Sick RFI3411503S04 RFID (Radio frequency interrogator) User Manual Users manual

Sick AG RFID (Radio frequency interrogator) Users manual

Users manual

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Document ID1068616
Application IDn2IdfzId+ijsz3bP+kdYXQ==
Document DescriptionUsers manual
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Date Submitted2009-02-16 00:00:00
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Creation Date2009-01-30 12:17:08
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Document TitleMicrosoft Word - RFI341-1503S04 - Annex No 5 _Functional description_
Document CreatorAdobe Acrobat 9.0.0
Document Author: Andreas Morsbach

Annex No.5
Page 1 of 46
Functional description
RFI341-1503S04
Preliminary
OPERATING INSTRUCTIONS
RFI341-1503
Radio Frequency Interrogator
8012640/2008-03-10 © SICK AG • Division Auto Ident • Germany • All rights reserved
Software Versions
RFI341 Radio Frequency Interrogator
Software Versions
Software
Version
DSP Firmware
V1.2.10
ARM7 Firmware
V0.24
Copyright
Copyright © 2007
SICK AG Waldkirch
Auto Ident, Reute Plant
Nimburger Strasse 11
79276 Reute
Germany
Trademarks
WindowsTM is a registered trademark or trademark of the Microsoft Corporation in
the USA and other countries.
Latest Manual Version
For the latest version of this manual (PDF), see www.sick.com.
SICK AG − Division Auto Ident - Germany - All rights reserved
8012640/2008-03-10
Content
RFI341 Radio Frequency Interrogator
Contents
SOFTWARE VERSIONS
ABOUT THIS DOCUMENT
1.1 Purpose
1.2 Target Application Group
1.3 Symbols used
SAFETY INFORMATION
2.1 Authorized Personnel
2.1.1 Assembly and maintenance
2.1.2 Electrical Connection and Replacement
2.1.3 Start-up, Operation and Configuration
2.1.4 Intended Use
2.2 General Safety Instructions and Protective Measures
2.3 Quick Stop and Restart
2.4 Environmental Conditions
2.4.1 Power Requirements
2.4.2 Disposal after Final Placing out of Operation
PRODUCT DESCRIPTION
10
3.1 Design
3.1.1 Scope of Delivery
3.1.2 Variants
3.1.3 System Requirements
3.1.4 Product Features and Functions (Overview)
3.1.5 Details (Basic version)
3.1.6 Details (M12 connectivity version)
3.1.7 Details (Profibus stainless steel version)
Inside View (main board, profibus CMF gateway, Profibus connection)
3.1.7 Details (FCC Version)
3.1.8 View of Details (Splitter)
3.1.9 View of Details (Mutliplexer)
10
10
11
11
12
13
14
15
15
16
18
18
3.2 Functional Description of the device
19
3.3 Operating Elements and Indicators
3.3.1 Operating Elements
3.3.2 Function of the LEDs
20
20
21
4. ASSEMBLY
22
4.1 Overview about the Assembly Steps
4.2 Preparation for Installation
4.2.1 Component required
4.2.2 Accessories
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22
22
22
22
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4.2.3 Selecting the Installation Location
4.2.4 Brackets
RFI341 Radio Frequency Interrogator
22
23
5. ELECTRICAL INSTALLATION
24
5.1 Overview of the Installation Steps
24
5.2 Electrical Connections (basic version)
24
5.3 Electrical Connections (M12 connectivity version)
25
5.4 Preparations for Electrical Installation
5.4.1 Requirements for the RS-232 HOST interface
5.4.2 Requirements for the Profi-Bus interface
5.4.3 Main Power supply
5.4.4 Connect the RS-232 interface
5.4.5 Connecting the “Input 1” Switching Input
5.4.6 Connecting the Switching Output
5.4.7 Ethernet
25
25
25
26
26
27
28
28
5.5 Performing Electrical Installation (Basic-Version)
5.5.1 Overview of the Connection Procedure
29
29
5.6 Performing Electrical Installation (Profibus-Version)
5.6.1 Overview of the Connection Procedure
5.6.2 Connect the earth ground
5.6.3 Connect the RS232 Interface
5.6.4 Connect the Profi-Bus Interface
29
29
29
30
30
OPERATION
31
6.1 Overview of the Start-up Steps
31
6.2 Factory Default Settings
31
6.3 Configuration (Parameterisation)
6.3.1 Antenna Output Power
6.3.2 RS232 Data Interface
6.3.3 Oscillator Switch off delay
6.3.4 Read after Write Verify
6.3.5 HF Reset for Inventory Commands
32
32
32
33
33
33
6.4 ISO/IEC 15693 settings
34
7. MAINTANANCE
35
7.1 Maintenance
35
7.2 Disposal
35
8. TROUBLESHOOTING
36
8.1 Installation errors
36
8.2 Electrical Connection Errors
36
8.3 Parameterisation Errors
36
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RFI341 Radio Frequency Interrogator
9. TECHNICAL DATA
37
9.1 RFI341-1503
37
9.2 Dimensional Drawing
38
10.
