MS-3 Laser Scanner User Manual

MS-3 Laser Scanner User Manual
MS-3 Laser Scanner
User Manual
P/N 84-000003 Rev B
Copyright and Disclaimer
Copyright ©2015
Microscan Systems, Inc.
Tel: +1.425.226.5700 / 800.762.1149
Fax: +1.425.226.8250
All rights reserved. The information contained herein is proprietary and is provided solely for the purpose of allowing customers to operate and/or service Microscan manufactured equipment and is not to be
released, reproduced, or used for any other purpose without written permission of Microscan.
Throughout this manual, trademarked names might be used. We state herein that we are using the names
to the benefit of the trademark owner, with no intention of infringement.
Disclaimer
The information and specifications described in this manual are subject to change without notice.
Latest Manual Version
For the latest version of this manual, see the Download Center on our web site at:
www.microscan.com.
Technical Support
For technical support, e-mail: [email protected]
Warranty
For current warranty information, see: www.microscan.com/warranty.
Microscan Systems, Inc.
United States Corporate Headquarters
+1.425.226.5700 / 800.762.1149
United States Northeast Technology Center
+1.603.598.8400 / 800.468.9503
European Headquarters
+31.172.423360
Asia Pacific Headquarters
+65.6846.1214
ii
MS-3 Laser Scanner User Manual
Introduction
Table of Contents
Chapter 1
Quick Start
Step 1 Check Hardware .......................................................................... 1-2
Step 2 Connect the System ..................................................................... 1-3
Step 3 Position Symbol and Scanner ...................................................... 1-4
Step 4 Install ESP.................................................................................... 1-5
Step 5 Select Scanner Model .................................................................. 1-6
Step 6 Autoconnect ................................................................................. 1-7
Step 7 Test for Read Rate ....................................................................... 1-8
Step 8 Calibrate the Scanner .................................................................. 1-9
Step 9 Save Calibration Settings for Power-On .................................... 1-10
Step 10 Configure the Scanner ............................................................. 1-11
Chapter 2
Using ESP
Setup Mode ............................................................................................. 2-2
Application Mode ..................................................................................... 2-3
Dropdown Menus .................................................................................... 2-4
Connect Menu ........................................................................................ 2-9
View ...................................................................................................... 2-11
Navigating in ESP.................................................................................. 2-12
Send/Receive Options ........................................................................... 2-13
Chapter 3
Communications
Communications by ESP......................................................................... 3-2
Communications by Serial Command ..................................................... 3-2
Password Protection................................................................................ 3-3
RS-232/422 Host Port ............................................................................. 3-4
RS-232 Auxiliary Port ............................................................................ 3-11
Preamble ............................................................................................... 3-20
Postamble.............................................................................................. 3-21
LRC Status ............................................................................................ 3-22
Intercharacter Delay .............................................................................. 3-22
Chapter 4
Read Cycle
Read Cycle by ESP ................................................................................. 4-2
Read Cycle by Serial Command ............................................................. 4-2
Multisymbol.............................................................................................. 4-3
Number of Symbols ................................................................................. 4-4
Serial Trigger ......................................................................................... 4-12
End of Read Cycle................................................................................. 4-14
Decodes Before Output ......................................................................... 4-16
Scanner Setup ....................................................................................... 4-17
Laser Setup ........................................................................................... 4-21
Chapter 5
Symbologies
Symbologies by ESP ............................................................................... 5-2
Symbologies by Serial Command ........................................................... 5-2
MS-3 Laser Scanner User Manual
iii
Table of Contents
Code 39 ................................................................................................... 5-3
Code 128 ................................................................................................. 5-6
Interleaved 2 of 5................................................................................... 5-10
Codabar................................................................................................. 5-13
UPC/EAN .............................................................................................. 5-16
Code 93 ................................................................................................. 5-19
Pharmacode .......................................................................................... 5-20
Narrow Margins ..................................................................................... 5-22
Symbology ID ........................................................................................ 5-23
Background Color.................................................................................. 5-24
Autodiscriminate .................................................................................... 5-24
Symbol Ratio Mode ............................................................................... 5-25
Chapter 6
I/O Parameters
Output Conditions by ESP Menu............................................................. 6-2
I/O Parameters by Serial Command ....................................................... 6-3
Symbol Data Output ................................................................................ 6-4
Message Output ...................................................................................... 6-7
No Read Message................................................................................... 6-8
Bad Symbol Message ............................................................................. 6-9
No Symbol Message ............................................................................. 6-10
Beeper................................................................................................... 6-11
Partial Output ........................................................................................ 6-12
Serial Verification .................................................................................. 6-13
EZ Button .............................................................................................. 6-15
Output 1................................................................................................. 6-18
Output 2................................................................................................. 6-24
Output 3................................................................................................. 6-25
Quality Output ....................................................................................... 6-26
Chapter 7
Matchcode
Matchcode by ESP .................................................................................. 7-2
Matchcode by Serial Command .............................................................. 7-2
Overview of Matchcode ........................................................................... 7-3
Using Master Symbols ............................................................................ 7-3
Matchcode Type ...................................................................................... 7-4
New Master Pin ....................................................................................... 7-9
Master Symbol Database ...................................................................... 7-10
Chapter 8
Diagnostics
Diagnostics by ESP ................................................................................. 8-2
Diagnostics by Serial Command ............................................................. 8-2
Diagnostic Messages Overview .............................................................. 8-3
Counts ..................................................................................................... 8-4
Hours Since Last Reset........................................................................... 8-6
Laser High ............................................................................................... 8-7
Laser Low ................................................................................................ 8-8
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MS-3 Laser Scanner User Manual
Introduction
Service Message ..................................................................................... 8-9
Chapter 9
Calibration
Calibration ............................................................................................... 9-2
Auto Frame .............................................................................................. 9-6
Chapter 10
Terminal
Terminal Window ................................................................................... 10-2
Find Function ......................................................................................... 10-3
Macros................................................................................................... 10-4
Terminal Window Functions .................................................................. 10-5
Chapter 11
Utilities
Utilities by ESP ...................................................................................... 11-2
Summary of Utilities Commands ........................................................... 11-3
Read Rate ............................................................................................. 11-5
Counters ................................................................................................ 11-6
Master Database ................................................................................... 11-8
Digital Bar Code .................................................................................. 11-11
Firmware.............................................................................................. 11-12
Device Control ..................................................................................... 11-13
Symbol Type........................................................................................ 11-15
Defaulting/Saving/Resetting ................................................................ 11-16
Microscan Grading .............................................................................. 11-17
Reader Status Requests ..................................................................... 11-19
Appendices
Appendix A General Specifications .........................................................A-2
Appendix B Electrical Specifications .......................................................A-5
Appendix C Serial Configuration Commands ..........................................A-6
Appendix D Serial Command Format ......................................................A-9
Appendix E ASCII Table ........................................................................A-11
Appendix F Defaulting/Saving/Resetting ...............................................A-13
Appendix G Symbol Configuration ........................................................A-15
Appendix H Object Detector ..................................................................A-17
Appendix I Formulas for Number of Decodes .......................................A-18
Appendix J Operational Tips .................................................................A-21
Appendix K Interface Standards ............................................................A-22
Appendix L Multidrop Communications .................................................A-23
Appendix M Troubleshooting .................................................................A-28
Appendix N Glossary of Terms..............................................................A-30
MS-3 Laser Scanner User Manual
v
About the MS-3 Laser Scanner
About the MS-3 Laser Scanner
The MS-3 is an ultra-compact scanner that can decode high density symbols from 2 to 10
inches at a 70 degree scan angle, at speeds of 300 to 1,000 decodes per second, with a
power draw of only 300mA at 5V. The multi-function EZ button can be used for read rate
tests and automatic calibration right out of the box, and it can also be programmed to perform a variety of other functions.
Programmable firmware also allows considerable control of multiple features, including
three programmable relay outputs and new master and trigger inputs.
The scanner can be configured with ESP (Easy Setup Program), Microscan’s proprietary
scanner setup software. ESP can be downloaded from the Microscan website at
www.microscan.com. You must be running Microsoft Windows 2000 or higher to use ESP.
Scanner Communication
There are five ways to program the scanner:
1. Microscan’s Windows-based ESP, which offers point-and-click ease of use and
visual responses to user adjustments.
2. Serial commands such as <K100,1> can be sent from ESP’s Terminal or another
terminal program.
3. Embedded firmware (onboard menus).
4. Symbol configuration.
5. The EZ Button on the top of the scanner.
Note: You can learn the current setting of any parameter by inserting a question mark after
the command number, as in <K100?> To see all “K” commands, send <K?>.
vi
MS-3 Laser Scanner User Manual
Introduction
Warning and Caution Summary
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy, and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communication. However,
there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna;
• Increase the separation between the equipment and receiver;
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected;
• Consult the dealer or an experienced radio/TV technician for help.
For connection to a UL-listed direct plug-in power unit marked Class II and rated 10 to 28
VDC at 5 watts or greater.
European models must use a similarly rated Class I or Class II power supply that is certified
to comply with standard for safety EN 60950.
Use of controls, adjustments, or performance of procedures other than those specified
herein may result in hazardous laser light radiation exposure.
There are no user-serviceable parts in the scanner. Opening the scanner voids the Microscan
Systems, Inc. warranty and could expose the user to laser diode power.
The laser beam can be harmful to eyesight. Avoid eye contact with the laser beam. Never
point the beam at other people, or in a direction where people may be passing.
MS-3 Laser Scanner User Manual
vii
Warning and Caution Summary
Warning and Caution Summary (cont.)
The following label is located on side of the MS-3 Laser Scanner:
•
•
•
•
•
•
Embedded Laser Diode - 650nm, 12mW
Wavelength: 650nm
Beam Divergence: 0.6˚ (typ.)
Pulse Duration: 38µs
Maximum Power: 1mW
Standard - IEC-60825-1 Ed. 2(2007)
Location of the MS-3’s laser aperture:
Laser Aperture
CAUTION: Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
IMPORTANT: The MS-3 is intended for connection to a UL-listed direct plug-in power unit
marked Class 2 and rated 5 VDC at 3.5 Watts, or greater if using electrical accessories.
European models must use a similarly rated Class 1 or Class 2 power supply that is certified
to comply with standard for safety EN 60950.
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MS-3 Laser Scanner User Manual
Introduction
Warning and Caution Summary (cont.)
Warning Label Placement
These labels are located on the MS-3 Laser Scanner:
MS-3 Laser Scanner User Manual
ix
Statement of Agency Compliance
Statement of Agency Compliance
This device has been tested in accordance with IEC 60825-1 2nd ed., and has been certified
to be under the limits of a Class 2 Laser device.
The MS-3 has been tested for compliance with FCC (Federal Communications Commission)
regulations and has been found to conform to all applicable FCC Rules and Regulations.
To comply with FCC RF exposure compliance requirements, this device must not be co-located
or operate in conjunction with any other antenna or transmitter.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
The MS-3 has been tested for compliance with CE (Conformité Européenne) standards
and guidelines, and has been found to conform to applicable CE standards, specifically
the following requirements:
Radiated Emissions: EN 55022:2006 Class A 30-1000 MHz
Conducted Emissions: EN 55022:2006 Class A .15-30 MHz
The MS-3 has been tested by an independent electromagnetic compatibility laboratory in
accordance with the applicable specifications and instructions.
