard, Standard for Electrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems, RS-485 expands on the RS-422 standard by increasing the number of devices you can use from 10 to 32 and by working with half-duplex bus architectures. Unlike the RS-422 standard, RS-485 addresses the issue of using multiple transmitters on the same line. RS-485 defines the electrical characteristics necessary to ensure adequate signal voltages under maximum load, short-circuit protection. RS-485 can also withstand multiple drivers driving conflicting signals at the same time. Serial Hardware and Software for Windows B-2 ni.com Appendix B Serial Port Information Serial Communication Issues This section explains some serial communication issues, including duplex architectures, termination methods, bias resistors, and types of connecting equipment. Duplex Architectures Duplex refers to the means of bandwidth usage in a serial system. The two common means of bi-directional serial communication are full duplex and half duplex. Half-duplex communication involves a transmitter and a receiver connected to each end of the same wire or pair of wires. Because the same transmission line both sends and receives data, devices cannot send data in both directions at the same time. First, one device transmits over the wire(s) to the receiver of the second device. When the first device finishes transmitting, both devices switch the connections from their transmitter to their receiver, or vice versa. The device that was receiving data can then transmit over the line. In full-duplex communication, the devices use a separate wire (or pair of wires) for simultaneous transmission in each direction. Thus, the devices do not switch between transmitting and receiving. In a differential serial bus (such as RS-422 or RS-485), a half-duplex system transmits and receives over the same twisted pair of wires. Thus, half-duplex communication is often referred to as two-wire communications. Likewise, full-duplex communication is often referred to as four-wire communications, because the full-duplex system uses a separate pair of wires for communication in each direction. Full Duplex A typical full-duplex multidrop bus architecture involves a master-slave protocol. Only one device, the master, can control access to the bus. All other devices are slaves. Slave devices must wait for the master to give them access to the bus. In a typical full-duplex system, one transmission line connects the bus master transmitter to all of the slave receivers. A second transmission line connects all of the slave transmitters to the bus master receiver. Because each transmission line has two separate wires, a full-duplex system is often referred to as a four-wire system. Figure B-1 shows a typical full-duplex system. © National Instruments Corporation B-3 Serial Hardware and Software for Windows Appendix B Serial Port Information Slave 1 MASTER Tx Slave 2 Tx Rx Slave n Tx Rx Rx Tx Rx Figure B-1. Typical Full-Duplex System Half Duplex A typical half-duplex multidrop bus architecture also involves a master-slave protocol. However, in a half-duplex system, all transmitters and receivers are connected to the same transmission line. A half-duplex system is often referred to as a two-wire system. Figure B-2 shows a typical half-duplex system. Slave 1 MASTER Tx Slave 2 Tx Rx Rx Slave n Tx Rx Tx Rx Figure B-2. Typical Half-Duplex System Serial Hardware and Software for Windows B-4 ni.com Appendix B Serial Port Information Termination Because each differential pair of wires is a transmission line, you must properly terminate the line to prevent reflections. A common method of terminating a two-wire multidrop RS-485 network is to install terminating resistors at each end of the multidrop network. If you daisy-chained multiple instruments together, you need a terminating resistor at only the first and last instruments. The terminating resistor should match the characteristic impedance of the transmission line (typically 100 to 120 Ω). You can order an optional DB-9 RS-485 termination connector that contains embedded terminating resistors for easy termination from National Instruments. For ordering information, contact National Instruments. Figure B-3 shows a multidrop network using terminating resistors. Slave 1 MASTER Tx Slave 2 Tx Rx Slave n Tx Rx Rx Tx 100 Ω 100 Ω Rx Figure B-3. Multidrop Network Using Terminating Resistors Bias Resistors A transmission line enters an indeterminate state if no nodes are transmitting on it. This indeterminate state can cause the receivers to receive invalid data bits from noise picked up on the cable. To prevent a line from receiving these data bits, force the transmission line into a known state. To do so, install two 620 Ω bias resistors at one node on the transmission line; doing so creates a voltage divider that forces the voltage between the differential pair to be greater than 200 mV, the threshold voltage for the receiver. You should install these resistors on only one node. Note Bias resistors are not available on the eight-port PCI-485 or eight-port PXI-8421. © National Instruments Corporation B-5 Serial Hardware and Software for Windows Appendix B Serial Port Information Figure B-4 shows a transmission line using bias resistors. +5 620 Bias Resistor A 100 Termination Resistor Rx B 620 Bias Resistor Figure B-4. Transmission Line Using Bias Resistors On the PCI RS-485 2- and 4-port serial cards, there are four user-configurable bias resistors in front of each connector. These resistors are socketed and pre-loaded with 620 Ω resistors. They are connected to the receive signals of each port to maintain a known state when the bus is idle. The connections are made as follows: • RXD+ and CTS– are pulled up to VCC • RXD– and CTS+ are pulled down to GND Rather than using two 620 Ω resistors at one node, you can increase the value of the resistors and put them at every node. For instance, if there are eight nodes in a system, you can use 4.7 kΩ resistors at each node to effectively achieve the same result. Serial Hardware and Software for Windows B-6 ni.com Appendix B Serial Port Information DTE vs. DCE In the RS-232 specification, DTE (Data Terminal Equipment) and DCE (Data Communications Equipment)1 refer to the types of equipment on either end of a serial connection. In general, DTE and DCE refer to computer equipment and modems, respectively. Because the RS-232 specification mainly involves connecting a DTE directly to a DCE and vice versa, the pinouts are defined so that cabling is simple. That is, a cable connected a computer to a modem by wiring pin 1 to pin 1, pin 2 to pin 2, and so on. This method is known as straight-through cabling. Figure B-5 shows straight-through cabling in a DTE-to-DCE interface. Pin 2 DTE Pin 3 Rx D Pin 2 Tx D Pin 3 Pin 2 DCE DCE Pin 3 Rx D Tx D Pin 2 Pin 3 DTE Figure B-5. Straight-Through Cabling in a DTE-to-DCE Interface Straight-through cabling is still the standard method to connect a modem to your PC. However, because many applications use serial communication to connect two or more DTEs without modems, the cabling becomes more complicated. If two DTEs are wired together using a straight-through cable, one transmitter is connected to the other transmitter, and one receiver is connected to the other receiver. In this setup, no transmissions can occur. Thus, these applications must use a cabling scheme that connects the transmitter on one device to the receiver on the other device and vice versa. This method is known as null-modem cabling, because it replaces the two modems that traditional RS-232 applications would require between the two DTEs. To communicate from one serial port to another, use a null-modem cable. Figure B-6 shows null-modem cabling in a DTE-to-DTE interface. Pin 2 DTE Rx D Pin 3 Tx D Rx D Pin 2 Tx D Pin 3 DTE Figure B-6. Null-Modem Cabling in a DTE-to-DTE Interface 1 In Revision D of the RS-232 specification, a DCE is a Data Circuit-Terminating Equipment. © National Instruments Corporation B-7 Serial Hardware and Software for Windows Uninstalling the Hardware and Software C This appendix describes how to uninstall your serial hardware and the NI-Serial software. To begin your uninstallation, see the section of this appendix containing instructions for your hardware platform and operating system: PCI Hardware Windows 2000 ...................................................................C-2 Windows Me/9x .................................................................C-3 Windows NT ......................................................................C-5 PXI Hardware Windows 2000 ...................................................................C-7 Windows Me/9x .................................................................C-8 Windows NT ......................................................................C-10 PCMCIA Hardware Windows 2000 ...................................................................C-12 Windows Me/9x .................................................................C-13 Windows NT ......................................................................C-15 AT Hardware Windows 2000 ...................................................................C-17 Windows Me/9x .................................................................C-18 Windows NT ......................................................................C-20 © National Instruments Corporation C-1 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software PCI Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Hardware tab and click on the Device Manager button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, right-click on the National Instruments interface that you want to uninstall, as shown in Figure C-1. Figure C-1. Selecting an Interface to Uninstall Serial Hardware and Software for Windows C-2 ni.com Appendix C Uninstalling the Hardware and Software 5. Choose the Uninstall... option. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select NI-Serial and click on the Change/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows 2000, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 2, PCI Serial Hardware Installation, Verification, and Configuration. Windows Me/9x Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Device Manager tab and click on the View devices by type button. 3. Double-click on the Multi-function adapters icon. © National Instruments Corporation C-3 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 4. From the Multi-function adapters list, select the National Instruments interface that you want to uninstall, as shown in Figure C-2. Figure C-2. Selecting an Interface to Uninstall 5. Click on the Remove button. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. Serial Hardware and Software for Windows C-4 ni.com Appendix C Uninstalling the Hardware and Software 3. Select the NI-Serial software you want to uninstall, and click on the Add/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows Me/9x, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 2, PCI Serial Hardware Installation, Verification, and Configuration. Windows NT Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Log in as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel and double-click on the niports icon. 3. From the Ports list, select the port of the board you want to uninstall, as shown in Figure C-3. Figure C-3. Selecting an Interface to Uninstall © National Instruments Corporation C-5 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 4. Click on the Delete button. 