Laser Beta Lasermike Ls8000 3 Users Manual 0921 01561
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LaserSpeed LS8000-3
INSTRUCTION HANDBOOK
- installation, setup and technical reference (for qualified personnel only)
www.betalasermike.com
Manual Part Number: 93463 • Manual Drawing Number: 0921-01561 • English • Revision A• © Copyright Sep 2007
LaserSpeed 8000-3 Instruction Handbook
Contents
Declaration of Conformity
Part No. 93463 / Drawing No. 0921-01561
Page 2 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Contents
Contents
Contents ...............................................................................................................................3
Proprietary Statement ..........................................................................................................7
European Commission Requirements................................................................................8
Safety Information................................................................................................................9
Intended Use .......................................................................................................................................9
Laser Classification ...........................................................................................................................10
Laser Safety Precautions ..................................................................................................................11
Labels and Safety Features ..............................................................................................................12
LS8000-3 Labels.....................................................................................................................12
LS8000-3E Labels ..................................................................................................................13
LS8000-3X Labels ..................................................................................................................13
Introduction ........................................................................................................................14
System Overview................................................................................................................14
Principle of Operation........................................................................................................................14
Installing the System .........................................................................................................16
Mounting the Gauge..........................................................................................................................16
Mounting Distance ..................................................................................................................17
Laser Safety............................................................................................................................17
Environmental Conditions.......................................................................................................17
Ambient Temperature................................................................................................17
Coolant ......................................................................................................................17
Air Wipe / Quick Change Window .............................................................................18
Steam & Mist .............................................................................................................18
Mounting Location ..................................................................................................................19
Twinner Lines .........................................................................................................................20
Aligning the Gauge............................................................................................................................20
Aligning the Gauge............................................................................................................................21
Gauge Orientation ..................................................................................................................23
Connecting Power to the Gauge .......................................................................................................24
Connecting to Outputs.......................................................................................................................25
LS8000-3 25-Pin Connector Pinout........................................................................................26
LS8000-3 9-Pin Connector Pinout..........................................................................................27
LS8000-3 M12 Connector Pinout ...........................................................................................27
LS8000-3E/LS8000-3X Connector Pinout..............................................................................28
LS8000-3E/LS8000-3X Breakaway Cable Pinout ..................................................................30
Maximizing Performance...................................................................................................................31
Material Present Adjustment ..................................................................................................32
Material Present Dropout Time Selection...............................................................................32
Validation Time Limit Selection ..............................................................................................32
Starting/Ending Length Correction .........................................................................................33
Interfacing with the LS8000-3 ............................................................................................34
LS8000-3 Interface Connectors ........................................................................................................34
DB25 Connector .....................................................................................................................35
RS-232 Transmit and Receive (Pins 1-2)..................................................................36
High Speed Pulse Output (Pins 3, 5, 7, 9) ................................................................37
User Scaleable Pulse Output (Pins 15, 4, 6, 8).........................................................38
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Contents
Differential vs. Single Ended Pulse Outputs..............................................................38
Quadrature Output Phase Relationships...................................................................39
Quadrature Outputs at Extremely Low Pulse Frequencies .......................................41
Material Present Input (Pin 10)..................................................................................43
Connecting Material Present Switches......................................................................46
Signal Grounds (Pins 11, 19, 21) ..............................................................................49
Measurement Direction Input (Pin 14).......................................................................51
Laser Interlock (Pin 16) .............................................................................................52
Shutter Control (Pin 17) .............................................................................................53
Length Reset Input (Pin 18).......................................................................................53
User VIN (Pin 20)........................................................................................................54
Index (Printer) Pulse Output (Pins 22-23) .................................................................55
+24VDC Power Input (Pins 24-25) and Power Grounds (Pins 12-13) ........................55
DB9 Connector .......................................................................................................................56
RS-422 Transmit (+/-) and Receive (+/-) (Pins 1-4) ..................................................56
Analog Output Voltage/Ground (Pins 6-7).................................................................57
Measurement Synchronization Input (Pins 8-9) ........................................................59
M12 Ethernet Connector ........................................................................................................60
LS8000-3 M12 Connector Pinout ..............................................................................60
LS8000-3 Interface Cables................................................................................................................61
DB25 Cables...........................................................................................................................61
Ethernet Cables ......................................................................................................................61
Heavy Industrial Cables..........................................................................................................62
Breakaway Cables..................................................................................................................63
Low Temperature Breakaway Cable .........................................................................64
High Temperature Breakaway Cable ........................................................................64
Breakaway Cable Mounting Bracket .........................................................................65
LS8000-3 Breakout Assemblies ........................................................................................................66
DB25 Breakout Assemblies ....................................................................................................67
Mounting Dimensions for: 85328, 85329...................................................................67
DB37 Breakout Assemblies ....................................................................................................68
Mounting Dimensions for: 85321, 85322, 85323, 85324 ..........................................68
Breakout Assembly Pinouts....................................................................................................69
RS-232 Connector .....................................................................................................69
RS-422 Connector .....................................................................................................69
Ethernet Connector ...................................................................................................70
Breakout Assembly A/C Power Connector................................................................70
Application Interfaces ........................................................................................................................71
Light Stack Interface ...............................................................................................................71
Thermostat Interface...............................................................................................................73
Index Pulse & Length Thresholds...........................................................................................74
Gauge-Gauge Synchronization ..............................................................................................75
Banner D10 Through Beam Switch...................................................................................................77
Single through beam...............................................................................................................77
Dual through beam (uses two D10 modules) .........................................................................77
Banner Retroflective Switch (Picodot)...............................................................................................78
DataPro 1000 ....................................................................................................................................79
DataPro 3000 ....................................................................................................................................80
DataPro 5000 BB ..............................................................................................................................81
DataPro 5000 DN ..............................................................................................................................82
DataPro 5000 DN – Beckhoff I/O ......................................................................................................83
Domino A Series ...............................................................................................................................84
Durant President Series ....................................................................................................................85
Hengstler 723.1 .................................................................................................................................87
Imaje S4/S8 .......................................................................................................................................88
MI800.................................................................................................................................................89
Part No. 93463 / Drawing No. 0921-01561
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Contents
Newport P6000A ...............................................................................................................................90
Red Lion PAXI ...................................................................................................................................91
Siemens Counter Module 450-1 .......................................................................................................92
Siemens Counter Module 6ES5 385-8MB11 ....................................................................................93
TrueMeter ..........................................................................................................................................94
LaserTrak Software ............................................................................................................95
LaserTrak for Windows .....................................................................................................................95
Installing the LaserTrak Software......................................................................................................95
System Requirements ............................................................................................................95
Software Installation Procedure..............................................................................................96
Starting LaserTrak ..................................................................................................................96
Chart Recorder Screen .....................................................................................................................99
Gauge Info ..............................................................................................................................99
Gauge Status........................................................................................................................100
LaserTrak Toolbar ................................................................................................................101
LaserTrak Menus..................................................................................................................101
File Menu .................................................................................................................101
Tools Menu ..............................................................................................................102
LaserTrak Configuration Screens....................................................................................................106
Standard Operating Parameters...........................................................................................109
Output Configuration Parameters.........................................................................................110
Advanced Operating Parameters .........................................................................................111
Chart Recorder Toolbar ........................................................................................................114
Displaying Data ...............................................................................................................................115
Chart Display ........................................................................................................................115
Monitor Display .....................................................................................................................117
Length Mode Display ............................................................................................................118
RS-232/RS-422 Communication ...................................................................................... 121
Baud Rate & Framing......................................................................................................................121
Serial Commands to set Baud Rate & Framing ...................................................................121
Baud Rate & Framing Settings .............................................................................................122
RS-232 Maximum Cable Lengths.........................................................................................122
Baud Rate Indication on Power Up .................................................................................................123
Automatic Baud Rate Detection ...........................................................................................124
Communication Protocol .................................................................................................................125
Communication Protocol: Command Descriptions..........................................................................127
Real-Time Data Timing ...................................................................................................................164
Communication Protocol: Command List........................................................................................165
Ethernet Communication................................................................................................. 167
Supported Protocols ........................................................................................................................167
COM LED ........................................................................................................................................167
Configuration Settings .....................................................................................................................167
IP Address Configuration ................................................................................................................168
DHCP ..............................................................................................................................................168
Ping Example using DHCP...................................................................................................169
Telnet Example using DHCP................................................................................................170
Manually Configured IP Address.....................................................................................................170
Configuring the IP Address with LaserTrak ..........................................................................171
Configuring the IP Address with HyperTerminal ..................................................................171
Ping / ICMP .....................................................................................................................................172
Ping Example using Manual IP Address ..............................................................................172
TCP Communications .....................................................................................................................173
UDP Communications .....................................................................................................................173
Part No. 93463 / Drawing No. 0921-01561
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Contents
UDP Command Example .....................................................................................................174
UDP Real-Time Measurement Example ..............................................................................175
UDP Discovery Beacon...................................................................................................................176
Discovery Beacon Format ....................................................................................................176
Discovery Beacon Response Format ...................................................................................177
UDP Discovery Beacon Example .........................................................................................178
Transmitted Discovery Beacon................................................................................178
Received Discovery Beacon Responses ................................................................179
Specifications................................................................................................................... 184
General Specifications ....................................................................................................................184
LS8000-3 Specifications..................................................................................................................185
LS8000-3E Specifications ...............................................................................................................186
LS8000-3X Specifications ...............................................................................................................187
LS8000-3 Features..........................................................................................................................188
Appendix A: LS8000-3 Dimensions & Installation Drawings......................................... 189
Appendix B: LS8000E Dimensions & Installation Drawings ......................................... 192
Appendix C: LS8000X Dimensions & Installation Drawings ......................................... 198
Appendix D: Supply Voltage Requirements ...................................................................202
Dual Conductor Supply ...................................................................................................................202
Voltage Drop using Single Supply/Single Return .................................................................202
Quad Conductor Supply ..................................................................................................................203
LaserSpeed Cables .........................................................................................................................204
Appendix E: Troubleshooting Guide .............................................................................. 205
Communications..............................................................................................................................205
Quality Factor/Valid Measurements ................................................................................................209
Measurements.................................................................................................................................214
Miscellaneous..................................................................................................................................217
Ethernet ...........................................................................................................................................218
Index.................................................................................................................................. 220
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Proprietary Statement
Proprietary Statement
Manufacturer/Distributor
Beta LaserMike Inc, 8001 Technology Blvd, Dayton, OH 45424, USA
About This Manual
This manual contains descriptions, drawings, and specifications for a Beta LaserMike product. Equipment or products made prior to or
subsequent to the publication date of this manual may have parts, features, options, or configurations that are not covered by this manual.
Specifications contained herein are subject to change by Beta LaserMike without prior notice. Beta LaserMike is not responsible for errors or
omissions that may be contained herein or for incidental or consequential damages in connection with the furnishing or use of this information.
Comments or suggestions for possible improvements to the manual are appreciated. Please email us at
manualfeedback@betalasermike.com.
The information contained in this manual is the property of Beta LaserMike. The information disclosed in this document is furnished in confidence
and upon the condition that individual and corporate intellectual rights, whether patented or not, will be respected. If this document is supplied on
removable media (e.g. CD), an electronic copy (stored on-site) and one printout is permitted. If this document is supplied in printed form, no part
of this document may be reproduced or scanned without the prior written consent of Beta LaserMike. This document may not be distributed or
circulated to third parties.
Limited Warranty
Beta LaserMike will correct by repair, or at Beta LaserMike‘s option, by replacement, F.O.B Beta LaserMike’s plant, any defect in workmanship or
material in any equipment manufactured by Beta LaserMike which appears under normal and proper use within twelve months from the date of
shipment (eighteen months for OEM’s), provided Beta LaserMike is given reasonable opportunity to inspect the alleged defective equipment at
the place of its use and under conditions of its use.
EXCLUSIONS: This warranty does not cover products which have been modified, altered, or repaired by any other party than Beta LaserMike or
its authorized agents. Furthermore, any product which has been, or is suspected of being damaged as a result of negligence, misuse, incorrect
handling, servicing, or maintenance; or has been damaged as a result of excessive current/voltage or temperature; or has had its serial
number(s), any other markings, or parts thereof altered, defaced, or removed will also be excluded from this warranty.
WARRANTY SERVICE AT CUSTOMER SITE: Warranty service performed at the customer’s facility will be free of charge for parts and labor;
however, the customer will be liable for transportation and living expenses of personnel dispatched to effect such repair. A purchase order or
other written confirmation of the acceptance of these charges, signed by an authorized individual, will be required prior to commencement of
repairs. Additional charges may be assessed the customer if: 1) The equipment is not made available on a timely basis, 2) The equipment is
found to be without fault, and/or 3) It is determined the equipment is not under warranty, whether by expiration of the warranty or any act which
voids the warranty.
OTHER THAN AS SET FORTH HEREIN, BETA LASERMIKE MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, OF MERCHANTABILITY
AS TO THE EQUIPMENT MANUFACTURED BY IT, AND THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES WHICH EXTEND
BEYOND THE DESCRIPTION ON THE FACE THEREOF. Beta LaserMike’s obligation to correct defects in such equipment by repair or
replacement in accordance with the foregoing provisions is in lieu of any other warranties, expressed or implied, and in no event shall Beta
LaserMike be liable for incidental or consequential damages. No service of Beta LaserMike’s equipment is permitted during the warranty period
without the specific written consent of Beta LaserMike.
Service
Your instrument was carefully inspected electrically and mechanically prior to shipment. It should be free of surface mars and scratches, and it
should be in perfect working order upon receipt. If any indication of damage is found, file a claim with the carrier immediately, prior to using the
instrument. If no damage is apparent, proceed by using this manual to install and setup this instrument.
Save the shipping carton and packing material for future storing or shipment of the instrument. If, at some future time, the instrument must be
returned to the factory for service, include a full description of the instrument failure and the mode of operation the instrument was in at the time
of failure. Also include a contact person to discuss the instrument failure.
When returning the instrument to Beta LaserMike, first contact your local Beta LaserMike Service Department for a Return Material Authorization
(RMA). The RMA number is needed for proper handling of returned equipment. Ship the instrument in the original carton, or, if the original carton
is unavailable, ship in a carton providing sufficient protection. Send the instrument to the Asia, Europe, or USA office (addresses listed on the
outside cover of this manual), whichever is closest to you or to the office indicated by your sales engineer. Place the RMA number on the outside
of the carton, and include a purchase order number and any other information specific to your instrument. Field warranty service is available, if
the customer pays travel expenses by advance purchase order. All service operations should be performed by skilled electronics technicians,
who have been trained by Beta LaserMike.
Part No. 93463 / Drawing No. 0921-01561
Page 7 of 221
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LaserSpeed 8000-3 Instruction Handbook
European Commission Requirements
European Commission Requirements
This equipment is intended for use in a heavy industrial environment. The 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 other equipment. There is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interference to other equipment the user is
encouraged to try to correct the interference by one or more of the following measures:
- Re-orientate or relocate the equipment.
- Increase the separation between the pieces of equipment.
- Connect the pieces of equipment on separate mains circuits.
- Ensure that the relevant items of equipment are properly and securely earthed to a common earth point using adequately sized cable or other
means of connection.
Where supplied or specified, shielded interconnection cables must be employed with this equipment to ensure compliance with the pertinent RF
limits. Changes or modifications not expressly approved by the company could void the user’s authority to operate the equipment.
This product has been rigorously tested to comply with the European EMC (Electromagnetic Compatibility) Directive. With regard to this, Beta
LaserMike recommends that any non-Beta LaserMike peripheral equipment is CE marked for the Heavy Industrial environment (EN50082-2).
Beta LaserMike also recommends that any cables not supplied by Beta LaserMike, but used for powering Beta LaserMike equipment, be built
using good EMC practices (i.e. cables with braided shield, and connectors with 360° termination of the braid to a metal/metalised shell connector
at both ends). If you have any questions regarding this, contact the Beta LaserMike Service Department.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Safety Information
Safety Information
• Under NO circumstances should the earth safety connections
be broken – internal damage to sensitive electronic components
may occur and at worst electrocution to personnel may result.
• This equipment must be earthed/grounded.
• Relays and associated wiring are rated for SELV levels i.e. 60
VDC & 30 VAC RMS. These levels must not be exceeded.
• Maintenance, repairs and electrical connections should be
performed by a suitably qualified person for the country of
installation.
• Input power to the equipment is of direct current type
designated by the symbol on equipment housing and shown
below.
Reference: IEC 60417-5031
• The equipment contains a slow blow type fuse to protect against
input power overloads and is not user replaceable.
Intended Use
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Safety Information
Laser Classification
The Model LS8000-3 Non-contact Length and
Speed Gauge (Model LS8000-3) is classified as a
IIIb laser device. This category contains infrared and
visible laser devices with powers up to 500 mW.
The optical gauge in the system uses a 50 mW
solid-state laser device operating between 760 and
800 nm (near infrared region of the spectrum).
VISIBLE AND INVISIBLE
LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
PEAK POWER 50mW
WAVELENGTH 650-810 nm
Complies with EN60825-1:2001. Complies with 21 CFR 1040.10
and 1040.11 except for deviations pursuant to Laser Notice
No. 50, dated Jul y 26, 2001.
A class IIIb product must have the following safety
features:
WARNING - NO USER SERVICEABLE
PARTS. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
A 5-second delay after power-up before laser radiation is emitted from
the gauge.
An indicator light to inform personnel near the gauge that laser
radiation is being emitted.
A mechanical device to physically block the laser beam from exiting the
gauge.
An interlock circuit to shut off the laser when the circuit is opened.
All hazards must be properly identified with warning labels.
These basic safety features are incorporated to promote safe operation of the
laser.
A class IIIb laser must also have a key switch to power the laser, ensuring that
only trained personnel can operate the instrument. Because the location of the
gauge can often make it difficult to access a key switch, the key switch needs
to be installed by the final user. It should be placed in a location that will be
readily accessible to the operators. For more information on installing the laser
key switch, see the Installing the System section.
The user of a laser device must comply with a different set of regulations.
Many countries and individual states have passed legislation regarding the use
of laser products.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Safety Information
The following system specifications will help establish appropriate safety
measures.
Maximum Laser Power
0.050 watt
Laser Wavelength
0.785 micrometer
Laser Spot Size (Elliptical)
3 x 1.5 millimeters
Beam Divergence
0.5 milliradians
Pulse Rate
Continuous wave
Maximum radiance (power
divided by spot-size area)
0.050 Watt/0.141372 cm
2
[0.3536 W/cm ]
2
Laser Safety Precautions
The laser beam in the optical gauge is very powerful and can permanently
damage eyes not protected by laser safety glasses. To avoid exposing
yourself to hazardous radiation, you must take these precautions:
• Never look into the laser beam. If you must look at the beam,
view it from an angle and in the direction in which the beam is
travelling.
• The beams emitted from the Model LS8000-3 are invisible to the
unaided eye. Return the beam shutter to the closed position
when the system is not in use or during setup.
• Ensure that all direct reflections are blocked.
• Remove all rings, watches, or jewellery from your hands when
working on or near the gauge—can cause hazardous reflections.
• Never install the instrument at eye level.
• Operate the system only with people who have been instructed
in laser safety.
• Post warning signs and lights that are active when laser is
operating.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Safety Information
If your country or state has no regulations governing the safe use of lasers,
Beta LaserMike recommends that you follow the guidelines specified by the
American National Standard for the safe use of lasers (ANSI Z136.1–1986).
For a copy of this document, write to:
Laser Institute of America
13501 Ingenuity Drive, Suite 128
Orlando, Florida 32826
1-800-345-2737
Labels and Safety Features
This section acquaints you with the advisory and identification labels on the
instrument and the safety features incorporated into the design of the
instrument. The following figures show the advisory and identification labels
on the Model LS8000-3.
LS8000-3 Labels
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Safety Information
LS8000-3E Labels
LS8000-3X Labels
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Introduction
Introduction
This manual describes the installation and setup of the LaserSpeed 8000
gauge. For daily routine usage, see the LaserSpeed 8000 Operator Guide.