The MS-3 is compliant with FDA performance standards for laser products except for
deviations pursuant to laser notice no. 50, dated June 24, 2007.
x
MS-3 Laser Scanner User Manual
Introduction
Statement of RoHS Compliance
All Microscan readers with a ‘G’ suffix in the FIS number are RoHS-Compliant. All compliant
readers were converted prior to March 1, 2007. All standard accessories in the Microscan Product
Pricing Catalog are RoHS-Compliant except 20-500013-01 and 98-000039-02. These products
meet all the requirements of “Directive 2002/95/EC” European Parliament and the Council of
the European Union for RoHS compliance. In accordance with the latest requirements, our
RoHS-Compliant products and packaging do not contain intentionally added Deca-BDE,
Perfluorooctanes (PFOS) or Perfluorooctanic Acid (PFOA) compounds above the maximum
trace levels. To view the document stating these requirements, please visit:
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32002L0095:EN:HTML
and
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2006:372:0032:0034:EN:PDF
Please contact your sales manager for a complete list of Microscan’s RoHS-Compliant products.
This declaration is based upon information obtained from sources which Microscan believes to be reliable, and
from random sample testing; however, the information is provided without any representation of warranty,
expressed or implied, regarding accuracy or correctness. Microscan does not specifically run any analysis on our
raw materials or end product to measure for these substances.
The information provided in this certification notice is correct to the best of Microscan’s knowledge at the date of
publication. This notice is not to be considered a warranty or quality specification. Users are responsible for
determining the applicability of any RoHS legislation or regulations based on their individual use of the product.
In regards to “RoHS Directive 2011_65_EU” Microscan produces Monitoring and Control Instruments as well as
Industrial Monitoring & Control Instruments as defined within the directive. Microscan has developed and is
implementing a RoHS2 compliance plan with the intention of bringing all active products listed in our current
marketing literature within full compliance as per the directive deadlines.
Key milestones for the transition plan are as follows:
• Complete internal product audit by July 2014.
• Initial “Monitoring and Control Instruments” RoHS2 compliant products available by December 2014
• Initial “Industrial Monitoring & Control Instruments” RoHS2 compliant products available by July 2015
• All new products introduced in 2015 are expected to be WEEE & RoHS2 compliant.
Microscan will mark the products with the ‘CE’ marking that complies with the RoHS2 process to acquire ‘CE’ certification
per the example given: Example >> Machinery directive + EMC directive + RoHS2 = Declaration of Conformity.
MS-3 Laser Scanner User Manual
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MS-3 Laser Scanner User Manual
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Chapter
Quick Start
11
Chapter Contents
Step 1 Hardware Required ..........................................................................1-2
Step 2 Connect the System.........................................................................1-3
Step 3 Position Symbol and Scanner ..........................................................1-4
Step 4 Install ESP .......................................................................................1-5
Step 5 Select Reader Model ........................................................................1-6
Step 6 Autoconnect .....................................................................................1-7
Step 7 Test for Read Rate...........................................................................1-8
Step 8 Calibrate the Reader........................................................................1-9
Step 9 Save Calibration Settings for Power-On .........................................1-10
Step 10 Configure the Reader ...................................................................1-11
This section is designed to get the scanner up and running quickly so the user can get a
sense of its capabilities and test sample bar code symbols. Detailed setup information
for configuring the scanner for your specific application can be obtained in the subsequent chapters.
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Step 1 — Hardware Required
Caution: If using your own power supply (see “Warning and Caution Summary” on
page i-xi), be certain that it is wired correctly and supply voltage is 10 to 28 VDC.
Incorrect wiring or voltage can cause software or equipment failures.
If connecting to a host with an IB-131 Interface box, you will need the following:
Itema
Part Number
1
FIS-0003-XXXXG
2
FIS-0001-0035G
3
99-000018-01
4
5
61-300026-03
97-100004-15
6
(90-264 VAC, 24VDC)
99-000017-01
7
Description
MS-3 laser scanner
IC-332 Interface converter
IB-131 Interface box
Host computer
Null modem configuration cable
Power supply
Optional object detector
a. See figure 1-1 for diagram of system.
1
2
3
Scanner
Host
5
Network
4
6
Figure 1-1 Hardware Required
1-2
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Chapter 1 Quick Start
Step 2 — Connect the System
Caution:
• Be sure all cables are connected BEFORE applying power.
• Always power down BEFORE disconnecting any cables.
To connect the system, do the following:
(Refer to “IB-131 Interface” on
page A-8 for pin connections.)
4. Connect power supply (6) to the
IB-131 “POWER” connector.
5. Apply power to the system.
1
2
3
Scanner
5
6
Network
4
Host
1. Connect the scanner (1) to the
“SCANNER” connector on the
IC-332 interface converter (2)
using the attached 3-foot cable.1
2. Connect the IC-332 directly to the
“SCANNER” 15 pin connector on the
IB-131 (3).
3. Connect the host computer (4) to
the IB-131 “HOST” 25-pin connector via the null modem cable (5).2
7
Figure 1-2 Hardware Connections
1. Since power supply is included in the single cabling assembly, the reader cable should not
exceed 3 feet. RS232 cabling from the IB-131 to the host can be up to 47 feet provided it does
not include power input.
2. If using your own null modem RS232 host cable, be certain that the host’s TxD connects to the
reader’s RxD and the reader’s TxD connects to the host’s RxD.
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Step 3 — Position Symbol and Scanner
Note: Code 39 is the default code type enabled. If you are uncertain as to your symbology type, enable all codes by selecting the Auto Discriminate macro in Terminal
mode.
1. Set up a symbol at the scanning distance you are using in your application.1
(See “Read Ranges” on page A-3.)
2. Avoid bright light or IR light from other sources, including other scanners.
3. Pitch symbol or scanner slightly to avoid specular reflection, the return of direct,
non-diffused light.
Bar code
symbol
Skew
axis
Tilt
axis
Scanner
Pitch
axis
Scan line
Figure 1-3 Symbol/Scanner Position
Note: If using an I 2/5 symbol, verify that the number of characters in the symbol being
scanned matches the symbol length enabled for the I 2/5 symbol type. (Default is 10 and 6.)
See “Interleaved 2 of 5” on page 5-13.
1. Consult table A-1 and table A-2 on page A-3.
1-4
MS-3 Laser Scanner User Manual
Quick Start
Step 4 — Install ESP
(ESP stands for Easy Setup Program.)
Once your scanner is connected to a host computer with Windows™ operating system
(XP or above), you can use ESP (Easy Setup Program) for configuration and control.
To install ESP from the Microscan Tools Drive:
• Insert your Microscan Tools Drive into a USB port on your computer.
• Click Setup.exe and follow the prompts.
To download ESP from the Web:
• Go to www.microscan.com.
• Click Setup.exe and follow the prompts.
• At the end of the install process, copy a shortcut ESP icon onto your desktop.
• Click the ESP icon to run the program.
Minimum System Requirements
• 233 MHz Pentium PC
• Windows 8, 7, Vista, or XP operating system (32-bit or 64-bit)
• Internet Explorer 6.0 or higher
• 128 MB RAM or greater
• 160 MB free disk space
• 800 x 600 256 color display (1024 x 768 32-bit color recommended)
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Step 5 — Select Reader Model
When you start the program, the following menu will appear.
Note: If you need to select another model later, you can find it in the App Mode under
Model on the menu bar.
1. Select MS-3 laser from the menu and click OK.
If you do not want to make this selection every time you load ESP, uncheck Show
this window at Startup.
2. Select the default name, for example MS-3 Laser-1, or type in a file name of
your choice and click OK.
3. Click Yes when the connect to the reader dialog appears.
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Chapter 1 Quick Start
Step 6 — Autoconnect
1. In the Connecting to... dialog, if your communications port is not the default
COM1, use the pull down arrow to change your communications port.
2. Click the Start button.
When connected, the CONNECTED message will appear in a green box in the status bar on the bottom right of the dialog.
3. If connection fails, enable a different Com port, check connections, and try again.
Tip: If you do not see either the CONNECTED or DISCONNECTED message at the bottom of your dialog, try expanding the ESP window horizontally.
Important Note: When you connect to the reader, the reader’s settings will be loaded
into ESP.
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Step 7 — Test for Read Rate
With this test you can learn the percentage of decodes per images captured by observing the LEDs (20% through 100%) on the top of the MS-3 which are active during a
read rate test. If the results are not satisfactory, move on to “Calibrate the Reader”
on page 1-9.
By ESP
After connecting to the scanner, ESP will open in Easy Setup Mode.
1. Click the EZ Button in Easy Setup Mode to begin the read rate test.
2. Follow the instructions in Easy Setup Mode screen.
3. To end the Read Rate test, click the Stop button.
EZ Button
Read rate
performance
LEDs
T ES T
100% GR
80% ST
60%
40%
20%
PWR
Laser
1. Press and hold the EZ Button
on the MS-3 until you hear one
beep and see o
ne LED momen-tarily turn
amber. This will signal the
beginning
routine.1 of the read rate
2. To end the read rate test press
the EZ Button and quickly
release.
MS-3
By the EZ Button
1 1- 0000 63-0 1
1. This assumes that the default functions of the EZ Button have not been re-programmed.
1-8
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Chapter 1 Quick Start
Step 8 — Calibrate the Reader
If, after doing the read rate test, the results are not satisfactory, try the calibration routine.
During the calibration routine, the scanner attempts various settings to determine the
optimum decode rate for the given conditions. In this process it might do the following:
• Adjust laser power
• Adjust mirror motor speed
• Adjust AGC gain
• Enable Autodiscrimination
(read several symbol types)
The test will end automatically when the optimum combination of settings has been
achieved.
By ESP
Click the Calibrate button in Easy Setup Mode to begin the read rate test.
You can observe the progress of the calibration routine on the Calibration popup.
Note: You can also calibrate the scanner in the Calibration menu in the Apps Mode.
EZ Button
TEST
Read rate
performance
LEDs
100% GR
80% ST
60%
40%
20%
PWR
LASER
Press and hold the EZ Button
until you hear two beeps and see
two amber performance LEDs turn
amber to indicate that the calibration is in progress.
The scanner will beep once at the
end of calibration.
MS-3
By the EZ Button
11-000063-01
Figure 1-4 Calibration
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Step 9 — Save Calibration Settings for Power-on
After calibrating the MS-3, you can save your new settings to be available on power-on.
By ESP
Caution: If you have settings in the scanner that you have not yet loaded into ESP, the
ESP settings will overwrite the scanner’s settings when you save. Under these conditions, it is highly recommended that you first do Receive Reader Settings before you
save for power-on.
After testing and/or calibrating the scanner, you can save the settings for power-on by
clicking the Save button.
EZ Button
T ES T
Read rate
performance
LEDs
100% GR
80% ST
60%
40%
20%
PWR
LASER
Press and hold the EZ Button until
you hear three beeps and see three
performance LEDs momentarily turn
amber.1
MS-3
By the EZ Button
1 1- 0000 63-0 1
Figure 1-5 Save Settings
1. This assumes that the default functions of the EZ Button have not been re-programmed.
1-10
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Chapter 1 Quick Start
Step 10 — Configure the Reader
See the succeeding chapters and Appendices to see specific configuration command
explanations for both ESP and serial commands.