5. Repeat steps 3 and 4 until you have removed every PCI serial port that you want to uninstall. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select the NI-Serial software you want to uninstall, and click on the Add/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows NT, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 2, PCI Serial Hardware Installation, Verification, and Configuration. Serial Hardware and Software for Windows C-6 ni.com Appendix C Uninstalling the Hardware and Software PXI Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Hardware tab and click on the Device Manager button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, right-click on the National Instruments interface that you want to uninstall, as shown in Figure C-4. Figure C-4. Selecting an Interface to Uninstall © National Instruments Corporation C-7 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 5. Choose the Uninstall... option. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select NI-Serial and click on the Change/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows 2000, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 3, PXI Serial Hardware Installation, Verification, and Configuration. Windows Me/9x Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Device Manager tab and click on the View devices by type button. 3. Double-click on the Multi-function adapters icon. Serial Hardware and Software for Windows C-8 ni.com Appendix C 4. Uninstalling the Hardware and Software From the Multi-function adapters list, select the National Instruments interface that you want to uninstall, as shown in Figure C-5. Figure C-5. Selecting an Interface to Uninstall 5. Click on the Remove button. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. © National Instruments Corporation C-9 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 3. Select the NI-Serial software you want to uninstall, and click on the Add/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows Me/9x, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 3, PXI Serial Hardware Installation, Verification, and Configuration. Windows NT Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Log in as Administrator or as a user who has Administrator privileges. 2. Select Start»Settings»Control Panel and double-click on the niports icon. From the Ports list, select the port of the board you want to uninstall, as shown in Figure C-6. Figure C-6. Selecting an Interface to Uninstall Serial Hardware and Software for Windows C-10 ni.com Appendix C Uninstalling the Hardware and Software 3. Click on the Delete button. 4. Repeat steps 3 and 4 until you have removed every PXI serial port that you want to uninstall. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select the NI-Serial software you want to uninstall, and click on the Add/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows NT, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 3, PXI Serial Hardware Installation, Verification, and Configuration. © National Instruments Corporation C-11 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software PCMCIA Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Hardware tab and click on the Device Manager button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, right-click on the National Instruments interface that you want to uninstall, as shown in Figure C-7. Figure C-7. Selecting an Interface to Uninstall Serial Hardware and Software for Windows C-12 ni.com Appendix C Uninstalling the Hardware and Software 5. Choose the Uninstall... option. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select NI-Serial and click on the Change/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Remove the PCMCIA serial interface from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 4, PCMCIA Serial Hardware Installation, Verification, and Configuration. Windows Me/9x Uninstall the Hardware Before physically removing the serial hardware, you must remove the hardware information from the Windows Me/9x Device Manager. Follow these steps to uninstall the hardware: 1. Double-click on the System icon under Start»Settings»Control Panel. The System Properties dialog box appears. 2. Select the Device Manager tab. 3. Click on the View devices by type button. 4. Double-click on the Ports (COM & LPT) icon. © National Instruments Corporation C-13 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 5. Select the National Instruments port to remove from the list of ports, as shown in Figure C-8. Figure C-8. Selecting an Interface to Uninstall 6. Click on the Remove button. To remove ports on two-port and four-port PCMCIA cards from within the Device Manager, you must open the Multi-function adapters class, select the name of your interface, and click on the Remove button. Note 7. In the Confirm Device Removal dialog box, click on the OK button to remove this interface or click on Cancel to cancel your request. Serial Hardware and Software for Windows C-14 ni.com Appendix C Uninstalling the Hardware and Software Uninstall the Software Before uninstalling the software, remove all serial port information from the Windows Me/9x Device Manager, as described in the previous section. You do not need to shut down Windows Me/9x before uninstalling the software. Complete the following steps to remove the NI-Serial software: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs Properties dialog box appears. This dialog box lists the software available for removal. 3. Select the serial software you want to remove, and click on the Add/Remove button. The uninstall program runs and removes all folders, programs, VxDs, DLLs, and registry entries associated with the NI-Serial software. 4. Remove your PCMCIA card from your computer. To reinstall the hardware and software, refer to Chapter 4, PCMCIA Serial Hardware Installation, Verification, and Configuration. Windows NT Uninstall the Hardware Before physically removing the serial hardware, you must remove the hardware information from the Windows NT Control Panel. Follow these steps to uninstall the hardware: 1. Double-click on the niports icon under Start»Settings»Control Panel. 2. Select the port to remove from the list of ports as shown in Figure C-9. © National Instruments Corporation C-15 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software Figure C-9. Selecting an Interface to Uninstall 3. Note Click on the Delete button. For two-port and four-port PCMCIA cards, all ports on the interface are removed. Uninstall the Software Before uninstalling the software, remove all serial port information from the Windows NT Control Panel, as described in the previous section. You do not need to shut down Windows NT before uninstalling the software. Complete the following steps to remove the NI-Serial software: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs Properties dialog box appears. This dialog box lists the software available for removal. 3. Select the serial software you want to remove, and click on the Add/Remove button. The uninstall program runs and removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows NT, power off your computer, and remove your serial interfaces. To reinstall the hardware and software, refer to Chapter 4, PCMCIA Serial Hardware Installation, Verification, and Configuration. Serial Hardware and Software for Windows C-16 ni.com Appendix C Uninstalling the Hardware and Software AT Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system, you must remove the hardware information. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Hardware tab and click on the Device Manager button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, right-click on the National Instruments interface that you want to uninstall, as shown in Figure C-10. Figure C-10. Selecting an Interface to Uninstall © National Instruments Corporation C-17 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 5. Choose the Uninstall... option. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. Uninstall the Software Before you uninstall the NI-Serial software, you must remove the hardware information from your system, as described in the previous section. To uninstall the NI-Serial software, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon. The Add/Remove Programs dialog box appears. This dialog box lists the software that you can uninstall. 3. Select NI-Serial and click on the Change/Remove button. The uninstallation program removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows 2000, turn off your computer, and physically remove the serial interfaces from your system. The uninstallation program removes only items that the setup wizard installed. If you added anything to a directory that the setup wizard created, the uninstallation program does not delete that directory. You must remove any remaining components yourself. To reinstall the hardware and software, refer to Chapter 5, AT Serial Hardware Installation, Verification, and Configuration. Windows Me/9x Uninstall the Hardware Before physically removing the serial hardware, you must remove the hardware information from the Windows Me/9x Device Manager. Follow these steps to uninstall the hardware: 1. Double-click on the System icon under Start»Settings»Control Panel. The System Properties dialog box appears. 2. Select the Device Manager tab. 3. Click on the View devices by type button. 4. Double-click on the Ports (COM & LPT) icon. Serial Hardware and Software for Windows C-18 ni.com Appendix C 5. Uninstalling the Hardware and Software Select the National Instruments port to remove from the list of ports, as shown in Figure C-11. Figure C-11. Selecting an Interface to Uninstall 6. Click on the Remove button. To remove ports on shared IRQ AT boards from within the Device Manager, you must open the Multi-function adapters class, select the name of your interface, and click on the Remove button. Note 7. © National Instruments Corporation In the Confirm Device Removal dialog box, click on the OK button to remove this interface or click on Cancel to cancel your request. C-19 Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software Uninstall the Software Before uninstalling the software, remove all serial port information from the Windows Me/9x Device Manager, as described in the previous section. You do not need to shut down Windows Me/9x before uninstalling the software. Complete the following steps to remove the NI-Serial software: 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs Properties dialog box appears. This dialog box lists the software available for removal. 