The Model LS8000-3 LaserSpeed® Non-contact Length and Speed gauge is
an industrial, Laser-Doppler based instrument that measures the velocity and
length of material. Due to the nature of the laser-based measurement, there is
no physical contact with the material. This eliminates the problems of wheel
wear and slippage that plague mechanical/encoder based length
measurement systems.
System Overview
The Model LS8000-3 is a stand-alone instrument that requires only 24 VDC
input power to operate. The system has a variety of industrial outputs. Also, a
variety of information including length, velocity, system operating parameters,
and setup parameters can be read and configured using the communications
interfaces.
The LS8000-3 is permanently calibrated to a NIST traceable standard at the
factory. Aside from periodic cleaning of the optical window, the LS8000-3
does not require maintenance.
See the Specifications section at the end of this manual.
Principle of Operation
LaserSpeed utilizes dual-beam interferometer technology to provide accurate
velocity readings. The measured velocity is integrated over time to measure
the length of moving objects. The opto-electronic portion of the LS8000-3
generates a laser beam that is split and then crossed in space. The two
crossing beams interact, producing a fringe pattern that is orthogonal to the
plane of the two beams.
Light is scattered when material passes through the measurement region. This
scattered light is collected by the gauge and converted to electrical signals.
The frequency of the electrical signal contains information with regards to the
velocity of the material. The signal processor converts the electrical signals to
frequency information that is directly proportional to the velocity of the material
moving through the laser beams. The signal processor converts the frequency
information into velocity information and updates user outputs. In order to
determine if there is an object in the measurement area, the gauge measures
the amount of reflected laser light.
Part No. 93463 / Drawing No. 0921-01561
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System Overview
Resulting
Electrical Signal
with Frequency (f)
κ
t
Measurement Region
Side View
Top View
Material Surface
d
Material Movement
λ
Fringe distance (d) is a function of laser wavelength
(λ) and beam angle (κ):
d=
Period is the inverse of frequency:
t=
1
f
Velocity is distance divided over time:
v=
d
t
Velocity is integrated to find Length
L = ∫ v ⋅ dt
2 sin κ
T
0
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Installing the System
Installing the System
This section describes mounting, alignment and other installation concerns for
the LS8000-3.
The installation can be broken down into five steps:
Mounting the gauge
Aligning the gauge
Connecting power to the gauge
Connecting to the outputs
Maximizing gauge performance
Mounting the Gauge
The LS8000-3 must be placed at the correct standoff distance from the moving
material. A series of LaserSpeed gauges provide a variety of standoff
distances and depths of field.
Model
Standoff Distance
Depth of Field
LS8000-303
300mm (11.8 in)
35mm (1.4 in)
LS8000-306
600mm (23.6 in)
50mm (2.0 in)
LS8000-310
1000mm (39.4 in)
100mm (3.9 in)
LS8000-315
1500mm (59.0 in)
200mm (7.9 in)
LS8000-320
2000mm (78.7 in)
200mm (7.9 in)
LS8000-325
2500mm (98.4 in)
200mm (7.9 in)
Please refer to the following Appendices for mounting dimensions and
installation drawings:
Model
Section
LS8000
Appendix A
LS8000E
Appendix B
LS8000X
Appendix C
Part No. 93463 / Drawing No. 0921-01561
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Installing the System
Mounting Distance
When the material is within the depth of field, the gauge makes accurate
measurements. Since the best signal comes from the center of the depth of
field, the center is the source of the best measurements. This is because the
two laser beams totally overlap at the center of the beam crossings and all of
the laser power is used to form fringes.
At the edges of the depth of field, however, some beam-crossing areas
overlap and some do not. The areas that overlap form fringes and thus yield
useful Doppler signals; the areas that do not overlap do not form fringes;
rather, they produce only noise with no Doppler signals. Any measurements
made outside the depth of field may not be reliable.
Laser Safety
When mounting of the gauge, ensure that the laser beams are blocked by
machinery or beam blocks when material is not present in the measurement
area.
Environmental Conditions
Ambient Temperature
All LaserSpeed gauges have a built-in cooling system for applications in which
ambient temperatures exceed 45ºC.
Cooling fluids can be routed through the gauge using the 1/8-inch NPT fittings
(1/4" NPT on LS8000E and LS8000X) on the back of the gauge. Typical flow
rates of 1.5 litres/minute for water and 50 liters/minute for air are sufficient.
There is minimal pressure drop through the gauge, so supply pressure can be
very low.
Ensure that the water temperature is above the condensation temperature or
dew point, to prevent condensation from collecting on the front window of the
gauge. If water condenses on the optical window, the laser beams could be
blocked, resulting in reduced performance or loss of function.
Coolant
In applications with coolants on the material, an air jet may be required to
remove the coolant from the measurement area. Since the speed of the
coolant is generally different from that of the material, erroneous
measurements could result. When incorporating an air jet, be sure to blow the
coolant from the measurement volume at 90° from the material’s motion. If the
Part No. 93463 / Drawing No. 0921-01561
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Installing the System
coolant is blown off in the same direction the material is moving, the air
velocity can add or subtract from the material’s velocity; this too may cause
erroneous measurements.
Air Wipe / Quick Change Window
To prevent dust, dirt, and moisture from accumulating on the optical window
the gauge can be fitted with an Air Wipe/Quick Change Window. Clean,
instrument grade air (see Specifications section for details) is blown at low
pressure over the window to keep it clean. The window can be removed for
easy cleaning. A clean, soft cloth should be used to clean the window. If an
abrasive cloth is used, the optical coating may be damaged, leading to poor
measurements. When replacing the window, put a small amount of vacuum
grease on the O-Ring.
For measurements and details about removing the Air Wipe/Quick Change
Window, see Appendix A.
Steam & Mist
Steam or mist is sometimes present in some applications. The air-wipe is not
designed to clear steam or mist between the gauge and material, but only to
keep contaminants from depositing on the optics window. Another means of
removing steam or mist may need to be used. The steam or mist may be light
enough to allow the laser beams to pass through without interference. If this is
not true, a fan may be used to clear out the steam or mist between the gauge
and housing. If a fan is not adequate or practical, an “air purge” can be
installed to clear the beam path. Contact your Beta LaserMike representative
Part No. 93463 / Drawing No. 0921-01561
Page 18 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
for more details. When mounting the gauge, be aware of the environment in
which the gauge is operating. Steam, mist, coolant on the material, ambient
temperature, scale and slag may all affect the performance of the gauge.
These environmental conditions may need to be modified as mentioned above
in order to maximize the performance of the gauge.
Mounting Location
When mounting the gauge over the
material, be sure the gauge is not
directly over a roller or some other
device. If the laser beam from the gauge
strikes an object, it may detect a false
Material Present. In this case, the gauge
will not be able to detect when the
actual material is not in the
measurement volume.
Standoff
Distance
PASSLINE
A device that captures most of the laser
Rollers
light is called a beam dump and may be
Standoff
required (see figure). A suitable beam
Distance
dump is a large-diameter pipe, 150
millimeters (6 inches) or larger, angled
at 45° from the laser beams. A rusty
Cut at 45º
pipe is an excellent beam dump. If scale
can deposit in the base of the beam
Beam Dump
dump, the pipe may need to be cleaned
Open Both Ends
periodically to prevent false Material
Present readings. The beam dump
should be far enough from the gauge
that it cannot be measured. A good guideline is to place the beam dump at
least double the standoff distance from the gauge.
Part No. 93463 / Drawing No. 0921-01561
Page 19 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
Twinner Lines
When mounting the gauge on a twinner line, the gauge should be positioned
far enough from the twinner that the twist is set. If the gauge is placed close to
the twinner, it may not be able to measure due to excessive vibration and the
spin imparted on the wire due to the twisting motion. Moving the gauge down
the line farther from the twinner may improve the gauge's ability to make
measurements.
Near Takeup
Twist is set, wires not
spinning or corkscrewing.
Near Twinner
Wires spin and
corkscrew (make it
look like wires are
not moving)
Line Movement
Part No. 93463 / Drawing No. 0921-01561
Page 20 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Installing the System
Aligning the Gauge
Once the gauge is mounted at the proper standoff distance, the critical
alignment angles need to be checked. To obtain accurate results, the LS80003 must be mounted so the surface being measured is perpendicular to the
optical axis. The best method to ensure this is to place a level alongside the
gauge. The material being measured should be parallel to the front face of the
gauge and the material motion should be parallel to the base of the gauge.
The velocity measurement, which is made in the plane of the two laser beams,
is the rate at which the material passes the fringes of the beams. When the
motion of the material is perpendicular to the fringes, the velocity
measurement is considered calibrated. If the fringes are at an angle to the
motion of the material (angular rotation), measurement errors occur. The
measured velocity equals the actual velocity multiplied by the cosine of the
angle by which the alignment deviates from the direction of material
movement.
Three types of misalignment are possible. Two of the three are responsible for
measurement errors: rotation about the optical axis and tilt in the plane of the
beams. The errors are proportional to the sine of the misalignment angle.
Misalignment will always make the gauge measure velocities and lengths that
are too low.
Part No. 93463 / Drawing No. 0921-01561
Page 21 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
Types of Gauge Misalignment
Measured Velocity = Actual Velocity x cos(A) x cos(B)
Error Angle
(Degrees)
Cosine
0
0.25
0.50
0.75
1.0
2.0
3.0
4.0
5.0
10
1
0.99999
0.99996
0.99991
0.99985
0.99939
0.99863
0.99756
0.99619
0.98481
Speed and
Length Error
(%)
Material Movement
0
-0.001
-0.004
-0.009
-0.015
-0.061
-0.137
-0.244
-0.381
-1.519
A
Rotation About Optical Axis
- Causes Measurement Error
B
C
Material Movement
Not perpendicular to Material Motion
- Causes Measurement Error
Part No. 93463 / Drawing No. 0921-01561
Material Movement
into/out of page
Not perpendicular to material edges
- No measurement error
Page 22 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
Gauge Orientation
The LaserSpeed gauge must be mounted such that the material to be
measured moves in a direction parallel to the bottom of the LS8000-3, as
shown below.
LS8000-3
3
3
3
3
Material Movement
☺
RIGHT
WRONG
LS8000-3E – can be mounted either from the bottom or the side
Material Movement
☺
2
2
2
2
Material Movement
Material Movement
RIGHT
WRONG
Material Movement
Material Movement
☺
RIGHT
LS8000-3X
Material Movement
☺
WRONG
Material Movement
RIGHT
Part No. 93463 / Drawing No. 0921-01561
Page 23 of 221
WRONG
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Installing the System
Connecting Power to the Gauge
The gauge requires a 20–28 VDC (nominal 24 VDC) supply to be connected to
Pin 24 and/or Pin 25 with the corresponding ground to Pin 12 and/or Pin 13 of
the 25-pin D-sub connector. The supply should be able to drive at least 2
Amps. For detailed information on supplying power to the gauge, see
Appendix D.
Notes: Do not attach wires to the gauge while power is applied. Make all
wiring connections with power turned off. The gauge contains internal
fusing (3A, 125 V) on the 24 VDC supply line. This fuse is not user
serviceable.
The LS8000-3 is classified as a kit, according to CDRH regulations. It is your
responsibility to install a key switch to control the operation of the device. The
key switch should be installed as shown in the following figure. It is in line with
the 24-volt supply line that will service to power the device. The recommended
key switch can be found in the accessory kit. The key switch should be
mounted in a convenient location that does not require exposure to the laser
beams. After installation, label the panel as to which position corresponds to
“Laser On” and “Laser Off.”
The following figure shows the correct installation of the recommended switch
(C&K Components part number YM06132C205NQ). If another type of key
switch is used, it should be verified that the key is removable only in the “Laser
Off” position.
For more information on laser safety issues, refer to the Safety section at the
beginning of this manual.
Warning:
A key switch must be installed and labelled correctly to ensure
proper protection of personnel working with the laser.
Panel Cutout
for Keyswitch
Laser Off
Laser On
0.50in
[12.7mm]
0.42in
[10.7mm]
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
Connecting to Outputs
On the LS8000-3 model, the outputs of the gauge are contained on the 9-pin
and 25-pin D-sub connectors, and the M12 D-Coded Ethernet connector. On
the LS8000-3E and LS8000-3X, all outputs are contained on a 39-pin circular
connector. Their pin values are shown in the following tables. Each signal is
explained in detail in the Interfacing with the LS8000-3 section.
Note:
In order for the LS8000-3 to be operational, pins 16 and 17 must
be connected to signal ground. These signals operate the internal
laser shutter and the laser interlock. When these connections are
open, the laser will not turn on and the shutter will not open. You
must provide the correct signals to operate the gauge.
Part No. 93463 / Drawing No. 0921-01561
Page 25 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
LS8000-3 25-Pin Connector Pinout
Pin
Description
1
RS-232 Transmit (from LS8000-3 to host)
2
RS-232 Receive (from host to LS8000-3)
3
Phase A True – High Speed Output (RS-422 Drivers)
4
Phase A False – User Scaleable (5-24V Output)
5
Phase A False – High Speed Output (RS-422 Drivers)
6
Phase B True – User Scaleable (5-24V Output)
7
Phase B True – High Speed Output (RS-422 Drivers)
8
Phase B False – User Scaleable (5-24V Output)
9
Phase B False – High Speed Output (RS-422 Drivers)
10
Material Present Input (5-24V Input)
11
Signal Ground for Inputs/Outputs/Serial
12
Power Ground for 24V Input
13
Power Ground for 24V Input
14
Measurement Direction Input (5-24V Input)
15
Phase A True – User Scaleable (5-24V Output)
16
Laser Interlock (Connect to Signal Ground to Turn On Laser)
17
Shutter Control (Connect to Signal Ground to Open Shutter)
18
Length Reset Input (5-24V Input)
19
Signal Ground for Inputs/Outputs/Serial
20
User VIN – Voltage input for Isolated Pulse Outputs (5 to 28V DC). The
voltage supplied will be the voltage level of the pulse outputs supplied by
the LS8000-3. If a Voltage is not supplied, the pulse outputs will be
approximately 4.5V.
21
Signal Ground for Inputs/Outputs/Serial
22
Index Pulse True - User Scaleable (5-24V Output)
23
Index Pulse False - User Scaleable (5-24V Output)
24
24V Fused Input
25
24V Fused Input
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
LS8000-3 9-Pin Connector Pinout
Pin
Description
1
RS-422 Transmit + (from LS8000-3 to host)
2
RS-422 Transmit – (from LS8000-3 to host)
3
RS-422 Receive + (from host to LS8000-3)
4
RS-422 Receive – (from host to LS8000-3)
5
Signal Ground for Inputs/Outputs/Serial
6
Analog Output Voltage
7
Analog Output Ground
8
Measurement Synchronization Input +
9
Measurement Synchronization Input -
LS8000-3 M12 Connector Pinout
Pin
Description
1
Ethernet TX+ (from LS8000-3 to host/switch)
2
Ethernet RX+ (from host/switch to LS8000-3)
3
Ethernet TX- (from LS8000-3 to host/switch)
4
Ethernet RX- (from host/switch to LS8000-3)
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
LS8000-3E/LS8000-3X Connector Pinout
The LS8000-3E/LS8000-3X cables have a circular 39-pin military connector on
the gauge end and a DB37 connector on the opposite end. The pinouts of
both connectors are listed below. Pins 21 and 23 of the circular connector are
not internally connected. The 39-pin military connector is internally connected
to the LS8000-3 DB25, DB9, and M12 connectors. These connections are
listed in the following table.
LS8000-3E/X Circular Connector
Part No. 93463 / Drawing No. 0921-01561
DB37 Cable Connector Pin Locations
Page 28 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
LS8000-3 Connector Pin
DB25
DB9
M12
DB37
39-Pin
1
1
1
RS232 Transmit (from LS8000-3 to host)
2
2
2
RS232 Receive (from host to LS8000-3)
3
3
3
Phase A True – High Speed Output (RS-422 Drivers)
4
4
4
Phase A False – User Scaleable (5-24V Output)
5
5
5
Phase A False – High Speed Output (RS-422 Drivers)
6
6
6
Phase B True – User Scaleable (5-24V Output)
7
7
7
Phase B True – High Speed Output (RS-422 Drivers)
8
8
8
Phase B False – User Scaleable (5-24V Output)
9
9
9
Phase B False – High Speed Output (RS-422 Drivers)
10
10
10
Material Present Input (5-24V Input)
11
11
11
Signal Ground for Inputs/Outputs/Serial
12
12
12
Power Ground for 24V Input
13
13
13
Power Ground for 24V Input
14
14
14
Measurement Direction Input (5-24V Input)
15
15
15
Phase A True – User Scaleable (5-24V Output)
16
16
16
Laser Interlock (Connect to Signal Ground to Turn On Laser)
17
17
17
Shutter Control (Connect to Signal Ground to Open Shutter)
18
18
18
Length Reset Input (5-24V Input)
19
19
19
Signal Ground for Inputs/Outputs/Serial
20
20
20
User VIN – Voltage input for Isolated Pulse Outputs (5 to 28V
DC). The voltage supplied will be the voltage level of the pulse
outputs supplied by the LS8000-3. If a Voltage is not supplied,
the pulse outputs will be approximately 4.5V.
21
21
22
Signal Ground for Inputs/Outputs/Serial
22
22
24
Index Pulse True - User Scaleable (5-24V Output)
23
23
25
Index Pulse False - User Scaleable (5-24V Output)
24
24
26
24V Fused Input
25
25
27
24V Fused Input
1
26
28
RS422 Transmit + (from LS8000-3 to host)
2
27
29
RS422 Transmit – (from LS8000-3 to host)
3
28
30
RS422 Receive + (from host to LS8000-3)
4
29
31
RS422 Receive – (from host to LS8000-3)
6
30
32
Analog Output Voltage
7
31
33
Analog Output Ground
8
32
34
Measurement Synchronization Input +
9
33
35
Measurement Synchronization Input -
1
34
36
Ethernet TX+
2
35
37
Ethernet RX+
3
36
38
Ethernet TX-
4
37
39
Ethernet RX-
Part No. 93463 / Drawing No. 0921-01561
Description
Page 29 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
LS8000-3E/LS8000-3X Breakaway Cable Pinout
LaserSpeed breakaway cables have 39-pin military connectors on both ends
(male on one end and female on the other) and have pinouts identical to the
standard gauge cable.
39-Pin Male
39-Pin
Female
1
1
RS232 Transmit (from LS8000-3 to host)
2
2
RS232 Receive (from host to LS8000-3)
Description
3
3
Phase A True – High Speed Output (RS-422 Drivers)
4
4
Phase A False – User Scaleable (5-24V Output)
5
5
Phase A False – High Speed Output (RS-422 Drivers)
6
6
Phase B True – User Scaleable (5-24V Output)
7
7
Phase B True – High Speed Output (RS-422 Drivers)
8
8
Phase B False – User Scaleable (5-24V Output)
9
9
Phase B False – High Speed Output (RS-422 Drivers)
10
10
Material Present Input (5-24V Input)
11
11
Signal Ground for Inputs/Outputs/Serial
12
12
Power Ground for 24V Input
13
13
Power Ground for 24V Input
14
14
Measurement Direction Input (5-24V Input)
15
15
Phase A True – User Scaleable (5-24V Output)
16
16
Laser Interlock (Connect to Signal Ground to Turn On Laser)
17
17
Shutter Control (Connect to Signal Ground to Open Shutter)
18
18
Length Reset Input (5-24V Input)
19
19
Signal Ground for Inputs/Outputs/Serial
20
20
User VIN – Voltage input for Isolated Pulse Outputs (5 to 28V DC). The
voltage supplied will be the voltage level of the pulse outputs supplied by the
LS8000-3. If a Voltage is not supplied, the pulse outputs will be
approximately 4.5V.