By ESP
To change reader settings, or to access the utilities or terminal window, click on the
App Mode button.
See Chapter 2, “Using ESP.”
By Serial Commands
From your terminal program or the terminal screen in ESP, you can enter serial string
commands and configuration and utility commands as described in this manual.
See “Serial Configuration Commands” on page A-13 and “Summary of Utilities
Commands” on page 11-3.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?> To see all “K” commands, send <K?>.
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Chapter
Using ESP
2
Chapter Contents
Setup Mode .................................................................................................2-2
Application Mode .........................................................................................2-3
Pulldown Menus ..........................................................................................2-4
Connect Menu .............................................................................................2-9
View...........................................................................................................2-11
Navigating in ESP .....................................................................................2-12
Send/Receive Options...............................................................................2-13
This section is designed to help you understand the structure, elements, and application
of the ESP (Easy Setup Program).
When you start up ESP, unless otherwise specified, you will enter the Setup Mode for
initial setup. From there, you move easily into the App Mode (application mode) where
you can access several configuration and utilities menus.
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Setup Mode
Setup Mode
In Setup Mode you are presented with the Test option and if appropriate for your
application, Calibration. After connecting to your scanner (or reader) the Setup Mode
will first appear. This will provide you with instructions specific to your model that will
help you in positioning, testing, and if appropriate, calibrating.
Test
Click the Test button to start the read rate test for a quick indication of the read capabilities and the limits of your application. When Decodes per Second is unchecked,
the test will count the percentage of decodes relative to the number of actual scans.
Click Stop to end the test.
Calibrate
Some models include a calibration routine that will optimize reads by comparing read
rates at various settings in focal lengths, scan speeds, and gain settings.
Test button
Click here to change
from percentage of
good decodes to
decodes per second
Calibration is available on some models
Note: This view may be
slightly different for each
model.
Saves Calibration
results (if available)
Ends the read rate
test
On some models, clicking Auto Discriminate
will enable most available symbology types.
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Chapter 2 Using ESP
Application Mode
From Setup Mode, you can click on the App Mode button to access specific configuration menus, utilities, and a terminal window where serial commands can be entered.
Note that the App Mode and Setup Mode buttons appear in the same position to allow
easy switching between these primary modes.
The icons on this
toolbar are for operations
Click here to open
a terminal window
Click here to
access read rate
and other utilities
Pulldown menus
Click this icon to
return to Easy
Setup mode
Click this icon to
return to this view
from Utilities or
Terminal
Click on icons in this
toolbar to access
configuration menu
trees to make specific changes in configuration
Note: This view may be
slightly different for
each model.
Note: For specific information on any of the icons shown above in the operations bar or
configuration bar, see specific chapters in this document.
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Pulldown Menus
Pulldown Menus
File
New
Whenever New is selected, the default configuration of
ESP is loaded.
Open/Save
When Save or Save As is selected, the ESP configuration is saved to the host computer’s hard drive and
available whenever the same file is selected under
Open.
Important: When you save menu changes to your
hard drive, these changes are not saved to your reader.
Figure 2-1 shows how settings can be saved and
received between ESP and the reader and ESP and the
host hard drive.
Receive Reader Settings
ESP
Reader
Save to Reader
File
Save
File
Open
Host hard
drive
Figure 2-1 How Settings are Saved
Import/Export
Import converts the ASCII settings from a text file to ESP configuration settings.
Export converts the active ESP configuration settings to an ASCII text file.
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Chapter 2 Using ESP
Model
In Model you can select between models. When you choose
another model, your current connection with your present model
will be terminated.
To connect to another model, select New Model, choose a new
model and click OK.
Note that all the models you have enabled by selecting will continue to appear in the Model menu and that the same menu is
repeated when clicking the Switch Model icon.
When you save your ESP file, you will be saving the settings of all the models defined in
a single ESP file.
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Pulldown Menus
Options
You can use the Options menu
save memos and set up ESP
Preferences.
Note: Preferences will be saved
and be loaded into ESP when
ESP is opened next, whether or
not you save the ESP file to the
computer.
Preferences
General tab
Reload Last File
At startup, reloads the last file
saved to the computer.
Show Model Prompt
At startup, remembers the last connected model and displays it in the Connecting...
dialog whenever you attempt to connect.
Skip Easy Mode
At startup, Skips the Easy Mode and opens directly in the application mode.
Show Connect Prompt
At startup, displays the Would you like to connect... prompt.
Receive After Connect
At startup, loads the reader’s settings into ESP. (This is not recommended if you want to
preserve your ESP settings for future use.)
Enable ‘Send and Save as Factory Settings’
At startup, enables the Send and Save as Factory option in the Send/Recv command.
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Chapter 2 Using ESP
Terminal tab
When Show Non-Printable
Characters is checked, characters such as CRLF will be displayed in the terminal window.
When Enhanced Format is
checked, the characters are displayed with more detailed formatting.
Change Keyboard Macros
In this dialog you can first select
the function key and then enter
your macro keystrokes in the
associated key map. For example, to make Ctrl-F5 the keystroke to enable send a trigger
character, select F5, then in the
Ctrl row, enter <trigger character> and click OK. Then whenever the Ctrl-F5 keystroke is pressed, the trigger character will start the read cycle.
Change Font
Sets the font characteristics for the commands that you type in the terminal window.
Change Echo Font
Sets the font characteristics for text that is echoed back to the screen from the reader.
Toolbar Style
By user selection, displays toolbar buttons as icons, text only, or both (default).
Note: See also Chapter 14, “Terminal Mode.”
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Pulldown Menus
Bar Code Options tab
Sets up the sizing, font, and
caption parameters for the bar
codes that you can create and
print from the Bar Code
Options Dialog under View.
Sizing Information
Sets the bar height (in inches)
and bar widths (in thousands of
an inch) of the symbols. A bar
width of 13 is 0.013 inches.
Caption
Sets the characteristics of caption font and its placement in
relation to the bar code symbol.
Advanced tab
As indicated.
Document Memo
Whatever you type into the Document Memo will appear in a text box whenever your
cursor hovers over the Document Memo option.
Model Memo
Memos created in Model Memo are specific to the model enabled when the message
was created.
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Chapter 2 Using ESP
Connect Menu
Autoconnect
Generally Autoconnect will be the quickest way that ESP
can get connected to a reader. Autoconnect will try connecting at the most common communications settings and
step through the various settings until they match up with
the host’s settings.
Connect
When you select Connect, you will need to manually select the communications settings from a popup dialog.
Configure Multidrop
To connect to the reader by Multidrop, you will need a multidrop concentrator such as
the MS-Connect 5100 and the required power supplies and cabling to communicate
with your scanner(s).
1. From the Communications drop down menu in
ESP, select Configure Multidrop to bring up the
Multidrop Settings dialog.
2. If necessary, change the default address to
match the address of your multidropped scanner
and click OK.
If the host serial port is not connected in ESP,
you will see the following popup message:
ESP is not currently connected to the multidrop
concentrator. Do you wish to establish a connection now?
3. Click Yes.
You will see a Serial Communication Parameters dialog as shown on the next
page.
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Connect Menu
4. Select the concentrator’s host port communications
settings.
When you click Connect, you will be connecting to
your concentrator, which can then relay commands to
the scanner whose address was set in the Multidrop
Settings dialog.
5. Click Connect.
6. You should see the CONNECTED message in green
at the bottom of the window along with the scanner’s
Multidrop address.
7. Do Retrieve Scanner Settings to upload scanner’s
configuration (Step 4). If upload fails, return to the
Serial Communication Parameters dialog and make the corrections.
8. Follow the same procedure for connecting other scanners to your
multidrop network.
Note: For more information, see the MS-Connect 5100 User Manual.
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Chapter 2 Using ESP
View
View indicates the current view (with a dot before the item)
and allows you to quickly move to other views which are also
accessed by clicking the icons on the toolbars.
It also allows you to access the Barcode Dialog.
Barcode Dialog
In the Barcode Dialog you can create bar code symbols by directly typing in the text bar
code text you want to appear in Code 128 bar code symbols. This is a very useful tool
for creating configuration symbols which allows you to configure your reader by reading
the bar code symbols you print out. To configure the size, text and caption parameters,
see “Bar Code Options tab” on page 2-8.
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Navigating in ESP
Navigating in ESP
To change reader settings, or to access the utilities or terminal window, click on the
App Mode button.
To return to the Easy Mode, click on the EZ Mode button.
To make changes to a configuration setting in the menu trees:
1. Left click on the + to
expand tree
2. Double click on parameter and click once in selection box to view options.
3. Place your curser in the
selection box, scroll down
to the setting you want to
change and click once on
the setting.
4. Left click again on the
open screen to complete
the selection.
2-12
5. Right click on the open screen and select
Save to Reader to implement the command
in the reader.
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Chapter 2 Using ESP
Send/Receive Options
To access Receive, Save and Default options, click the Send/Recv
button: You can also access this selector by right-clicking in any of the
configuration views.
Receiving
From the Send/Recv selector, select Receive Reader Settings.
Caution: Do no select this option if you do not want to upload the reader’s settings. For
example, if your ESP file has a number of custom settings that you want to maintain
and download into the reader, these settings would be lost by choosing Yes.
This is useful if you want to receive (upload) the reader’s settings and save them as a
computer file for later retrieval. For example, if your reader has settings that you do not
want to change, choosing Yes would allow you to load those settings to ESP and save
as an ESP file for later retrieval.
Receiving the reader’s settings will also assure that you will not be subsequently saving
any unwanted changes that you or someone else previously made in ESP.
See “Send/Receive Options” on page 2-13 for more detail.
Saving
1. Send, No Save.
(same as <A>)
This saves ESP settings to current
memory.
2. Send and Save.
(same as <Z>)
This activates all changes in current memory and saves to the reader for
power-on.
3. Send and Save as Customer Defaults.
(same as <Zc>)
(This option will be visible only if you had checked Enable ‘Send and Save as
Customer Defaults’ in ESP Preferences in the Options menu.)
Use this to save your own set of default settings that you can quickly retrieve with
a <Zrc> command.
For more on defaulting and saving settings, see “Defaulting/Saving/Resetting” on
page A-20.
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Send/Receive Options
Defaulting
When you select Default Current... or Default all ESP... you are only defaulting the
ESP settings.
Advanced Options
Send Current View
This is the same as Save
to Reader, Send No Save
except that only the commands in the current menu
tree are sent.
Send Current Command
This is the same as Send
Current View above, but
only saves the command
that is currently selected.
Add Exceptions
After you perform a Receive from Reader command1 and you click on the Add Exception option
you may see a list of serial commands that looks
like the example to the right. These are serial commands that may be in your reader’s firmware, but
not included or different from your current ESP
software.
You can edit these commands by double-clicking on
them and changing as needed.
When exceptions are present, you can also access
them from an Exceptions button that will appear
on the Applications button bar.
It is important to note that these
commands will be saved to your reader whenever you do a Save to
Reader command or send an <A> or a <Z> command.
Also, if there is a corresponding ESP menu item, the ESP Value column
for that item will be blank following a Receive from Reader command.