APPENDIX
39
10.1 Accessories
39
10.2 Glossary, Standard Basics, and Abbreviations
39
10.3 ISO/IEC 15693 – ISO/IEC 18000-3 Mode 1 Basics
41
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About this Document
RFI341 Radio Frequency Interrogator
1. About this Document
1.1 Purpose
This document provides information on placing the RFI341 Interrogator.
This document contains information about:
• Mounting and electrical installation
• Start-up
• Use and configuration
• Maintenance
• Special applications and practices
1.2 Target Application Group
The target groups for this user guide are:
• Operating electricians
• Technicians and engineers
1.3 Symbols used
Some of the information in this document is especially marked so that it can
be accessed quickly.
Warning!
Warnings are provided to prevent injury to operating personnel or serious
damage to the RFID Interrogator.
→ Always read warnings carefully and observe them at all times.
Note
Explanation
Recommendation
Notes provide information on special features or characteristics.
Explanations provide background information on technical aspects.
Recommendations provide advice on how to carry out a task more effectively
This symbol refers to additional technical documentation.
SICK AG − Division Auto Ident - Germany - All rights reserved
8012640/2008-03-10
Safety information
RFI341 Radio Frequency Interrogator
2. Safety Information
2.1 Authorized Personnel
•
For the RFI341 to function correctly and safely, it must be installed
and operated by sufficiently qualified personnel.
•
The end user must be supplied with the operating instructions.
•
The end user must be provided with expert training and is advised to
read the operating instructions.
•
The following qualifications are required for the various tasks
involved.
2.1.1 Assembly and maintenance
•
Practical basic technical training
•
Knowledge of the standard guidelines relating to safety in the
workplace
2.1.2 Electrical Connection and Replacement
Practical training in electrical technology
•
Knowledge of the standard safety guidelines relating to electrical
technology
•
Knowledge regarding the operation of the devices in the relevant
application (e.g. conveyor belt)
2.1.3 Start-up, Operation and Configuration
Knowledge regarding the operation of the devices in the relevant application
(e.g. conveyor belt)
•
Knowledge of the software and hardware environment of the relevant
Application
•
Basic understanding of data transfer methods
•
Basic understanding of RFID technology
SICK AG − Division Auto Ident - Germany - All rights reserved
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Safety information
RFI341 Radio Frequency Interrogator
2.1.4 Intended Use
The RFI341 is designed to detect and decode 13.56 MHz, ISO 15693
compliant RFID transponder signals. It is used together with antennas
installed in a reading station and reads from and writes to RFID transponders
on objects positioned, e.g., on a conveyor belt.
The RFI341 enables the bi-directional communication with a host for, e.g.,
further processing.
Any warranty claims against SICK AG will be rendered invalid if the device is
used for any other purpose or if changes are made to the device including
changes made during the installation and electrical connection procedures.
SICK AG − Division Auto Ident - Germany - All rights reserved
8012640/2008-03-10
Safety information
RFI341 Radio Frequency Interrogator
2.2 General Safety Instructions and Protective Measures
Read carefully the general safety instructions and observe them at all times.
This also applies to the warnings provided for the activities described in each
chapter of this document.
Risk of injury by electrical current!
The power supply is connected to the main voltages 24V DC.
→
When working with electrical equipment, always follow the relevant
safety instructions.
2.3 Quick Stop and Restart
Switching off the power supply of the RFI341 can result in loss of the
following:
•
The specific application parameter set, if it was set only temporarily
•
The last reading in the result buffer
2.4 Environmental Conditions
The RFI341 is designed to cause minimum impact to the environment.
2.4.1 Power Requirements
The RFI341 has a maximum power consumption of 50W.
2.4.2 Disposal after Final Placing out of Operation
Always dispose of unusable or irreparable devices in a manner that is not
harmful to the environment and in accordance with the applicable national
waste disposal regulations. The RFI341 can be separated into recyclable
secondary raw materials and special category waste (electronic scrap).
At present, SICK does not accept the return of unusable or irreparable
devices.
SICK AG − Division Auto Ident - Germany - All rights reserved
8012640/2008-03-10
Product Description
RFI341 Radio Frequency Interrogator
3. Product Description
THE RFI341 RFID System is used for wireless identification of a variety of
objects. It works at a frequency of 13.56 MHz and reads passive ISO/IEC
15693 tags. For a working RFID system, antennas and transponders as well
as a host computer are required in addition to the product itself.
3.1 Design
3.1.1 Scope of Delivery
In the packaging, the RFI3411 is supplied with:
- 3-core RS 232 data cable (9-pin Sub D socket, open end), length 1.5 m
- An information sheet with terminal diagram and quick-start instructions
- CD-ROM with:
RFI341 PC Software for WindowsTM
RFI341 Telegram Listing
RFI341 Operating instructions
RFA3xx Antenna Operation Instructions
Note
The latest versions of all applicable publications/programs on the CD-ROM
can be also downloaded from www.sick.com
Chapter 10.1, “Accessories” provides an overview of the available
installation accessories and standard antenna types as well as measurement
equipment and sensors for reading pulse generation.