3. Select the serial software you want to remove, and click on the Add/Remove button. The uninstall program runs and removes all folders, programs, VxDs, DLLs, and registry entries associated with the NI-Serial software. 4. Shut down Windows Me/9x, turn off your computer, and physically remove the serial interfaces from your system. To reinstall the hardware and software, refer to Chapter 5, AT Serial Hardware Installation, Verification, and Configuration. Windows NT Uninstall the Hardware Before physically removing the serial hardware, you must remove the hardware information from the Windows NT Control Panel. Follow these steps to uninstall the hardware: 1. Double-click on the niports icon under Start»Settings»Control Panel. 2. Select the port to remove from the list of ports as shown in Figure C-12. Serial Hardware and Software for Windows C-20 ni.com Appendix C Uninstalling the Hardware and Software Figure C-12. Selecting an Interface to Uninstall 3. Note Click on the Delete button. For shared IRQ AT boards, all ports on the interface are removed. Uninstall the Software Before uninstalling the software, remove all serial port information from the Windows NT Control Panel, as described in the previous section. You do not need to shut down Windows NT before uninstalling the software. Complete the following steps to remove the NI-Serial software. 1. Select Start»Settings»Control Panel. 2. Double-click on the Add/Remove Programs icon in the Control Panel to launch the Add/Remove Programs applet. The Add/Remove Programs Properties dialog box appears. This dialog box lists the software available for removal. 3. Select the serial software you want to remove, and click on the Add/Remove button. The uninstall program runs and removes all folders, utilities, and registry entries associated with the NI-Serial software. 4. Shut down Windows NT, power off your computer, and remove your serial interfaces. To reinstall the hardware and software, refer to Chapter 5, AT Serial Hardware Installation, Verification, and Configuration. © National Instruments Corporation C-21 Serial Hardware and Software for Windows Troubleshooting and Common Questions D This appendix describes how to troubleshoot problems and answers some common questions. To find the information you are looking for, see the section of this appendix for your operating system: Windows 2000 Forcing Windows to Detect Your Hardware ......................D-2 Troubleshooting Diagnostic Messages ...............................D-3 Common Questions ............................................................D-4 Windows Me/9x Freeing an Interrupt Request Level ....................................D-6 Selecting Conflict-Free Resources .....................................D-7 Troubleshooting Diagnostic Messages ...............................D-9 Resolving Resource Conflicts with Legacy Boards ...........D-11 Forcing Windows to Detect Your Hardware ......................D-11 Common Questions ............................................................D-14 Windows NT Missing Serial Port in the niports List ................................D-18 Resolving Resource Conflicts ............................................D-19 Troubleshooting Diagnostic Messages ...............................D-20 Common Questions ............................................................D-22 © National Instruments Corporation D-1 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Windows 2000 Forcing Windows to Detect Your Hardware If Windows 2000 did not display the Found New Hardware Wizard, it did not detect your hardware. To solve this problem, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Select the Hardware tab and click on the Device Manager button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, right-click on the National Instruments interface that you want to uninstall, as shown in Figure D-1. (This example shows a PCI interface.) Figure D-1. Selecting an Interface to Uninstall Serial Hardware and Software for Windows D-2 ni.com Appendix D Troubleshooting and Common Questions 5. Choose the Uninstall... option. 6. In the Confirm Device Removal dialog box, click on the OK button to remove the hardware information, or click on the Cancel button to cancel your request. 7. Click on the Scan for Hardware Changes icon at the top of the Device Manager window. 8. Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard. Complete the wizard by clicking Next in each window and then Finish. Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility, along with solutions. No National Instruments Serial Port Found or Diagnostic Utility Does Not Show All Installed Ports If the No National Instruments serial port found error message appears or the diagnostic utility does not show all the ports you installed, follow all the steps in the Forcing Windows to Detect Your Hardware section above. Address Test Failed If the address test failed, Interrupt test cannot be performed error message appears, you might have an address conflict with legacy boards in your system. To solve this problem, change the base addresses assigned to your legacy boards and refer to the Resolving Resource Conflicts with Legacy Boards section. Interrupt Test Failed If the Interrupt test failed error message appears, you might have an IRQ conflict with legacy boards in your system. To solve this problem, change the IRQ level assigned to your legacy boards and refer to the next section, Resolving Resource Conflicts with Legacy Boards. © National Instruments Corporation D-3 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Resolving Resource Conflicts with Legacy Boards Resource conflicts typically occur if your system contains legacy boards that use resources that are not reserved properly. If a resource conflict exists, write down the resource that caused the conflict and refer to the Microsoft Windows 2000 user’s guide for instructions on how to use the Device Manager to reserve I/O and IRQ resources for legacy boards. Common Questions How can I determine which type of serial hardware I have installed? 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. 3. Double-click on the Ports (COM & LPT) icon to display a list of installed ports. How can I determine which version of the NI-Serial software I have installed? The Read Me file gives the version of the software. To open the file, select Start»Programs»National Instruments»NI-Serial»Read Me. What do I do if the diagnostic test fails with an error? Refer to the Troubleshooting Diagnostic Messages section earlier in this appendix. How can I determine which port is associated with COMx? To determine which physical port is associated with COMx, complete the following steps: 1. In the Device Manager, under Ports (COM & LPT), double-click on a serial port. 2. Note the Port 1, Port 2, etc. entries next to the COM numbers. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. How can I change the COM numbers of my National Instruments serial ports? 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Hardware tab and click on the Device Manager button. Serial Hardware and Software for Windows D-4 ni.com Appendix D Troubleshooting and Common Questions 3. Double-click on the Ports (COM & LPT) icon. 4. Double-click on the port you want to configure. 5. Click on the Port Settings tab. 6. Click on the Advanced button. The Advanced Settings dialog box should pop up. 7. Change the COM number in the COM Port Number field. (You can use a COM number that is designated as in use, as long as no hardware is actually using that COM number.) How do I remove information about serial boards from the Device Manager? Refer to the hardware uninstallation section for your hardware platform in Appendix C, Uninstalling the Hardware and Software. What is the maximum baud rate supported and how can I set it? The maximum baud rate supported is 460.8 Kbaud for RS-485 and 115.2 Kbaud for RS-232. To set the baud rate, use the SetCommState Win32 function and pass the actual value of the baud rate in the BaudRate field of the DCB structure. © National Instruments Corporation D-5 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Windows Me/9x Freeing an Interrupt Request Level To free an interrupt request level for your serial port, you must disable the device that is using the interrupt request level. To view the system-wide allocation of interrupt request resources and remove a device, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab. 3. Double-click on the Computer icon and click on the View Resources tab. 4. Click on the Interrupt Request (IRQ) button. Scan through the list of IRQ settings to determine which devices are using which interrupt request levels. 5. When you locate a device that you are not currently using, click on the Cancel button. 6. In the Device Manager tab, double-click on the icon for that device. 7. In the Device usage field, a checkmark appears to the left of the current configuration, usually Original Configuration (Current). Click on the checkbox to remove the checkmark. 8. Click on the Resources tab and make sure that Use automatic settings is unchecked. 9. Repeat steps 7 through 9 for each unused device. 10. Click on the OK button to save your changes. 11. Restart Windows Me/9x to assign resources to your serial port. Then, complete step 6 in the installation verification section of the chapter for your hardware platform. Serial Hardware and Software for Windows D-6 ni.com Appendix D Troubleshooting and Common Questions Selecting Conflict-Free Resources PCI and PXI Boards When the Device Manager indicates a conflict with another device, you can usually correct the problem by manually selecting conflict-free resources. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, double-click on the serial interface that you want to change. 5. Click on the Resources tab. 6. Uncheck the Use automatic settings checkbox and click on the Change Setting button. If the system does not allow you to change the settings, select the configuration that gives you a conflict-free base address and interrupt level from the Setting based on list box. 7. Click on the OK button to save your changes. AT Boards When the Device Manager indicates a conflict with another device, you can usually correct the problem by manually selecting conflict-free resources. To do so, complete the following steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the System icon. 3. Select the Device Manager tab, and click on the View devices by type button at the top of the page. 4. Double-click on the Ports (COM & LPT) icon. A list of installed ports appears. 5. Double-click on the name of the serial port you want to change, then click on the Resources tab. To change the resources of ports on shared IRQ AT boards from within the Device Manager, you must open the Multi-function adapters class and double-click on the name of your interface. Use the Resources page to change the resources. Any resource changes are automatically reflected to the child devices. Note © National Instruments Corporation D-7 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions 6. Uncheck the Use automatic settings checkbox and click on the Change Setting button. If the system does not allow you to change the settings, select the configuration that gives you a conflict-free base address and interrupt level from the Setting based on list box. 7. Click on the OK button to save your changes. PCMCIA Boards When the Device Manager indicates a conflict with another device, you can usually correct the problem by manually selecting conflict-free resources. To do so, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Multi-function adapters icon. 4. From the Multi-function adapters list, double-click on the serial interface that you want to change. 