1. From the Send/Recv button or right-clicking from within the tree menus.
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Communications
Chapter
3
Chapter Contents
Communications by ESP.............................................................................3-2
Communications By Serial Command.........................................................3-2
Password Protection ...................................................................................3-3
RS-232/422 Host Port .................................................................................3-4
RS-232 Auxiliary Port ................................................................................3-11
Preamble ...................................................................................................3-20
Postamble .................................................................................................3-21
LRC Status ................................................................................................3-22
Intercharacter Delay ..................................................................................3-22
The ESP™ (Easy Setup Program), configuration changes can be made in the ESP
menus, then sent and saved to your reader. The user can also send serial commands to
the reader via the ESP’s Terminal window.
This section includes connecting parameters and options for communicating by the auxiliary port and various interfaces.
Note: When assigning characters in user-defined fields, the characters NULL <> and ,
can only be entered through embedded menus, not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
Note: Default settings for establishing communications are:
Baud =
9600
Parity =
Even
Stop Bits =
One
Data Bits =
Seven
Flow Control = None
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?> To see all “K” commands, send <K?>.
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Communications by ESP
Communications by ESP
Click this button to bring up
the Communications menu.
To change a setting,
double-click the setting and use your cursor to scroll through
the options.
To open nested options,
single-click the +.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?> To see all “K” commands, send <K?>.
Communications By Serial Command
Command Title
Password Status
Password Entry, Change
Host Port Parameters
Host Protocol
Host RS422 Status
Aux Port Parameters
Preamble
Postamble
LRC Status
Intercharacter Delay
3-2
Format
<K732,status>
<K733password,new password>
<K100,baud,parity,stop bits,data bits>
<K140,protocol>
<K102,status>
<K101,aux port mode,baud rate,parity,stop bits,data
bits,daisy chain status,daisy chain ID>
<K141,preambole status,preamble>
<K142,postamble status,postamble>
<K145,status>
<K144,intercharacter delay>
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Chapter 3 Communications
Password Protection
Note: Password protection options are entered serially and are not available in ESP
menus.
Usage:
Password Protection when enabled prevents the scanner’s parameters
from being modified but does not affect the flow of data from the scanner
or its response to read only commands.
Definition:
Can require a password for any serial or menu command change.
Password
Entry:
From a terminal screen enter <K733 password>.
(Do not put a comma between K733 and the password.)
If you enter the password correctly, you will see the password echoed to the screen and
you will then be able to make changes to the scanner’s parameters.
Enter the password once and the scanner’s command protection is temporarily
unlocked until the scanner is turned off or reset. If a reset occurs then the password will
need to be entered again.
Password Status
Definition:
If Password Status is set to Disabled, then no parameters are off limits.
If Password Status is set to Enabled, then this option cannot be subsequently disabled until the password defined in <K733> is entered. This
parameter is non-volatile and will be included in any <Z> or <Zc>
parameter save.
Serial Cmd:
<K732,status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
New Password
Definition:
To change the password from the current password, enter the current
password, a comma, and the new password. If successfully entered, the
new password will be displayed and the command change protection
temporarily removed.
Serial Cmd:
<K733 password,new password>
Note: Follow this with a <Z> or <Zc> to save for power-on.
Default:
MICRO
Options:
Any ASCII string up to 8 characters.
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RS-232/422 Host Port
RS-232/422 Host Port
Host Port Connections
Baud Rate (host port)
Usage:
Can be used to transfer data faster or to match host port settings.
Definition:
The rate at which the reader and host transfer data back and forth.
Serial Cmd:
<K100,baud rate,parity,stop bits,data bits>
Default:
9600
Options:
0 = 600
1 = 1200
2 = 2400
3 = 4800
4 = 9600
5 = 19.2 K
6 = 38.4 K
7 = 57.6 K
8 = 115.2 K
Parity (host port)
Usage:
Only changed if necessary to match host setting.
Definition:
An error detection routine in which one data bit in each character is set to
1 or 0 so that the total number of 1 bits in the data field is even or odd.
Serial Cmd:
<K100,baud rate,parity,stop bits,data bits>
Default:
Even
Options:
0 = None
1 = Even
2 = Odd
Stop Bits (host port)
Usage:
Only changed if necessary to match host setting.
Definition:
One or two bits added to the end of each character to indicate the end of
the character.
Serial Cmd:
<K100,baud rate,parity,stop bits,data bits>
Default:
One
Options:
0 = One
3-4
1 = Two
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Chapter 3 Communications
Data Bits (host port)
Usage:
Only changed if necessary to match host setting.
Definition:
Number of bits in each character.
Serial Cmd:
<K100,baud rate,parity,stop bits,data bits>
Default:
Seven
Options:
0 = Seven
1 = Eight
Host Port Protocol
Usage:
In general, the point-to-point protocols will work well in most applications. They require no address and must use RS-232 or RS-422 communications standards.
Definition:
Protocols define the sequence and format in which information is transferred between the scanner and the host, or in the case of Multidrop,
between scanners and a concentrator.
Serial Cmd:
<K140,protocol>
Default:
Point-to-Point
Options:
0 = Point-to-Point
1 = Point-to-Point with RTS/CTS
2 = Point-to-Point with XON/XOFF
3 = Point-to-Point with RTS/CTS &
XON/XOFF
4
5
6
7
=
=
=
=
Polling Mode D
Multidrop
User Defined
User Defined Multidrop
If selecting one of the options from 0 to 4 (Point-to-Point, Point-toPoint with RTS/CTS, Point-to-Point with XON/XOFF, Point-toPoint with RTS/CTS and XON/XOFF, or Polling Mode D), use the
<K140,protocol> format.
Option 5 through 7 are special cases and discussed later in this section.
Point-to-Point (standard)
Usage:
Used only with RS232 or RS422.
Definition:
Standard Point-to-Point requires no address and sends data to the host
whenever it is available, without any request or handshake from the host.
Serial Cmd:
<K140,0>
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RS-232/422 Host Port
Point-to-Point with RTS/CTS
Usage:
A reader initiates a data transfer with an RTS (request-to-send) transmission. The host, when ready, responds with a CTS (clear-to-send) and the
data is transmitted. CTS and RTS signals are transmitted over two dedicated wires as defined in the RS-232 standard.
Used only with RS232.
Definition:
Point-to-Point with RTS/CTS (request-to-send/clear-to-send) is a
simple hardware handshaking protocol that allows a reader to initiate
data transfers to the host.
Serial Cmd:
<K140,1>
Point-to-Point with XON/XOFF (Transmitter On/Off)
Usage:
If an XOFF has been received from the host, data will not be sent to the
host until the host sends an XON. During the XOFF phase, the host is free
to carry on other chores and accept data from other devices.
Used only with RS232.
Definition:
This option enables the host to send the XON and XOFF command as a
single byte transmission command of start (^Q) or stop (^S).
Serial Cmd:
<K140,2>
Point-to-Point with RTS/CTS & XON/XOFF
Usage:
Used only with RS232.
Definition:
This option is a combination of Point-to-Point with RTS/CTS and
Point-to-Point with XON/XOFF.
Serial Cmd:
<K140,3>
Polling Mode D
Usage:
When in Polling Mode D, an address of 1 is automatically displayed on
the configuration screen. However, during transmission, a 1C hex poll
address (FS) and a 1D hex select address (GS) are substituted for the 1.
Definition:
Like Point-to-Point, Polling Mode D requires a dedicated connection to
the host; but unlike Point-to-Point, it requires an address and must
wait for a poll from the host before sending data.
Serial Cmd:
<K140,4>
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Chapter 3 Communications
Multidrop
See also Quick Start Help for Multidrop setup.
Usage:
The MS-Connect 5100 can be used as a concentrator to a single host
port connection.
When Multidrop is selected, the protocol characters for RES, REQ, etc.
are assigned automatically.
Definition:
Multidrop allows up to 50 devices to be connected to a single RS485
host, with the scanner assigned an unique address (from 01 to 50).
Multidrop
Addresses:
Each address has its own separate poll and select address (from 1C to 7F
hex).
Options:
01 through 50
Serial Cmd:
If selecting Multidrop fan address must be defined and appended to the
command string.
Format: <K100,5,address[01 to 50]>
Note: Scanners linking up to a Microscan MS-Connect 5100 multidrop
concentrator must be configured in standard multidrop protocol.
User Defined Point-to-Point
Usage:
Useful for developing custom protocols in polled or unpolled mode.
Definition:
User Defined Point-to-Point allows the user to customize the point-topoint protocol.
Serial Cmd:
<K140,6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
User Defined Address
Definition:
User Defined is considered to be in a polled mode only if an address has
been assigned.
Serial Cmd:
<K140,6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
Default:
No address
Options:
Any ASCII character except a null.
User Defined Example
Definition:
Example: ACK/NAK protocol can be configured using User Defined. The
scanner will transmit data to the host when an ACK is received. If a NAK
or response timeout occurs, the scanner will re-send the data to the host
up to 3 more times before aborting.
Tip: To use User Defined Point-to-Point, first select Point-to-Point
<K100,0> and then User Defined <K100,6>.
Example: To select an unpolled ACK/NAK User Defined protocol with
LRC disabled, send <K100,0><K100,6,,,,,,,^F,^U><Kc0>. ACK and
NAK will be displayed in the menu.
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RS-232/422 Host Port
Serial Cmd:
<K140,6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
Default:
No assignment
Options:
Any ASCII character except a null. Control characters can be used to
define RES through NAK in serial commands.
From Host
Definition:
This option allows the handshaking protocol to be initiated from the host,
if not configured in an unpolled mode. Messages sent to the host will
include the scanner’s defined protocol. The status of From Host determines if messages sent from the host to the scanner must include the
defined protocol. If From Host is disabled, the defined protocol is not
included. If From Host is enabled, the defined protocol must be
included.
Serial Cmd:
<K140,6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
Default:
Disabled
Options:
0 = Disabled
3-8
1 = Enabled
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Chapter 3 Communications
User Defined Multidrop
Note: Any ASCII character except a null (00) and a ^A (01) can be assigned as an
address. Control characters can be used to define RES through NAK in serial commands. “Communication Protocol Commands” on page A-11.
Usage:
This option is used when connecting to a concentrator or other device
that does not match standard multidrop protocol.
If selecting User Defined Multidrop (7), complete the format by either
choosing new parameters or place commas where unchanged data fields
occur.
Definition:
User Defined Multidrop allows the user to customize the polling protocol.
Serial Cmd:
<K140,7,RES,address,REQ,EOT,STX,ETX,ACK,NAK>
For User Defined Multidrop, first select Multidrop <K140,5>, then
User Defined Multidrop <K140,7...>.
Address:
Any single character (02 hex to 7E hex) in the ASCII table can be
assigned as the address character. The character chosen is used as the
poll character and the subsequent ASCII character becomes the select
character. For example, if a ^B (02 hex) is selected as the address, ^C
(03 hex) becomes the select address that the host will use in sending
host select commands.
Note: Definitions of commands in User Defined and User Defined Multidrop must
be duplicated in host applications to enable poll and select sequences to execute correctly during transmission.
Note: Typically, parameters in User Defined Multidrop are defined by first enabling
Multidrop, then enabling User Defined Multidrop. This pre-loads multidrop characters into the parameters. Then changes are made to individual characters to match the
host or other requirements.