10
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Product Description
RFI341 Radio Frequency Interrogator
3.1.2 Variants
Type
Order No.
Description
RFI341-1503
1043330
RFI341 13,56MHz basic
RFI341-1503S01
1043981
RFI341; Stainless steel with
integrated Profibus
RFI341-1503S02
1044537
RFI341 with M12 connectivity
RFI341-1503S04
1045449
RFI341 his device complies
with Part 15 of the FCC Rules.
Operation is subject to the
following two conditions:
Additional Filter to be used as
shown in this spec. In case Mux
is used the FCC Version need
to be used.
Splitter
6036000
One (4W) to two (2W) antenna
splitter (passive) ; not for use
with ProfiBus-Version
Multiplexer
6036002
One (4W) to up to 4 Antenna
(each 4W) mulitplexer
Multiplexer FCC
6037325
FCC Version of the mulitplexer
Filter FCC
6037324
Filter to be used in case FCC
Part 15 need to be addressed
Antenna adapter
2046653
Bulgin to BNC antenna
connector converter.
Interface cable
RS232
tbd
M12 to RS232 interface cable
Interface cable Mux
Control
6035859
Control interface between
RFI341 and external multiplexer
3.1.3 System Requirements
The following are required to start up and operate the RFI341:
1. 24V DC mains power source
2. Using external clock pulse (start/stop interval) e.g. via the sensor inputs,
suitable reading pulse sensors for signalling the presence of an object or
the end of a reading/writing interval, e.g., a photoelectric reflex switch are
required.
3. A higher level computer (host system) with a Ethernet or RS232 to run
the PC Demo Software on a PC (Windows XP)
4. A SICK 13.56 MHz antenna, Type RFA3xx
11
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Product Description
RFI341 Radio Frequency Interrogator
3.1.4 Product Features and Functions (Overview)
High Performance RFID Interrogator
•
13.56 MHz carrier frequency
•
Compliant with the ISO 15693 standard
•
High RF transmit output power 4 W
•
Reading distance of up to 1.2 m (depended on the used antenna
transponder setup)
•
RS232 and Ethernet interface (Profibus for the PB version)
•
SWR (standing wave ratio) diagnostic
Safety and User Friendly Features
• Robust, compact industrial housing (variant with stainless steel
housing), IP 65 (IP66 for the stainless steel version)
• Capable of future improvements thanks to firmware update via serial
data interface
• Two driving outputs for actuator management
Easy Operation/Configuration
12
•
Provided with RFI341 PC Demo Software for Windows
•
Alternatively controllable with simple command strings
•
LED for data indication
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RFI341 Radio Frequency Interrogator
3.1.5 Details (Basic version)
Power LED – indicate
that the DC power is on
Data LED – indicate that
Tag data will be send
13
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RFI341 Radio Frequency Interrogator
3.1.6 Details (M12 connectivity version)
14
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RFI341 Radio Frequency Interrogator
3.1.7 Details (Profibus stainless steel version)
Inside View (main board, profibus CMF gateway, Profibus connection)
15
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RFI341 Radio Frequency Interrogator
3.1.7 Details (FCC Version)
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
Any changes or modifications not expressly approved by SICK AG could
void the user's authority to operate this equipment.
To address the FCC requirements the power supply cable as well as the
interface cable must be a shielded version. It need to be ensured, that
the shield is direct connected to the PG glant.
The FCC device is only addressing the FCC rules with the antenna
RFA331-1020 and RFA341-3520.
Usage of additional Filters required to address FCC rules. The number of
Filters required depends on the usage of external components/antennas:
1.) One antenna used direct at the antenna output of the RFI341 require
the usage of an FCC Filter at the RFI341 antenna output.
2.) If the splitter is used a Filter is required at the RFI341 antenna output
3.) If a Multiplexer is used a Filter need to be used at the RFI341
Antenna output and at each RF outputs of the Multiplexer.
Splitter
two antenna
RFI3411503S04
RFI3411503S04
Splitter
ANT
ANT
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Filter
ANT
ANT
16
Filter
Filter
Multiplexer
Filter
Filter
Filter
RFI3411503S04
Multiplexer
1-4 antenna
Filter
Standard
one antenna
ANT
ANT
8012640/2008-03-10
ANT
RFI341 Radio Frequency Interrogator
Inside view RFI341-1503S04
Note
17
The FCC Version require a shielded power supply cable.