22
22
Signal Ground for Inputs/Outputs/Serial
24
24
Index Pulse True - User Scaleable (5-24V Output)
25
25
Index Pulse False - User Scaleable (5-24V Output)
26
26
24V Fused Input
27
27
24V Fused Input
28
28
RS422 Transmit + (from LS8000-3 to host)
29
29
RS422 Transmit – (from LS8000-3 to host)
30
30
RS422 Receive + (from host to LS8000-3)
31
31
RS422 Receive – (from host to LS8000-3)
32
32
Analog Output Voltage
33
33
Analog Output Ground
34
34
Measurement Synchronization Input +
35
35
Measurement Synchronization Input -
36
36
Ethernet TX+
37
37
Ethernet RX+
38
38
Ethernet TX-
39
39
Ethernet RX-
Part No. 93463 / Drawing No. 0921-01561
Page 30 of 221
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LaserSpeed 8000-3 Instruction Handbook
Installing the System
Maximizing Performance
The system is now at the point where it can be powered on and the laser
activated so beams are emitted from the front of the gauge. Be sure that the
laser interlock and shutter control circuits are functioning properly.
When Pin 16 is connected to GND (Pin 11, 19, or 21), the laser
becomes operational.
When Pin 17 is connected to GND (Pin 11, 19, or 21), the shutter will
open.
Check the key switch to verify the laser power can be controlled.
Warning:
Note:
Avoid exposure to the beam. Never look directly into the laser
beams, even when wearing protective eyewear. Eye damage
could result.
There may be some delay time between when the system is powered
on, and when the laser comes on. There is a 7 second delay after
power is applied to the laser (key switch on, laser interlock closed)
before the laser turns on. The laser will also not turn on until the
laser temperature controller stabilizes. This may take a few minutes
after power is initially applied. The standoff distance can be verified
by using a business card or sheet of white paper. Both beams can
be viewed and the area where the beams overlap is the active
measurement region. The location where the overlap of the beams is
smallest is the center of the measurement region. This location
corresponds to the standoff distance and is where the beams should
intersect the product.
The configuration and setup of the gauge can be verified and/or changed
using the supplied LaserTrak Software or directly using the serial commands
listed in the Communication Protocol section. Utilizing either one of these
approaches requires a computer with an RS-232 serial port connected to pins
1 and 2 of the 25-pin D-sub connector, or an RS-422 serial port connected to
pins 1-4 of the 9-pin D-sub connector.
Once proper communication is established (see the See the LaserTrak
Software section for help), it is recommended to check the Quality Factor (QF).
QF can be checked using LaserTrak, and viewing the chart recorder screen. If
it is below 15, try to move the product or the gauge slightly (adjust the
standoff) and look for improvements in QF. Once QF is maximized, change
the line speed and look for a corresponding velocity change on the chart
recorder.
Part No. 93463 / Drawing No. 0921-01561
Page 31 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Installing the System
Alternatively, the analog port can be configured to output QF on a 0–1 V scale.
The QF can then be monitored by connecting a panel meter to the analog
output and displaying the voltage. A third method of monitoring the Quality
Factor is to reassign one of the pulse outputs to output the Quality Factor as a
frequency output.
To ensure quality measurements, the laser beams must maintain “contact”
with the product. If the product exhibits large movements during operation, it
should be stabilized with external roller guides. Beta LaserMike offers optional
product guides. Contact your local Beta LaserMike sales representative or the
factory for additional information.
Material Present Adjustment
The intensity of the light reflected from the measurement area can be used to
determine whether material is in the measurement zone or not. To
compensate for varying reflectivity of different materials, it is often necessary
to adjust the threshold of the light detection circuit. This adjustment can be
made with a serial command or by using the LaserTrak software.
Material Present Dropout Time Selection
If you are taking measurements and the Material Present signal is lost for less
than the selected Material Present dropout time, the loss is considered to be a
momentary loss of signal and is ignored. If the signal is lost for longer than the
selected Material Present dropout time, it is considered the end of the material.
This function is very useful when making length measurements on poor
reflecting material.
Validation Time Limit Selection
The validation time limit is used to start making length calculations. Two
conditions are necessary to start a length measurement: Material Present and
valid velocity data. When material enters the measurement volume, the
system determines the time between the Material Present signal and the first
valid data. If the time is less than or equal to the validation time limit
(selectable via LaserTrak or ‘G’ command), then the start-up length-correction
is calculated and a length measurement is initialized. If the time between the
Material Present signal and the first valid velocity data is longer than the
validation limit, then the length calculation is aborted and an error or fault is
sent. This error is sent by setting the length output (either in continuous output
mode or Final Length Mode) to all 9’s.
Part No. 93463 / Drawing No. 0921-01561
Page 32 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Installing the System
Starting/Ending Length Correction
The Validation Time Limit feature is used because the Material Present signal
tells the gauge that material is indeed moving through the measurement zone.
If valid velocity measurements cannot be made, then a small amount of length
will not be accumulated which, in turn, will cause a length error. This may or
may not be a problem, depending on the velocity of the material when it
passes through the measurement volume during this time. The start-up
length-correction is executed to obtain a more accurate length reading. Each
measurement update is divided into small subintervals. When the Material
Present signal is received within an update period, the time it was received is
recorded with a subinterval clock. The length is calculated by using valid
velocity and integrating over the time measured with the subinterval clock. For
example, if the material speed is 10 meters per minute and material enters the
measurement volume in the middle of the 1-millisecond update period, the
subinterval time of 0.5ms is used to calculate length rather than the 1millisecond period. In this case, a 0.083 mm correction would be made. The
same type of correction is made when the material leaves the measurement
volume.
If problems are encountered during any of the installation steps, contact Beta
LaserMike for assistance.
Part No. 93463 / Drawing No. 0921-01561
Page 33 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Interfacing with the LS8000-3
The LS8000-3 has a variety of outputs that allow length and velocity data to be
transmitted to external devices or control algorithms. All of these signals are
located on the connector(s) on the back of the instrument.
LS8000-3 Interface Connectors
The LS8000-3 has three interface connectors:
Connector
Gender
Signals
DB25
Male
Quad Pulses, RS-232, Interlocks,
Power
DB9
Male
RS-422, Analog, Measurement
Synchronization
M12
Female D-Coded
Ethernet
LS8000-3 Rear Panel Connectors
Part No. 93463 / Drawing No. 0921-01561
Page 34 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DB25 Connector
The 25-pin interface port contains pins which deliver the quadrature pulse
outputs, RS-232 serial communications, safety interlock signals, and the 24 V
supply required to power the gauge. Several inputs are available for operation
of the instrument. The connector is a standard 25-Pin male D-Sub connector.
The connector is shown below looking at the gauge's rear panel with the
gauge base plate down.
Pin
Description
1
RS232 Transmit (from LS8000-3 to host)
2
RS232 Receive (from host to LS8000-3)
3
Phase A True – High Speed Output (RS-422 Drivers)
4
Phase A False – User Scaleable (5-24V Output)
5
Phase A False – High Speed Output (RS-422 Drivers)
6
Phase B True – User Scaleable (5-24V Output)
7
Phase B True – High Speed Output (RS-422 Drivers)
8
Phase B False – User Scaleable (5-24V Output)
9
Phase B False – High Speed Output (RS-422 Drivers)
10
Material Present Input (5-24V Input)
11
Signal Ground for Inputs/Outputs/Serial
12
Power Ground for 24V Input
13
Power Ground for 24V Input
14
Measurement Direction Input (5-24V Input)
15
Phase A True – User Scaleable (5-24V Output)
16
Laser Interlock (Connect to Signal Ground to Turn On Laser)
17
Shutter Control (Connect to Signal Ground to Open Shutter)
18
Length Reset Input (5-24V Input)
19
Signal Ground for Inputs/Outputs/Serial
20
User VIN – Voltage input for Isolated Pulse Outputs (5 to 28V DC). The voltage
supplied will be the voltage level of the pulse outputs supplied by the LS8000-3.
If a Voltage is not supplied, the pulse outputs will be approximately 4.5V.
21
Signal Ground for Inputs/Outputs/Serial
22
Index Pulse True - User Scaleable (5-24V Output)
23
Index Pulse False - User Scaleable (5-24V Output)
24
24VDC Fused Input
25
24VDC Fused Input
Part No. 93463 / Drawing No. 0921-01561
Page 35 of 221
Revision A (Sep 2007)
LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
RS-232 Transmit and Receive (Pins 1-2)
The LS8000-3 has an RS-232 serial port which can be used to receive
measurement data, or to configure settings. The LS8000-3 will connect to any
DB9 RS-232 port with a straight-through cable. A null modem is not required.
Connections between the gauge and Industry standard pin outs for RS232
serial are given in the following tables:
RS-232 Serial Pinouts – LS8000-3 to Computer DB9 Connector
Gauge DB25 Pin
Number
Gauge Signal
Description
Computer DB9
Pin Number
Computer Signal
Description
1
RS-232 Transmit
2
RS-232 Receive
2
RS-232 Receive
3
RS-232 Transmit
11, 19, or 21
Signal Ground
5
Signal Ground
RS-232 Serial Pinouts – LS8000-3 to Computer DB25 Connector
Gauge DB25
Pin Number
Gauge Signal
Description
Computer DB25
Pin Number
Computer Signal
Description
1
RS-232 Transmit
3
RS-232 Receive
2
RS-232 Receive
2
RS-232 Transmit
11, 19, or 21
Signal Ground
7
Signal Ground
LaserTrak can be used to communicate with the LS8000-3 over the RS-232,
RS-422, and Ethernet ports. Please see the RS232/RS422 Communication
section for details on the Communication Protocol.
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
High Speed Pulse Output (Pins 3, 5, 7, 9)
This quadrature pulse output is a high-speed RS-422 drive output with an
output rate up to 5MHz. This pulse output uses an RS-422 transceiver to
generate its output signals, and so should be connected to an RS-422
transceiver on the receiving end. These pulse outputs can be connected to a
PLC high speed counter card for fine length resolution and high-speed velocity
measurement.
If you need to convert the differential RS-422 level pulse signals to TTL levels,
Beta LaserMike recommends that you use the following circuit:
+5V
1
+5V
PHASE_A_TRUE
PHASE_A_FALSE
0.1uF
100
8 A
7 B
RO 2
PHASE_A_TTL
MAX3462/MAX3467
or equivalent
6 Z
DI 3
5 Y
GND
4
+5V
1
+5V
PHASE_B_TRUE
PHASE_B_FALSE
0.1uF
100
8 A
7 B
RO 2
PHASE_B_TTL
MAX3462/MAX3467
or equivalent
6 Z
DI 3
5 Y
GND
4
The High Speed Pulse Output can be reconfigured to output several different
status outputs using the High Speed Pulse Output Configuration setting.
See the Configuration Settings section for details.
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User Scaleable Pulse Output (Pins 15, 4, 6, 8)
This pulse output is a user-defined 5-24V voltage output with output rates up
to 250 kHz. The output voltage is derived from the User VIN input. The pulse
outputs are opto-isolated signals with a voltage level determined by the
voltage supplied on Pin 20 (referenced to User-Ground (pin 11, 19, or 21.) An
isolated TTL level signal (3.7-5V) will be supplied if no external voltage is
connected. The output drivers can handle from 5 to 24 VDC. The external
supply requirements are 5–24 volts DC at 300 mA.
The Low Speed Pulse Output can be reconfigured to output several different
status outputs using the Low Speed Pulse Output Configuration setting.
See the Configuration Settings section for details.
Differential vs. Single Ended Pulse Outputs
The LS8000-3 Pulse Outputs are available as both differential and singleended outputs. Using a counter with differential inputs will provide the best
noise immunity, so Beta LaserMike recommends that the outputs are used in
this configuration.
Unfortunately, many counters do not have differential inputs. The pulse
outputs can be used as single ended inputs by connecting Phase A True and
Phase B True to the counter inputs, and connecting the counter ground to
User Ground (pins 11, 19, 21). Leave the Phase A False and Phase B False
outputs unconnected when connecting for single ended output. If extra counts
occur when the line is not moving, or when the LS8000-3 is powered down,
then noise is getting into the cable and triggering the counter. In this case,
using a conversion circuit to convert from differential to single ended outputs
may correct the problem.
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Because the opto-isolator in the circuit has a relatively slow response time
compared with the LaserSpeed's maximum pulse output frequency, when
using this circuit, keep the LaserSpeed's pulse output frequency below 20kHz.
Quadrature Output Phase Relationships
The phase relationship of the quadrature outputs is determined by the
direction of the measured velocity. If the velocity is a positive number, Phase
A rising edge will lead Phase B rising edge, and if the velocity is negative
Phase B will lead Phase A rising edge. For more information on the direction
input, see Operational Inputs.
Typical Full Quadrature Pulse Train with Positive Velocity
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Typical Full Quadrature Pulse Train with Negative Velocity
Note: If excessive or erratic counts are noticed, the main cause is usually
improper termination of the pulse signals. It is recommended you look at the
signals (while connected to the external counter) with an oscilloscope to
determine if excessive ringing or rounding of the pulse train is present. A 100Ω
resistor can be used between true and false signals for differential
output.
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Quadrature Outputs at Extremely Low Pulse Frequencies
Note: This section only applies to the pulse outputs—the length and speed
available over the RS-232, RS-422, and Ethernet ports are not affected.
Pulse Frequency Error Envelope / |%|
The LS8000-3 uses a DDS (Direct Digital Synthesis) circuit to generate the
quadrature outputs. Due to the nature of DDS technology, the frequency
output is not continuously variable, but occurs in steps of about 0.015Hz.
Normally, relative to the output frequency, this step size is so small that it is
impossible to measure. However, if both a very low speed is measured, and a
very low pulse
Pulse Frequency Error vs. Pulse Frequency
8
resolution is used, the
pulse output
7
frequency will be
6
frequency low enough
for the step size to
5
cause noticeable
errors in
4
measurement. The
3
following graph shows
the envelope of the
2
pulse output
1
frequency error as the
pulse output
0
10
10
10
10
10
frequency approaches
Pulse Frequency / Hz
zero.
-2
-1
0
1
2
3
10
The error decreases very rapidly as the frequency increases, becoming
insignificant at pulse output frequencies higher than 15Hz. For this reason, the
pulse output resolution should be set such that the minimum production line
speed produces a pulse output frequency higher than 15Hz.
The following equations can be used to calculate the minimum pulse output
resolution.
Definitions:
R = Minimum Recommended Pulse Output Resolution
X = Minimum Production Linespeed
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Measurement Units
Minimum Pulse Output Resolution
m/s
R=
15 pulse s 15
= pulse m
Xm s
X
ft/s
R=
15 pulse s 15
= pulse ft
X ft s
X
ft/min
R=
15 pulse s 60 s 900
pulse ft
⋅
=
X ft min min
X
m/min
R=
15 pulse s 60 s 900
⋅
=
pulse m
X m min min
X
in/min
R=
15 pulse s 60 s 900
⋅
=
pulse in
X in min min
X
mm/min
R=
15 pulse s 60 s 900
⋅
=
pulse mm
X mm min min
X
mm/s
R=
15 pulse s 15
= pulse mm
X mm s
X
yards/min
R=
15 pulse s 60 s 900
⋅
=
pulse yard
X yard min min
X
yards/s
R=
15 pulse s 15
= pulse yard
X yard s X
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Interfacing with the LS8000-3
Material Present Input (Pin 10)
This is an optically isolated input that can be used to externally control the
Material Present feature of the LS8000-3. The input requires a voltage high (5
to 24V) to activate. The input level should be the same as the voltage
connected to the User VIN input (Pin 20) or 5V if there is nothing connected to
the User VIN input.
Optically Isolated Input Schematic
The LS8000-3 can internally sense Material Present, but there are situations
where it is advantageous to determine this externally. This input can also be
used to start and stop length measurements. This input is typically used in the
following situations:
Continuous Processes such as Cold Mills, where there is always metal
in front of the gauge. The input can be used both to start/stop length
measurements, and to prevent the LS8000-3 from sending speed
data/pulses to the PLC while the line is stopped. The LS8000-3 can be
configured to clear the measured velocity to 0 and hold the pulse
outputs when the Material Present input is in the "Material Not Present"
state.
Discrete Part Length applications can take advantage of this input to
increase the precision of length measurements. Two material
detection gauges (such as optical make/break gauges) can be
mounted on either side of the LS8000-3
This input is functional only when the Material Present Input Mode has been
set to External Mode. Activating this input causes a new measurement to
begin. This resets the current length, and resumes counting at 0.
Deactivating this input causes the current measurement to end, which causes
the length to hold at the current value. If in Final Length Mode, the final length
will be output on the RS-232/RS-422/Ethernet port. The functionality of this
input varies with the Material Present Input Mode. The Material Present Input
Mode is configurable through LaserTrak, or by using the “S” serial command.
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Material Present
Transition Effect
Material Present
Input Mode
High (5-24V)
Low (0V)
Low High
High Low
0 (Internal)
N/A
N/A
No Effect
No Effect
1
No
Yes
(External Active
Low)
("Material Not
Present")
("Material Is
Present")
Ends Current
Measurement
Starts New
Measurement
2
Yes
No
(External Active
High)
("Material Is
Present")
("Material Not
Present")
Starts New
Measurement
Ends Current
Measurement
Note:
If Material Present functionality isn't required, and you want Material
Present to always be on, then set the LS8000-3's Material Present
Input Mode to External Active Low, and leave the Material Present
Input disconnected.
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Example 1:
You are using an external make/break optical switch to begin and end the
measurement. The optical gauge has a smaller spot size than the LS8000-3,
so it will more exactly detect the edge of the product. When the part enters the
measurement area the switch outputs a Low (0V) signal, and when there is a
part in the measurement area, the switch outputs a High (24V) signal. So,
when the part enters the measurement area, a Low High transition occurs,
and when the part exits the measurement area, a High Low transition occurs.
This configuration requires that you set the Material Present Input Mode to 2
(External/Active High). When the part enters the measurement area
(Low High) a measurement begins, and when the part exits the
measurement area (High Low) the measurement ends. If the LS8000-3 is in
Final Length Mode, the elapsed length will be transmitted over the serial port
when the part exits the measurement area.
Optical Make/Break
Sensor Fibers
Optical Make/Break
Sensor Fibers
Part to be measured
Part to be measured
Line movement
Line movement
Part Breaks Sensor Beam
Part Clears Sensor Beam
Material Present Input
Material Present Input
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Connecting Material Present Switches
This section shows how to connect a commonly used Material Present
detector.
Single Switch Configuration
The D10 is a make/break optical switch. When connecting one optical switch,
it should be aligned with the LS8000-3's measurement spot. This
configuration can be used in order to more precisely detect the edge of the
material. The fiber optic elements are much smaller than the LS8000-3 spot
size, so repeatability is improved by more consistent edge detection.
Banner Engineering
D10 Expert Fiber-Optic Sensor
Model D10DPFP(Q)
Material Present Input
+12-24VDC Power
BROWN
_
BLUE
WHITE
1
BLACK
2
GRAY
PINK
Material Present (Pin 10)
Signal Ground
(Pin 11, 19, 21)
Teach
Gate
Light or Dark Operate
The switch can be configured for either Light Operate or Dark Operate. When
in Light Operate mode, the switch will output a voltage high when there is not
an object blocking the beam, and when in Dark Operate mode, the switch will
output a voltage high when there is an object blocking the beam. Also, the
switch should be configured for Super High Speed (SHS) mode in order to
minimize latency.
Optical Switch Mode
LS8000-3 Material Present Mode
Light Operate
External Active Low
Dark Operate
External Active High
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When the product enters the measurement area and triggers the switch, the
Material Present signal should activate. This causes the LS8000-3 to start
counting length at 0. When the product leaves the measurement area and the
Material Present signal deactivates, the LS8000-3 will calculate the final length
and the measurement is complete. If in Final Length mode, the LS8000-3 will
transmit the Final Length over the serial/Ethernet ports.
Dual Switch Configuration
Two optical switches can be connected in parallel in order to further increase
the precision of part-length measurements. This configuration is typically used
on discrete part measurements that are long and have a very tight length
specification. The LS8000-3 repeatability specification is ±0.02% of the
measured length.
Example:
A cut-to-length application has a product that varies from 14 ft. (4.27m) to 16
ft. (4.88m) in length, and has a tolerance of ±1/8 inch (±0.125in./±3.2 mm.)