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RS-232/422 Host Port
Host RS-232/422 Status
Used only in Point-to-Point protocol, and not with RTS/CTS.
Usage:
Only changed if necessary to match host setting.
Definition:
Enables RS422. When RS422 is enabled, RS232 is disabled.
Serial Cmd:
<K102,status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Whenever RS422 is disabled, RS232 is enabled in the background. However, when Multidrop is enabled, the functioning protocol is RS485 regardless of the displayed status
of RS422. Before enabling RS422, first double-check that Multidrop is not enabled.
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Chapter 3 Communications
RS-232 Auxiliary Port
Note: The aux port cannot be used when the host port is set to RS422 or Multidrop.
As with the host port parameters, the auxiliary terminal’s settings (baud rate, parity,
stop bits, and data bits) must be identical with those of the auxiliary device.
Usage:
These commands set the communication parameters with the auxiliary
port which can be used to configure menus, send data to the host, display data transmissions originating from the host of the scanner, and
relay data from other scanners set in tandem (daisy chained). If the
scanner’s host port needs to be dedicated to the host, but configuration
must be done on the fly, the auxiliary port can be set to accept configuration changes by Command Processing (page 3-17).
Definition:
An auxiliary port connects the scanner to a remote display or to other
scanners that can display or transfer data.
Aux Port Connections
As with the host port parameters, the auxiliary terminal’s settings (baud rate, parity,
stop bits, and data bits) must be identical with those of the auxiliary device.
Baud Rate, Aux Port
Usage:
Can be used to transfer data faster or match an auxiliary device.
Definition:
The rate at which the scanner and host transfer data back and forth.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Default:
9600
Options:
0 = 600
1 = 1200
2 = 2400
3 = 4800
4 = 9600
5 = 19.2 K
6 = 38.4 K
7 = 57.6 K
8 = 115.2 K
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RS-232 Auxiliary Port
Parity, Aux Port
Usage:
Only changed if necessary to match host setting.
Definition:
An error detection routine in which one data bit in each character is set to
1 or 0 so that the total number of 1 bits in the data field is even or odd.
Default:
Even
Options:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Serial Cmd:
0 = None
1 = Even
2 = Odd
Stop Bits, Aux Port
Usage:
Only changed if necessary to match host setting.
Definition:
Allows the user to select the last one or two bits in each character to indicate the end of the character.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Default:
One
Options:
0 = One
1 = Two
Data Bits, Aux Port
Usage:
Only changed if necessary to match host setting.
Definition:
Number of bits in each character.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Default:
Seven
Options:
0 = Seven
3-12
1 = Eight
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Chapter 3 Communications
Auxiliary Port Mode
Definition:
Determines the flow of data between the auxiliary port device(s), the
scanner, and the host.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Default:
Disabled
Options:
0 = Disabled
2 = Half duplex
4 = Daisy chain
1 = Transparent
3 = Full duplex
5 = Command Processing
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RS-232 Auxiliary Port
Transparent Mode
Usage:
A common application, in conjunction with handheld scanners, is one that
employs an auxiliary readout to detect mis-applied bar code symbols.
Definition:
In Transparent mode data is passed between the auxiliary port and the
host. The scanner buffers data from the auxiliary port and echoes the
keyed data on the auxiliary port.
Data initiated from the Auxiliary Port
• Auxiliary port data is passed through to the host whenever a return
key is pressed at the auxiliary port or symbol data is sent.
• Whenever aux port data is sent with symbol
Aux
data, the aux port data will appear between the
Host
Port
preamble and the symbol data.
• Auxiliary port data to the host is always sent
with a preamble and a postamble.
Scanner
• If the scanner is in a polled mode to the host,
auxiliary port data will NOT pass through.
• <D> is the only command accepted by the
scanner from the auxiliary port. All other commands will pass through
to the host.
Data initiated from the Scanner
• Transmission to the auxiliary port occurs immediately upon a good read.
• Scan data to the auxiliary port does not include
a preamble or a postamble.
• Communications with the auxiliary port is
always in Point-to-Point protocol, even if the
host is in a polled protocol mode.
Host
Scanner
Data initiated from the Host
• All host data is echoed to the auxiliary port in
unpolled and polled mode.
Aux
Port
Host
Aux
Port
Scanner
Serial Cmd:
3-14
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
1 = Transparent
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Chapter 3 Communications
Half Duplex Mode
Usage:
Useful when the user wants symbol data displayed on an auxiliary screen
close to the scanner.
Definition:
In Half Duplex mode all auxiliary port data and symbol data is sent
directly to the host. Symbol data is displayed on the auxiliary port screen
at the same time the data is sent to the host.
Data initiated from the Auxiliary Port
• Auxiliary port data to the host is ignored if the
Aux
scanner is in a polled mode.
Host
Port
• Auxiliary port data or scanned data is sent to
the host whenever it is received.
• Auxiliary port data is not echoed.
Scanner
• Auxiliary port data to the host is always sent
without a preamble or a postamble.
• <D> is the only command that is accepted by the scanner from the
auxiliary port. All other commands are passed through to the host.
Data initiated from the Scanner
• Scan data is transmitted to the auxiliary port at
the same time it is transmitted to the host.
• Data transmission conforms with all parameters
specified in the configuration menu (e.g., Preamble, Postamble, End of Read Cycle).
Host
Aux
Port
Scanner
Data is initiated from the Host
• All host data is echoed to the auxiliary port in
unpolled mode.
Host
Aux
Port
Scanner
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
2 = Half Duplex
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RS-232 Auxiliary Port
Full Duplex Mode
Usage:
When communication to and from the auxiliary port is required.
Definition:
In Full Duplex mode all auxiliary port data and symbol data is sent
directly to the host. Symbol data is not displayed on the auxiliary port
screen.
Data initiated from the Auxiliary Port
Aux
Host
• Auxiliary port data to the host is ignored if the
Port
scanner is in a polled mode.
• Auxiliary port data or scanned data is sent to
the host whenever it is received.
Scanner
• Auxiliary port data is not echoed.
• Auxiliary port data to the host is always sent
without a preamble or a postamble.
• <D> is the only command that is accepted by the scanner from the
auxiliary port. All other commands are passed through to the host.
Data initiated from the Scanner
• Scan data is not sent to the auxiliary port.
Host
Aux
Port
Scanner
Data initiated from the Host
• All host data is echoed to the auxiliary port in
unpolled mode.
Host
Aux
Port
Scanner
Serial Cmd:
3-16
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
3 = Full duplex
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Chapter 3 Communications
Daisy Chain Mode
Usage:
Useful in applications where:
• A symbol might be scanned in both ladder and picket fence directions.
• A symbol may be present on multiple sides of a package.
• Symbols are presented at different depths.
Definition:
In a daisy chain application, scanners are connected in tandem or “daisy
chain” and decoded data is relayed from one scanner to another on up to
the host.
A master scanner has its host port linked to the host computer and its
auxiliary port linked to the host port of the first “slave” scanner in the
chain. Thereafter, each slave’s auxiliary port is linked to the host port of
the slave that is further from the host in the daisy chain.
Each scanner in the daisy chain can be assigned an ID that accompanies
any data that it sends.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Options:
4 = Daisy chain
Function:
Before the master scanner times out, it checks its auxiliary port for data.
It should be set to wait at least 20 mS for each slave in the daisy chain.
(See “Read Cycle Timeout” on page 4-15.) If no data is received
within the read cycle timeout, the master sends a noread message to the
host. Otherwise the complete data is sent.
If for example a master scanner is set to timeout in 120 mS, the first
slave scanner might be set to 100 mS, the next to 80 mS, and so forth,
thus assuring that at least 20 mS elapses between transmissions.a
Daisy-chained scanners can send a series of symbols by enabling Multisymbol and a common multisymbol separator. If the master scanner
does not receive the expected number of symbols, noread messages are
appended to the data string to make up the difference between the number of symbols enabled in Multisymbol and the number of symbols read.
For example, a master and two slaves have Number of Symbols set to
3 and Multisymbol Separator defined as %. If the master and the first
slave do not find symbols, but the next slave scanner registers a good
read, the transmitted results will be: symbol data % noread % noread.
a. The above example is based on the best case. Other factors such as baud rate, dynamic focus timing,
number of characters in a given symbol, and the number of slaves in the daisy chain can affect timing and may need to be included in your calculations for complete accuracy.
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RS-232 Auxiliary Port
Conditions:
The conditions for a daisy chain application are as follows:
1. The master scanner’s trigger must be Serial or
External; the slave scanners’ triggers are conHost
Slave
figured for Serial.
2. All scanners are enabled to Daisy Chain mode.
3. Each scanner’s auxiliary port must be connected
Master
to the Host port of its slave scanner.
4. Each slave scanner in the daisy chain must be
set to send its data no less than 20 mS before its preceding scanner.
5. All but the master scanner must have Postamble enabled and set
to CR (^M) only.
6. All but the master scanner must have their noread messages disabled.
7. If Multisymbol is enabled, Multisymbol Separator characters
must match in all scanners and Number of Symbols must be set
to number large enough to include all the symbols it may itself read
plus the number of symbols that it will be expected to relay to the
host or the next scanner up the line.
8. Symbology ID enable/disable must be the same in all scanners.
9. All but the master scanner must have their diagnostic warning messages disabled.
10. Daisy Chain ID Status enable/disable and the number of characters in Daisy Chain ID must be the same in all scanners.
Command Processing Mode
Usage:
Allows user to send configuration from the Host port or the AUX port.
Definition:
When enabled, Command Processing allows commands to be entered
via the aux port. The following rules apply:
1. Bar code data, including the serial trigger if used, will be transmitted to the last port from which a command was sent.
2. If a reset occurs, all data will be transmitted to the host port.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Options:
5 = Command Processing
3-18
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Chapter 3 Communications
Daisy Chain ID Status
Usage:
Used in a daisy chain setup in cases where the host needs to know which
scanner in a daisy chain setup sent the data.
Definition:
Each scanner in a daisy chain can be assigned a one or two character ID
that will appear in front of decoded data and identify its source.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
ID status,daisy chain ID>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Note: Enable/disable and length must be the same in all scanners.
Daisy Chain ID
Usage:
Used in a daisy chain setup in cases where the host needs to know which
scanner sent the data.
Definition:
A one or two character prefix which identifies the particular daisy chain
scanner from which the data is being sent.
Serial Cmd:
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain ID
status,daisy chain ID>
Default:
1/
Options:
Any one or two ASCII characters.
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Preamble
Preamble
Preamble Status
Usage:
Useful for identifying and controlling incoming data. For example, defining the preamble as a carriage return and a line feed causes each
decoded message to be displayed of on its own line.
Definition:
Defines a one to four character data string that can be added to the front
of the decoded data.
Serial Cmd:
<K141,preamble status,preamble character(s)>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled (within any protocol)
Preamble Characters
Serial Cmd:
<K141,preamble status,preamble characters>
Default:
^M corresponds to: carriage return/null/null/null.
Options:
Up to four user-defined ASCII characters, including control characters.
Within a Serial Command.
To enter control characters within a serial command, hold down the control key while
typing the desired character.
Example: <K141,1,CNTL-m> to enter ^M.
Within an Embedded Menu
Control characters entered on the command line are displayed in the menu as mnemonic characters, such as: <CR><NUL><NUL><NUL>.