SICK AG − Division Auto Ident - Germany - All rights reserved
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RFI341 Radio Frequency Interrogator
3.1.8 View of Details (Splitter)
Antenna input – must be connected
to RFI341 antenna output
Antenna output – each
0,5 x Tx input power
3.1.9 View of Details (Mutliplexer)
Mux – Antenna output 1 to 4
Mux Control interface –
must be connected to the
RFI Mux Control output
18
Antenna Mux input –
must be connected to the
RFI341 antenna output
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Product Description
RFI341 Radio Frequency Interrogator
3.2 Functional Description of the device
The device operates according the reader/interrogator “talks first” (ITF)
method as defined in the ISO/IEC 15693 Standard. Each transponder in
the field remains silent until a request is received. The interrogator can
identify simultaneously a number of tags present in the antenna field. The
interrogator can write data to and read data from the transponders.
Transponders can be addressed by e.g. using the factory programmed,
unique read only number (64 bit length). If the data in the user memory of
the tag are not write protected, the read/write feature enables the
rewriting of the data stored in this memory.
The RFI341 is controlled by the data interface. The commands are
described in the document “Telegram Listing RFI341” which enables the
use of the features defined in ISO/IEC 15693. Additional commands
support the use of sensor inputs and/or actuators. After configuration the
device could either work in a mode where the host in controlling the unit
or in trigger mode. Configuration in trigger mode means: The device is
waiting for a start condition to start reading automatically. Reading results
will be transmitted directly or with closing the read window. If the device
is running in background mode only a valid escape sequence will
terminate this and brings the device back in command mode (see also
telegram listing).
To start a reading process, when an object with a transponder is in the
field, the RFI341 must be clocked by one of the following:
•
A command sequence via the data interface
•
The execution (based on a suitable trigger) of a previously
defined background command
If a transponder is detected, the relevant data can be send via the data
interface to the host. The “Data LED” indicates the presence of tag data.
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Product Description
RFI341 Radio Frequency Interrogator
3.3 Operating Elements and Indicators
3.3.1 Operating Elements
The RFI341 is operated and configured via the data interface (host) using
the PC Demo Software (RS232), or command strings send via the host
interface. A variety of parameterisation options allows for the adaptation
of the device to a wide range of applications.
The following can be set:
ISO Settings including:
•
Modulation depth
•
Tag modulation type
•
Tag data rate
•
AFI (Application Field Identifier)
•
DSFID (Data Storage Field Identifier)
RFI341 Settings Including:
•
RF output power
•
Communication parameters for the interface
•
Switching on of the RF field (test)
•
Port time-out value
Detailed information could be found in the telegram listing
20
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Product Description
RFI341 Radio Frequency Interrogator
3.3.2 Function of the LEDs
The RFI341 does have several LEDs on the main PCB board. A few of
them could be useful for device service functions.
Power LED‘s
LED’s for
SWR
measurement
LED: TXD RXD
Out-1 Out-2 In-1 In-2
Closed to the terminals there is an indicator for:
•
RXT and TXD (Data will be sent from and to Host)
•
Input and output LED’s indicate the status of the IN/OUT ports
•
LED bar indicates the SWR value if measurement manually
activated
21
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Assembly
RFI341 Radio Frequency Interrogator
4. Assembly
4.1 Overview about the Assembly Steps
•
First, select the installation location for the RFA3xx antenna
•
Select the installation location for the RFI341
•
If used, select the installation location for the sensor(s)
4.2 Preparation for Installation
4.2.1 Component required
•
RFI341
•
RFA3xx (antenna)
•
Antenna connector converter
•
Probably a splitter or mulitplexer
4.2.2 Accessories
•
Screws
•
Reading pulse sensor (if used)
•
Warning labels (if required, not included with the RFI341)
4.2.3 Selecting the Installation Location
For the selection of the installation location, the distance between the RFI341
and the RFA3xx antennas as well as the distance between the RFI341 and
the host are important.
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Assembly
RFI341 Radio Frequency Interrogator
Distance Between the RFI341 and the Host
The RFI341 can be installed with a maximum data cable length depended on
the used interface and the chosen data rate (see chapter 5.4.1)
Distance Between the RFI341 and the RFA321 Antennas
The RFI341 can be installed at a maximum distance given by the antenna
cable length. Increasing the cable length will have an impact to the operating
performance.
4.2.4 Brackets
The housing can be mounted by using the pre-assembled mounting brackets
which are pre-mounted. The position of the brackets can not be changed by
the customer. The basic do have the brackets to the left and right whereas
the Profibus version does have them on the top and bottom.
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Electrical Installation
RFI341 Radio Frequency Interrogator
5. Electrical Installation
5.1 Overview of the Installation Steps
•
Connect the RFI341 with the Antenna
•
Connect the sensors to the RFI341 inputs (if used)
•
Connect the actuators to the RFI341 outputs (if used)
•
Connect the PC or Profibus data interface of the RFI341
•
Connect the power supply to the RFI341
5.2 Electrical Connections (basic version)
The electrical connections of the RFI341 consist of:
•
Socket for the RFA3xx antenna connection
•
Mux-Control interface
•
PG’s for cable connections for:
Two galvanic separated switching input terminals with each a
separate reference
Two switching outputs - 24 V DC in reference
Three terminals for the RS 232 data interface, Ethernet RJ45
plug
Two terminals for the main supply (24V DC) and Terminals for
grounding (PE)
GND
+24V in
IN 2
GND 2
IN 1
GND 1
GND
GND
OUT 2
Out 1
VS
GND
GND
RXD In
TXD out
Ethernet
FUSE 2A/T Power switch
See 5.4.5 / 5.4.6 for In- Output connections
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RFI341 Radio Frequency Interrogator
5.3 Electrical Connections (M12 connectivity version)
The M12 Connectivity Version consist out of one PG plug for e.g. Ethernet
and M12 plugs for power, RS232, Output and 2 for the Trigger Input. The
individual pinning could be found on a sticker that is placed inside the device
door.