5. Click on the Resources tab. To change the resources of ports on two-port or four-port PCMCIA cards from within the Device Manager, you must open the Multi-function adapters class and double-click on the name of your interface. Use the Resources page to change the resources. Any resource changes are automatically reflected to the child devices. Note 6. Uncheck the Use automatic settings checkbox and click on the Change Setting button. If the system does not allow you to change the settings, select the configuration that gives you a conflict-free base address and interrupt level from the Setting based on list box. 7. Click on the OK button to save your changes. Serial Hardware and Software for Windows D-8 ni.com Appendix D Troubleshooting and Common Questions Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility, along with solutions. No National Instruments Serial Port Found If the No National Instruments serial port found error message appears, complete the following steps: 1. 2. Verify the hardware resources, as follows: a. In the Device Manager tab, under Multi-function adapters, double-click on a serial board. b. If a serial board is missing from the Multi-function adapters list, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware plaform. c. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. d. Check the hardware resources. If they are in conflict, refer to the previous section, Troubleshooting Diagnostic Messages. In some versions of Windows Me/9x, in the Device Manager, the Driver tab shows information about the installed driver. Make sure that the National Instruments serial driver is installed for the port. If the serial driver is a Microsoft driver, reinstall the NI-Serial software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. 3. © National Instruments Corporation Make sure that the National Instruments serial driver is installed, as follows: a. Locate the niserial.vxd file in the \Windows\system directory. b. If the niserial.vxd file is missing, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. D-9 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Diagnostic Utility Does Not Show All Installed Ports If the diagnostic utility does not show all the ports you installed, complete the following steps: 1. 2. Verify the hardware resources, as follows: a. In the Device Manager tab, under Multi-function adapters, double-click on a serial board. b. If a serial board is missing from the Multi-function adapters list, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. c. Click on the Resources tab. If the resources were assigned properly, the Resources tab shows which resources are assigned to your serial ports. d. Check the hardware resources. If they are in conflict, refer to the previous section, Troubleshooting Diagnostic Messages. In some versions of Windows Me/9x, in the Device Manager, the Driver tab shows information about the installed driver. Make sure that the National Instruments serial driver is installed for the port. If the serial driver is a Microsoft driver, reinstall the NI-Serial software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. 3. Physically make sure the correct number of boards/ports are installed. Address Test Failed If the address test failed, Interrupt test cannot be performed error message appears, you might have an address conflict with legacy boards in your system. To solve this problem, change the base addresses assigned to your legacy boards and refer to the Resolving Resource Conflicts with Legacy Boards section later in this appendix. Interrupt Test Failed If the Interrupt test failed error message appears, you might have an IRQ conflict with legacy boards in your system. To solve this problem, change the IRQ level assigned to your legacy boards and refer to the next section, Resolving Resource Conflicts with Legacy Boards. Serial Hardware and Software for Windows D-10 ni.com Appendix D Troubleshooting and Common Questions Resolving Resource Conflicts with Legacy Boards Resource conflicts typically occur if your system contains legacy boards that use resources that are not reserved properly. If a resource conflict exists, write down the resource that caused the conflict and refer to the Microsoft Windows Me/9x user’s guide for instructions on how to use the Device Manager to reserve I/O and IRQ resources for legacy boards. Forcing Windows to Detect Your Hardware PCI and PXI Hardware If Windows Me/9x did not display the New Hardware Found dialog box, it did not detect your hardware. To solve this problem, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Other Devices icon. Windows Me/9x lists the boards it does not recognize under Other Devices. 4. Double-click on the Multi-function adapters icon, where Windows Me/9x lists the parent devices of the PCI or PXI ports. © National Instruments Corporation D-11 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions 5. Select the interface that Windows Me/9x did not detect, as shown in Figure D-2. (This example shows a PCI interface.) Figure D-2. Ports List in Device Manager 6. Click on the Remove button. 7. Click on the OK button to remove the serial hardware information. 8. Repeat steps 5 through 7 until you have removed all serial interfaces. 9. Click on the Refresh button. 10. Windows Me/9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes. Your operating system (Windows Me/9x) may show the Windows Default Driver option. If so, make sure the Windows Default Driver is selected and click on the OK button. If the Windows Default Driver option is not shown, the installation continues automatically. Serial Hardware and Software for Windows D-12 ni.com Appendix D Troubleshooting and Common Questions AT and PCMCIA Hardware If Windows does not detect your serial hardware correctly, or you have been using your serial hardware with the default Windows Me/9x serial driver or an older version of the NI-Serial software, Windows Me/9x does not display the New Hardware Found dialog box. To fix this problem, follow these steps: 1. Select Start»Settings»Control Panel. 2. Double-click on the System icon. 3. Select the Device Manager tab. 4. Click on the View devices by type button. 5. Double-click on the Ports (COM & LPT) icon to display a list of all ports that Windows Me/9x recognizes. If you have already installed the hardware, double-click on Other Devices to display where Windows Me/9x lists the ports it does not recognize. 6. Select a National Instruments port name from the list of ports that corresponds to a serial port (for example, COM 5, COM 6, COM 7, or COM 8). Figure D-3 shows the Ports list in the Device Manager with a port selected. (This example shows an AT interface.) To remove ports on shared IRQ cards, you must open the Multifunction adapter class, select the name of the interface, and click on the Remove button. Note © National Instruments Corporation D-13 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Figure D-3. Ports List in Device Manager 7. Click on the Remove button, and click on OK to confirm the removal of the serial hardware information. Repeat steps 6 and 7 until all serial board entries are removed. Then, click on Refresh to force Windows Me/9x to detect the serial hardware and display the New Hardware Found dialog box. Common Questions How can I determine which type of serial hardware I have installed? 1. Select Start»Settings»Control Panel and double-click on the System icon. 2. Click on the Device Manager tab and click on the View devices by type button. 3. Double-click on the Ports (COM & LPT) icon to display a list of installed ports. Serial Hardware and Software for Windows D-14 ni.com Appendix D Troubleshooting and Common Questions How can I determine which version of the NI-Serial software I have installed? The Read Me file gives the version of the software. To open the file, select Start»Programs»National Instruments Serial»Read Me. What do I do if the diagnostic test fails with an error? Refer to the Troubleshooting Diagnostic Messages section earlier in this appendix. How can I determine which port is associated with COMx? To determine which physical port is associated with COMx, complete the following steps: 1. In the Device Manager tab, under Ports (COM & LPT), double-click on a serial port. 2. Click on the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. How can I change the COM numbers of my National Instruments serial ports? To name serial ports COM1, COM2, COM3, or COM4, change the base address of the port. To do so, refer to the Troubleshooting Diagnostic Messages section earlier in this appendix. When you change the base address, Windows Me/9x automatically converts it to the corresponding COM name listed in Table D-1. You do not need to change the IRQ setting for Windows Me/9x to change the name. Table D-1. Standard DOS-Based Addresses © National Instruments Corporation COM Port Base Address COM1 3f8 COM2 2f8 COM3 3e8 COM4 2e8 D-15 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions How do I change the resources assigned to the serial interface? ♦ PCI and PXI Boards The PCI and PXI serial boards are configured as devices belonging to the multi-function adapters class. The multi-function parent device is listed under the Multi-function adapters icon, and each child device is listed as a port under the Ports (COM & LPT) icon. To change the resources of serial ports, complete the following steps: ♦ 1. In the Device Manager tab, under Multi-function adapters, double-click on a serial interface. 