To enter a control character from within an embedded menu, first type in a space (with
the space key). This has the effect of allowing the control key to be recognized as a part
of the control character. Next hold down the control key while typing the desired character.
Example: Space CNTL-m to enter ^M.
3-20
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Chapter 3 Communications
Postamble
Postamble Status
Usage:
Useful for identifying and controlling incoming data. For example, defining the postamble as a carriage return and a line feed causes each
decoded message to be displayed of on its own line.
Definition:
Defines a one to four character data string that can be added to the end
of the decoded data.
Serial Cmd:
<K142,status,postamble character(s)>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled (within any protocol)
Postamble Characters
Serial Cmd:
<K142, status,postamble characters>
Default:
^M^J. Corresponds to carriage return/line feed/null/null, as displayed in
the menu.
Options:
Up to four user-defined ASCII characters, including control characters.
Within a Serial Command
To enter control characters within a serial command, hold down the control key while
typing the desired character.
Example: <K142,CNTL-m CNTL-j> to enter ^M^J.
Within an Embedded Menu
Control characters entered on the command line are displayed in the menu as mnemonic characters, such as: <CR><LF><NUL><NUL>
To enter a control character from within an embedded menu, first type in a space (with
the space key). This has the effect of allowing the control key to be recognized as a part
of the control character. Next hold down the control key while typing the desired character.
Example: Space CNTL-m Space CNTL-j to enter ^M^J.
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LRC Status
LRC Status
(Longitudinal Redundancy Check)
Usage:
Used when extra data integrity is required.
Definition:
An error-checking routine that verifies the accuracy of transmissions. It is
the exclusive OR of all characters following the STX (start of text) up to
and including the ETX (end of text). What this means is that the binary
representation of all the characters in a transmissions are cumulatively
added in a column and each resulting odd integer is assigned a 1 and
each even integer a 0 (two 1s = 0, two 0s = 0, a 1 and a 0 = 1). The
extra LRC character is then appended to the transmission and the
receiver (usually the host) performs the same addition and compares the
results.
Serial Cmd:
<K145,LRC status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Intercharacter Delay
Usage:
Used only when a host cannot receive data quickly enough and there is
enough time between symbols to allow data to be completely transferred.
It is rarely used since any setting other than zero will slow down communications. For example, a 200 setting will result in a 1/5 second delay
between each character that is transmitted.
Definition:
The time interval in milliseconds between individual characters transmitted from the scanner to the host.
Serial Cmd:
<K144,intercharacter delay>
Default:
0
Options:
0 to 255 (in milliseconds). Zero (0) causes no delay between
characters.
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MS-3 Laser Scanner User Manual
4 Read Cycle
Contents
Read Cycle by ESP ...................................................................................................................... 4-2
Read Cycle by Serial Command ................................................................................................. 4-2
Multisymbol................................................................................................................................... 4-3
Number of Symbols ...................................................................................................................... 4-4
Trigger .......................................................................................................................................... 4-6
Serial Trigger .............................................................................................................................. 4-12
End of Read Cycle...................................................................................................................... 4-14
Decodes Before Output .............................................................................................................. 4-16
Scanner Setup............................................................................................................................ 4-17
Laser Setup ................................................................................................................................ 4-21
After you’ve established communications and completed basic read rate testing, you will
need to address the spatial and timing parameters associated with your application. In a
typical operation a bar coded item moves along a line past a scanner. A trigger or timer
activates a read cycle during which the scanner actively searches for symbols. You will
need to decide how to initiate the read cycle and how and when to end it.
Note: When assigning characters in user-defined fields, the characters NULL <> and , can
only be entered through embedded menus, not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark after
the number, as in <K100?>. To see all “K” commands, send <K?>.
MS-3 Laser Scanner User Manual
4-1
Read Cycle by ESP
Read Cycle by ESP
Click this Button to bring up
the Read Cycle/Triggering
menu.
To open nested options,
single-click the +.
To change a setting,
double-click the
setting and use your
cursor to scroll
through the options.
Read Cycle by Serial Command
Command Title
Multisymbol
Trigger Mode
External Trigger State
Serial Trigger Character
Start Serial Trigger Character
End Serial Trigger Character
End of Read Cycle
Decodes Before Output
Automatic Gain Control
Scan Speed
Symbol Detect/Transition
Maximum Element
Scan Width Enhance
Laser Controls
4-2
Format
<K222,number of symbols,multisymbol separator>
<K200,trigger mode,trigger filter duration>
<K202,external trigger state>
<K201,serial trigger character>
<K229,start trigger character>
<K230,end trigger character>
<K220,end of read cycle,read cycle timeout>
<K221,number before output,decodes before output mode>
<K504, gain level,AGC sampling mode,AGC min,AGC max>
<K500,scan speed>
<K505,symbol detect status,transition counter>
<K502,maximum element>
<K511,scan width enhance>
<K700, laser on/off status,laser framing status,laser on position,
laser off position,laser power>
MS-3 Laser Scanner User Manual
Read Cycle
Multisymbol
Usage:
Commonly used in shipping applications where a shipping symbol contains
individual symbols for part number, quantity, etc. This feature allows one
trigger to pick up all the symbols. AIAG and UCC/EAN-128 are two application
standards that address this need.
Definition:
Allows the user to set up conditions that will allow more than one symbol to
be decoded and output.
Conditions
The following conditions apply:
1. All noread messages are posted at the end of the data string.
2. If more than one symbol is within the scan beam at the same time,
symbol data may not be displayed in the order of appearance.
3. If Matchcode Type is set to Sequential or if Trigger is set to Continuous
Read 1 Output, Number of Symbols will default to 1 (if set to any number
greater than 1).
4. The maximum number of characters in any one bar code (other than
PDF417) is 64.
5. The maximum number of characters in a single scan line is 102 (Code
39).
6. The maximum number of characters for all symbols is 392, including
preamble, separators, and LRC.
MS-3 Laser Scanner User Manual
4-3
Number of Symbols
Number of Symbols
Definition:
Number of Symbols allows the user to define up to 6 symbols that can be
read in a single read cycle.
Serial Cmd:
<K222,number of symbols,multisymbol separator>
Default:
1
Options
1 to 6
4-4
MS-3 Laser Scanner User Manual
Read Cycle
Multisymbol Separator
Usage:
Used to delimit or separate data fields with a user defined character.
Definition:
The character that’s inserted between each symbol scanned when Multisymbol is set to any number greater than 1.
ESP:
To select a new multisymbol separator, double-click on Separator and
select a character in the popup window.
Serial Cmd:
<K222,number of symbols,multisymbol separator>
Note: If Multisymbol Separator has been changed to any character other
than the default comma and you wish to re-define the separator as a
comma, use ESP or the embedded menu.
Default:
, (comma)
Options:
Any available ASCII character, except < > NUL.
MS-3 Laser Scanner User Manual
4-5
Trigger
Trigger
Trigger Mode
Definition:
The type of trigger event that will initiate the read cycle.
Serial Cmd:
<K200,trigger mode,trigger filter duration>
Default:
Continuous Read
Options:
0 = Continuous Read
1 = Continuous Read 1 Output
2 = External Level
3 = External Edge
4 = Serial Data
5 = Serial Data & External Edge
Continuous Read
Usage:
Continuous Read is useful in testing symbol readability or scanner functions. It is not recommended for normal operations.
Definition:
In Continuous Read, trigger input options are disabled, the scanner is
always in the read cycle, and it will attempt to decode and output every
scan crossing a symbol.When To Output and Noread options have no
affect on Continuous Read.
Serial Cmd:
<K200,0>
4-6
MS-3 Laser Scanner User Manual
Read Cycle
Continuous Read 1 Output
Usage:
Continuous Read 1 Output can be useful in applications where it is not
feasible to use a trigger and all succeeding symbols contain different information. It is also effective in applications where the objects are hand-presented.
Definition:
In Continuous Read 1 Output the scanner self-triggers whenever it
decodes a new symbol or a timeout occurs.
If End Of Read Cycle is set to Timeout and the symbol doesn't change,
the scanner will repeat the output at the end of each timeout period. For
example, if Timeout is set to one second, the scanner sends the symbol
data immediately and repeats the output at intervals of one second for as
long as the symbol continues to be scanned.
If End Of Read Cycle is set to New Trigger, the scanner will send the current symbol data immediately, but send it only once. A new symbol appearing in the scanner’s range will be read and sent immediately provided it is
not identical to the previous symbol read.
Serial Cmd:
<K200,1>
Caution: In automated environments, Continuous Read 1 Output is not recommended
because there is no one to verify that a symbol was missed.
Note: If Trigger is set to Continuous Read 1 Output, Number of Symbols will default
back to 1 (if set to any number greater than 1).
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4-7
Trigger
External Trigger Level
Usage:
This mode is effective in an application where the speeds of the conveying
apparatus are variable and the time the scanner spends scanning each
object is not predictable. It also allows the user to determine if a noread has
occurred.
Initiate Read Cycle:
Object # 1, moving in front of the
detector beam, causes a change in
the trigger state, initiating the read
cycle.
1
Object
detector
1
Object
detector
End Read Cycle:
The same object, moving out
of the detector beam, causes
another change in the trigger
state, ending the read cycle.
Positive
0
Associated waveforms assume
External Trigger State is set
to Positive.
Positive
0
Trigger Level
Definition:
External Level allows the read cycle to begin when a trigger (change of
state) from an external sensing device is received. The read cycle endures
until the object moves out of the sensor range and the active trigger state
changes again.
Serial Cmd:
<K200,2>
Important: Level and Edge apply to the active logic state (Positive or Negative) that
exists while the object is in a read cycle, between the rising edge and falling edge. Rising
edge is the trigger signal associated with the appearance of an object. Falling edge is the
trigger signal associated with the subsequent disappearance of the object.
4-8
MS-3 Laser Scanner User Manual
Read Cycle
External Trigger Edge
Usage:
This mode is highly recommended in any application where conveying
speed is constant or if spacing, object size, or timeouts are consistent.
Definition:
External Trigger Edge, as with Level, allows the read cycle to begin when
a trigger (change of state) from an external sensing device is received.
However, the passing of an object out of sensor range does not end the
read cycle. The read cycle ends with a good read output or, depending on
End of Read Cycle setting, a timeout or new trigger occurs.
Initiate Read Cycle:
Object # 1, moving in front of the detector
beam, causes a change in the trigger
state, initiating the read cycle.
1
Active
0
Object
detector
2
Object
detector
Initiate Second Read Cycle:
Object # 2, moving in front of the
detector beam, causes another
change in the trigger state. This signal initiates a new read cycle and
ends the previous read cycle unless
Timeout is enabled and a good read
or timeout has not occurred.
Associated waveforms
assume External State is
set to Positive.
Active
0
Trigger Edge
Serial Cmd:
<K200,3>
Important: Level and Edge apply to the active logic state (Positive or Negative) that
exists while the object is in a read cycle, between the rising edge and falling edge. Rising
edge is the trigger signal associated with the appearance of an object. Falling edge is the
trigger signal associated with the subsequent disappearance of the object.
Important: Level and Edge apply to the active logic state (Positive or Negative) that
exists while the object is in a read cycle, between the rising edge and falling edge. Rising
edge is the trigger signal associated with the appearance of an object. Falling edge is the
trigger signal associated with the subsequent disappearance of the object.