5.4 Preparations for Electrical Installation
5.4.1 Requirements for the RS-232 HOST interface
The host interface can be operated as a RS 232 data interface. The
maximum cable lengths are a function of the selected data transfer rate:
Note To prevent interference, do not lay the cable parallel to the mains supply and
motor cables over long distances, e.g., in cable ducts.
5.4.2 Requirements for the Profi-Bus interface
The Bus termination is realised with 3 resistors mounted at the terminals. If a
device is not the last station in a Profi-Bus network those resistors have to be
removed. The shielding need to be fixed with the available shielding
brackets at the PG glands.
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Electrical Installation
RFI341 Radio Frequency Interrogator
5.4.3 Main Power supply
The main power supply is 24V DC with a max input current of less than 2
Ampere (<50W). The power cable need to be shielded if the length extend
3m. The Shield need to be connected with the “Function earth”.
Power-up Delay
After the RFI341 is powered, the device will do an internal diagnostic. After
the diagnostic is finished the interrogator sends the start-up message or will
execute the background mode. This start-up time can be within a window of
less than 3 seconds. Refer to the document “Telegram Listing RFI341” for
details.
5.4.4 Connect the RS-232 interface
Risk of damage to the interface module!
Electronic components in the RFI341 can be damaged if the host is
connected incorrectly.
•
Connect the host as shown in the figure above.
•
Check the connections carefully before switching on the RFI341.
•
Connect the host interface to the RFI341 using shielded cable (EMC
requirement). Ensure that the maximum cable length is not exceeded.
Parameter Value
26
Interface model
RS 232
Data transfer rate
9600 bd (factory setting)
Start bit
Data bits
Stop bits
Parity
No parity
Protocol SICK
STX/ETX
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Electrical Installation
RFI341 Radio Frequency Interrogator
5.4.5 Connecting the “Input 1” Switching Input
If a reading procedure of the RFI341 shall be triggered by an external
sensor, then the reading pulse sensor must be connected, e.g., to the Input 1
switching input. The triggering feature is set by the background function as
described in the document “Telegram Listing RFI341”. The GND1 is
galvanically separated. Therefore the reference for the Input 1 level must be
provided by the customer. OK1 not assembled.
+ 24V
GND
Input 1
Gnd 1
Input 2
Gnd 2
Scematic
Power supply
Switching Level
Imax,
U min,
U max
See 9.1 1
External Sensor 1
GND1 ≠ GND2
External Sensor 2
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RFI341 Radio Frequency Interrogator
5.4.6 Connecting the Switching Output
The two switching outputs are completely user defined and controlled by
special command strings as described in the document “Telegram Listing
RFI341”. The maximum load current is 400 mA. The outputs are driven with
supply power (24V DC norminal). The output drivers are powered with the
DC input voltage of nominal 24V DC and with the Dc power supply
reference. There is a direct connection between VS0 clamp to 24V DC clamp
and from Gnd0 to GND. Optional the output driver could be driven with an
external power source. Please contact the application team for further
information.
Scematic
Output Level see 9.1
VS
GND
Out 1
GND
Out 2
GND
Supply Output
Remark: GND1 (In1) ≠GND2 (In2) ≠ GND (Out1/2)
5.4.7 Ethernet
By default the IP address will be organised by the DHCP server (dynamic mode). If
it is intended to use the device in static-IP-address mode the IP address and Subnet
Mask must be programmed before according to the used sub-net. For this please use
the available parameterisation software or the related STX/ETX commands as
described in the telegram-listing.
In Stand-Alone use with a Laptop an cross cable is required and the static IP address
must be used. In standard Network configuration a standard patch cable is required.
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Electrical Installation
RFI341 Radio Frequency Interrogator
5.5 Performing Electrical Installation (Basic-Version)
5.5.1 Overview of the Connection Procedure
• Connect the earth grounding
•
Connect the RS-232 data interface or the Ethernet Interface
•
Connect the switching inputs “Input 1 and 2”, if necessary
•
Connect the switching outputs “Output 1 and 2”, if necessary
•
Connect the splitter to the RFI341 if required
•
Connect the multiplexer to the device using the Mux-control interface, if
required
•
Connect the RFA3xx antenna(s)
•
Connect the main supply of 24V DC
5.6 Performing Electrical Installation (Profibus-Version)
5.6.1 Overview of the Connection Procedure
•
Connect the earth grounding
•
Connect the RS-232 data interface or the Profibus Interface
•
Connect the switching inputs “Input 1 and 2”, if necessary
•
Connect the switching outputs “Output 1 and 2”, if necessary
•
Connect the RFA321 antenna
•
Connect the mains supply 24V DC
5.6.2 Connect the earth ground
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RFI341 Radio Frequency Interrogator
5.6.3 Connect the RS232 Interface
If the RS-232 interface is intended to be use, e.g for parameterisation with
the SICK software, it needs to be ensured that the Profibus interface
interface is disabled (switch at the CMF, see CMF documentation).