2. Click on the Resources tab to change the resources. Your changes are automatically reflected to the child devices under Ports (COM & LPT). AT and PCMCIA Boards Because the shared IRQ boards are single physical devices that support multiple ports, they are registered as “multi-function adapters” in the Device Manager. Each port is a child device listed under Ports (COM & LPT). Windows Me/9x does not allow the resources of the multi-function child devices to be changed directly. To change the resources of ports on shared IRQ boards from within the Device Manager, you must open the Multi-function adapters class and double-click on the Multi-function Parent item that corresponds to your National Instruments serial interface. Use the Resources page to change the resources. Any resource changes are automatically reflected to the child devices. Figure D-4 shows the Multi-function adapters class in the Device Manager. (This example shows an AT interface.) Serial Hardware and Software for Windows D-16 ni.com Appendix D Troubleshooting and Common Questions Figure D-4. Multi-Function Adapter Class in the Device Manager How do I remove information about serial boards from the Device Manager? Refer to the hardware uninstallation section for your hardware platform and operating system in Appendix C, Uninstalling the Hardware and Software. What is the maximum baud rate supported and how can I set it? The maximum baud rate supported is 460.8 Kbaud for RS-485 and 115.2 Kbaud for RS-232. To set the baud rate, use the SetCommState Win32 function and pass the actual value of the baud rate in the BaudRate field of the DCB structure. How many interrupts are required for my serial interface? If you have a shared IRQ board or an isolated board, you need one interrupt per board. This is the hardware that currently ships with Windows Me/9x. If you have an older non-shared IRQ board, you need as many interrupts as there are ports on the board. © National Instruments Corporation D-17 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Windows NT Missing Serial Port in the niports List PCI and PXI Boards The serial configuration utility contains configuration information for serial hardware that is installed in your system. To start the configuration utility, select Start»Settings»Control Panel and double-click on the niports icon. If your PCI or PXI serial hardware is missing from this list, complete the following steps: 1. Physically make sure that your board is installed properly. 2. Make sure that the National Instruments serial driver is installed, as follows: a. Locate serial.sys in the WinNT\system32\drivers directory. b. Right-click on serial.sys and select Properties. c. Click on the Version tab. If the Company Name is Microsoft, the National Instruments serial driver is not installed properly. To solve this problem, reinstall the NI-Serial software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. AT Boards The serial configuration utility niports contains configuration information for serial hardware it is aware of that is installed in your system. To start the configuration utility, select Start»Settings»Control Panel, and double-click on the niports icon. If your AT serial board is missing from the list, follow these steps: 1. Make sure the hardware is installed. 2. Make sure you have installed the Microsoft PnP ISA Enabler driver. niports cannot recognize the AT boards without the Microsoft PnP ISA Enabler driver. For more information, refer to the Installing the Microsoft PnP ISA Enabler Driver section of Chapter 5, AT Serial Hardware Installation, Verification, and Configuration. Serial Hardware and Software for Windows D-18 ni.com Appendix D Troubleshooting and Common Questions PCMCIA Boards The serial configuration utility niports contains configuration information for serial hardware it is aware of that is installed in your system. To start the configuration utility, select Start»Settings»Control Panel, and double-click on the niports icon. If serial ports are missing from this list, make sure you selected resources for your PCMCIA card as described in the Select Resources for the PCMCIA Card section in Chapter 4, PCMCIA Serial Hardware Installation, Verification, and Configuration. Resolving Resource Conflicts Resource conflicts occur when your system contains hardware that is configured to use the same resources as your serial interface. The serial driver detects some resource conflicts when it loads. When the driver detects conflicts as it loads, it records an error message describing the conflict. To resolve a resource conflict, complete the following steps: 1. Select Start»Programs»Administrative Tools»Event Viewer to run the Event Viewer and determine which resource is in conflict. 2. Change the resources of the device that caused the conflict. To help you select conflict-free resources, you can use the Windows NT Diagnostics utility. This utility displays a list of the I/O port addresses, interrupt levels, and DMA channels that your system is currently using. You can assign resources that are not listed by this utility to your device. To run the Windows NT Diagnostics utility, select Start»Programs»Administrative Tools»Windows NT Diagnostics. © National Instruments Corporation D-19 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility, along with solutions. No National Instruments Serial Port Found If the No National Instruments serial port found error message appears, complete the following steps: 1. Verify the hardware resources, as follows: a. Select Start»Settings»Control Panel and double-click on the niports icon. b. In the Ports list, select a port and click on the Settings button. If the serial port is missing from the Ports list, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. 2. c. In the General Port Settings dialog box, click on the Resources button to view the resources for the port. d. Check the hardware resources. If they are in conflict, refer to the previous section, Resolving Resource Conflicts. Make sure that the National Instruments serial driver is installed, as follows: a. Locate the serial.sys file in the WinNT\system32\drivers directory. b. If the serial.sys file is missing, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. c. Right-click on the serial.sys file and select Properties. d. Click on the Version tab. If the Company Name is Microsoft, the National Instruments serial driver is not installed properly. To solve this problem, reinstall the NI-Serial software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. Serial Hardware and Software for Windows D-20 ni.com Appendix D Troubleshooting and Common Questions Diagnostic Utility Does Not Show All Installed Ports If the diagnostic utility does not show all the ports you installed, complete the following steps: 1. Verify the hardware resources, as follows: a. Select Start»Settings»Control Panel and double-click on the niports icon. b. In the Ports list, select a port and click on the Settings button. If the serial port is missing from the Ports list, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. 2. 3. c. In the General Port Settings dialog box, click on the Resources button to view the resources for the port. d. Check the hardware resources. If they are in conflict, refer to the previous section, Resolving Resource Conflicts. Make sure that the National Instruments serial driver is installed, as follows: a. Locate the serial.sys file in the WinNT\system32\drivers directory. b. If the serial.sys file is missing, reinstall the hardware and software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. c. Right-click on the serial.sys file and select Properties. d. Click on the Version tab. If the Company Name is Microsoft, the National Instruments serial driver is not installed properly. To solve this problem, reinstall the NI-Serial software. For instructions on how to do so, refer to the installation and verification chapter for your hardware platform. Physically make sure the correct number of boards and ports are installed. Address Test Failed If the address test failed, Interrupt test cannot be performed error message appears, you might have an address conflict with legacy boards in your system. To solve this problem, change the base addresses assigned to your legacy boards. For instructions on how to do so, refer to your legacy board documentation. © National Instruments Corporation D-21 Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Interrupt Test Failed If the Interrupt test failed error message appears, you might have an IRQ conflict with legacy boards in your system. To solve this problem, change the IRQ level assigned to your legacy boards. For instructions on how to do so, refer to your legacy board documentation. Common Questions How can I determine which type of serial hardware I have installed? To display a list of installed ports, select Start»Settings»Control Panel and double-click on the niports icon. How can I determine which version of the NI-Serial software I have installed? The Read Me file gives the version of the software. To open the file, select Start»Programs»National Instruments Serial»Read Me. What do I do if the diagnostic test fails with an error? Refer to the Troubleshooting Diagnostic Messages section earlier in this appendix. How can I determine which port is associated with COMx? To determine which physical port is associated with COMx, complete the following steps: 1. Select Start»Settings»Control Panel and double-click on the niports icon. A list of installed National Instruments ports with their logical COMx names appears. If your interface is not on this list, refer to the Missing Serial Port in the niports List section earlier in this appendix. 2. Select a COM port and click on the Settings button. The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1. For all serial hardware, PORT1 refers to the top port, PORT2 refers to the next port down, and so on. How can I change the COM numbers of my National Instruments serial ports? Refer to the general port settings section in the installation and verification chapter for your hardware platform. Serial Hardware and Software for Windows D-22 ni.com Appendix D Troubleshooting and Common Questions What is the maximum baud rate supported and how can I set it? The maximum baud rate supported is 460.8 Kbaud for RS-485 and 115.2 Kbaud for RS-232. To set the baud rate, use the SetCommState Win32 function and pass the actual value of the baud rate in the BaudRate field of the DCB structure. How many interrupts are required for my serial interface? If you have a shared IRQ card or an isolated serial card, you need one interrupt per card. This is the hardware that currently ships with Windows NT. If you have an older, non-shared IRQ card, you need as many interrupts as there are ports on the card. © National Instruments Corporation D-23 Serial Hardware and Software for Windows E Specifications This appendix describes the characteristics of the serial hardware, the NI-Serial software, along with the recommended operating conditions. PCI Serial Hardware Two-Port Boards Dimensions............................................. 10.67 by 14.22 cm (4.2 by 5.6 in.) I/O connector.......................................... DB-9 Power requirement (from PCI channel) PCI-485/2 +5 VDC.................................... 350 mA typical 750 mA maximum PCI-232/2 +5 VDC.................................... 50 mA typical 100 mA maximum ±12 VDC.................................. 20 mA typical 200 mA maximum Isolated Two-Port Boards Dimensions............................................. 10.67 by 14.22 cm (4.2 by 5.6 in.) I/O connector.......................................... DB-9 Isolation voltage From port to port............................. 2000 Vrms/60s From any port to host computer...... 