MS-3 Laser Scanner User Manual
4-9
Trigger
Serial Data
Usage:
Highly recommended in any application where conveying speed is constant
or if spacing, object size, or timeouts are consistent.
Definition:
In Serial Data, the scanner accepts an ASCII character from the host or
controlling device as a trigger to start a read cycle. A Serial Data trigger
behaves the same as an External Edge trigger.
Serial Cmd:
<K200,4>
Serial Data or External Edge
Usage:
Serial Data or External Edge is seldom used but can be useful in an application that primarily uses an external sensing device but occasionally
needs to be manually triggered. An auxiliary terminal can be connected to
the aux port so the user can send the serial trigger character through the
scanner to the host.
Definition:
In this mode the scanner accepts either a serial ASCII character or an
external trigger pulse to start the read cycle.
Serial Cmd:
<K200,5>
4-10
MS-3 Laser Scanner User Manual
Read Cycle
Trigger Filter Duration
Usage:
Trigger Filter Duration is useful where trigger bounce could cause false
triggers.
Definition:
Trigger Filter Duration can prevent trigger bounce from falsely triggering
the scanner by limiting the time in which trigger pulses can be received.
Serial Cmd:
<K200,trigger mode,trigger filter duration>
Default:
244 (0.0099796 seconds)
Options:
0.0000818 to 2.6803815 seconds
External Trigger State
Note: External Level, External Edge, or Serial Data or Edge trigger mode must be
enabled for External Trigger to take effect.
Usage:
Users can select the trigger polarity that will operate with their systems.
Definition:
Determines whether a positive or negative transition will initiate the read
cycle.
Serial Cmd:
<K202,external trigger state>
Default:
Positive
Options:
0 = Negative
MS-3 Laser Scanner User Manual
1 = Positive
4-11
Serial Trigger
Serial Trigger
Usage:
Allows the user to define the trigger character that initiates the read cycle.
Definition:
An on-line host command composed of a single ASCII host serial trigger
character that initiates or ends the read cycle.
Trigger characters are of two types: delimited and non-delimited. A delimited
character is entered within angle brackets delimiters < >.
A non-delimited trigger character is one that either starts or ends the read
cycle and is NOT enclosed by delimiters such as < >.
Serial Trigger Character
Usage:
Useful in applications where a single serial character enclosed in angle
brackets initiates the read cycle.
Definition:
A trigger character is one that starts the read cycle, is enclosed by delimiters
< > and can only be sent when the trigger mode is set to Serial Data or
Serial Data & Edge.
Serial Cmd:
<K201,serial trigger character>
Default:
GS (corresponds to ^] displayed in the embedded menu)
Options:
A single ASCII character, including control characters.
Note: The following characters cannot be used as serial trigger characters: NUL
(0x00), an existing host command character, or an online protocol character.
Note: Serial Data or Serial Data & Edge triggering mode must be enabled for Serial
Trigger Character to take effect.
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MS-3 Laser Scanner User Manual
Read Cycle
Non-delimited Start and Stop Characters
Note: If the serial trigger is set to an existing command, it will override the command. The
command will no longer be valid. For example, if the serial trigger is <Z>, parameters will
no longer be saved, but when the save command is sent (<Z>), the scanner will trigger.
Note: In multidrop and user-defined protocols, the start and stop characters must be
delimited.
Both Start and Stop non-delimited characters can be defined and will function according
to the trigger event, as follows:
When defining Start and Stop trigger characters, the following rules apply:
• In External Edge the scanner looks only for the Start Trigger Character and ignores
any Stop Trigger Character that may be defined.
• In External Level, the Start Trigger Character begins the read cycle and Stop Trigger
Character ends it. Note that even after a symbol has been decoded and the symbol
data transmitted, the scanner remains in External Level trigger read cycle until a Stop
character is received.
• In Serial Data & Edge trigger mode, either a Start Trigger Character or a hardware
trigger can start an Edge trigger read cycle.
Start Character (non-delimited)
Usage:
It is useful in applications where different characters are required to start
and end a read cycle.
Definition:
A single ASCII host serial trigger character that starts the read cycle and is
not enclosed by delimiters such as < and >.
Serial Cmd:
<K229,start trigger character>
Default:
Null (disabled)
Options:
Two hex digits representing an ASCII character except <, >, XON and
XOFF.
Stop Character (non-delimited)
Usage:
It is useful in applications where different characters are required to start
and end a read cycle.
Definition:
A single ASCII host serial trigger character that ends the read cycle and is
not enclosed by delimiters such as < and >.
Serial Cmd:
<K230,stop trigger character>
Default:
Null (disabled)
Options:
Two hex digits representing an ASCII character except <, >, XON and XOFF.
See Appendix E, "ASCII Table", for ASCII character information.
MS-3 Laser Scanner User Manual
4-13
End of Read Cycle
End of Read Cycle
Note: When to Output must be set to End of Read Cycle before this command can be
active.
Definition:
The read cycle is the time during which the scanner will attempt to read and
decode a symbol. At the end of a read cycle the scanner stops reading
symbols and sends the symbol data or noread message to the host.
End of Read Cycle Mode
Definition:
A read cycle can be terminated by a new trigger, a timeout, or a combination of both.
Serial Cmd:
<K220,end of read cycle,read cycle timeout>
Options:
0 = Timeout
1 = New Trigger
2 = Timeout & New Trigger
Note: When operating in Continuous Read or Continuous Read 1 Output, the scanner
is always in the read cycle.
Timeout
Usage:
Typically used with Serial or Edge and Continuous One.
It is effective in highly controlled applications when the maximum length of
time between objects can be predicted. It assures that a read cycle ends
before the next bar coded object appears, giving the system extra time to
decode and transmit the data to the host.
Definition:
Timeout ends the read cycle when the time set in Read Cycle Timeout
elapses or “times out.”
If in Continuous Read 1 Output, a timeout initiates a new read cycle and
allows the same symbol to be read again.
With either External Edge, Serial Data, or Serial Data & Edge enabled, a
timeout ends the read cycle and symbol data or a noread message is sent
to the host.
With External Level enabled, the read cycle does not end until the falling
edge trigger or a timeout occurs. The next read cycle does not begin until
the next rising edge trigger.
4-14
MS-3 Laser Scanner User Manual
Read Cycle
New Trigger
Usage:
New Trigger is an effective way to end a read cycle when objects move
past the scanner at irregular intervals (not timing dependent).
Definition:
New Trigger ends the current read cycle and initiates a new one when a
new trigger occurs. New Trigger refers only to a “rising edge” trigger.
With either External Edge, Serial, or Serial or Edge enabled, an edge or
serial trigger ends a read cycle and initiates the next read cycle.
In the case of External Level, a falling edge trigger ends the read cycle but
the next read cycle does not begin until the occurrence of the next rising
edge trigger.
Note: When New Trigger is enabled and if not in External Level mode, Laser On/Off will
have no effect. When noreads occur, the laser will remain on.
Timeout or New Trigger
Usage:
Useful in applications that require an alternative way to end the read cycle.
For example, if an assembly line should stop completely or the intervals
between objects are highly irregular.
Definition:
Timeout or New Trigger is identical to Timeout, except that a timeout or a
new trigger (whichever occurs first) ends the read cycle.
Read Cycle Timeout
Usage:
It is useful in many tightly controlled applications which require a read cycle
to end before the next object appears and therefore need the flexibility of a
timeout adjustment.
Definition:
Read Cycle Timeout is the time span of the read cycle and is represented
in 10 mS increments. It is used in conjunction with External Edge or Serial
Trigger.
Serial Cmd:
<K220,end of read cycle,read cycle timeout>
Default:
100 (Corresponds to one second or 1000 mS.)
Options:
0 to 65535. (Divide any positive number entered by 100 to determine the
time in seconds.)
Timeout does not function when in Continuous or Level read cycle modes.
Continuous 1: The scanner will only read a given symbol once until a timeout occurs or a
different symbol is presented.
Note: A minimum setting of 2 is recommended.
Note: Timeout or Timeout or New Trigger under End of Read Cycle must be enabled
for Read Cycle Timeout to take effect.
MS-3 Laser Scanner User Manual
4-15
Decodes Before Output
Decodes Before Output
Note: When setting up, determine if the scanner’s scan rate is capable of scanning your
longest symbol the required number of times.
Decodes Before Output Mode
Usage:
Useful when the highest level of reliability is required.
Definition:
When consecutive is enabled, the number set in Decodes Before Output
must be achieved consecutively before decoded data is sent. For example,
if set to Number Before Output is set to 5, then the data will be output
whenever five decodes occur in succession.
When the default non-consecutive is set, whenever a cumulative number of
decodes is achieved, decoded data is sent. For example, if non-consecutive is enabled and Decodes Before Output is set to 10, then data will be
sent when the total number of decodes reaches 10 regardless of the number of bad reads between decodes.
Serial Cmd:
<K221,number before output,decodes before output mode>
Default:
Non-consecutive
Options:
0 = Non-consecutive
1 = Consecutive
Number Before Output
Usage:
This is a very useful feature to increase reliability of reads for symbologies
that do not have internal error checking such as Pharmacode.
Definition:
The number of decodes required per symbol before a symbol’s decoded
data is sent. It requires the scanner to successfully decode a symbol a designated number of times before it is sent. If it doesn’t achieve the number of
good reads during the read cycle, then a noread will be sent.
Note: Higher settings will decrease throughput speed.
Serial Cmd:
<K221,number before output,decodes before output mode>
Default:
1
Options:
1 to 255
4-16
MS-3 Laser Scanner User Manual
Read Cycle
Scanner Setup
Scanner Setup includes Gain, Scan Speed, Laser Power, and AGC.
Gain Level
Usage:
Can be useful for fine-tuning gain or when portions of analog signals spike,
as in the case of specular reflection or extraneous noise.
Definition:
Sets a voltage amplitude value for the analog circuitry.
Serial Cmd:
<K504,gain level,AGC sampling,AGC min,AGC max>
Default:
90 (high density scanner) or 110 (low density scanner).
Note: Gain Level is optimized at the factory before shipment; the default
value may not be 90.
Options:
40 to 255
Scan Speed
Usage:
To ensure a minimum number of scans, faster scan speeds are typically
used for fast moving symbols and/or longer symbols with larger bar widths.
See “Formulas for Number of Decodes” on page A-27.
Note: Scan beams move faster across symbols further out in the scan
range since the moving beam is being projected from a spinning mirror.
Definition:
Allows the user to set the number of scans per second by controlling the
spinning mirror motor speed.
Serial Cmd:
<K500,scan speed>
Default:
50 (x 10) Low density scanner
35 (x 10) High density scanner
Options:
300 to 1000
MS-3 Laser Scanner User Manual
4-17
Scanner Setup
Laser Power
Usage:
Used to optimize read performance at different distances. Typically higher
power is used at greater distances.
Definition:
Allows the user or calibration routine to select laser power setting.
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
High Power (Low density scanner)
Medium Power (High density scanner)
Options:
0 = Low
1 = Medium
2 = High
Automatic Gain Control (AGC)
AGC Sampling Mode
Usage:
AGC Sampling allows you to specify how automatic gain control sampling
will be done.