5.6.4 Connect the Profi-Bus Interface
If the Profibus interface should be used than the terminals needs to be
connected. Dependent of the position in a network the terminal resistors
need to be removed. For detailed information please refer to the CMF
gateway documentation (8010461). The max datarate of the Profibus
interface is limited to 1,5Mbit/sec.
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Operation
RFI341 Radio Frequency Interrogator
6. Operation
6.1 Overview of the Start-up Steps
•
Start the RFI341 with the default settings (Quick start)
•
Connect to the PC or HOST
•
Use the Demo/Parameterisation-Software to run the device or
•
Control the device by using the related command strings or
•
Configure (parameterise) the RFI341 for the desired application
6.2 Factory Default Settings
The table below shows the factory setting of the RFI341. The factory default
parameters are such that the RFI341 can be put into operation immediately
or following a few minor adjustments.
The default settings of the parameters are stored permanently in the RFI341
EEPROM memory. To display the stored settings, use either the PC and
execute the “REQUEST SYSTEM SETTINGS, 1010” command as described
in the document “Telegram Listing RFI341” or the PC Software and request
the display of the system settings. To change the settings, use the software
“EDIT SYSTEM SETTINGS, 1011” command.
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Operation
RFI341 Radio Frequency Interrogator
6.3 Configuration (Parameterisation)
The RFI341 is configured locally in accordance with the existing application.
The read, evaluation and output characteristic, can be parameterised as
required. The factory default settings or the application specific parameter
set is in affect before changes are made.
The RFI341 can be configured by using either the PC Demo Software or the
specific commands sent by the user host software.
6.3.1 Antenna Output Power
The output power of the RFA3xx antennas can be changed in four steps.
When the maximum power is not required to meet the system requirements,
this can be used to prevent reader interference.
(available steps: 4W / 2W / 1W / 0,75W )
6.3.2 RS232 Data Interface
The RS 232 data interface data rate can be set to different speeds. The
RFI341 supports the following settings.
Protocol
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Operation
RFI341 Radio Frequency Interrogator
6.3.3 Oscillator Switch off delay
Switching off the HF-field results in a power-on reset of all tags present in the
reader field. The length of time set should be checked very carefully. In the
worse case scenario, the tags which are in the selected or quiet mode will
loose this status. Depending on the application, it could be necessary to set
this time to a lower value. The factory default setting is 500 ms.
6.3.4 Read after Write Verify
The interrogator can be set so that it will automatically execute a read after
write if data is written to the transponder. This requires some time and the
user can define whether or not he wants to receive this verification. The
factory default setting is set “ON”.
6.3.5 HF Reset for Inventory Commands
Setting this feature to “ON” results in a HF reset before an inventory
command is executed. The factory default setting is “ON”.
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Operation
RFI341 Radio Frequency Interrogator
6.4 ISO/IEC 15693 settings
The ISO/IEC 15693 Standard allows various settings. To configure correctly
for the specific application, it is recommended that the user have a basic
understanding of the features described in this standard. Supported functions
are:
•
Changing of the forward link modulation depth. The factory
default setting is 20/100 %
•
Changing of the return link modulation type (ASK/FSK). The factory
default setting is FSK.
•
Transponder response data rate (high or low). The factory default setting
is high.
•
AFI (Application Field Identifier). If this byte is set to 00h, the interrogator
will ignore the AFI, otherwise it will use the set value.
•
Inverse UID (start with the LSB instead the MSB). The factory default
setting is reverse byte order.
•
One Slot inventory: If this value is set to one, the inventory command will
start with one time-slot.
•
34
Others (refer to document “Telegram Listing RFI341”)
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Maintanance
RFI341 Radio Frequency Interrogator
7. Maintanance
7.1 Maintenance
The RFI341 does not require maintenance.
7.2 Disposal
Irreparable devices or devices that are no longer required are to be disposed
of in an environmentally-friendly manner:
1. Always observe the applicable national waste disposal regulations.
2. Remove the RFI341 housing.
3. Remove the electronic modules and the connection cables.
4. Send the metal housing to be recycled.
5. Send the electronic modules and connection cables for disposal as special
waste. At present, SICK AG does not accept the returning of unusable or
irreparable devices.
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Troubleshooting
RFI341 Radio Frequency Interrogator
8. Troubleshooting
8.1 Installation errors
The RFA3xx antenna is installed incorrectly with respect to the object
carrying the transponder, e.g., the relationship between the transmitted
power, antenna size and transponder form factor is unfavourable.