2000 Vrms/60s © National Instruments Corporation E-1 Serial Hardware and Software for Windows Appendix E Specifications for PCI Serial Hardware Power requirement (from PCI channel) PCI-485/2 +5 VDC ....................................800 mA typical 1300 mA maximum PCI-232/2 +5 VDC ....................................400 mA typical 650 mA maximum Four-Port Boards Dimensions .............................................10.67 by 17.27 cm (4.2 by 6.8 in.) I/O connector1 .........................................10-position modular jack Power requirement (from PCI channel) PCI-485/4 +5 VDC ....................................700 mA typical 1300 mA maximum PCI-232/4 +5 VDC ....................................70 mA typical 150 mA maximum ±12 VDC ..................................40 mA typical 400 mA maximum Isolated Four-Port Boards Dimensions .............................................10.67 by 17.27 cm (4.2 by 6.8 in.) I/O connector1 .........................................10-position modular jack Isolation voltage From port to port .............................2000 Vrms/60s From any port to host computer ......2000 Vrms/60s 1 The four-port PCI serial boards require a cable to convert the 10-position modular jack to either DB-9 or DB-25 connectors. Serial Hardware and Software for Windows E-2 ni.com Appendix E Specifications for PCI Serial Hardware Power requirement (from PCI channel) PCI-485/4 +5 VDC.................................... 1000 mA typical 1500 mA maximum PCI-232/4 +5 VDC.................................... 500 mA typical 750 mA maximum Eight-Port Boards Dimensions............................................. 10.67 by14.48 cm (4.2 by 5.7 in.) I/O connector1 ........................................ 68-position, SCSI type connector Power requirement (from PCI channel) PCI-485/8 +5 VDC.................................... 1100 mA typical 2000 mA maximum PCI-232/8 +5 VDC.................................... 100 mA typical 180 mA maximum ±12 VDC.................................. 80 mA typical 800 mA maximum 16-Port Boards Dimensions............................................. 10.67 by17.52 cm (4.2 by 6.9 in.) I/O connector2 ........................................ 100-position, SCSI type connector Power requirement (from PCI channel) PCI-232/16 +5 VDC.................................... 250 mA typical 500 mA maximum 1 2 The eight-port PCI serial boards require a cable, which is included in your kit, to convert the 68-position connector to eight DB-9 connectors. The 16-port PCI serial boards require a breakout box, which is included in your kit, to separate the 100-position connector to 16 DB-9 connectors. © National Instruments Corporation E-3 Serial Hardware and Software for Windows Appendix E Specifications for PCI Serial Hardware Environmental Characteristics Operating environment Component temperature ..................0 to 70 °C Relative humidity ............................10 to 90%, noncondensing Storage environment Temperature.....................................–40 to 120 °C Relative humidity ............................5 to 90%, noncondensing EMI .........................................................FCC Class A Verified Software Characteristics Maximum serial transfer rate1 RS-485.............................................460,800 bps RS-232.............................................115,200 bps 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities. Serial Hardware and Software for Windows E-4 ni.com Appendix E Specifications for PXI Serial Hardware PXI Serial Hardware Two-Port Boards Dimensions............................................. 100 by 160 mm (3.94 by 6.30 in.) I/O connector.......................................... DB-9 Power requirement (from PXI channel) PXI-8420/2 +5 VDC.................................... 100 mA typical 150 mA maximum ±12 VDC.................................. 20 mA typical 200 mA maximum PXI-8421/2 +5 VDC.................................... 350 mA typical 750 mA maximum PXI-8422/2 +5 VDC.................................... 400 mA typical 650 mA maximum PXI-8423/2 +5 VDC.................................... 800 mA typical 1300 mA maximum Four-Port Boards Dimensions............................................. 100 by 160 mm (3.94 by 6.30 in.) I/O connector1 ........................................ 10-position modular jack Power requirement (from PXI channel) PXI-8420/4 +5 VDC.................................... 125 mA typical 200 mA maximum ±12 VDC.................................. 40 mA typical 400 mA maximum 1 The four-port PXI serial boards require a cable to convert the 10-position modular jack to either DB-9 or DB-25 connectors. © National Instruments Corporation E-5 Serial Hardware and Software for Windows Appendix E Specifications for PXI Serial Hardware PXI-8421/4 +5 VDC ....................................350 mA typical 750 mA maximum PXI-8422/4 +5 VDC ....................................500 mA typical 750 mA maximum PXI-8423/4 +5 VDC ....................................1000 mA typical 1500 mA maximum Eight-Port Boards Dimensions .............................................100 by 160 mm (3.94 by 6.30 in.) I/O connector1 .........................................68-position, SCSI type connector Power requirement (from PXI channel) PXI-8420/8 +5 VDC ....................................150 mA typical 250 mA maximum ±12 VDC ..................................80 mA typical 800 mA maximum PXI-8421/8 +5 VDC ....................................1100 mA typical 2000 mA maximum 16-Port Boards Dimensions .............................................100 by 160 mm (3.94 by 6.30 in.) I/O connector2 .........................................100-position, SCSI type connector Power requirement (from PXI channel) PXI-8420/16 +5 VDC ....................................500 mA typical 750 mA maximum 1 2 The eight-port PXI serial boards require cables, which are included in your kit, to convert the 68-position connector to eight DB-9 connectors. The 16-port PCI serial boards require a breakout box, which is included in your kit, to separate the 100-position connector to 16 DB-9 connectors. Serial Hardware and Software for Windows E-6 ni.com Appendix E Specifications for PXI Serial Hardware Environmental Characteristics Operating environment Component temperature.................. 0 to 70 °C Relative humidity............................ 10 to 90%, noncondensing Storage environment Temperature .................................... –40 to 120 °C Relative humidity............................ 5 to 90%, noncondensing EMI ........................................................ FCC Class A Verified Software Characteristics Maximum serial transfer rate1 RS-485 ............................................ 460,800 bps RS-232 ............................................ 115,200 bps 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities. © National Instruments Corporation E-7 Serial Hardware and Software for Windows Appendix E Specifications for PCMCIA Serial Hardware PCMCIA Serial Hardware Hardware Specifications Dimensions .............................................85.6 by 54.0 by 0.5 cm (3.370 by 2.126 by 0.197 in.) I/O connector ..........................................Special cable with DB-9 Dsub connector and converter for PC card Power requirement (from PCMCIA expansion slot) PCMCIA-232 ..................................+5 VDC 40 mA typical PCMCIA-485 ..................................+5 VDC 100 mA typical PCMCIA-232/2 ...............................+5 VDC 60 mA typical PCMCIA-485/2 ...............................+5 VDC 100 mA typical PCMCIA-232/4 ...............................+5 VDC 60 mA typical Operating environment Component temperature ..................0 to 70° C Relative humidity ............................10 to 90%, noncondensing Storage environment Temperature .....................................–40 to 120° C Relative humidity ............................5 to 90%, noncondensing EMI .........................................................FCC Class A verified Software Specifications Maximum serial transfer rate1 ................115,200 bps 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities. Serial Hardware and Software for Windows E-8 ni.com Appendix E Specifications for AT Serial Hardware AT Serial Hardware Hardware Characteristics Two-Port AT Serial Boards (Nonisolated) Dimensions............................................. 10.67 by 16.51 cm (4.2 by 6.5 in.) I/O connector.......................................... DB-9 Power requirement (from PC AT I/O channel) AT-485/2.......................................... +5 VDC 390 mA typical 510 mA maximum AT-232/2.......................................... +5 VDC 260 mA typical 340 mA maximum AT-485/2 (Shared IRQ) ................... +5 VDC 140 mA typical 180 mA maximum AT-232/2 (Shared IRQ) ................... +5 VDC 70 mA typical 100 mA maximum Two-Port AT Serial Boards (Isolated) Dimensions............................................. 10.67 by 18.70 cm (4.2 by 7.4 in.) I/O connector.......................................... DB-9 Isolation Voltage From Port to Port ............................ 3000 Vrms/60s From Any Port to Host Computer ........................................ 2000 Vrms/60s Power Requirement (from PC AT I/O channel) © National Instruments Corporation AT-485/2 Isolated ............................ +5 VDC 220 mA typical 260 mA maximum AT-232/2 Isolated ............................ +5 VDC 160 mA typical 200 mA maximum E-9 Serial Hardware and Software for Windows Appendix E Specifications for AT Serial Hardware Four-Port AT Serial Boards (Nonisolated) Dimensions .............................................10.67 by 16.51 cm (4.2 by 6.5 in.) I/O connector1 .........................................10-position modular jack Power Requirement (from PC AT I/O channel) AT-485/4 ..........................................+5 VDC 160 mA typical 200 mA maximum AT-232/4 ..........................................+5 VDC 110 mA typical 150 mA maximum AT-485/4 (Shared IRQ)....................+5 VDC 160 mA typical 200 mA maximum AT-232/4 (Shared IRQ)....................+5 VDC 110 mA typical 150 mA maximum Four-Port AT Serial Boards (Isolated) Dimensions .............................................10.67 by 25.40 cm (4.2 by 10.0 in.) I/O connector2 .........................................10-position modular jack Isolation voltage From Port to Port .............................3000 Vrms/60s From Any Port to Host Computer .........................................2000 Vrms/60s Power Requirement (from PC AT I/O channel) 1 2 AT-485/4 Isolated.............................+5 VDC 300 mA typical 360 mA maximum AT-232/4 Isolated.............................+5 VDC 280 mA typical 320 mA maximum The four-port AT serial board requires a cable to convert the 10-position modular jack to either DB-9 or DB-25 connectors. The four-port isolated AT serial board requires cables, which are included in your kit, to convert the 10-position modular jack to a DB-9 connector. Use only the type of cables provided in your kit. Serial Hardware and Software for Windows E-10 ni.com Appendix E Specifications for AT Serial Hardware Environmental Characteristics Operating environment Component temperature.................. 0 to 70° C Relative humidity............................ 10 to 90%, noncondensing Storage environment Temperature .................................... –40 to 120° C Relative humidity............................ 