The LS8000-3 repeatability specification for a 16 ft. length is a little more than
±1/32 inch (±0.97mm.) While this is better than the length specification, the
measurement variation is only about ¼ the length specification. Ideally, a
measurement instrument's variation should be 10X smaller than the
specification it is required to measure.
In order to improve repeatability, the LS8000-3's measured length can be
reduced by using two optical switches to gate the LS8000-3's measurements.
The LS8000-3 will only measure while the product blocks both optical
switches. In this case, since the minimum part length is 14 ft (4.27m), the
switches could be placed 13 ft (3.96m) apart. This will reduce the length that
the LS8000-3 measures to between 1 and 3 feet. The repeatability will then
be ±0.02% of 1-3ft instead of ±0.02% of 12-16ft. The new repeatability would
then be ±0.0072 inch (0.18mm.) Because the distance between the two
switches is fixed, this value can be added to each length measurement that
the LS8000-3 produces using the Length Reset Value Setting ($R
configuration setting.)
The optical switches should be arranged and wired as shown below:
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Exit Sensor Beam
Entrance Sensor Beam
Part to be measured
Lin e movement
Banner Engineering
D10 Expert Fiber-Optic Sensor
Model D10DPFP(Q)
+12-24VDC Power
_
BROWN
BLUE
WHITE
1
BLACK
2
GRAY
Signal Ground
Teach
PINK
Material Present Input
Mode: External Active Low
Gate
Light Operate
Material Present (Pin 10)
Signal Ground
(Pin 11, 19, 21)
BROWN
BLUE
WHITE
1
BLACK
2
GRAY
PINK
Teach
Gate
Light Operate
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Signal Grounds (Pins 11, 19, 21)
Multiple ground inputs have been supplied for the pulse outputs (High Speed,
User Scaleable, and Index) to provide good references for cabling.
Additionally, two power input pins (24 and 25, 24 VDC) and power input
ground pins (12 and 13) have been provided for cabling ease.
The Signal Grounds (pins 11, 19, and 21) are internally isolated from the
Power Ground (pins 12, 13). The Signal Ground pins are internally connected.
All input and output signals should be referenced to the Signal Grounds, not
the Power Ground. The Power Ground and the Signal Ground can be tied
together if isolation is not required for the application.
Isolation Required between Power Supply and I/O
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Isolation Not Required between Power Supply and I/O
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Measurement Direction Input (Pin 14)
This is an optically isolated input that can be used to externally control the
Measurement Direction feature of the LS8000-3. The input requires a voltage
high (5 to 24V) to activate. The input level should be the same as the voltage
connected to the User VIN input (Pin 20) or 5V if there is nothing connected to
the User VIN input.
Optically Isolated Input Schematic
There are two ways to reverse the direction of the LS8000-3's measurements:
1. Modify the Direction Inversion setting with LaserTrak (or using the "A"
serial command)
2. Connect 5-24V to the Measurement Direction Input
Changing the Direction Inversion setting with LaserTrak to invert the direction has
the same effect as changing the state of this input.
Note:
If the Direction Inversion setting is set to "Reverse +/- Directions" and
the Measurement Direction Input is high, they will cancel each other
out and the LS8000-3 will operate in the default manner.
Direction
Inversion Setting
Measurement Direction Input
LS8000-3 Direction
Normal
Low (Disconnected or 0v)
Normal
Normal
High (5-24V)
Reversed
Reversed
Low (Disconnected or 0v)
Reversed
Reversed
High (5-24V)
Normal
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Laser Interlock (Pin 16)
The Laser Interlock input will switch off the laser power when the connection to
ground is broken. This is commonly used with external switches for laser
safety. When the interlock pin is connected to ground, the laser is operational.
When the interlock circuit is opened (break the connection to ground), power
to the laser is switched off. The power to the rest of the LS8000-3 is not
affected.
Note:
To enable laser operation, connect the laser interlock pin (Pin 16) to
ground (Pin 11, 19, or 21). There is a delay of several seconds from
the time the Laser On light turns on to the time that laser radiation is
emitted.
+5V
Laser Interlock (Pin 16)
Safety Interlock Switch
(Close to Turn On Laser)
Signal Ground
(Pin 11, 19, 21)
GND
Laser Interlock Input Circuit
Panel Cutout
for Keyswitch
Laser Off
Laser On
0.50in
[12.7mm]
0.42in
[10.7mm]
Laser Interlock Key switch Connection
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Shutter Control (Pin 17)
All Class 3B laser products are required to have a shutter to terminate the
laser beams before exiting the product. The LS8000-3 uses a spring-loaded
rotary solenoid as a laser shutter. The spring-loaded action ensures that when
power is not applied to the shutter circuit, the shutter remains closed.
Note:
To open the shutter, connect the shutter control pin (Pin 17) to
ground (Pin 11, 19, or 21).
Panel Cutout
for Keyswitch
Shutter Closed
Shutter Open
0.50in
[12.7mm]
0.42in
[10.7mm]
Shutter Interlock Examples
Length Reset Input (Pin 18)
This is an optically isolated input that can be used to externally control the
Length Reset feature of the LS8000-3. The input requires a voltage high (5 to
24V) to activate. The input level should be the same as the voltage connected
to the User VIN input (Pin 20) or 5V if there is nothing connected to the User
VIN input.
The Length Reset input is used to reset the current length count to zero. This
is the length that is reported over RS-232, RS-422, and Ethernet. The pulse
outputs are not affected by this input.
This can also be accomplished through the "R" command of the serial
command set (see the Communication Protocol section) for more information
on interfacing with serial commands.
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Length Reset Input Circuit
The Length Reset Input Action configuration setting affects how this input
resets the length. The input can be configured to reset the length on level and
edges. See the Length Reset Input Action command description in the
Configuration Settings section for details.
User VIN (Pin 20)
Voltage input for Isolated Pulse Outputs, and the Index Pulse Output.
Connecting a voltage from 5-28VDC to this input allows you to control the
pulse amplitude of the LS8000-3 Scaleable Pulse Outputs (Pins 15, 5, 6, 8),
and the Index Pulse Output (Pins 22 and 23.) The voltage supplied will be the
voltage level of the pulse outputs supplied by the LS8000-3. If a voltage is not
supplied, the pulse outputs will be approximately 4.5V.
Internal Isolated +5V
User V IN (Pin 20)
Pulse Output
Pulse True
User V IN
GND
Pulse False
User V IN
GND
Signal Ground
(Pins 11, 19, 21)
User VIN Schematic
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Index (Printer) Pulse Output (Pins 22-23)
Also referred to as a Once-Per-Rev (OPR) pulse, this output can be configured
to output pulses at specified length intervals. This output can be used to
control a cutter or a printer.
For example, if you use LaserTrak to set the “Index Pulse Every X m” setting
to 10m, the gauge would output a single pulse every 10m of product
movement.
The Index pulse will only trigger when the line is moving in the (+) direction. If
the Index Pulse triggers at a certain length, and then the line backs up and
passes that point again, the Index Pulse will not be repeated.
The Index Pulse is asserted for a configurable amount of time. This time can
be configured by changing the Index Pulse Length setting. See the
Configuration Settings section for details.
Example:
Index Pulse Length = 100ms
Index Pulse Interval = 10m
Index Pulse Output Example
The Index Pulse Output can be reconfigured to output several different status
outputs using the Auxiliary Digital Output Configuration setting. See the
Configuration Settings section for details.
+24VDC Power Input (Pins 24-25) and Power Grounds (Pins 12-13)
Two Power Input pins and two Power Ground pins are supplied to reduce
voltage drop in long cables. Please see the Connecting Power to the Gauge
section and Appendix D for details concerning power wiring. Pins 24 and 25
and pins 12 and 13 are internally connected in the LS8000-3.
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DB9 Connector
The 9-pin interface port contains the RS-422 interface pins for high speed,
long distance communication with the LS8000-3, the Analog Output, and the
Measurement Synchronization Input pins. The connector is a standard 9-Pin
male D-Sub connector. It is shown below looking at the gauge's rear panel
with the gauge baseplate down.
Pin
Description
1
RS-422 Transmit + (from LS8000-3 to host)
2
RS-422 Transmit – (from LS8000-3 to host)
3
RS-422 Receive + (from host to LS8000-3)
4
RS-422 Receive – (from host to LS8000-3)
5
Signal Ground for Inputs/Outputs/Serial
6
Analog Output Voltage
7
Analog Output Ground
8
Measurement Synchronization Input +
9
Measurement Synchronization Input -
RS-422 Transmit (+/-) and Receive (+/-) (Pins 1-4)
These pins comprise the RS-422 interface port. The RS-422 communications
port can be used at speeds up to 230kBaud over long distances. The
transmission cable should be a shielded, twisted pair cable. RS-422 uses
balanced pairs for both transmission and reception, so the +/- lines for the
Transmit and Receive pairs should be paired as shown. To minimize
reflections, the transmit lines from the gauge should be terminated with a
resistor matching the characteristic impedance of the cable (100Ω) as shown
below. The cable shield or drain wire should be attached to the chassis
ground at both ends of the cable. At the gauge end, a DB9 connector with a
metal backshell should be used, and the cable shield should be terminated to
the backshell. The cable jacket should be suitable for the environment to
which the cable will be exposed.
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Cable Jacket
Cable Shield
Pin 1 (TX+)
RX+
Receive
100Ω
Pin 2 (TX-)
RS-422 Cable
RX-
Pin 3 (RX+)
Shielded,
Two Twisted 100Ω Pairs
TX+
Transmit
Pin 4 (RX-)
TX-
Drain Wire/Shield
Computer/PLC
RS-422 Serial Pinouts
Gauge DB9
Pin Number
Gauge Signal
Description
Computer Pin
Number
Computer Signal
Description
1
RS422 Transmit +
varies
RS422 Receive + (B)
2
RS422 Transmit -
varies
RS422 Receive – (A)
3
RS422 Receive +
varies
RS422 Transmit + (B)
4
RS422 Receive -
varies
RS422 Transmit – (A)
5
Signal Ground
varies
Signal Ground
The computer RS-422 pinout can vary with the RS-422 card used. The signal
descriptions listed above should be matched to the signal descriptions listed in
the documentation provided with the RS-422 adapter.
Analog Output Voltage/Ground (Pins 6-7)
Analog Output Specifications
Voltage Range
0-2V
Resolution
12-bit
Minimum ∆V (Step Size)
0.5mV
Load
1kΩ minimum
Filtering
0.1µF Capacitor
Recommended across
Output to Signal Ground
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Interfacing with the LS8000-3
Analog speed data can be obtained in a 0–2 V format. An optional selectable
voltage/current output module which will convert the 0–2 V signal supplied by
the gauge to all of the common voltage/current levels is available. The analog
output indicates speed but not direction.
There are two configuration settings that affect the operation of the analog
output. The Analog Zero Scale Velocity sets the speed where the analog
output reaches 0V. The Analog Full Scale Velocity sets the speed where the
analog output reaches 2V. At speeds between these two settings, the analog
output increases linearly as the speed increases from the Analog Zero Scale
Velocity to the Analog Full Scale Velocity.
Example: If the Analog Zero Scale Velocity were set to 30 m/min, and the
Analog Full Scale Velocity were set to 100 m/min, the analog output would
behave as shown in the following figure.
Analog Output vs Measured Velocity with VZS = 30 and VFS = 100
2
1.8
1.6
Analog Output / Volts
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
10
20
30
40
50
60 70 80 90
Measured Velocity
100 110 120 130 140 150
The LS8000's measured speed can be calculated from the analog output
voltage with the following equation:
(VFS − VZS ) + V
⎧
0V < Voltage < 2V
ZS
⎪Voltage ×
2
⎪
Speed = ⎨
≤ VZS
when Voltage = 0V
⎪
≥ VFS
Voltage = 2V
⎪⎩
where:
VFS = Analog Full Scale Velocity
VZS = Analog Zero Scale Velocity
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Voltage = Measured Analog Output Voltage
Note that when the output voltage is at either limit, the exact speed cannot be
determined. If the exact speed is always required, be sure to set the Full
Scale Velocity setting to a value higher than what can normally be
encountered.
When the Analog Output is configured to
output Quality Factor, the Quality Factor
can be calculated with the following
equation:
Analog Output vs Quality Factor
1
0.9
0.8
0.7
Analog Output / Volts
The analog port can also be configured to
output the QF on a 0–1 V scale by setting
the Full Scale Velocity to zero using a serial
command or LaserTrak software. In this
case, the analog output reads 0V when
the QF is 0 and 1V when the QF is 15.
0.6
0.5
0.4
0.3
0.2
0.1
0
QualityFactor = Voltage × 15
0
2
4
6
8
Quality Factor
10
12
14
16
When connecting to the Analog Output Voltage, the Analog Output Voltage
and Analog Output Ground should be on a separate twisted pair inside of a
shielded cable. Connect a 0.1µF capacitor across the load end of the cable
(the end opposite the gauge) to reduce noise caused by other signals in the
cable. See the following wiring example:
Gauge DB9
Cable Jacket
Cable Shield
Analog Output Cable
Analog Output+ (Pin 6)
0.1 µF
Shielded, Twisted Pair
Analog Output Ground (Pin 7)
Terminate Shield/Drain Wire to backshell of DB9 connector
1000 Ω
minimum
Terminate Shield/Drain Wire to
Chassis Ground
Analog Output Wiring Example
Measurement Synchronization Input (Pins 8-9)
In many AGC applications, particularly mass flow control, it is desirable to
synchronize the sampling periods of all gauges in the system. This is done by
connecting an LS8000-3 I/O Module to each LS8000-3 in the system (for
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
elongation), or by connecting the LS8000-3 gauges together in a daisy-chain
configuration (for synchronization only.)
Using the LS8000-3 I/O Module (one I/O Module per LS8000-3) easily allows
multi-channel synchronization and elongation measurement. The I/O Module
has rear panel Sync connectors that can be connected to other I/O Modules
for synchronization. For details about synchronizing multiple gauges using the
LS8000-3 I/O Module, refer to the LS8000-3 I/O Module Instruction Handbook.
For details about how to connect multiple LaserSpeed gauges together for
synchronization, see the Gauge-Gauge Synchronization section.
When two or more systems are synchronized, the speed data is synchronous,
although there will be minor variations in the actual output times from one I/O
Module to the next. This means that all processors sample over exactly the
same time period, but due to minute differences in internal processing times,
the output from each processor may arrive a few microseconds earlier or later
than the outputs of the other I/O Modules.
M12 Ethernet Connector
The LS8000-3 Ethernet Connector is a Female, M12, D-Coded Ethernet
connector compatible with most industrial Ethernet patch cables.
LS8000-3 M12 Connector Pinout
Pin
Description
1
Ethernet TX+ (from LS8000-3 to host/switch)
2
Ethernet RX+ (from host/switch to LS8000-3)
3
Ethernet TX- (from LS8000-3 to host/switch)
4
Ethernet RX- (from host/switch to LS8000-3)
Beta LaserMike offers a variety of Ethernet cables that can be used to connect
the LS8000-3 to any RJ-45 network jack. Please see the Ethernet Cables
section for a list. To connect directly to a computer, without using an Ethernet
hub or switch, you must use a crossover patch cable.
Please see the Ethernet Communication section for details about the LS80003's Ethernet communication protocol.
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
LS8000-3 Interface Cables
DB25 Cables
These cables connect the LS8000-3 25-Pin connector, and are available in
lengths from 3 to 50m. These cables are compatible with all LS4000, LS8000,
and LS8000-3 LaserSpeed gauges. For cables compatible with the E/X
models, see the Heavy Industrial Cables section.
Part Number
Length
Cable Description
240211-3M
3m (9.8 ft)
CABLE GAUGE-DB25/DB25 3M
240211-10M
10m (32.8 ft)
CABLE GAUGE-DB25/DB25 10M
240211-20M
20m (65.6 ft)
CABLE GAUGE-DB25/DB25 20M
240211-30M
30m (98.4 ft)
CABLE GAUGE-DB25/DB25 30M
240211-50M
50m (164 ft)
CABLE GAUGE-DB25/DB25 50M
Ethernet Cables
These cables connect the LS8000-3 M12 Ethernet connector to any standard
Ethernet RJ45 connection.
Part Number
1
Length
Cable Description
62458
2m (6.6 ft)
CABLE XOVER CAT5E M12 MALE TO RJ45 2M
62410-3M
3m (9.8 ft)
CABLE STRANDED CAT5E M12 MALE TO RJ45 - 3M
62410-10M
10m (32.8 ft)
CABLE STRANDED CAT5E M12 MALE TO RJ45 - 10M
62411-20M
20m (65.6 ft)
CABLE SOLID CAT5E M12 MALE TO RJ45 - 20M
62411-30M
30m (98.4 ft)
CABLE SOLID CAT5E M12 MALE TO RJ45 - 30M
62411-50M
50m (164 ft)
CABLE SOLID CAT5E M12 MALE TO RJ45 - 50M
62411-100M
100m (328 ft)
CABLE SOLID CAT5E M12 MALE TO RJ45 - 100M
1
This is a crossover cable that can be used to connect the LS9000
directly to a PC. This cable should not be used if connecting to a
hub/switch.
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Interfacing with the LS8000-3
Heavy Industrial Cables
LaserSpeed heavy industrial cables are designed for use in heavy industrial
environments where high temperatures and heavy coolant spray are
encountered. They have an extremely durable outer jacket, and are
impervious to industrial lubricants, coolants, and solvents.
Never pull the cable by the connector. Always attach the pulling cable to
the cable itself. Pulling the cable by the connector may damage the connector
pins. The circular connector has a protective end cap that should be screwed
over the cable pins when pulling through conduit, or any time the cable is
disconnected from the LS8000.
The cable must be screwed onto the LS8000-3 connector until it fully seated—
the yellow stripe on the LS8000-3 connector is not visible when the cable is
fully tightened.
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Part Number
Length
Cable Description
85277-10M
10m (32.8 ft)
CABLE LS3 E/X HSNG CIR/DB37 10M 90ºC
85277-25M
25m (82 ft)
CABLE LS3 E/X HSNG CIR/DB37 25M 90ºC
85277-50M
50m (164 ft)
CABLE LS3 E/X HSNG CIR/DB37 50M 90ºC
85277-75M
75m (246 ft)
CABLE LS3 E/X HSNG CIR/DB37 75M 90ºC
85277-100M
100m (328 ft)
CABLE LS3 E/X HSNG CIR/DB37 100M 90ºC
85277-110M
110m (361 ft)
CABLE LS3 E/X HSNG CIR/DB37 110M 90ºC
85277-120M
120m (394 ft)
CABLE LS3 E/X HSNG CIR/DB37 120M 90ºC
85277-130M
130m (427 ft)
CABLE LS3 E/X HSNG CIR/DB37 130M 90ºC
85277-140M
140m (459 ft)
CABLE LS3 E/X HSNG CIR/DB37 140M 90ºC
85277-150M
150m (492 ft)
CABLE LS3 E/X HSNG CIR/DB37 150M 90ºC
85277-160M
160m (525 ft)
CABLE LS3 E/X HSNG CIR/DB37 160M 90ºC
85277-170M
170m (558 ft)
CABLE LS3 E/X HSNG CIR/DB37 170M 90ºC
85277-180M
180m (591 ft)
CABLE LS3 E/X HSNG CIR/DB37 180M 90ºC
85277-190M
190m (623 ft)
CABLE LS3 E/X HSNG CIR/DB37 190M 90ºC
85277-200M
200m (656 ft)
CABLE LS3 E/X HSNG CIR/DB37 200M 90ºC
Breakaway Cables
For mills where cobbles, fires, or other conditions may damage the
LaserSpeed cable, a breakaway cable may be appropriate. If the breakaway
cable is damaged, it can be replaced without having to replace the entire
cable.
The LS8000-3 has both a high temperature and low temperature breakaway
cable. The low temperature cable is rated to 90ºC, and is made of the same
construction as the Heavy Industrial Cable. The high temperature cable is
rated to 250ºC, and constructed of special high temperature conductors and
insulation.