•
The RFA3xx antenna is installed close to metal that detunes the antenna circuit. This can be checked either by
the SWR measurement inside the device. To start this
the background function need to be interrupted. Than
the SWR bottom need to be switched. The LED bar
indicates the SWR status. In addition a beeper signals
with frequency the status (high frequency is good, low
frequency is bad). Tuning is possible by inside antenna
tunable capacitors.
•
The trigger sensor is positioned incorrectly.
•
Other interrogator antennas are causing interference.
8.2 Electrical Connection Errors
•
Interfaces on the RFI341 are connected incorrectly.
8.3 Parameterisation Errors
•
Functions are not adjusted to local conditions, e.g., communication
parameters for the host interface are set incorrectly.
•
ISO or system settings are not in accordance with the transponders
used, e.g., wrong AFI used..
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Technical Data
RFI341 Radio Frequency Interrogator
9. Technical Data
9.1 RFI341-1503
Type RFI341
Host/Data Interface
Protocol
STX/ETX (see document “ RFI341
Telegram Listing 8011237 ”)
Terminal data interface RS-232
9,600 baud to 115kbaud, start, stop, no
parity (8N1)
Ethernet
TCP/IP - 10/100Mbit
RF Interface
Carrier Frequency 13.56 MHz
(13.553 to 13.567 MHz)
RF output power (max)
4 W (±1 dB)
Switching Inputs
Vinhigh max = 30 V,
Vinhigh typ = 24 V,
Vinhigh min = 18 V,
Vinlow max = 1,5 V
Iinmax < 4mA
Switching Outputs
Vout = Vin (power supply) – <=1V
Iout max = 400mA restive load ; short cut
and overload protected
Mains power supply
Operating Voltage 24V DC (20..29V);
- slope time < 3 sec
- start up time < 4 sec.
Supply Current
< 2,0A
Protection Class
Mechanical
Housing (dimensions) except stainless
steal where the with is 210mm instead of
200mm
300 mm x 200 mm x 120 mm
(15.8 in x 7.9 in x 4,7 in)
Antenna Connector
BNC (standard and M12 version)
TNC (stainless steel version)
Enclosure rating / protection class
IP65 (standard and M12 version)
IP66 (stainless steel version)
Operation temperature
-20 °C to 50 °C
Storage temperature
-20 °C to 60 °C (-4 °F to 142 °F)
Colour
SICK blue RAL5012 (standard an M12
Version)
Without paint (stainless steel version)
Mechanic
37
IEC 60068-2-64 (10..500 Hz;1 grms)
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RFI341 Radio Frequency Interrogator
Warning! This is a device for usage in Class A. Therefore radio interference could
appear in living quarters.
9.2 Dimensional Drawing
Standard and M12 Version do have the brackets to the side whereas the stainless steel
version do have it to the top and bottom like shown in the picture below
Drill template (standard version)
(stainless steel version)
160mm
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320mm
260mm
220mm
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RFI341 Radio Frequency Interrogator
10. Appendix
10.1 Accessories
Antenna(s)
RFA3xx
Splitter
Multiplexers
Antenna connector converter
RS232 cable (open end)
RS232 cable (M12 / SUBD9)
Mux-Control cable
Transponder
10.2 Glossary, Standard Basics, and Abbreviations
AM
Amplitude Modulation
A method of combining an information signal and a RF carrier with a different
voltage level assigned to a digital 0 and 1.
Antenna
A radio frequency transducer.
Antenna de-tuning
Relative to RFID implementations, the reduction in the amount of energy that
is available to power a tag or the reduction of the amplitude of the signal
reaching the reader due to the environment.
Anticollision
See collision avoidance. Collision avoidance algorithm. RFID interrogator
firmware that intercepts multiple simultaneous tag signals, sorts responses
and initiate a communication protocol to sequentially collect the information.
Frequency
The number of repetitions of a complete waveform in a specific period of
time.1 kHz equals 1,000 complete waveforms in one second. 1 MHz equals
one million waveforms per second.
DSFID
Data Storage Format IDentifier
EOF
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RFI341 Radio Frequency Interrogator
End of Frame
Host computer
The computer running software that interacts with the RFID and other
devices such as a warehouse management system.
IC
Integrated Circuit
Inductive coupling
Method of creating a current in a conductor without connecting it directly to a
power source. A tag responses to a reader by inductively coupling with the
reader carrier signal.
Interference
Any environmental condition that creates electrical noise at the same
frequency as the communication signal.
Interrogator
Another term for a reader.
ITF
Interrogator Talks First
LSB
Least Significant Bit
Modulation index
An index equal to (a-b)/(a+b) where a and b are the peak and the minimum
signal amplitudes respectively.
MSB
Most Significant Bit
Passive RFID tag
Passive tags do not have an on-board powered transmitter. They are
activated by the electromagnetic waves of a reader.