5 to 90%, noncondensing EMI AT serial .......................................... FCC Class B verified AT serial isolated............................. FCC Class A verified Software Characteristics Maximum serial transfer rate ................. 115,200 bps1 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities. © National Instruments Corporation E-11 Serial Hardware and Software for Windows Technical Support Resources F Web Support National Instruments Web support is your first stop for help in solving installation, configuration, and application problems and questions. Online problem-solving and diagnostic resources include frequently asked questions, knowledge bases, product-specific troubleshooting wizards, manuals, drivers, software updates, and more. Web support is available through the Technical Support section of ni.com NI Developer Zone The NI Developer Zone at ni.com/zone is the essential resource for building measurement and automation systems. At the NI Developer Zone, you can easily access the latest example programs, system configurators, tutorials, technical news, as well as a community of developers ready to share their own techniques. Customer Education National Instruments provides a number of alternatives to satisfy your training needs, from self-paced tutorials, videos, and interactive CDs to instructor-led hands-on courses at locations around the world. Visit the Customer Education section of ni.com for online course schedules, syllabi, training centers, and class registration. System Integration If you have time constraints, limited in-house technical resources, or other dilemmas, you may prefer to employ consulting or system integration services. You can rely on the expertise available through our worldwide network of Alliance Program members. To find out more about our Alliance system integration solutions, visit the System Integration section of ni.com © National Instruments Corporation F-1 Serial Hardware and Software for Windows Appendix F Technical Support Resources Worldwide Support National Instruments has offices located around the world to help address your support needs. You can access our branch office Web sites from the Worldwide Offices section of ni.com. Branch office Web sites provide up-to-date contact information, support phone numbers, e-mail addresses, and current events. If you have searched the technical support resources on our Web site and still cannot find the answers you need, contact your local office or National Instruments corporate. Phone numbers for our worldwide offices are listed at the front of this manual. Serial Hardware and Software for Windows F-2 ni.com Glossary Prefix Meaning Value p- pico- 10 –12 n- nano- 10 –9 µ- micro- 10 – 6 m- milli- 10 –3 k- kilo- 10 3 M- mega- 10 6 G- giga- 10 9 t- tera- 10 12 ° degrees Ω ohms % percent A amperes ANSI American National Standards Institute b bits B bytes baud bits per second bps bits per second C Celsius COM Computer Output Microform; used in reference to a communication port CTS clear to send DB-xx subminiature D connector, where xx is the number of pins © National Instruments Corporation G-1 Serial Hardware and Software for Windows Glossary DCD data carrier detect DCE data communications equipment or data circuit-terminating equipment DLL dynamic link library DMA direct memory access DSR data set ready DTE data terminal equipment DTR data terminal ready—the overscore denotes that the signal is active low duplex the means of bandwidth usage in a serial system EIA Electronic Industries Association EMI electromagnetic interference FCC Federal Communications Commission FIFO First-In-First-Out ft feet GND ground HSI handshake input HSO handshake output Hz Hertz IEEE Institute of Electrical and Electronic Engineers in. inches I/O input/output IRQ interrupt request ISA Industry Standard Architecture Kbaud kilobits per second m meters Serial Hardware and Software for Windows G-2 ni.com Glossary MB megabytes of memory PC personal computer PCI Peripheral Components Interconnect RAM random-access memory RI ring indicator RTS request to send RX receive RXD receive data—the overscore denotes that the signal is active low s seconds SCSI Small Computer Systems Interface TX transmit TXD transmit data—the overscore denotes that the signal is active low TXRDY transmit ready—the overscore denotes that the signal is active low UART Universal Asynchronous Receiver/Transmitter V volts VDC volts direct current VXI VME eXtensions for Instrumentation Win16 describes a 16-bit Windows application Win32 describes a 32-bit Windows application © National Instruments Corporation G-3 Serial Hardware and Software for Windows Index Numerics PCMCIA, Windows 2000, 4-7 PXI, Windows 2000, 3-8 PCI, Windows 2000, 2-8 PCMCIA, Windows 2000, 4-7 PXI, Windows 2000, 3-7 transceiver mode AT, Windows 2000, 5-8 PCI, Windows 2000, 2-8 PCMCIA, Windows 2000, 4-7 PXI, Windows 2000, 3-8 using FIFO buffers, 2-9, 2-17, 3-8, 3-16, 4-8, 4-15, 5-9, 5-18 advanced transceiver control, 6-1 four-wire mode, 6-2 setting transceiver control mode, 6-3 transceiver mode control bytes (table), 6-4 transceiver mode control modes (table), 6-2 two-wire mode: DTR controlled, 6-2 two-wire mode: DTR with Echo, 6-2 two-wire mode: TXRDY auto control, 6-3 AT serial board installation (figure), 5-3, 5-11, 5-20 100-pin connector, A-8 pin descriptions (table), A-9 pin locations (figure), A-8 10-position modular jack, A-3 pin descriptions (table), A-3 pin locations (figure), A-3 16-port boards specifications PCI, E-3 PXI, E-6 68-pin connector, A-6 pin descriptions (table), A-7 pin locations (figure), A-6 A advanced port settings AT, Windows Me/9x, 5-17 dialog box (figure) AT, Windows Me/9x, 5-17 PCI, Windows Me/9x, 2-17 PCMCIA, Windows Me/9x, 4-15 PXI, Windows Me/9x, 3-16 PCI, Windows Me/9x, 2-17 PCMCIA, Windows Me/9x, 4-15 PXI, Windows Me/9x, 3-16 transceiver mode AT, Windows Me/9x, 5-17 PCI, Windows Me/9x, 2-17 PCMCIA, Windows Me/9x, 4-15 PXI, Windows Me/9x, 3-16 advanced settings AT, Windows 2000, 5-8 dialog box (figure) AT, Windows 2000, 5-8 PCI, Windows 2000, 2-8 © National Instruments Corporation B bias resistors, B-5 using in transmission line (figure), B-6 C cable connection, A-1 changing communication port settings Windows 2000, 2-5, 3-5, 4-5, 5-5 Windows NT, 2-21, 3-20, 4-19, 5-22 changing resources assigned to serial interface, D-16 COM port number, 2-22, 3-21, 4-20, 5-23 I-1 Serial Hardware and Software for Windows Index communication port settings viewing or changing Windows 2000, 2-5, 3-5, 4-5, 5-5 Windows Me/9x, 2-14, 3-13, 4-13, 5-14 Windows NT, 2-21, 3-20, 4-19, 5-22 ComponentWorks, 1-9 ComponentWorks++, 1-9 configuration resource settings, 5-24 conflict-free resources, D-7 selecting, D-7 connecting cables, A-1 connecting cables to four-port PCI serial board (figure), A-5 connecting two-wire devices, A-1 conventions, xiii customer education, F-1 common questions changing resources assigned to serial interface, D-16 determining number of interrupts required for a serial interface, D-17, D-23 determining port associated with COMx Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 determining type of serial hardware installed Windows 2000, D-4 Windows Me/9x, D-14 Windows NT, D-22 determining version of NI-Serial software installed Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 diagnostic test failure Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 maximum supported baud rate Windows 2000, D-5 Windows Me/9x, D-17 Windows NT, D-23 naming National Instruments serial ports Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 removing information about serial boards from Device Manager Windows 2000, D-5 Windows Me/9x, D-17 Windows 2000, D-4 Windows Me/9x, D-14 Windows NT, D-22 Serial Hardware and Software for Windows D DB-25 connector, A-4 pin descriptions (table), A-4 pin locations (figure), A-4 DB-9 100-pin connector pin descriptions (figure), A-8 100-pin connector pin descriptions (table), A-9 68-pin connector pin descriptions (figure), A-6 68-pin connector pin descriptions (table), A-7 connector, A-2 pin descriptions (table), A-2 pin locations (figure), A-2 DCE vs. DTE, B-7 default restoration, 2-9, 2-18, 3-9, 3-17, 4-8, 4-16, 5-9 determining number of interrupts required for a serial interface, D-23 I-2 ni.com Index no National Instruments serial port found Windows 2000, D-3 Windows Me/9x, D-9 Windows NT, D-20 troubleshooting Windows 2000, D-3 Windows Me/9x, D-9 Windows NT, D-20 diagnostic test failure Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 DOS-based addresses (table), D-15 DTE vs. DCE, B-7 DTE-to-DCE interface, B-7 straight-through cabling in (figure), B-7 DTE-to-DTE interface, B-7 null-modem cabling in (figure), B-7 duplex architectures, B-3 full duplex, B-3 half duplex, B-4 determining port associated with COMx Windows 2000, D-4 Windows Me/9x, 4-12, 5-14, D-15 Windows NT, 4-18, 5-21, D-22 determining type of serial hardware installed Windows 2000, D-4 Windows Me/9x, D-14 Windows NT, D-22 determining version of NI-Serial software installed Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 development tools for saving time, 1-8 Device Manager for AT serial board ports (figure), 5-4, 5-13 Device Manager for PCI serial board ports (figure), 2-4, 2-13 Device Manager for PCMCIA serial card ports (figure), 4-4, 4-11 Device Manager for PXI serial board ports (figure), 3-4, 3-12 Device Manager ports list (figure), D-12, D-14 DeviceloControl, 6-4 input values (table), 6-5 setting transceiver mode with, 6-4 diagnostic messages address test failed Windows 2000, D-3 Windows Me/9x, D-10 Windows NT, D-21 diagnostic utility does not show all installed ports Windows Me/9x, D-10 Windows NT, D-21 interrupt test failed Windows 2000, D-3 Windows Me/9x, D-10 Windows NT, D-22 © National Instruments Corporation E eight-port boards specifications PCI, E-3 PXI, E-6 environmental characteristics AT, E-11 PCI, E-4 PXI, E-7 F FIFO buffer size, 2-23, 3-22, 4-21, 5-24 FIFO buffers, 2-9, 2-17, 3-8, 3-16, 4-8, 4-15, 5-9, 5-18 FIFO enabled, 2-22, 3-21, 4-21, 5-24 FIFO buffer size, 2-23, 3-22, 4-21, 5-24 I-3 Serial Hardware and Software for Windows Index H forcing Windows to detect hardware Windows 2000, D-2 Windows Me/9x, D-11 four-port boards connecting cables to (figure), A-5 isolated four-port boards AT, E-10 PCI, E-2 specifications AT, E-10 PCI, E-2 PXI, E-5 four-wire mode, 6-2 freeing an interrupt request level, D-6 full duplex, B-3 full-duplex system (figure), B-4 half duplex, B-4 half-duplex system (figure), B-4 hardware installation AT, Windows 2000, 5-2 AT, Windows Me/9x, 5-10 AT, Windows NT, 5-19 getting started, 1-2 PCI, Windows 2000, 2-2 PCI, Windows Me/9x, 2-10 PCI, Windows NT, 2-18 PCMCIA, Windows 2000, 4-2 PCMCIA, Windows Me/9x, 4-9 PCMCIA, Windows NT, 4-17 PXI, Windows 2000, 3-2 PXI, Windows Me/9x, 3-10 PXI, Windows NT, 3-17 verification AT, Windows 2000, 5-4 AT, Windows Me/9x, 5-12 AT, Windows NT, 5-21 PCI, Windows 2000, 2-4 PCI, Windows Me/9x, 2-12 PCI, Windows NT, 2-20 PCMCIA, Windows 2000, 4-3 PCMCIA, Windows Me/9x, 4-10 PCMCIA, Windows NT, 4-18 PXI, Windows 2000, 3-4 PXI, Windows Me/9x, 3-11 PXI, Windows NT, 3-19 hardware specifications