Part Number
Length
85305
10m (32.8 ft)
CABLE LS3 E/X LO TEMP BRKAWAY 10M 90ºC
85281
10m (32.8 ft)
CABLE LS3 E/X HIGH TEMP BRKAWAY 10M 250ºC
Part No. 93463 / Drawing No. 0921-01561
Cable Description
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Low Temperature Breakaway Cable
High Temperature Breakaway Cable
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Breakaway Cable Mounting Bracket
Beta LaserMike Part #: 2306588
The breakaway cable end fastens to this heavy duty bracket to provide support
for the connection between the breakaway cable and the main cable.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
LS8000-3 Breakout Assemblies
For easy interfacing, Beta LaserMike offers several different I/O breakout kits
that connect directly to LaserSpeed cables. These interface blocks are DIN
rail mountable, or can be bolted into a cabinet. Four M5x16 hex head screws
are included.
There are several different options available. The DB25 versions are
compatible with standard LS8000-3 gauges, and the DB37 versions are
compatible with the LS8000-3E/X gauges. Powered and unpowered versions
of both configurations are available. Powered versions have a 24VDC 100W
universal power supply with an input voltage range of 85-264VAC at 47-63Hz.
The power supply can be connected to a standard IEC 320 power cord.
Model
Description
85328
ASSY BREAKOUT DB25
LASERSPEED
LS8000-3
85329
ASSY BREAKOUT DB25
LASERSPEED POWERED
LS8000-3
85321
ASSY BREAKOUT DB37
LASERSPEED
LS8000-3E/X
85322
ASSY BREAKOUT DB37
ETHERNET LASERSPEED
LS8000-3E/X
85323
ASSY BREAKOUT DB37
LASERSPEED POWERED
LS8000-3E/X
85324
ASSY BREAKOUT DB37
ETHERNET LASERSPEED
POWERED
LS8000-3E/X
Part No. 93463 / Drawing No. 0921-01561
Compatible With
Base Size
4" x 9"
(102 x 229mm)
4" x 9"
(102 x 229mm)
4" x 12.5"
(102 x 318 mm)
4" x 12.5"
(102 x 318 mm)
4" x 12.5"
(102 x 318 mm)
4" x 12.5"
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(102 x 318 mm)
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DB25 Breakout Assemblies
Mounting Dimensions for: 85328, 85329
Part Number 85329 is shown in the drawing below. The mounting dimensions
for 85328 and 85329 are identical, with the exception of the height. Part
Number 85328 does not have a power supply, so it has a lower profile. Wiring
is not shown in the drawing.
Part
Number
Interface/Feature
LS8000-3 (DB25F)
RS-232 (DB9F)
Power Supply
85328
85329
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DB37 Breakout Assemblies
Mounting Dimensions for: 85321, 85322, 85323, 85324
Part Number 85324 is shown in the drawing below. The mounting dimensions
for 85321, 85322, 85323, and 85324 are identical, with the exception of the
height. Part Numbers 85321 and 85322 do not have power supplies, so they
have lower profiles.
2
Part
Number
Interface/Feature
LS8000-3E/X
(DB37F)
RS-232
(DB9F)
RS-422
(DB9M)
Ethernet
(RJ45)
Power
Supply
85321
85322
85323
85324
2
In this table, an 'F' suffix indicates a Female connector, and an 'M'
suffix indicates a Male connector.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Breakout Assembly Pinouts
The pinouts for the breakout assembly connectors are listed below. Because
the LaserSpeed cable connects directly to the DB25/DB37 cable, the pinout for
this connector is identical to the gauge cable pinout. See the Connecting to
Outputs section for details.
RS-232 Connector
This Female DB9 connector can be connected to any PC serial port using a
straight-through serial cable with a male connector on one end and a female
connector on the other end. A null modem is not required.
Pin
Description
DB25/DB37 Pin
2
RS-232 Transmit (from LS8000-3 to host)
1
3
RS-232 Receive (from host to LS8000-3)
2
5
Signal Ground
19
RS-422 Connector
This Male DB9 connector can be connected to an RS-422 input on a PLC, or
an RS-422 converter connected to a PC. Because there is no standard pinout
for RS-422, you may wish to rewire this terminal block to match your cable.
Pin
Description
DB37 Pin
1
RS422 Transmit + (from LS8000-3 to host)
26
2
RS422 Transmit – (from LS8000-3 to host)
27
3
RS422 Receive + (from host to LS8000-3)
28
4
RS422 Receive – (from host to LS8000-3)
29
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
Ethernet Connector
This RJ45 connector can be connected to any Ethernet hub or switch. A
crossover cable is not required when connecting to a hub or switch, but is
required if connecting directly to a PC.
Pin
Description
DB37 Pin
1
Ethernet TX+
34
3
Ethernet TX-
35
2
Ethernet RX+
36
6
Ethernet RX-
37
Breakout Assembly A/C Power Connector
The powered versions of the breakout assembly have a "kettle plug" style
power connector (IEC 320 sheets C13-14.) This power connector is the most
common in the world, and can be used with most line cords.
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Application Interfaces
Light Stack Interface
The LS8000-3 User Scaleable Pulse Outputs and Index Pulse output can be
reconfigured and connected to a light stack in order to indicate the current
state of the laser in order to warn people in the area of laser radiation. The
pulse outputs can be reconfigured into a light stack interface by setting the
following settings:
Setting
Value
Command
Index Pulse Output Function
Light Stack (Green)
#9
User Scaleable Pulse Output
Configuration
Light Stack (Yellow/Red)
$L9
The outputs can then be connected to solid state relays in order to drive a light
stack as shown below. This will provide a contact closure for each lamp. The
maximum current that can be driven by this interface will depend on the
selected relay.
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Interfacing with the LS8000-3
The LS8000-3 operates the light stack in the following manner:
Light Stack
Lamp
Laser
Radiation
Emitted?
Meaning
Green
Laser is Off
No
Yellow
Laser is On
Shutter is Closed
No
Laser is On
Shutter is Open
Yes
Red
The light stack should be placed in a conspicuous location near the gauge so
that anyone who may be exposed to laser radiation can easily look at the light
stack to see gauge is emitting laser radiation. The gauge also has an indicator
light labelled "LASER ON" that indicates when the laser is turned on.
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
Thermostat Interface
In order to extend the ambient temperature range of LaserSpeed gauges, you
can provide water or air cooling/heating. This is often accomplished by
connecting the gauge to a recirculating heater/chiller, but can also be
accomplished by using the gauge's thermostat output. LaserSpeed gauges
monitor their internal temperatures, and can provide an output indicating when
cooling/heating is required. This output can be connected to a valve or a PLC
in order to control the flow of coolant. The thermostat output is available as an
alternate configuration of the Index Pulse, the High Speed Pulse Output
(Phase B), and the User Scaleable Pulse Output (Phase B.)
Output
Index Pulse
High Speed
Pulse
User
Scaleable
Pulse
How To Configure
Set Index Pulse Output Function to
Thermostat Output
Set High Speed Pulse Output
Configuration to either:
System Ready/Thermostat Output or
Valid/Thermostat Output
Set User Scaleable Pulse Output
Configuration to either:
System Ready/Thermostat Output or
Valid/Thermostat Output
Output Pin
DB25/DB37 pin 22
Voltage Level
5-24V, depending on
User Input Voltage
DB25/DB37 pin 7
&
DB25/DB37 pin 9
DB25/DB37 pin 6
RS-422 Output
(2V-5V Differential)
5-24V, depending on
User Input Voltage
The Thermostat Output turns on (voltage high) when the internal gauge
temperature rises above 40ºC, and turns off when the internal gauge
decreases below 35ºC.
The output can
be connected to
an electrically
operated valve
as shown.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Index Pulse & Length Thresholds
The Index Pulse and Length Thresholds can be used to control a cutter and
provide pre-cut queues to the process control system so, for example, the line
can be slowed prior to a cut. The Index Pulse is configured to trigger at a
specified length interval, and the Length Thresholds can be configured to
trigger at preset lengths before the Index Pulse triggers. The Length
Threshold outputs remain high until the Index Pulse triggers and resets. The
index pulse automatically resets the Length Threshold outputs—no external
wiring is required.
Another way to reset these outputs is to set the Index Pulse Setting to a high
value and reset the threshold outputs by asserting the Length Reset Input.
The Length Thresholds are available as an alternate output function of the
User Scaleable Pulse Output.
Example:
Setting
Index Pulse Setting
Index Pulse Length
Length Threshold A
Length Threshold B
Part No. 93463 / Drawing No. 0921-01561
Value
100 m
100 ms
90 m
80 m
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Gauge-Gauge Synchronization
LaserSpeed LS9000 and LS8000 gauges can be synchronized so that their
sampling periods are synchronized, and so they update their outputs at the
same time.
The simplest method for synchronizing gauges is to connect each gauge to a
LaserSpeed I/O module and connect the I/O Modules' synchronization
connects together. The I/O Modules will automatically synchronize the gauges
and calculate elongation, which can be output in a variety of different ways.
Another method for synchronization is to reconfigure the gauges' High Speed
Pulse Output ports and connect the gauges together in a daisy-chain
configuration. The gauges will synchronize to each other, but will not calculate
elongation. If an elongation calculation is required, the RS232, RS422, or
Ethernet output data from each gauge must be collected and calculated in an
external PLC or computer.
To configure the High Speed Pulse Output to output the synchronization
signal, use LaserTrak to set the High Speed Pulse Config option "A=Pulse
Phase A, B=Sync Out". This will replace the pulse output phase B with the
synchronization output, and will leave Phase A available for connection to a
counter.
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
Part No. 93463 / Drawing No. 0921-01561
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Interfacing with the LS8000-3
Banner D10 Through Beam Switch
Single through beam
Signal
D10
LaserSpeed
Power (+12 v to +24v)
Brown
N/A
Material Present
White
10
Signal Ground
Blue
11
Notes:
Use with a LaserSpeed 4000-2, 8000-2, 8000-3 or 9000-3
See the Connecting Material Present Switches section for wiring
Program the LaserSpeed for material present “external – active high”
Program the D10 module for Super High Speed output
You may have to teach the D10 light and dark levels (refer to D10
manual)
Dual through beam (uses two D10 modules)
Signal
D10
LaserSpeed
Power (+12 v to +24v)
Brown
N/A
Material Present
Black
10
Signal Ground
Blue
11
Notes:
Use with a LaserSpeed 4000-2, 8000-2, 8000-3 or 9000-3
See the Connecting Material Present Switches section for wiring
Program the D10 module for Super High Speed output
Program the LaserSpeed for material present “external – active low”
You may have to teach the D10 light and dark levels (refer to D10
manual)
The distance between the switch pairs needs to be added to the length
reported by the LaserSpeed
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Banner Retroflective Switch (Picodot)
Pinout
Signal
PD45
LaserSpeed
Power (+10 v to +30v)
Brown
See below
Material Present
White
10
Signal Ground
Blue
11
Pullup (4.7K)
White (LS pin 10)
24
Laser enable
Grey
11
Notes:
Use with a LaserSpeed 4000-2, 8000-2, 8000-3 or 9000-3
Program the LaserSpeed for material present “external – active high”
You can power the banner switch from the LaserSpeed power supply
(pin 25) but you need to connect pins 11 and 12 on the Laserspeed
breakout together.
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DataPro 1000
Quadrature Pinout
Signal
DP1K
LaserSpeed
Signal A
36
15
Signal A-
34
4
Signal B
32
6
Signal B-
30
8
Signal Ground
25
11
User Voltage
27
20
Pulsed Pinout
Signal
DP1K
LaserSpeed
Signal A
28
15
Signal A-
26
4
Signal Ground
25
11
User Voltage
27
20
Notes:
Configure the LaserSpeed pulse per unit length
Remove jumpers JL6, JL7, JL10 and JL11 if required in differentialinput configuration
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DataPro 3000
Pinout
Signal
DP3K DB25
LaserSpeed
Signal A
11
15
Signal Ground
24
11
User Voltage
1
20
Notes
Configure the LaserSpeed pulse per unit length
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DataPro 5000 BB
Quadrature Pinout
Signal
DP5K
LaserSpeed
Signal A
22
15
Signal A-
23
4
Signal B
24
6
Signal B-
25
8
Signal Ground
28
11
User Voltage
29
20
Signal
DP5K
LaserSpeed
Signal A
5
15
Signal A-
23
4
Signal Ground
28
11
User Voltage
29
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length
Part No. 93463 / Drawing No. 0921-01561
Page 81 of 221
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DataPro 5000 DN
Quadrature Pinout
Signal
DP5K
LaserSpeed
Signal A
J1-1
15
Signal A-
J1-2
4
Signal B
J2-1
6
Signal B-
J2-2
8
Signal Ground
12
11
User Voltage
25
20
Pulsed Pinout
Signal
DP5K
LaserSpeed
Signal A
J3-1
15
Signal A-
J3-2
4
Signal Ground
12
11
User Voltage
25
20
Notes:
Configure the LaserSpeed pulse per unit length
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
DataPro 5000 DN – Beckhoff I/O
Quadrature Pinout
Signal
KL5101-A
LaserSpeed
Signal A
(KL5101-A) 1
15
Signal A-
(KL5101-A) 5
4
Signal B
(KL5101-A) 2
6
Signal B-
(KL5101-A) 6
8
Signal Ground
(DP5K I/O) 12
11
User Voltage
(DP5K I/O) 25
20
Signal
KL5111-A
LaserSpeed
Signal A
(KL5111-A) 5
15
Signal Ground
(DP5K I/O) 12
11
User Voltage
(DP5K I/O) 25
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length
Part No. 93463 / Drawing No. 0921-01561
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LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Domino A Series
Pinout
Signal
Domino A200
LaserSpeed
Signal A
2
15
Print Go
3
22
Signal Ground
1
11
User Voltage
4
20
Notes:
Configure the LaserSpeed for the appropriate pulse per unit length.
The index pulse should be set to trigger at the appropriate rate (every 2
feet, every 1 meter, etc), and with a 20 ms pulse width.
On the Domino A-Series printer, the Strobe Divide should be set to 1.
There are two ports that are in parallel so it doesn’t matter which one is
used. The other port would not be used. The printer should be set for
EXTERNAL print and the REPEAT PRINTING should be turned off.
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Interfacing with the LS8000-3
Durant President Series
Quadrature Pinout
Signal
Durant
LaserSpeed
Signal A
14
15
Signal B
10
6
Signal Ground
12
11
User Voltage
20
20
Signal
Durant
LaserSpeed
Signal A
14
15
Signal Ground
12
11
User Voltage
20
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the Durant counter
Set count mode in the Durant (single, quad, quad x2…)
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Durant Settings
Func #
Value
5
0.005
60
2
62
1
63
1
64
0.3000.0
LaserSpeed must be configured for 1000 pulses per unit (ft or m)
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Hengstler 723.1
Quadrature Pinout
Signal
Hengstler
LaserSpeed
Signal A
30
15
Signal B
29
6
Signal Ground
31
11
User Voltage
32
20
Pulsed Pinout
Signal
Hengstler
LaserSpeed
Signal A
30
15
Signal Ground
31
11
User Voltage
32
20
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the Hengstler counter
Set count mode in the Hengstler counter (single, quad, quad x2…)
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Imaje S4/S8
Pinout
Signal
Imaje S4/S8
LaserSpeed
Signal A
T1-8
8
Print Go
T1-4
22
Signal Ground
T1-1 and T1-3
11
User Voltage
T1-7
20
Notes:
The programmable pulse output of the LaserSpeed needs to be set to
5000 or 10000 pulses/m depending on the setting in the Imaje printer.
The Index Pulse Output from the LaserSpeed needs to be set to 1
pulse per meter.
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MI800
Quadrature Pinout
Signal
MI800
LaserSpeed
Signal A
B
15
Signal B
C
6
Signal Ground
A
11
User Voltage
D
20
Notes:
Configure the LaserSpeed pulse per unit length
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Newport P6000A
Pulsed Pinout
Signal
Newport
LaserSpeed
Signal A
TB2 1
15
Signal Ground
TB2 3
11
User Voltage
P2 8
20
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the Newport counter
Set count mode in the Newport counter (single, quad, quad x2…)
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Red Lion PAXI
Quadrature Pinout
Signal
PAXI
LaserSpeed
Signal A
5
15
Signal B
6
6
Signal Ground
4
11
User Voltage
2
20
Signal
PAXI
LaserSpeed
Signal A
5
15
Signal Ground
4
11
User Voltage
2
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length.
Set scaling in the PAXI.
Set count mode in the PAXI (single, quad, quad x2…).
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Siemens Counter Module 450-1
Quadrature Pinout
Signal
450-1
LaserSpeed
Signal A
23
15
Signal B
24
6
Signal Ground
26
11
User Voltage
28
20
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the 450-1
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Siemens Counter Module 6ES5 385-8MB11
Quadrature Pinout
Signal
Siemens
LaserSpeed
Signal A
7
15
Signal A-N
6
4
Signal B
9
6
Signal B-N
10
8
Signal Ground
3
11
User Voltage
1
20
Signal
Siemens
LaserSpeed
Signal A
7
15
Signal A-N
6
4
Signal Ground
3
11
User Voltage
1
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the Siemens counter
Set count mode in the Siemens counter (single, quad, quad x2…)
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TrueMeter
Quadrature Pinout
Signal
TrueMeter
LaserSpeed
Signal A
3
15
Signal B
2
6
Signal Ground
1
11
User Voltage
4
20
Signal
TrueMeter
LaserSpeed
Signal A
3
15
Signal Ground
1
11
User Voltage
4
20
Pulsed Pinout
Notes:
Configure the LaserSpeed pulse per unit length
Set scaling in the TrueMeter counter
Set count mode in the TrueMeter counter (single, quad, quad x2…)
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LaserTrak Software
LaserTrak Software
LaserTrak® is a Windows®-based software program, which allows you to
acquire and display the Length, Velocity, Quality Factor, and Gauge Status in
real time. The LaserTrak software configures the respective gauge’s operating
parameters, displays data, and collects data, which can be stored to a
computer hard drive. This LaserSpeed series of non contact speed and length
gauges provide a set of versatile tools that are applicable for a wide variety of
process measurement schemes. LaserTrak allows you to take full advantage
of this versatility in a straightforward, easy to understand manner.
There are several features available with the LaserTrak software. LaserTrak
mimics a chart recorder output on the screen and monitor the speed, length
and Quality Factor in real time and presents a time history depiction of the
data. LaserTrak can acquire and store data, and load and display stored data
from a previously acquired data file.
LaserTrak for Windows
Note: LaserTrak Version 4.0 or later must be used with the LS8000 gauge.
Installing the LaserTrak Software
This section includes the information you need to install and begin using your
copy of LaserTrak:
System Requirements
500 MHZ Pentium Computer Minimum (2 GHz Pentium Computer
recommended)
Windows 98, NT, 2000 or XP (Windows 2000 or XP recommended)
256 MB RAM
15" Monitor or bigger
50 MB of Hard Drive Space
®
Windows 98, NT 2000 and Windows XP are registered trademarks of Microsoft
Corporation.
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Software Installation Procedure
Complete the following steps to install the LaserTrak software:
1) Insert the LaserTrak for Windows Setup CD into your CD-ROM
drive.
2) From the Start menu select Run.
3) Browse to the LaserTrak_4_Setup.exe program on the CD-ROM
Drive and select it.
4) Press OK.
The setup program installs the software into the default
directory “c:\Program Files\BLM LaserTrak 4.0”. The
install program gives you a chance to accept the default
directory or install it in a directory of your own choosing.
The setup program does the following:
1) Creates a folder and group for the LaserTrak
program and files and puts the LaserTrak
program icon into your desktop.
2) BLM LaserTrak 4.0 is added to the Windows
Start Programs menu under BLM LaserTrak 4.0
Starting LaserTrak
Once the LaserTrak software has been installed the LaserTrak software will
automatically start. If LaserTrak does not automatically start, go to the Start
Menu and click on the LaserTrak program…
… or double click the LaserTrak Icon on your desktop.