PPM
Pulse Position Modulation
Reader
Also called an interrogator. The reader communicates with the RFID tag and
passes the information in digital form to a host computer system.
Read range
The distance from which a reader can communicate with a tag. The range is
influenced by the power of the reader, antenna size, transponder form factor
and environmental conditions.
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RFI341 Radio Frequency Interrogator
RFID
Radio Frequency IDentification. A method of tracking using radio waves that
trigger a response from a device attached to an item.
SOF
Start of Frame
Subcarrier
A signal of frequency fs used to modulate the carrier of frequency f0
Tag
A generic term for radio frequency identification device
UID
Universal IDentification code
10.3 ISO/IEC 15693 – ISO/IEC 18000-3 Mode 1 Basics
The ISO/IEC 15693 is one of a series of international standards describing
the parameters for identification cards as defined in ISO/IEC 7810 and the
use of such cards for international interchange.
The ISO/IEC 15693 is intended to allow operation of vicinity cards in the
presence of other contactless cards conforming to the ISO/IEC 10534 and
ISO/IEC 14443 standards.
The ISO/IEC 18000 series is defined mainly for item management. The Part
3, Mode 1 is compatible with ISO/IEC 15693.
This summary should be used only as a basis for understanding the features
given by the ISO/IEC15693 standard. The full documentation can be ordered
from ISO/IEC.
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RFI341 Radio Frequency Interrogator
ISO/IEC 15693-2 Air Interface and Initialisation
This part of ISO/IEC 15693 describes the electrical characteristics of the
contactless interface between the transponder and the interrogator. The
interface includes power and bi-directional communications.
Initial Dialog for ISO15693 Transponder
• Activating of the transponder (interrogator RF power on)
• Transponder waiting for a command from the interrogator (ITF)
• Receiving the command from the interrogator
• Transmitting the response to the interrogator
Power Transfer
The power transfer from the interrogator antenna to the transponder is
accomplished by radio frequency via coupling antennas. The RF operating
field that supplies power to the transponder from the interrogator is
modulated for communication.
Frequency
The transponder frequency is 13.56 MHz ± 7 kHz
Communications Signal Interface
For some parameters, special modes are available to comply with different
international radio regulations and application requirements.
Modulation
Communications between interrogator and transponders takes place using
the ASK modulation principle. If the modulation index is set to 100 %, the
noise sensitivity is less. A modulation index of, e.g., 20 % will increase the
read/write performance but also increase the noise sensitivity.
Data Rate and Data Encoding
The transponder support two data coding modes
(1 out of 4 at 26.48 kbit/sec and 1 out of 256 at 1.65 kbit/sec).
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RFI341 Radio Frequency Interrogator
ISO/IEC 15693-3 Anticollision and Transmission Protocol
This part of ISO/IEC 15693 describes the anticollision and transmission
protocols.
The anticollision is based on a UID that each tag supports. The length of this
ID is 64 bits and it is guaranteed by the manufacture of the IC that the ID is
unique
AFI
The Application Field Identifier (AFI) should – if available – represent the
application for which the transponder is used. It can be programmed and
locked within the transponder with the commands given in the document
“Telegram Listing RFI341”.The AFI consists of 8 bits. If no applicable
preselection is possible, use “0h”..
The support of the AFI feature is optional. That means it is possible that ISO
15693 compliant transponders do not offer this AFI feature. It is recommend
that only those transponders that offer this AFI byte be used.
Therefore, check carefully the selection of the transponder IC type and the
requirements given by the application.
DSFID
The Data Storage Format Identifier (DSFID, 8 bit) can be used to indicate in
which manner the user data is structured in the user memory. If no DSFID is
used, this value should be “0h”.
Anticollision
The purpose of the anticollision is to make an inventory of the transponders
present in the field by using their UIDs.
The anticollision is based on slots. The interrogator can use one or sixteen
slots. If the interrogator wants to ensure that tags are present for an
anticollision or knows that only one transponder is present in the field, the
slot length of one is adequate.
If additional transponders are in the field, the interrogator will detect this by a
erroneous CRC.
If more than one tag is in the field and the interrogator uses the 16 slots,
each transponder will calculate a number (with help from UID) between 1
and 16 and replies in a special slot. It can occur that more than one tag
replies in the same slot.
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RFI341 Radio Frequency Interrogator
In this case, the interrogator will skip to the next slot. Within the next
inventory session, these transponders will participate whereas those that
have been successfully read (UID) could be not present – depending on the
function, which may set these transponders to the quiet stage. This process
could be repeated until all transponders are identified. Tags colliding in a slot
could be separated with masks according to ISO Standard.
Command Codes
The ISO 15693 requires that only two commands to be mandatory in an IC.
These are “Inventory and Stay quiet”. All other commands are defined but
optional.
Therefore, ensure that the tag used supports the application requirements.
These include:
• Read and write feature
• Lock block feature
• Read and write of multiple blocks
• AFI and DSFID features
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RFI341 Radio Frequency Interrogator
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