AT, E-9 PCI, E-1 PCMCIA, E-8 PXI, E-5 G general port settings AT, 5-23 dialog box (figure), 5-23 transceiver mode, 5-23 COM port number, 2-22, 3-21, 4-20, 5-23 FIFO enabled, 2-22, 3-21, 4-21, 5-24 PCI, 2-22 dialog box (figure), 2-22 transceiver mode, 2-22 PCMCIA, 4-20 dialog box (figure), 4-20 transceiver mode, 4-20 PXI, 3-21 dialog box (figure), 3-21 transceiver mode, 3-21 resources, 2-23, 3-22, 4-21, 5-24 general programming requirements, 6-1 getting started, 1-2 glossary, G-1 Serial Hardware and Software for Windows I-4 ni.com Index I verification AT, 5-1 PCI, 2-1 PCMCIA, 4-1 PXI, 3-1 verifying hardware installation, 4-10 AT, Windows 2000, 5-4 AT, Windows Me/9x, 5-12 AT, Windows NT, 5-21 PCI, Windows 2000, 2-4 PCI, Windows Me/9x, 2-12 PCI, Windows NT, 2-20 PCMCIA, Windows 2000, 4-3 PCMCIA, Windows Me/9x, 4-12 PCMCIA, Windows NT, 4-18 PXI, Windows 2000, 3-4 PXI, Windows Me/9x, 3-11 PXI, Windows NT, 3-19 verifying hardware resources AT, Windows Me/9x, 5-13 PCMCIA, Windows Me/9x, 4-12 installing the PnP ISA Enabler Driver, 5-18 interrupt request level, D-6 freeing, D-6 introduction, 1-1 isolated four-port boards AT, E-10 PCI, E-2 isolated two-port boards AT, E-9 PCI, E-1 installation AT serial board installation (figure), 5-3, 5-11, 5-20 determining port associated with COMx Windows Me/9x, 4-12, 5-14 Windows NT, 4-18, 5-21 getting started, 1-2 installing the PnP ISA Enabler Driver, 5-18 PCI serial board installation (figure), 2-3, 2-11, 2-19 PCMCIA serial card installation (figure), 4-3, 4-10, 4-17 PXI serial board installation (figure), 3-3, 3-10, 3-18 running the diagnostic test AT, Windows Me/9x, 5-14 AT, Windows NT, 5-21 PCMCIA, Windows Me/9x, 4-12 PCMCIA, Windows NT, 4-18 selecting resources for the PCMCIA card, 4-18 serial hardware AT, Windows 2000, 5-2 AT, Windows Me/9x, 5-10 AT, Windows NT, 5-19 PCI, Windows 2000, 2-2 PCI, Windows Me/9x, 2-10 PCI, Windows NT, 2-18 PCMCIA, Windows 2000, 4-2 PCMCIA, Windows Me/9x, 4-9 PCMCIA, Windows NT, 4-17 PXI, Windows 2000, 3-2 PXI, Windows Me/9x, 3-10 PXI, Windows NT, 3-17 serial software Windows 2000, 2-1, 3-1, 4-1, 5-1 Windows Me/9x, 2-9, 3-9, 4-8, 5-9 Windows NT, 2-18, 3-17, 4-16, 5-19 © National Instruments Corporation L LabVIEW, 1-8 LabWindows/CVI, 1-9 legacy boards resolving resource conflicts with Windows 2000, D-4 Windows Me/9x, D-11 I-5 Serial Hardware and Software for Windows Index M PCMCIA, 1-6 PXI, 1-4 overview of serial software, 1-8 maximum supported baud rate Windows 2000, D-5 Windows Me/9x, D-17 Windows NT, D-23 Measurement Studio, 1-8 missing serial port in the niports list, D-18 modular jack connector, A-3 pin descriptions (table), A-3 pin locations (figure), A-3 multidrop network using terminating resistors (figure), B-5 multi-function adapter class in the Device Manager (figure), D-17 P PCI serial board installation (figure), 2-3, 2-11, 2-19 PCMCIA card installation (figure), 4-3, 4-10, 4-17 pin descriptions 100-pin connector pin descriptions (figure), A-8 100-pin connector pin descriptions (table), A-9 68-pin connector pin descriptions (figure), A-6 68-pin connector pin descriptions (table), A-7 DB-25 connector, A-4 connector pin descriptions (table), A-4 connector pin locations (figure), A-4 DB-9 100-pin description (table), A-9 68-pin description (table), A-7 connector, A-2 connector pin descriptions (table), A-2 connector pin locations (figure), A-2 PnP port configuration dialog box for the AT-232/4 (figure), 5-25 port settings tab AT, Windows 2000, 5-7 AT, Windows Me/9x, 5-16 options advanced port settings AT, Windows Me/9x, 5-17 PCI, Windows Me/9x, 2-17 N naming National Instruments serial ports standard DOS-based addresses (table), D-15 Windows 2000, D-4 Windows Me/9x, D-15 Windows NT, D-22 National Instruments Web support, F-1 NI Developer Zone, F-1 niports configuration utility (figure) AT, 5-22 PCI, 2-21 PCMCIA, 4-19 PXI, 3-20 null-modem cabling in a DTE-to-DTE interface (figure), B-7 number of interrupts required for a serial interface, D-17 O optional equipment, 1-3 overview of serial hardware AT, 1-6 PCI, 1-3 Serial Hardware and Software for Windows I-6 ni.com Index AT boards (shared IRQ), 5-25 PCMCIA-232, PCMCIA-485, PCMCIA-232/4, 4-22 PCMCIA-232/2, PCMCIA-485/2, 4-23 restoring defaults, 2-9, 2-18, 3-9, 3-17, 4-8, 4-16, 5-9 RS-232 standard, B-1 features (table), B-1 RS-422 standard, B-2 features (table), B-1 RS-485 standard, B-2 features (table), B-1 running the diagnostic test AT, Windows Me/9x, 5-14 AT, Windows NT, 5-21 PCMCIA, Windows Me/9x, 4-12 PCMCIA, Windows NT, 4-18 PCMCIA, Windows Me/9x, 4-15 PXI, Windows Me/9x, 3-16 advanced settings AT, Windows 2000, 5-8 PCI, Windows 2000, 2-8 PCMCIA, Windows 2000, 4-7 PXI, Windows 2000, 3-7 PCI, Windows 2000, 2-6 PCI, Windows Me/9x, 2-16 PCMCIA, Windows 2000, 4-6 PCMCIA, Windows Me/9x, 4-14 PXI, Windows 2000, 3-6 PXI, Windows Me/9x, 3-15 restore defaults button, 2-9, 2-18, 3-9, 3-17, 4-8, 4-16, 5-9 ports list in Device Manager (figure), D-12, D-14 PXI serial board installation (figure), 3-3, 3-10, 3-18 PXI serial board names and descriptions (table), 1-5 S selecting an interface to uninstall (figure) AT, Windows 2000, C-17 AT, Windows Me/9x, C-19 AT, Windows NT, C-21 PCI, Windows 2000, C-2, D-2 PCI, Windows Me/9x, C-4 PCI, Windows NT, C-5 PCMCIA, Windows 2000, C-12 PCMCIA, Windows Me/9x, C-14 PCMCIA, Windows NT, C-16 PXI, Windows 2000, C-7 PXI, Windows Me/9x, C-9 PXI, Windows NT, C-10 selecting conflict-free resources, D-7 selecting resources for the PCMCIA card, 4-18 serial communication issues, B-3 bias resistors, B-5 DTE vs. DCE, B-7 duplex architectures, B-3 termination, B-5 R related documentation, xiv removing information about serial boards from Device Manager Windows 2000, D-5 Windows Me/9x, D-17 resolving resource conflicts, D-19 resolving resource conflicts with legacy boards Windows 2000, D-4 Windows Me/9x, D-11 resource configuration dialog box for the PCMCIA-485 (figure), 4-22 resource configuration dialog box for the PCMCIA-485/2 (figure), 4-23 resource settings, 4-22, 5-24 AT boards (non-shared IRQ), 5-26 © National Instruments Corporation I-7 Serial Hardware and Software for Windows Index PCI, Windows 2000, C-2 PCI, Windows Me/9x, C-3 PCI, Windows NT, C-5 PCMCIA, Windows 2000, C-12 PCMCIA, Windows Me/9x, C-13 PCMCIA, Windows NT, C-15 PXI, Windows 2000, C-7 PXI, Windows Me/9x, C-8 PXI, Windows NT, C-10 using, 6-1 serial port information, B-1 serial software installation Windows 2000, 2-1, 3-1, 4-1, 5-1 Windows Me/9x, 2-9, 3-9, 4-8, 5-9 Windows NT, 2-18, 3-17, 4-16, 5-19 overview, 1-8 uninstalling Windows 2000, C-3, C-8, C-13, C-18 Windows Me/9x, C-4, C-9, C-15, C-20 Windows NT, C-6, C-11, C-16, C-21 setting transceiver control mode, 6-3 setting with DeviceloControl, 6-4 software characteristics AT, E-11 PCI, E-4 PCMCIA, E-8 PXI, E-7 software installation getting started, 1-2 Windows 2000, 2-1, 3-1, 4-1, 5-1 Windows Me/9x, 2-9, 3-9, 4-8, 5-9 Windows NT, 2-18, 3-17, 4-16, 5-19 specifications, E-1 16-port boards PCI, E-3 PXI, E-6 AT, E-9 serial hardware forcing Windows to detect Windows 2000, D-2 Windows Me/9x, D-11 general programming requirements, 6-1 installation AT, Windows 2000, 5-2 AT, Windows Me/9x, 5-10 AT, Windows NT, 5-19 PCI, Windows 2000, 2-2 PCI, Windows Me/9x, 2-10 PCI, Windows NT, 2-18 PCMCIA, Windows 2000, 4-2 PCMCIA, Windows Me/9x, 4-9 PCMCIA, Windows NT, 4-17 PXI, Windows 2000, 3-2 PXI, Windows Me/9x, 3-10 PXI, Windows NT, 3-17 overview AT, 1-6 PCI, 1-3 PCMCIA, 1-6 PXI, 1-4 selecting an interface to uninstall (figure) AT, Windows 2000, C-17 AT, Windows Me/9x, C-19 AT, Windows NT, C-21 PCI, Windows 2000, C-2, D-2 PCI, Windows Me/9x, C-4 PCI, Windows NT, C-5 PCMCIA, Windows 2000, C-12 PCMCIA, Windows Me/9x, C-14 PCMCIA, Windows NT, C-16 PXI, Windows 2000, C-7 PXI, Windows Me/9x, C-9 PXI, Windows NT, C-10 uninstalling AT, Windows 2000, C-17 AT, Windows Me/9x, C-18 AT, Windows NT, C-20 Serial Hardware and Software for Windows I-8 ni.com Index time-saving development tools, 1-8 transceiver control modes (table), 6-2 transceiver mode AT, Windows 2000, 5-8 AT, Windows Me/9x, 5-17 AT, Windows NT, 5-23 PCI, Windows 2000, 2-8 PCI, Windows Me/9x, 2-17 PCI, Windows NT, 2-22 PCMCIA, Windows 2000, 4-7 PCMCIA, Windows Me/9x, 4-15 PCMCIA, Windows NT, 4-20 PXI, Windows 2000, 3-8 PXI, Windows Me/9x, 3-16 PXI, Windows NT, 3-21 setting with DeviceloControl, 6-4 transceiver mode control bytes (table), 6-4 transmission line using bias resistors (figure), B-6 troubleshooting, D-1 diagnostic messages Windows 2000, D-3 Windows Me/9x, D-9 Windows NT, D-20 forcing Windows to detect your hardware Windows 2000, D-2 Windows Me/9x, D-11 freeing an interrupt request level, D-6 missing serial port in the niports list, D-18 resolving resource conflicts, D-19 resolving resource conflicts with legacy boards Windows 2000, D-4 Windows Me/9x, D-11 selecting conflict-free resources, D-7 two-port boards specifications AT, E-9 isolated two-port boards AT, E-9 PCI, E-1 eight-port boards PCI, E-3 PXI, E-6 environmental characteristics AT, E-11 PCI, E-4 PXI, E-7 four-port boards AT, E-10 PCI, E-2 PXI, E-5 isolated four-port boards AT, E-10 PCI, E-2 isolated two-port boards AT, E-9 PCI, E-1 PCI, E-1 PCMCIA, E-8 PXI, E-5 software characteristics AT, E-11 PCI, E-4 PCMCIA, E-8 PXI, E-7 two-port boards AT, E-9 PCI, E-1 PXI, E-5 standard DOS-based addresses (table), D-15 straight-through cabling in a DTE-to-DCE interface (figure), B-7 system integration, by National Instruments, F-1 T technical support resources, F-1 termination, B-5 multidrop network using terminating resistors (figure), B-5 © National Instruments Corporation I-9 Serial Hardware and Software for Windows Index V PCI, E-1 PXI, E-5 two-wire devices, A-1 connecting, A-1 typical full-duplex system (figure), B-4 typical half-duplex system (figure), B-4 verifying hardware installation AT, Windows 2000, 5-4 AT, Windows Me/9x, 5-12 AT, Windows NT, 5-21 PCI, Windows 2000, 2-4 PCI, Windows Me/9x, 2-12 PCI, Windows NT, 2-20 PCMCIA, Windows 2000, 4-3 PCMCIA, Windows Me/9x, 4-10 PCMCIA, Windows NT, 4-18 PXI, Windows 2000, 3-4 PXI, Windows Me/9x, 3-11 PXI, Windows NT, 3-19 verifying hardware resources AT, Windows Me/9x, 5-13 PCMCIA, Windows Me/9x, 4-12 viewing or changing communication port settings Windows 2000, 2-5, 3-5, 4-5, 5-5 Windows Me/9x, 2-14, 3-13, 4-13, 5-14 Windows NT, 2-21, 3-20, 4-19, 5-22 U uninstalling serial hardware AT Windows Me/9x, C-18 AT, Windows 2000, C-17 AT, Windows NT, C-20 PCI, Windows 2000, C-2 PCI, Windows Me/9x, C-3 PCI, Windows NT, C-5 PCMCIA, Windows 2000, C-12 PCMCIA, Windows Me/9x, C-13 PCMCIA, Windows NT, C-15 PXI, Windows 2000, C-7 PXI, Windows Me/9x, C-8 PXI, Windows NT, C-10 uninstalling serial software Windows 2000, C-3, C-8, C-13, C-18 Windows Me/9x, C-4, C-9, C-15, C-20 Windows NT, C-6, C-11, C-16, C-21 using FIFO buffers, 2-9, 2-17, 3-8, 3-16, 4-8, 4-15, 5-9, 5-18 using serial hardware, 6-1 using this manual, 1-1 Serial Hardware and Software for Windows W Web support from National Instruments, F-1 Win32 Overviews and Win32 Reference, 6-1 Win32 Software Development Kit, 6-1 worldwide technical support, F-2 I-10 ni.com
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