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Note:
Make sure that the LaserSpeed gauge is connected to the computer
via RS232, RS422 or Ethernet before starting the LaserTrak
software. The first thing the LaserTrak software does is establish
communication between the LaserSpeed gauge and the computer. If
no gauge is connected, communication will not be established and
you will see the following screen.
If you get the Gauge Not Found message, you can still run LaserTrak by
recalling and displaying stored data.
LaserTrak will display
the following screen
when starting up if
communication has
been established
between the gauge
and the software.
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The Communication screen will then be displayed showing the COM port and
BAUD rate and communication parameters it found to communicate with the
gauge.
Shows the COM Port and Settings
used to establish communication
Click the OK button to go to the Chart Recorder Screen. The
Chart Recorder screen will acquire Speed, Length, Quality Factor
and Status data from the LaserSpeed gauge and display it. The
Speed and Quality Factor will be displayed graphically and the
Length and Status information will be displayed in a table format.
Press the Start Readings button to acquire data from the gauge.
The Start Readings button will change to Stop Readings button.
Press the Stop Readings button to stop acquiring data from the
gauge. The graph, Graph Info and Gauge Status will only be
active when acquiring data from the gauge, and the Stop
Reading Button is being displayed. All the data will be frozen on
the Chart Recorder screen when the Stop Readings button is pressed and the
button changes back to Start Readings again.
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Chart Recorder Screen
Gauge Info
Length (m) – the length on the LaserSpeed gauge’s length counter. The
length is accumulation from the last time the gauge was reset.
Length is displayed in the units set during gauge
Configuration.
Vel (m/min) – the instantaneous speed measured by the LaserSpeed
gauge. The speed is displayed in the units set during gauge
Configuration.
QF- the instantaneous Quality Factor measured by the LaserSpeed
gauge. QF is displayed as a number between 0 and 15,
where 15 represents the best and 0 represents no
measurements being made.
Average QF- the average of all the QF readings since the LaserTrak
software started acquiring data from the gauge. This value is
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reset every time data acquisition is restarted. Note: This is not
the average of the QF on the display.
Point Record Number- is the number data points acquired since the data
acquisition began.
Time in Sec- the amount of time since the data acquisition began.
Vel. Min IV – the minimum velocity in view (IV) on the velocity graph
Vel. Max IV – the maximum velocity in view (IV) on the velocity graph
Gauge Status
Instrument Type – the type of gauge from which LaserTrak is acquiring
data.
Valid Measurement – Yes, if the gauge is making valid measurement,
and No, if it is not making valid measurements.
Material Present – Yes, if material present is detected and No, if material
present is not detected.
Laser At Temp – Yes, if the Laser is within the allowed temperature
range, and No if the Laser is outside its temperature range.
The LS8000 will turn off its Laser if it is outside the allowed
temperature range.
Interlock Closed- Yes, if the interlock is closed and No if the interlock is
open. The Laser will only be on if the interlock is closed.
Shutter Open – Yes, if the internal shutter is open and No if the internal
shutter is close. If the shutter is closed, the Laser beam will
be blocked and no measurements will be made.
User Update Rate – Displayed in Milliseconds: Indicates how fast the
gauge will output readings via RS232, RS422, and Ethernet
Walking Threshold – the gauge will not increment the internal length
counter or output pulses if the speed is below this Walking
Threshold value. The Walking Threshold is set during gauge
Configuration. Set the Walking Threshold to 0 to disable this
feature.
Hold Velocity – Sets the velocity value above which, the last valid reading
is held when no measurements are made, and below which
the LS8000 outputs a zero for the velocity and stops counting
length when no valid measurements are made. The Hold
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Velocity is set during gauge Configuration. Set the "Hold
Velocity if Above" setting to a large value (like 900,000.000) to
disable this feature.
LaserTrak Toolbar
Top line of Chart Recorder Screen- shows the Gauge type and the
COM port parameters
or Ethernet parameters
LaserTrak Menus
File Menu
New- selects between the Chart
Recorder Screen, Monitor
screen and Length Mode Screen
Open Recipe File- opens a
previously stored recipe file that
holds the operating parameters
for the gauge.
Open Graph- opens a previously
stored graph or graph
configuration.
Close- closes the window
Save Recipe File- Stores a recipe file that contains all the current operating
parameters of the gauge.
Save Graph- Stores the data displayed in the graph, a picture of the graph,
or the current graph configuration.
Print- prints a copy of the current screen that is being displayed
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Data Storage Options— allows data
acquired from the gauge to be
stored in a file to be recalled later
back into LaserTrak or imported into
an Excel work sheet. The path and
file name can be selected by
pushing the browser button.
When Save Data is selected
LaserTrak will save all the data to
the file listed in File Name. The Run
Number will be appended to the file
name. Each time new data is saved
the Run Number will automatically
be incremented by 1. Data is saved
starting when the "Start Readings" button is clicked, and stopping when
the "Stop Readings" button is clicked.
Browser
Button
Exit- will exit the program and save current program settings.
View- Allow the Graph Info and Graph Options to be
turned on or off. The check mark turns on the
option.
Tools Menu
Reset Graph to Defaults – Resets all
the graph parameters to factory
default settings. Use this when
the graph is not working
correctly and you want to go
back to a know operation
condition.
Update Max/Min Velocity- when
checked, the Vel. Min IV and the
Vel Max IV will be automatically
updated. If unchecked, these
two parameters will not be
automatically updated, but can
be manually updated by pushing the Update Min/Max- Button next to
the Start Readings button.
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Enable Vertical Tracking on Start- When Checked, autoscaling on the the
vertical axis will automatically be turned on each time the Start
Readings button is pressed.
Unlock- Unlocks the Factory Setting
or the Terminal Assist. Factory
Settings and Terminal Assist are
both password protected. The
Factory Setting should only be
accessed by authorized
personnel. Terminal Assist can
be used to manually send
commands (like when using HyperTerminal) to help diagnose
communication problems. The password for Terminal Assist is “laser1”.
Note: You must unlock the gauge settings with the "*LOCKED=0"
command before settings can be changed with Terminal Assist.
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Terminal Assist Screen
This screen can be used to manually send commands to the gauge. To use this
screen:
1) Enter the Communication Parameters that the gauge is using, and click Start
2) Type the command into the Command Line box, and then click the Send button
to transmit.
3) The gauge's responses are displayed on the screen as they are received.
Communication
Parameters
Response from
Gauge
Command Line
Send command
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Search For LaserSpeed- initiates a search for the LaserSpeed gauge to
establish communication
between LaserTrak and the
gauge. If the Serial
checkbox is checked, the
enabled serial ports will be
searched. If the TCP/IP box
is checked, then the local
network will be searched for
gauges. If no gauges are
found, make sure that the
serial port is enabled under
Program Settings.
Program Settings- Shows the active COM Ports. Only
COM Ports that are checked will be searched
during the communication search. Also shows the
default COM Port and operating parameters the
software will use to communicate with the
LaserSpeed gauge. Only the checked serial
ports will be searched for LaserSpeed gauges. If
a new serial port is added to the computer, it
must be selected in this screen before it can be
used with LaserTrak.
LaserSpeed Configuration- opens the operating parameter configuration
screen. There are pages to the Configuration screen.
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LaserTrak Configuration Screens
Gauge Info Tab- Screen displays gauge information.
This tab displays general information about the gauge.
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Standard Tab- shows common operating parameters for
the LaserSpeed gauge. These parameters can be
used to tailor the gauge operation to fit a specific
application. The entry fields are either direct entry
or a pull-down menu. Once all the operating
parameters are set, press the Update button to
update the parameters in the gauge. A tool tip will
indicate the range of numbers valid for that entry field when the cursor
is placed over a direct entry field for a few seconds. For the direct entry
field the number can be entered
without a carriage return. Just enter
the number and move to the next
field.
Once the parameters in the gauge have
been updated to the gauge, they are
permanently stored in the gauge until a
different set of operating parameters are
Updated to the gauge.
Communication Tab- screen shows the
communication parameters used by the
gauge to communicate via RS232, RS422
and Ethernet.
Once the parameters in the gauge have
been updated to the gauge, they are
permanently stored in the gauge until a
different set of operating parameters are
Updated to the gauge.
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Advanced Tab- screen shows advanced
operating parameters settings for the
gauge. These are operating parameters
that can be use to tailor the gauge to a
specific application. The parameters in
the advanced screen should only be
changed by a knowledgeable person. The
advanced parameters only need to be
changed for difficult application.
Outputs Tab- screen shows settings that
affect the operation of the gauge's analog
and digital outputs.
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Standard Operating Parameters
Material Present Input
Mode
Controls how the gauge determines Material Present. The sensor can use
either the amount of reflected laser light (Internal), or it can use an external
input signal (Active Low/Active High).
Material Present
Dropout Time
Sets the time that Material Present can be lost before the sensor triggers the
end of a measurement. If you are taking measurements and the Material
Present signal is lost for less than the selected Material Present dropout time,
the loss is considered to be a momentary loss of signal and is ignored. If the
signal is lost for longer than the selected Material Present dropout time, it is
considered the end of the material. This function is very useful when making
length measurements on poor reflecting material.
Material Present
Validation Time Limit
Sets the maximum time that can elapse between the detection of Material
Present and the acquisition of valid velocity readings. If the acquisition of valid
velocity readings exceeds this time limit the gauge will consider the length
measurement to be invalid and output 999999.999 as a length.
Material Present
Threshold
A value from 0 to 4095 that indicates the relative reflected laser light threshold
level of the Material Present signal. A setting of 0 would take very little
reflected light to trigger Material Present. A setting of 4096 will take a lot of
light on the detector to trigger MP. A good starting place is in the center of the
range. This setting is only applicable when the Material Present Input Mode is
set to Internal.
Walking Threshold
The velocity value below which, the output is forced to zero regardless of
whether or not valid readings are obtained. This setting is useful for eliminating
accumulation of length when the material is vibrating while stationary in the
measurement zone. Setting this value to 0 disables the setting. The range is 0
to 2000
Minimum Final Length
When in Final Length mode, sets the minimum length that will be reported.
This is useful for ignoring momentary glitches in Material Present caused by
outside disturbances such as water droplets or spray passing through the
measurement area. Any measured length less than this setting will not be
reported as a Final Length. The range is 0 to 999,999.999.
Index Pulse Length
Sets the Index pulse length in 10 ms increments. The range is from 10ms to 2
seconds.
Index Pulse Every
Sets the distance between index pulses in the selected measurement units.
The range is 0.1 and 2000
High Speed Pulse Rate
Sets the number of pulses per unit length for the high speed pulse output. The
unit length can be configured by setting the Units of Measurement setting. The
gauge is capable of transmitting pulse rates as high as 5MHz on this pulse
output. Select a Pulse Rate setting that will produce a frequency lower than
5MHz at the maximum expected line speed. The range is 0.001 to 100,000.
Low Speed Pulse Rate
Sets the number of pulses per unit length for the adjustable voltage pulse
output. The unit length can be configured by setting the Units of Measurement
setting. The sensor is capable of transmitting pulse rates as high as 250kHz
on this pulse output. Select a Pulse Rate setting that will produce a pulse rate
lower than 250kHz at the maximum expected line speed.
For example, if the maximum line speed was 1000 m/min, a setting of 10,000
pulses/meter would produce an output frequency of about 167kHz. (1000
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m/min x 1min/60sec x 10,000 pulses/m = 166,667 1/s ). The range is 0.001 to
100,000.
Measurement Units
Sets the units that the length and speed will be measured in. Available choices
are:
•
•
•
•
•
•
•
•
•
Feet/sec
Feet/minute
Meters/sec
Meters/min
Inches/min
Millimeters/min
Millimeters/sec
Yards/min
Yards/sec
Length will be in m, feet, mm, in or yards, depending on the selected value.
User Update Rate
The core period determines how often the LaserSpeed sensors provide the
LaserTrak software with an updated speed and length measurement. Available
choices are Fast (4ms), Medium (32ms) and Slow (100ms) in the Standard
settings. For the advanced settings the available choices are 1 to 2000 ms in
1 ms increments.
The Recommended User Update Rate is 32 ms.
Output Configuration Parameters
Analog Zero Scale
Sets the speed equal to the analog zero scale. See the Analog Output Voltage
Section for details.
Analog Full Scale
Sets the speed equal to the analog full scale. See the Analog Output Voltage
section for details.
AFS Represents QF
When checked the gauge will output QF on the analog output as a 0 to 1 volt
signal. 0 - QF 0 and 1 volt –QF=15. When not checked the gauge will output
speed on the analog output as a 0 to 2 volt signal
Auxiliary Digital Output
Func.
Sets the operation of the Auxiliary output. The choices are show on the pop up
menu.
High Speed Pulse
Config
The high speed pulse output defaults to outputting pulse according to the High
Speed Pulse Rate set in the standard Configuration Tab. The pulse output can
be configured to output gauge status if the high speed pulse output is not
needed. The choices are shown in drop down menu.
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Low Speed Pulse Config
The low speed pulse output defaults to outputting pulse according to the Low
Speed Pulse Rate set in the standard Configuration Tab. The pulse output can
be configured to output gauge status if the low speed pulse output is not
needed. The choices are shown in the table.
Length Threshold A
Indicates when the current length has exceeded the Length Threshold
A set point. This output is reset when the Index Pulse resets. See the
Index Pulse/Length Thresholds section for details about length
thresholds.
Length Threshold B
Indicates when the current length has exceeded the Length Threshold
B set point. This output is reset when the Index Pulse resets. See the
Index Pulse/Length Thresholds section for details about length
thresholds.
Advanced Operating Parameters
Direction Inversion
Switch
Changes the function of the Direction Digital input.
When set to Normal, a low voltage on the Direction Input (or leaving it
disconnected) will cause the gauge to measure a positive velocity and the
length to count up, and a high (5-24V) voltage on the Direction Input will cause
the gauge to measure a negative velocity and the length to count down.
When set to Reverse, the polarity of the digital input is reversed, so a low will
cause the gauge to measure a negative velocity, and a high (5-24V) will cause
the gauge to measure a positive velocity.
Changing the direction will also change the phase of the pulse outputs,
causing a connected quadrature counter to count in the opposite direction.
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Hold Velocity If Above
The gauge will hold the last valid velocity reading above the value set in Hold
Velocity If Above when the gauge stops making valid measurements. Set this
to a high value to disable this function. This is useful if the product can not be
guided well enough to keep the product in the measuring region of the gauge.
The range is 0 to 999,999.999.
Velocity Hold Timeout
Configures how long the gauge will hold the last reading when measurements
are not being made. (See the Hold Velocity if Above Setting). This setting can
be set to any value from 0 to 65535 milliseconds. A setting of 1ms is the
minimum hold time. A setting of 0 disables the timeout and causes the gauge
to hold the last reading forever.
Calibration Trim
When set to 100.00% the gauge will use the factory calibration. The Factory
calibration is multiplied by the Calibration Trim percentage to modify the
calibration of the gauge. This can be used to compensate for shrinkage,
stretch or misalignment of the gauge. The range is 50% to 200%.
DIP Average Time
Normally set to Factory Default. When not set to Factory Default, the range is
1 to 2047. The DIP is a forward running average applied to the Velocity output.
Use this to smooth the Velocity output of the gauge. The bigger the number the
more smoothing will occur.
User Update Rate
Sets the rate the RS232, RS422 and Ethernet will be automatically updated.
The range is 1ms to 2s in 1ms increments.
Length Reset Value
Configures the starting length when the length reset occurs. This setting can
be used to introduce a constant offset (positive or negative) to the measured
length readings. For example, when using two optical detectors to trigger the
external Material Present input, this setting would be set to the distance
between the sensors. This setting affects only the internal length output over
the serial port or over Ethernet—it does not affect the pulse outputs. For most
applications, this value should be set to 0.
Minimum Velocity Limit
Sets the minimum (most negative) measureable velocity. When a velocity is
measured below this value, it will be ignored. Can be any positive or negative
value. To disable, set to a large negative value.
Maximum Velocity Limit
Sets the minimum (most positive) measureable velocity. When a velocity is
measured above this value, it will be ignored. Can be any positive or negative
value. To disable, set to a large positive value.
Length Reset Input
Action
This configures the Length Reset input function. The Graphic on the side of the
pop up menu shows the action required to reset the internal length counter of
the gauge. For example: Rising
Edge Triggered is selected and
the graphic shows an arrow on
the rising edge of the pulse to indicate that
the length counter will be reset on the rising
edge of the reset pulse.
QF Warning Threshold
Sets the Quality Factor value below which the Quality Factor Warning is
asserted.
QF Warning Timeout
Configures the amount of time that the indicated Quality Factor must be below
the QF Warning Threshold before the Quality Factor Warning output is
asserted.
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COMM LED Control
Indicates traffic on either RS232/RS422 or Ethernet. The light will turn blue
when the gauge is transmitting, turn orange when the gauge is receiving and
white when both transmit and receiving are happening at the same time.
The COMM light in conjunction with the Valid Light indicate the BAUD Rate
and control parameters for RS232/RS422 communication.
The COMM light will blink n times when the gauge is power up to indicate the
BAUD rate the gauge is set to.
The Valid light will be off during the power up sequence if the number of date
bits, parity and number of stop bit is set to 7-n-2 and on during power up
sequence when set to 8-n-1.
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Middle line of Chart Recorder Screen- shows the program control line
Window – Once the
Graphing, Monitor
and Length windows
have been opened,
Window allows
switching between
each window.
Help- Brings up the about LaserTrak screen. The About screen shows the
Date, part number, and software version number of the software.
Chart Recorder Toolbar
The Chart Recorder graphs the velocity and quality factor data acquired from
the LaserSpeed gauge. The Tool bar functions allow the user to configure the
graph for each application.
Resumes tracking or makes the graph active again. If the arrow is greyed
out the graph will not scroll. Click on the arrow to make the graph active.
The arrow will turn green the active scrolling is enable.
Freezes the graph but the software continues to acquire data, use resume
to make graph active again.
Axis scroll control. Allows the cursor to grab the axis increase or decrease
the scale.
Axis Zoom control, allows the cursor to grab the axis and zoom in or out.
Zooms Out
Zooms In
Selects Objects
Zoom Box, draws a box around data that will be zoomed in on
Data Cursors
Edit graph parameters, password protected and greyed out when not active
Copies an image of the graph, or the raw data to the clipboard.
Prints graph image
Print Preview
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Displaying Data
There are three main ways to display data. They are the Chart Recorder,
Length and Speed Monitor and the Length Histogram. To select a the type of
data display click File, then position the cursor over New on the drop down
menu to bring up the selection tab with the three choices. Select Chart,
Monitor or Length Mode by clicking on the drop down selection menu.
Chart Display
Length, Vel,
Quality Factor
Table
Speed Graph
Gauge Info.
Table
Quality Factor Graph
The Chart Recorder screen will acquire Speed, Length, Quality Factor and
Status data from the LaserSpeed gauge and display it. The Speed and Quality
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Factor will be displayed graphically and the Length and Status information will
be displayed in a table format. Press the Start Readings button to acquire data
from the gauge. When the Start Readings button is pushed, the Start
Readings button will change to a Stop Readings button.
Press the Stop Readings button to stop acquiring data from the gauge. The
graph, Graph Info and Gauge Status will only be active when acquiring data
from the gauge and the Stop Reading Button is being displayed. All the data
will be frozen on the Chart Recorder screen when the Stop Readings button is
pressed and the button changes back to Start Readings again.
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Monitor Display
The Monitor Display shows the Speed and Length in a number format and
the Quality Factor as a Bar Graph. The Quality Factor Bar Graph shows the
Quality Factor as a lighted bar. All the bars are lighted when the Quality
Factor is 100%. None of the bars are lighted when Quality Factor is 0. The
High (green square), Low (red square) above the bar graph indicate the max
and minimum Quality Factor readings since the start of data acquisition. To
rest these marks press Stop Readings twice.
The Quality Factor Bar Graph can indicate different operating conditions of
the gauge depending on what the Quality Factor is doing. This can help
diagnose problems with the setup of the gauge or with the conditions under
which the gauge is operating.
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For example, the Quality Factor that indicates the gauge is measuring a poor
light scattering surface when the Quality Factor is relatively constant but
lower then 15. The Gauge will measure accurately under these conditions
as long at the QF stays in the yellow and Green areas.
When the Quality Factor is jumping from 0 to 15 or from the red to the green
area quickly, this typically indicates that the product is moving in and out of
the measuring region of the gauge or there is something interfering with the
Laser beams hitting the surface of the material being measured. The gauge
can not make measurements if the Laser beam does not have a clear path
between the gauge and the surface being measured. This would be indicated
by a Quality Factor equal to zero or in the red zone on the bar graph.
Length Mode Display
The Length Mode Screen Has two modes of operation, the Successive
Reading mode and Final Length mode. Successive Reading mode allows
discrete lengths to be measured and displayed in the form of a Histogram.
The software will acquire the final length measured after the length counter
has remained at the same length for 4 successive User Update Periods. This
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can be accomplished by making the speed go to zero thereby freezing the
length counter or by using the Material present signal to freeze length
readings. The length must remain the same for a minimum of 80 ms. In the
Successive Reading mode the software is continually reading the length,
speed and Quality factor from the gauge every User Update period.
Final Length mode uses the TF command in the gauge. The TF command
sets the gauge to output only the final length and average Quality Factor at
the end of each part being measured. The gauge only outputs one data point
per length measurement. The Material present signal determines when the
length measurement starts and stops. The minimum time that Material
Present can be off is 4 ms for the gauge to act on the Material present signal
and output the final length and Quality factor.
The bin size of the histogram is determined by the Hist. Minimum, Hist.
Maximum settings and #Data Bins shown in Length Statistics. The bin size
lumps all length measurements within a bin size into one bin and considers
them at one length. This can be set to minimum of 0.001. The Hist. Minimum
and Hist Maximum set the upper and lower limit of lengths that will be used
in the histogram. Lengths outside these values will be shown on the table on
right side of the screen but not used in the histogram. In addition a Red
number will appear in the upper right and left corner of the graph to indicate
how many length readings are larger then the Hist. Maximum and smaller
then the Hist. Minimum.
The length readings are also displayed in a tabular format on the right hand
side of the display.
Length statistics are shown at the bottom of the screen.
Ignore if Below: allows the user to reject measurements below this
threshold
Ignore if Above: allows the user to reject measurements above this
threshold
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Lower Tolerance: allows the user to alarm on measurements below this
threshold
Upper Tolerance: allows the user to alarm on measurements above this
threshold
# of Samples: indicates how many samples are used in the calculations
Velocity displays the speed of the parts being measured
Mean: shows the mean statistic of all lengths included in the measurement
Std Dev: is the standard deviation of all parts included in the measurement
Min Length Read displays the shortest length measured
% Dev from Mean: displays the percent of deviation of the shortest length
from the mean
Max Length Read: displays the longest length measured
% Dev from Mean: displays the percent of deviation of the longest length
from the mean
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RS-232/RS-422 Communication
RS-232/RS-422 Communication
The LS8000-3 gauge has a full set of serial commands which you can use to
configure and read data from the instrument. In order to interface serially, you
will need to connect the RS-232/RS-422 receive and transmit signals on the
gauge to the serial port on your computer. If you are using a LaserSpeed
Breakout Assembly, you can connect a straight-through RS-232 cable from the
connector labelled RS-232 to any PC serial port. If you change the baud rate
to 230.4k and can no longer communicate with the LS8000-3, follow the
procedure in the Automatic Baud Rate Detection section to recover.
When changing settings, the gauge settings must be unlocked before settings
can be modified. See the *LOCKED and *LOCKEN commands for details.
If you are not using a LaserSpeed Breakout Assembly, see the Connecting to
Outputs section for wiring details.
Baud Rate & Framing
The LS8000-3 supports baud rates from 4800 to 230.4k, and supports both
7n2 and 8n13 framing. Flow control is not supported. The baud rate and
framing for the RS-232 and RS-422 ports are individually configurable. The
configuration can be changed with LaserTrak, or with a serial command. Be
careful when setting the baud rate to 230.4kBaud, because PC's typically do
not support this baud rate. You may have to purchase an add-on high speed
serial card or USB serial converter to use this baud rate.
Note:
If you change the baud rate or framing for the port you are currently
using, you will have to change the local baud rate to match the
LS8000-3 after sending the command. LaserTrak handles this
change automatically.
Serial Commands to set Baud Rate & Framing
Configuration Setting
Serial Command
RS-232 Baud Rate & Framing
"J"
RS-422 Baud Rate & Framing
"@"
3
"7n2" = 7 Data Bits, No Parity, 2 Stop Bits, "8n1" = 8 Data Bits, No
Parity, 1 Stop Bit
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Baud Rate & Framing Settings
Setting
Baud Rate
Framing
1
230.4k
7n2
2
115.2k
7n2
3
57.6k
7n2
4
38.4k
7n2
5
19.2k
7n2
6
9600
7n2
7
4800
7n2
11
230.4k
8n1
12
115.2k
8n1
13
57.6k
8n1
14
38.4k
8n1
15
19.2k
8n1
16
9600
8n1
17
4800
8n1
RS-232 Maximum Cable Lengths
Beta LaserMike recommends the following cable lengths based on the chosen
RS232 baud rate. (These recommendations do not apply to RS-422, which is
designed for long distances communications.)
RS-232 Baud
Rate
Recommended Maximum
Cable Length
230400
10m
115200
10m
57600
20m
38400
50m
19200
100m
9600
200m
4800
200m
If you experience problems at high baud rates when using RS-232 over a long
cable, try decreasing the baud rate or switching to RS-422. The RS-422 port
is designed for long distances at high baud rates. Beta LaserMike
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recommends that the RS-422 port be used for high speed, long distance
communications.
Note:
High-baud rates are only required when acquiring length and speed
data over the serial port. If you are using the pulse outputs, and are
only using the serial port for configuration and/or diagnostics, you do
not need a high baud rate. The maximum baud rate that will work for
a particular application is dependent on the length of the cable and
the amount of electrical noise in the environment. If you are using a
high baud rate and are having problems communicating, try using
LaserTrak to switch to a slower rate.
Baud Rate Indication on Power Up
The LS8000-3 indicates the selected baud rate setting for both the RS-232
and RS-422 ports at power-on, whenever a baud rate setting is changed, and
when the auto-baud feature causes a baud rate change on one of the ports.
The COMM LED flashes a number of times, indicating the selected baud rate.
While the COMM LED is blinking, the Valid LED indicates the selected framing
(OFF for 7N2 and ON for 8N1.)
Number of COMM
LED Blinks
Baud Rate
1
230.4k
2
115.2k
3
57.6k
4
38.4k
5
19.2k
6
9600
7
4800
Valid LED
State
Framing
OFF
7 Data Bits, No Parity, 2 Stop Bits
ON
8 Data Bits, No Parity, 1 Stop Bit
The COMM LED indicates the baud rate for each port 4 times. Each series of
blinks is separated by a pause of a few seconds. The RS-232 baud rate is
indicated by blinking Orange, and the RS-422 baud rate is indicated by
blinking Blue.
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For example: if the RS-232 port is configured for 38.4kBaud, 7N2, and the RS422 baud rate is set to 115.2k, 8N1, the COMM light will blink 4 sets of 4
Orange blinks with the Valid LED turned OFF, followed by 4 sets of 2 Blue
blinks with the valid LED turned ON.
Automatic Baud Rate Detection
The LS8000-3 can automatically detect the baud rate and framing that you are
using during the first 20 seconds after power is applied to the gauge. This is to
make it possible to recover if you set the baud rate to a rate too high for your
PC to support, or if the RS-232 baud rate is too high for the length of cable you
are using. The Autobaud feature operates on both the RS-232 and RS-422
serial ports independently.
At power-on, the LS8000-3 loads the Baud Rate & Framing settings for the
RS-232 and RS-422 serial ports from non-volatile memory and listens for
commands. For the first 20 seconds after power-on, the serial port is
monitored for activity, and the baud rate is measured. If a carriage return (hex
0x0d) is received during this time, the gauge ignores the baud rate stored in
non-volatile memory, and switches to the measured baud rate. The gauge will
use this baud rate until the power is cycled again, or a configuration setting is
changed, at which point it will revert to the last stored setting. After
communications are established, you can change the stored setting by
configuring it with LaserTrak, or by sending a command with a terminal
program such as HyperTerminal. To ensure that communications is not lost
again, the baud rate should be set before attempting to change any other
parameters.
Method 1
1) Turn off power to the LS8000-3
2) Start LaserTrak, but don't click the Search button yet
3) Turn on the LS8000-3, and wait for the COMM light to start flashing (or
wait for 10 seconds if you can't see the light)
4) Click Search—the LS8000-3 should be found automatically
5) In LaserTrak, click Tools LaserSpeed Configuration
6) Select the Communication tab
7) Select a new baud rate, and click Update
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Method 2
1) Start HyperTerminal (or any other terminal program) and set to 19200,
7, N, 2 (or the baud rate you want to use later). HyperTerminal is
installed with Windows 2000/XP, and can be found in Start
Menu Programs Accessories Communications
2) Cycle the gauge power.
3) Hit the Enter key 3 times, or transmit three
Carriage Returns (hex 0x0d).
4) Use the "Z" command to verify gauge is
communicating.
5) Use the "J" command to set the RS-232
baud rate or the "@" command to set the
RS-422 baud rate.
6) Reconfigure HyperTerminal to the new
baud rate if different from that in step 1.
Communication Protocol
This section lists the commands used to configure the LS8000-3, and to read
measurement data. Throughout this section, is used to denote a
carriage return, and is used to indicate a linefeed.
Notation
Description
Carriage Return character
ASCII Value: 13
Linefeed character
ASCII Value: 10
Integer Value (variable length)
Indicates an integer value with length from 1 to 9 characters. When sending
a command to set a configuration setting, the transmitted value can contain
leading zeros, but they are not required. When reading a configuration
setting, the LS8000-3 will not transmit leading zeros in its response.
Example Notation: L
Example Command: L100000
IP Address
Example Notation: *IPADDR=
Example Command: *IPADDR=192.168.10.246
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In this section, characters sent to or received from the LS8000-3 are indicated
with a different font. This is to differentiate between the description of the
command or response and the command/response itself. Any text that
appears in mono-space font is text that is sent to or from the LS8000-3.
Text
Example Font
Descriptive Text
High Speed Pulse Setting
Command/Response Text
L1000000
All commands sent to the LS8000-3 and all responses from the LS8000-3 end
in a . If commands are sent to the LS8000-3 ending in
(Carriage Return followed by a Linefeed), the LS8000-3 will not process the
commands properly. All responses are be terminated with only a , not a
.
There are two different types of command syntaxes that the LS8000-3 uses.
The first type is backward compatible with legacy LaserSpeed 4000/8000
systems, and consists of one or two characters. In general, these commands
affect the LS8000-3's measurements or data processing. The other type
consists of longer commands, such as the *IPADDR command, which affect
communications, or are informational commands. These commands always
start with an asterisk character (*).
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Communication Protocol: Command Descriptions
RS-422 Baud Rate & Framing
@
@
Read
Response Format:
@
Set
is an integer from 1-7, or 11 to 17 specifying the RS-422 baud rate and framing. If using
binary output mode (see the TB command), the framing must be set to 8n1.
Setting
Baud Rate
Framing
1
230.4k
7n2
2
115.2k
7n2
3
57.6k
7n2
4
38.4k
7n2
5
19.2k
7n2
6
9600
7n2
7
4800
7n2
11
230.4k
8n1
12
115.2k
8n1
13
57.6k
8n1
14
38.4k
8n1
15
19.2k
8n1
16
9600
8n1
17
4800
8n1
Where:
7n1: 7 data bits, no parity, 2 stop bits
8n1: 8 data bits, no parity, 1 stop bit
Note: After this setting is changed, the COMM LED and Valid LED will flash, indicating the
new configuration.
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RS-232 Baud Rate & Framing
J
J
Read
Response Format:
J
Set
is an integer from 1-7, or 11 to 17 specifying the RS-232 baud rate and framing. If using
binary output mode (see the TB command), the framing must be set to 8n1.
Setting
Baud Rate
Framing
1
230.4k
7n2
2
115.2k
7n2
3
57.6k
7n2
4
38.4k
7n2
5
19.2k
7n2
6
9600
7n2
7
4800
7n2
11
230.4k
8n1
12
115.2k
8n1
13
57.6k
8n1
14
38.4k
8n1
15
19.2k
8n1
16
9600
8n1
17
4800
8n1
Where:
7n1: 7 data bits, no parity, 2 stop bits
8n1: 8 data bits, no parity, 1 stop bit
Note: After this setting is changed, the COMM LED and Valid LED will flash, indicating the
new configuration.
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Quality Factor Warning Threshold
&
&
Read
Response Format:
&
Set
is an integer from 0 to 15 specifying the threshold at which the Quality Factor Warning
Output will turn on. If the QF goes below this value for longer than the Quality Factor
Warning Timeout, the output will turn on. To turn back off again, the QF must go above the
threshold for longer than the timeout.
Voltage High: QF is less than the Warning Threshold
Voltage Low: QF is greater than or equal to the Warning Threshold
This output is available on either pulse output, or on the Index Pulse output, as an alternate
configuration. See the %, $H, and $L commands for details.
Quality Factor Warning Timeout
<
<
Read
Response Format:
<
Set
is an integer from 0 to 65,535 specifying the number of milliseconds that the QF must be
below the Quality Factor Warning Threshold before the warning output will trigger.
The default value is 10,000, which is 10 seconds. This means that the QF must be below
the threshold for 10 seconds before the output will trigger. This setting should be kept fairly
large to avoid nuisance alarms.
Direction Inversion Switch
A
A
Read
Response Format:
A
Set
is an integer, either 0 or 1. Changes the function of the Direction Digital input. Changing the
direction will also change the phase of the pulse outputs, causing a connected quadrature counter to
count in the opposite direction.
Value
Line Direction
0
Normal –A low voltage on the Direction Input (or leaving it disconnected) will cause the
gauge to measure a positive velocity and the length to count up, and a high (5-24V)
voltage on the Direction Input will cause the gauge to measure a negative velocity and
the length to count down.
1
Reversed – The polarity of the digital input is reversed, so a low will cause the gauge to
measure a negative velocity, and a high (5-24V) will cause the gauge to measure a
positive velocity.
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Hold Velocity If Above
B
B
Read
Response Format:
B
Set
is the velocity value * 1000 with the units being the same as the units set with the U
command.
Sets the velocity value above which, the last valid reading is held when no measurements
are made, and below which the gauge outputs a zero for the velocity and stops counting
length when no valid measurements are made.
When holding the last speed, length will continue to count, and the pulse output will hold at a
constant frequency.
If you do not want the speed to hold if measurements are lost, then set the value to a very
high velocity (well above the normal speed range.)
Example:
If the units are ft/min (U setting is 2), the command B500000 would cause the velocity
to hold above 500 ft/min.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
Hold Velocity Timeout
$T
$T
Read
Response Format:
$T
Set
is the number of milliseconds to hold the current velocity when no measurements are
made, if the last velocity was above the Hold Velocity if Above value.
To disable this timeout and hold the velocity forever, set this value to 0.
Example:
To set the Hold Velocity Timeout to 5 seconds, send the command:
$T5000
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Calibration Trim
C
C
Read
Response Format:
C
Set
is a number between 5000 and 20000, corresponding to 50% to 200%. This allows the
calibration number to be adjusted by the values from 0.5000 to 1.9999. The factory
calibration will adjusted by (Calibration Trim/10000).
This value should normally be left at 10000 (100%). Do not change this setting unless you
know exactly how it will affect your process. LaserSpeed gauges are permanently factory
calibrated to a NIST standard, and should not require trimming.
Example: If a calibration product of length 1000m is run through the gauge and it measures
999m due to an alignment error, the trim adjustment should be set to:
Actual
Measured
1000
C = 10000 ×
= 10010
999
C = 10000 ×
The command C10010 would set the value to the 100.10%.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
Analog Full Scale Velocity
D
D
Read
Response Format:
D
Set
is the velocity value * 1000 corresponding to the full scale output of the 0-2V analog
output. The Analog Output is described in detail in the Analog Output Voltage section.
When this setting is set to 0, the Analog Output represents the Quality Factor on a 0-1V
scale.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
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Analog Zero Scale Velocity
N
N
Read
Response Format:
N
Set
is the velocity value * 1000 corresponding to the zero scale output of the 0-2V analog
output. The Analog Output is described in detail in the Analog Output Voltage section.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
Filter Range Enables
E
E
Read
Response Format:
E
Set
is an integer that should normally be set to 31.
This setting should normally be left at 31 and should not be modified. The LS8000 will not
work properly if this setting is set incorrectly. LaserTrak uses this value to configure the
minimum and maximum measurable speeds. Only change this setting if specifically
instructed to do so by a Beta LaserMike Service Engineer.
Material Present Input Mode
S
S
Read
Response Format:
S
Set
is an integer from 0 to 2 indicating the Material Present Input Mode.
Value
Description
0
Use Internal Material Present
1
External Material Present (Active Low)
MP High Low transition starts a measurement
MP Low High transition ends measurement
2
External Material Present (Active High)
MP Low High transition starts a measurement
MP High Low transition ends measurement
Note: To disable the Material Present feature and have Material Present on all the time, set
the Material Present Input Mode to External Active Low and leave the Material Present input
disconnected.
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Material Present Dropout Time
F
F
Read
Response Format:
F
Set
is an integer from 0 to 500, specifying the Material Present Dropout Time in
milliseconds.
If you are taking measurements and the Material Present signal is lost for less than the
selected Material Present dropout time, the loss is considered to be a momentary loss of
signal and is ignored. If the signal is lost for longer than the selected Material Present
dropout time, it is considered to be end of the material. This function is very useful when
making length measurements on poor reflecting material.
Material Present Validation Time
G
G
Read
Response Format:
G
Set
is an integer from 0 to 500, specifying the Material Present Validation Time Limit in
milliseconds.
When material enters the measurement volume, the system determines the time between
the Material Present signal and the first valid data. If the time is less than or equal to the
validation time limit (selectable via LaserTrak or the G command), then the start-up lengthcorrection is calculated and a length measurement is initialized. If the time between the
Material Present signal and the first valid velocity data is longer than the validation limit, then
the length calculation is aborted and an error or fault is sent. This error is signalled by
setting the length output (either in continuous output mode or Final Length Mode) to all 9’s.
Material Present Threshold Level
M
M
Read
Response Format:
M
Set
is an integer from 0 to 4095 that specifies relative threshold level of the Material Present
(MP) signal. When using Internal Material Present, the LS8000-3 determines if there is
something in the measurement area by measuring the amount of reflected light. This
measurement is compared to the threshold.
A setting of 0 would take very little light back on the detector to trigger MP. A setting of 4095
will take a lot of light on the detector to trigger MP. A good starting place is in the center of
the range.
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Velocity at Loss of Material
TP
TP
Read
Response Format:
TP
Set
is an integer either 0 or 1 indicating the Velocity at Loss of Material setting.
This setting can be used to force the measured Velocity and QF to 0 if Material Present is in
the "Material Not Present" state. This can be used, for example, to force the pulse outputs to
stop counting in some situations.
By default, the LS8000 Velocity and Quality Factor outputs are not affected by Material
Present.
Value
0
(default)
1
Description
Hold Last Reading
Velocity and Quality Factor are not affected by Material
Present state. The gauge will continue to measure if
possible, and will output the measured velocity. If
measurements are lost, and the last velocity was above
the Hold Velocity if Above setting, then the velocity output
will be held at this value.
Zero
Velocity and Quality Factory are both forced to zero when
in the "Material Not Present" state, regardless of whether
measurements are being made.
Hour Meter Current Value
H
H
Read Only Command
Response Format:
This command returns the total number hours that the gauge has been running.
Current & Max Temperature
I
I
Read Only Command
Response Format: ,
This command returns both the current internal temperature, and the maximum temperature
that has been recorded. Both temperatures are in Celsius. The values returned from the
LS8000-3 must be divided by 100 to get the temperature.
The normal temperature rise from ambient to internal is 10-15ºC.
Example:
Command: I
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Response: 3225,4538
Meaning:
Internal Temperature: 32.25ºC
Maximum Internal Temperature: 45.38ºC
Averaging Time
K
K
Read
Response Format:
K
Set
is an integer from 0 to 2047 that indicates the number of milliseconds of averaging for
the LS8000-3's measurements. This value should be set to 0 by default. This enables
automatic averaging.
The LS8000-3 generates a new velocity and length measurement, updates the pulse output
frequencies, and updates the analog output every 1ms. This setting controls the length of
the moving average used to calculate the 1ms reading.
User Update Rate
O
M
Read
Response Format:
M
Set
is an integer from 0 to 2047 that specifies, in milliseconds, how often the LS8000-3
transmits data over the serial/Ethernet port. For example, an O setting of 32 would cause
the LS8000-3 to transmit data every 32 milliseconds. Some typical update rates are:
O
Rate
Command
4 ms
Fast
O4
32 ms
Medium
100 ms
Slow
O32
O100
Depending on the baud rate, when using fast update rates, it may not be possible for the
LS8000-3 to complete transmission of an entire measurement update before it is time to
transmit the next one. If this occurs, the late measurement will not be transmitted. See the
Serial Real-Time Data Timing section for further details.
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Quality Factor Current Value
Q
Q
Read Only Command
Response Format:
is an integer from 0 to 15 indicating the current Quality Factor. A QF of 0 indicates that
the gauge is not currently making measurements, and a QF of 15 indicates that the gauge is
making excellent measurements.
This command returns the same value as you would normally receive from the TE data, or in
a response to the V command.
Reset Internal Length Count
R
R or
Command
R0
This command causes the LS8000-3 to reset its internal length count, and to reset the Index
Pulse location to 0.
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Length Reset Input Action
%
%
Read
Response Format:
%
Set
is an integer specifying the Length Reset Input Action mode. It can be any of the values
in the table below, but the default is 0.
This setting controls when the length reset input resets the length. Depending on the type of
output you have connected to the LS8000-3, you may wish to reset on either rising or falling
edge, or on a level. The dark lines in the figure below indicate where the length is reset.
Using an edge-triggered mode allows an instantaneous reset, and using a level triggered
mode allows you to reset the length and hold it at zero for a period of time.
Value
Mode
0
Level Triggered (Active High)
Input High = Reset, Input Low = Not
Reset
1
Level Triggered (Active Low)
Input Low = Reset, Input High = Not
Reset
2
Rising Edge Triggered
Reset on Low High Transition
3
Falling Edge Triggered
Reset on High Low Transition
4
Toggle Edge Triggered
Reset on High Low or on Low High
5
Length Reset Input Disabled
Input is ignored
Length Reset Value
$R
$R
Example
Read
Response Format:
$R
Set
is a positive or negative integer specifying the Length Reset Value scaled by 1,000.
This setting can be used to introduce a constant offset into the length measurement. This is
useful when measuring discrete parts using multiple external Material Present detectors.
The Length Reset Value can be set to the distance between the sensors in order to
automatically add the length onto each measurement. See the Connecting Material Present
Switches section for details.
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Example:
If using two external Material Present detectors and the detectors are mounted 4 feet apart,
you would set the Length Reset Value to 4 feet to automatically add 4 feet to each
measurement.
Assuming that the gauge's measurement units are in feet, to set the value to 4.000 ft, you
would send the command:
$R4000
Measurement Units
U
U
Read
Response Format:
U
Set
is an integer specifying the Measurement Units. When changing the measurement
units, be sure to update the Pulse/Length settings (L and P) if you want to maintain the same
pulse output frequency for a given speed.
Value
Units
0
m/s
1
ft/s
2
ft/min
3
m/min
4
in/min
5
mm/min
6
mm/s
7
yards/min
8
yards/s
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
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Walking Threshold
W
W
Read
Response Format:
W
Set
is an integer from 0 to 999,999,999 that is the walking velocity value multiplied by 1000.
When valid velocity measurements are made below this value, the velocity output and pulse
output will be forced to zero. When the velocity measurements are above this value, it has
no effect. The LS8000-3 compares the absolute value of the measured velocity to this
threshold. For example, say the W value is set to 1000, and the measurement units are
feet/minute. If the LS8000-3 measures velocities between -1 and +1 feet/minute, it will
output zero for the speed, and will not output pulses. If the velocity exceeds ±1 foot/minute,
the LS8000-3 will output measurements normally.
Setting this value to 0 disables the threshold.
This setting is used to prevent the LS8000-3 from sending velocity measurements and
pulses when the velocity is close to zero. If the product being measured is stopped, but
vibrating, the LS8000-3 will measure small velocities, both positive and negative. This
setting can be used to suppress those measurements.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
Minimum Final Length
X
X
Read
Response Format:
X
Set
is an integer from 0 to 999,999,999 that is the minimum final length value multiplied by
1000.
When a final length measurement completes, and the measured length is less than this
value, no final length will be transmitted over the serial port.
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Index Pulse Output Function
#
#
Read
Response Format:
#
Set
is an integer specifying the function of the Index Pulse output. This command
reconfigures the Index Pulse Output to be a status output.
Value
Index Pulse Output Function
0
(Default) Index (OPR) Pulse Output
1
Material Present Output
2
Valid Measurement Output
3
QF Pulse Output
4
QF Warning Output
5
Shutter Open
6
Laser On
7
System Ready
8
Thermostat Output (on @ 40C, off @ 35C)
9
Light Stack Green
10
Length Threshold A
Material Present Output
This output reflects the Material Present status. It is the same as the Material Present bit in
the status word of the serial output data.
Voltage High: Material is present
Voltage Low: Material is not present
Valid Measurement Output
This output indicates if the gauge is making valid measurements. The output is the same as
the Valid LED on the gauge.
Voltage High: Valid Measurements are being made
Voltage Low: No measurements are being made
QF Pulse Output
This output is a frequency output that indicates the current Quality Factor. A frequency of
100Hz indicates a QF of 0, and a frequency of 1kHz indicates a QF of 15. The frequency of
the output increases by 60Hz with each increase of 1 in the QF (100, 160, 220, 280, 340, …,
940, 1000)
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QF Warning Output
This output indicates when the QF has decreased below a threshold. This can be used as a
warning indicator to alert the user that the optics window may need to be cleaned, or other
maintenance may need to be performed. The QF threshold is configured with the &
command, and the QF Warning Timeout is configured with the < command.
Voltage High: QF is below threshold
Voltage Low: QF is at or above threshold
Shutter Open
Indicates if the beam shutter is open or closed. This is the same as the Shutter Open status
bit in the serial output message.
Voltage High: Beam Shutter is Open
Voltage Low: Beam Shutter is Closed
Laser On
Indicates if the gauge is emitting laser radiation. This is the same as the Laser On status bit
in the serial output message, and the Laser On LED.
Voltage High: Laser is On
Voltage Low: Laser is Off
System Ready
Indicates if the gauge is ready for operation. This status bit is on if all the following
conditions are met:
•
Laser is On – Laser Interlock (Pin 16) must be connected Signal Ground (Pin 11, 19,
or 21)
•
Beam Shutter is Open – Shutter Interlock (Pin 17) must be connected to Signal
Ground (Pin 11, 19, or 21)
•
Laser is at temperature
Thermostat Output
This output can be used to regulate the gauge temperature by using it to control a valve for
coolant. This output turns on when the internal gauge temperature increases above 40ºC,
and turns back off when the internal temperature decreases below 35ºC.
Voltage High: LS8000-3 Temperature > 40ºC (Turn on coolant)
Voltage Low: LS8000-3 Temperature < 35ºC (Turn off coolant)
Light Stack (Green)
This output can be used to drive a solid-state relay to turn on the green light in a light stack.
The green light is illuminated when the laser interlock is open, indicating that the LS8000-3 is
not emitting laser radiation. See the Light Stack Interface section for details.
Voltage High: Green lamp should be illuminated
Voltage Low: Green lamp should not be illuminated
Length Threshold A
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Indicates when the current length has exceeded the Length Threshold A set point. This
output is reset when the Index Pulse resets. See the Index Pulse & Length Thresholds
section for details about length thresholds.
Voltage High: Length Threshold A Exceeded
Voltage Low: Length Threshold A Not Exceeded
Index (OPR) Pulse Length
Y
Y
Read
Response Format:
Y
Set
is an integer from 0 to 255 that is the length of the Index (OPR) pulse in 10ms
increments.
Example:
You want to set the OPR Pulse length to 180ms.
Y = 180ms/10ms = 18.
Command: Y18
The time that the pulse is asserted does not vary with the measured velocity. When setting
this value, be sure to set the pulse length to a value less than the time that will elapse
between OPR pulses.
Index Pulse (OPR) Setting
!
!
Read
Response Format:
!
Set
is an integer specifying the number of User Scaleable Pulses per Index Pulse.
Range: 1 to 999,999,999
Example:
Assume that the User Scaleable Pulse Rate (configurable with the P command) has been
set to 1,000 pulses/foot.
To get an index pulse every 10 ft:
! = User Scaleable Pulse Rate (pulses/ft) x Desired Index Pulse Spacing (ft)
! = (1,000 pulses/ft) x 1 ft = 1,000 pulses
The command to set the correct value is !1000
To get an index pulse every 0.5 ft:
! = (1000 pulses/ft) x (0.5 ft) = 500 pulses
Command to set the correct value: !500
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Length Threshold A
$A
$A
Read
Response Format:
$A
Set
is an integer specifying the number of User Scaleable Pulses for Length Threshold A.
The Length Threshold A output will be asserted when this number of pulses has been
output, and will be reset when the Index Pulse triggers. This output can be used to perform
some operation prior to a cut.
Range: 0 to 999,999,999
Example:
Assume that the User Scaleable Pulse Rate (configurable with the P command) has been
set to 1000 pulses/foot, and Index Pulse is configured to output every 200 ft.
To assert the Length Threshold A output after 180 ft:
! = User Scaleable Pulse Rate (pulses/ft) x Length Threshold A setting (ft)
! = (1,000 pulses/ft) x 180 ft = 180,000 pulses
The command to set the correct value is $A180000
The output will clear when the length reaches 200ft, and the Index Pulse triggers. See the
Index Pulse & Length Thresholds section for timing details.
Length Threshold B
$B
$B
Read
Response Format:
$B
Set
is an integer specifying the number of User Scaleable Pulses for Length Threshold B.
The Length Threshold B output will be asserted when this number of pulses has been
output, and will be reset when the Index Pulse triggers. This output can be used to perform
some operation prior to a cut.
Range: 0 to 999,999,999
Example:
Assume that the User Scaleable Pulse Rate (configurable with the P command) has been
set to 1000 pulses/foot, and Index Pulse is configured to output every 200 ft.
To assert the Length Threshold B output after 190 ft:
! = User Scaleable Pulse Rate (pulses/ft) x Length Threshold A setting (ft)
! = (1,000 pulses/ft) x 190 ft = 190,000 pulses
The command to set the correct value is $B190000
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The output will clear when the length reaches 200ft, and the Index Pulse triggers. See the
Index Pulse & Length Thresholds section for timing details.
High Speed Pulse Output Configuration
$H
$H
Read
Response Format:
$H
Set
is an integer that specifies the function of the High Speed Pulse Output. The various
outputs were described previously in the Index Pulse Output Function description.
Pulse Output Function
Value
Phase A
Phase B
0
Default (High Speed Pulse Outputs)
1
System Ready
Material Present
2
System Ready
Valid
3
System Ready
QF Pulse Output
4
System Ready
QF Warning Output
5
System Ready
Shutter Open
6
System Ready
Laser On
7
System Ready
Thermostat Output
8
Valid
Thermostat Output
9
Pulse Phase A
Sync Output
Note: Some of the above outputs were previously described under the Index Pulse Output
Function setting.
Sync Output
Gauge-Gauge Synchronization Output that can be connected between multiple gauges in
order to synchronize measurements. See the Gauge-Gauge Synchronization section for
details.
High Speed Pulse Rate
L
L
Read
Response Format:
L
Set
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is an integer from 0 to 999,999,999 that is the number of pulses per unit length scaled
by 1000.
The High Speed Pulse Output can output pulses at rates higher than 5MHz. Caution should
be used to ensure that the maximum line speed encountered during operation does not
cause the pulse output frequency to exceed the maximum frequency of the counter. If the
pulse frequency exceeds the counter maximum frequency, the counter may behave
erratically.
Example:
Want 5750 pulses/meter
Measurement Units are meters/minute
Pulses/Length = 5750 x 1000 = 5750000
Command to set the value is: L5750000
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
User Scaleable Pulse Output Configuration
$L
$L
Read
Response Format:
$L
Set
is an integer that specifies the function of the User Scaleable Pulse Output. The various
status outputs were described previously in the Index Pulse Output Function description.
Pulse Output Function
Value
Phase A
Phase B
0
Default (High Speed Pulse Outputs)
1
System Ready
Material Present
2
System Ready
Valid
3
System Ready
QF Pulse Output
4
System Ready
QF Warning Output
5
System Ready
Shutter Open
6
System Ready
Laser On
7
System Ready
Thermostat Output
8
Valid
Thermostat Output
9
Light Stack (Yellow)
Light Stack (Red)
10
Pulse Phase A
Length Threshold B
11
Length Threshold A
Length Threshold B
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Note: Some of the above outputs were previously described under the Index Pulse Output
Function setting.
Light Stack (Yellow)
This output can be used to drive a solid-state relay to turn on the yellow light in a light stack.
The yellow light is illuminated when the LS8000-3 laser is turned on, but the beam shutter is
closed, indicating that the LS8000-3 is not emitting laser radiation. See the Light Stack
Interface section for details.
Voltage High: Yellow lamp should be illuminated
Voltage Low: Yellow lamp should not be illuminated
Light Stack (Red)
This output can be used to drive a solid-state relay to turn on the red light in a light stack.
The red light is illuminated when the LS8000-3 laser is turned on, and the beam shutter is
open, indicating that the LS8000-3 is emitting laser radiation. See the Light Stack Interface
section for details.
Voltage High: Yellow lamp should be illuminated
Voltage Low: Yellow lamp should not be illuminated
Length Threshold A
Indicates when the current length has exceeded the Length Threshold A set point. This
output is reset when the Index Pulse resets. See the Index Pulse/Length Thresholds section
for details about length thresholds.
Voltage High: Length Threshold A Exceeded
Voltage Low: Length Threshold A Not Exceeded
Length Threshold B
Indicates when the current length has exceeded the Length Threshold B set point. This
output is reset when the Index Pulse resets. See the Index Pulse/Length Thresholds section
for details about length thresholds.
Voltage High: Length Threshold A Exceeded
Voltage Low: Length Threshold A Not Exceeded
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User Scaleable Pulse Rate
P
P
Read
Response Format:
P
Set
is an integer from 0 to 999,999,999 that is the number of pulses per unit length scaled
by 1000.
The User Scaleable Pulse Output can output pulses at rates higher than 250kHz. Caution
should be used to ensure that the maximum line speed encountered during operation does
not cause the pulse output frequency to exceed the maximum frequency of the counter.
Many counters have surprisingly low maximum frequency specifications. If the pulse
frequency exceeds the counter maximum frequency, the counter may behave erratically.
Example:
Want 100 pulses/inch
Measurement Units are inches/minute
Pulses/Length = 100 x 1000 = 100000
Command to set the value is: P100000
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
Read Firmware Version
Z
Z
Read Only Command
Response Format: LS8KV*
Where * is a capital letter indicating the firmware version.
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COM LED Function
$C
$C
Read
Response Format:
$C
Set
is either 0 or 1. This setting controls the function of the COM LED on the LS8000-3.
This is a Blue-Orange LED on top of the gauge that indicates communications status. This
value should be set to 0 if your LS8000-3 does not have the Ethernet option installed.
Value
COM LED
0
RS-232/RS-422 Traffic
1
Ethernet Status/Traffic
RS-232/RS-422 Traffic
The Orange LED blinks when the LS8000-3 sees activity on the RS-232 or RS-422 receive
lines. This does not indicate that the LS8000-3 understood the message, only that it saw the
voltage change (the baud rate may be incorrect.) This is a diagnostic feature to allow easy
wiring verification.
The Blue LED blinks when the LS8000-3 transmits on either the RS-232 or RS-422 ports. If
the light is continuously blue, then the LS8000-3 is transmitting continuously.
When orange and blue are lit at the same time, the LED is white.
Ethernet Status/Traffic
LED Status
Meaning
OFF
No Connection
Orange
Link
Blue
Activity
White
Collision
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Setting Lock
*LOCKED
*LOCKED?
Read
Response Format: *LOCKED=
*LOCKED=
Set
is either 0 or 1. This setting controls the Settings Lock. In order to prevent accidental
changes to the LS8000-3's configuration settings, you must explicitly unlock the settings
before any changes can be made.
Unlock Command: *LOCKED=0
Relock Command: *LOCKED=1
After unlocking the settings with *LOCKED=0, you can change settings. If you try to
change setting without unlocking the LS8000-3, the changes will be ignored.
The LS8000-3 will automatically re-arm the Setting Lock after 1 minute.
Setting Lock Enabled
*LOCKEN
*LOCKEN?
Read
Response Format: *LOCKEN=
*LOCKEN=
Set
is either 0 or 1. If you are manually changing many settings over a period of time, the
Settings Lock can a become nuisance, so you may wish to disable it. Before the Settings
Lock can be disabled, however, the settings must be unlocked:
To disable Settings Lock:
*LOCKED=0
*LOCKEN=0
To re-enable Settings Lock:
*LOCKEN=1
The Settings Lock should be re-enabled after configuration is completed, and the LS8000-3
is to be placed into normal operation.
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Gauge Model and Serial Number
*GINFO
*GINFO? Read Only Command
Response Format: *GINFO=
This read-only command can be used to read back the LS8000-3 model number and serial
number. The text before the # character indicates the Model Number, and the text after the
# character indicates the Serial Number.
Example:
Command: *GINFO?
Response: *GINFO=LS8000-310X#1234-567-890
This response indicates a model number of "LS8000-310X", and a serial number of "1234567-890"
Ethernet Enabled
*ETHERNET
*ETHERNET?
Read Only Command
Response Format: *ETHERNET=
This is a read-only command that returns 1 if the Ethernet option is installed, and 0 if the
Ethernet option is not installed.
If the Ethernet option is not installed, then all Ethernet settings can be disregarded.
Ethernet Hardware ID
*MACID
*MACID?
Read Only Command
Response Format: *MACID=
This read-only command returns the Ethernet hardware ID. Each LS8000-3 is assigned a
unique identifier, even if the Ethernet option is not installed.
This setting can be disregarded if the Ethernet option is not installed.
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DHCP Enable/Disable
*DHCP
Read
*DHCP?
Response Format: *DHCP=
Set
*DHCP=
is an integer, either 0 or 1. This controls whether or not the gauge attempts to connect
to a DHCP (Dynamic Host Configuration Protocol) server and receive a network address
automatically. If you are connecting directly to a PC with a crossover cable, this option
should be disabled.
If this setting is changed, the new value will take effect after a power cycle.
Value
Effect
IP Address
DHCP Disabled
0
The LS8000-3 will not attempt to automatically
obtain an address from a DHCP server. The IP
Address, Netmask, and Default Gateway will be
read from non-volatile memory.
Read from
Non-Volatile
Memory
DHCP Enabled
1
The LS8000-3 will attempt to automatically obtain
an address from the DHCP server. The IP
Address, Netmask, and Default Gateway will be
read from the server, and the settings stored in
non-volatile memory will be ignored.
Automatic
If you are unsure as to whether or not you have a DHCP server on your network, contact
your system administrator.
This setting can be disregarded if the Ethernet option is not installed.
Note: This setting will take effect after a power-cycle.
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Hostname
*NAME
Read
*NAME?
Response Format: *NAME=
*NAME=
Set