Definition:
AGC is the acronym for Automatic Gain Control. AGC increases the depth
of field by attempting to maintain signal strength at a constant level regardless of the range of the bar code symbol.
Serial Cmd:
<K504,gain level,AGC sampling mode,AGC min,AGC max>
Default:
Continuous
Options:
0 = Disabled
1 = Leading Edge
2 = Continuous
Disabled
Usage:
Disabled is not recommended, but can be useful in certain applications in
which symbols do not require a large depth of field.
Definition:
When AGC Sampling is set to Disabled, gain levels can only be manually
controlled by the Gain command.
Leading Edge
Usage:
Leading Edge is rarely used, but in some cases can improve scan rates
when symbols are skewed and the leading edge of a symbol is difficult to
locate.
Definition:
Finds the leading edge of a symbol by looking for a 40µS quiet zone followed by the number of transitions set in "Transition Counter" (page 420), stores the highest value of the samples, and adjusts the AGC accordingly at the end of the scan.
4-18
MS-3 Laser Scanner User Manual
Read Cycle
Continuous
Usage:
Continuous is the default and the preferred mode for sampling analog signal amplitude.
Definition:
Samples AGC throughout the scan at the rate set in "Transition Counter"
on page 4-20, averages the sample values, and adjusts the AGC value at
the end of the scan.
AGC Minimum
(Read Only)
Definition:
Limits the minimum range of the available gain.
Serial Cmd:
<K504,gain level,AGC sampling mode,AGC min,AGC max>
Send <K504?> for a readout.
Default:
70
Options
40 to 250
AGC Maximum
(Read Only)
Definition:
Limits the maximum range of the available gain.
Serial Cmd:
<K504,gain level,AGC sampling mode,AGC min,AGC max>
Send <K504?> for a readout.
Default:
245f
Options
60 to 255
Symbol Detect Status
Definition:
During the read cycle, the scanner counts the number of bar and space
transitions defined in the Transition Counter. If the count matches or
exceeds the threshold, the scanner will perform AGC routines. When
enabled, a bad symbol or no symbol message can be output rather than a
noread message.
Serial Cmd:
<K505,symbol detect status,transition counter>
Default:
Disabled
Options:
0 = Disabled
MS-3 Laser Scanner User Manual
1 = Enabled
4-19
Scanner Setup
Transition Counter
Usage:
Can be useful in certain application where extraneous objects in the field of
view might require a higher threshold.
Definition:
Determines the number of bar/space transitions that are sampled before
AGC can be resolved.
Definition:
Determines the number of bar/space transitions that must be read before a
symbol is considered present and AGC can be resolved.
Serial Cmd:
<K505,symbol detect status,transition counter>
Default:
14
Options:
0 to 255
Note: Transition Counter is used for both AGC and symbol detection routines (see "No
Symbol Message" on page 6-10.
Maximum Element
Usage:
Caution: Do not change this parameter unless instructed by a your technical representative.
Definition:
Maximum Element represents the maximum bar element width, as measured in micro seconds, that’s allowed before a video reset occurs (default
to white).
Serial Cmd:
<K502,maximum element>
Default:
1500 (45.75µS)
Options:
1 to 65535 (.035µS to 2294µS increments)
Scan Width Enhance
Usage:
This option should be enabled if large portions of scan width are needed.
For example, if a large character count symbol is used to the edge of the
scan or is using 70-80% of total scan width.
Definition:
Scan width Enhance tends to trade depth for width.
Disable if outside edge/long range performance is needed.
Serial Cmd:
<K511,scan width enhance>
Default:
Enabled
Options:
0 = Disabled
4-20
1 = Enabled
MS-3 Laser Scanner User Manual
Read Cycle
Laser Setup
Laser Setup includes Laser On/Off and Laser Framing.
Note: See also Auto Frame on page 9-6 for more details on laser framing.
Laser On/Off Status
Usage:
Laser On/Off extends the life of the laser. It is useful where there are significant
time gaps between symbols. It also provides visual confirmation of a read
cycle timeout and minimizes laser exposure to people.
Definition:
When enabled, the laser is ON only during the read cycle. When disabled,
the laser operates continuously.
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Laser Framing Status
Usage:
Useful in avoiding highly reflective objects, for filtering out unwanted signals,
or avoiding the wrong symbols.
Definition:
When Laser Framing is disabled, the laser is ON for 100 percent of the full
scan. When enabled, the extent of the laser arc is determined by the Laser
On Position and Laser Off Position settings.
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
To adjust laser framing automatically, click the Calibration button and click the Auto
Frame button.
Note: Because scan widths are not always perfectly symmetrical, the most effective way
to setup laser framing is to experiment with the Laser On Position and Laser Off Position
commands until you get the best results.
MS-3 Laser Scanner User Manual
4-21
Laser Setup
Laser On Position
Definition:
Percentage of the full scan arc that the
scan beam moves through before the
laser turns ON. For example, if set for
30, the laser will be off during the first
30 percent of the scan.
When Laser Framing is disabled, the
laser is ON for 100 percent of the full scan.
When Laser Framing is enabled, the
laser turns ON at the specified percentage
of the scan.
Laser On Position
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
10
Options:
10 to 80
Laser Off Position
Definition:
Percentage of the full scan arc that the
scan beam moves through before the
laser turns OFF.
Note: Laser Off Position must
always exceed the value of Laser On
Position for an actual scan to take place.
Laser Off Position
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
95
Options:
20 to 95
4-22
MS-3 Laser Scanner User Manual
Read Cycle
Laser Power
Definition:
This parameter allows the user to select a laser power setting as follows:
Serial Cmd:
<K700,laser on/off status,laser framing status,laser on position,laser off
position,laser power>
Default:
High
Options:
0 = Low (~0.6mW)
1 = Medium (~1.0mW)
2 = High (~1.5mW)
MS-3 Laser Scanner User Manual
4-23
Laser Setup
4-24
MS-3 Laser Scanner User Manual
MS-3 Laser E.book Page 1 Monday, August 30, 2004 11:09 AM
Chapter
Symbologies
5
Chapter Contents
Symbology by Serial Command ..................................................................5-2
Code 39 .......................................................................................................5-3
Code 128 .....................................................................................................5-6
Interleaved 2 of 5.......................................................................................5-13
Codabar.....................................................................................................5-17
Code 93 .....................................................................................................5-24
Narrow Margins .........................................................................................5-27
Symbology ID ............................................................................................5-28
Background Color......................................................................................5-29
Autodiscriminate ........................................................................................5-29
This section describes the various symbol types that can be read and decoded by the
reader.
Code 39 is enabled by default. To enable all codes, send a <P> serial command to the
scanner from the Terminal window.1
See http://www.aimusa.org/standards/aimpubs.htm for additional information
about symbologies.
Note: When assigning characters in user-defined fields, the characters NULL <> and ,
can only be entered through embedded menus, not through ESP or serial commands.
1. If using an I 2/5 symbol, verify that the number of characters in the symbol being scanned
matches the code length enabled for the I 2/5 symbol type (default is 10 and 6).
MS-3 Laser Scanner User Manual
5-1
Symbologies by ESP
Symbologies by ESP
Click this button to bring up
the Symbologies menu.
To open nested
options, single-click
the +.
To change a setting,
double-click the setting
and use your cursor to
scroll through the
options.
Symbologies by Serial Command
Command Title
Code 39
Code 128
Interleaved 2 of 5
Codabar
UPC/EAN
Code 93
Pharmacode
Narrow Margins/
Symbology ID
Background Color
5-2
Format
<K470,status,check digit status,check digit output,large intercharacter gap,fixed symbol length status,symbol length,full ASCII set>
<K474,status,fixed symbol length status,symbol length,EAN-128
status,output format,application record separator status,application
record separator character,application record brackets,application
record padding>
<K472,status,check digit status,check digit output status,symbol
length #1,symbol length #2,unused,range mode>
<K471,status,start & stop match status,start & stop output status,large intercharacter gap,fixed symbol length status,fixed symbol
length,check digit type,check digit output status>
<K473,UPCstatus,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
<K475,status,fixed symbol length status,symbol length>
<K477,status,fixed bar length status,fixed bar length,min. no. of
bars,bar widths,direction,fixed threshold value>
<K450,narrow margins status,symbology ID status>
<K451,background color>
MS-3 Laser Scanner User Manual
Symbologies
Code 39
Usage:
Code 39 is considered the standard for non-retail bar code applications.
Definition:
An alphanumeric symbol with unique start/stop symbol patterns, composed
of 9 black and white elements per character, of which 3 are wide.
Code 39 Status
Serial Cmd:
<K470,status,check digit status,check digit output,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Default:
Enabled
Note: This is the only symbol type enabled by default.
Options:
0 = Disabled
1 = Enabled
Check Digit Status (Code 39)
Serial Cmd:
<K470,code 39 status,check digit status,check digit output,large intercharacter gap,fixed symbol length status,symbol length,full ASCII set>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Check Digit Output (Code 39)
Usage:
Check Digit Output Status, added to the symbol, provides additional security.
Definition:
When enabled, the check digit character is read and sent along with the
symbol data. When disabled, symbol data is sent without the check digit.
Note: With Check Digit Output Status and an External or Serial trigger
option enabled, an invalid check digit calculation will cause a noread message to be transmitted at the end of the read cycle.
Serial Cmd:
<K470,status,check digit status,check digit output,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Default:
Disabled
Options:
0 = Disabled
MS-3 Laser Scanner User Manual
1 = Enabled
5-3
Code 39
Large Intercharacter Gap (Code 39)
Usage:
Large Intercharacter Gap is helpful for reading symbols that are printed
out of specification.
Caution: Do not use Large Intercharacter Gap with Narrow Margins
enabled since a large intercharacter gap (over 3x) could cause a narrow
margins (5x) to be interpreted as an intercharacter gap.
Definition:
When enabled, the scanner can read symbols with gaps between symbol
characters that exceed three times (3x) the narrow element width.
Serial Cmd:
<K470,status,check digit status,check digit output,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Fixed Symbol Length Status (Code 39)
Definition:
When enabled, the scanner will check the symbol length against the symbol
length field. If disabled, any length is considered a valid symbol.
Serial Cmd:
<K470,status,check digit status,check digit output status,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Symbol Length (Code 39)
Usage:
Fixed symbol Length helps prevent truncations and increases data integrity by ensuring that only one symbol length will be accepted.
Definition:
Specifies the exact number of characters that the scanner will recognize
(this does not include start and stop and check digit characters). The scanner ignores any symbol not having the specified length.
Serial Cmd:
<K470,status,check digit status,check digit output,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Default:
10
Default:
1 to 64
5-4
MS-3 Laser Scanner User Manual
Symbologies
Full ASCII Set (Code 39)
Usage:
Definition:
Serial Cmd:
Default:
Options:
Must be enabled when reading characters outside the standard character
set (0-9, A-Z, etc.)
User must know in advance whether or not to use Full ASCII Set option.
Since Full ASCII Set requires two symbol words to encode one character, it
is less efficient.
Standard Code 39 encodes 43 characters; zero through nine, capital “A”
through capital “Z”, minus symbol, plus symbol, forward slash, space, decimal point, dollar sign and percent symbol. When Full ASCII Set is enabled,
the scanner can read the full ASCII character set, from 0 to 255.
<K470,status,check digit status,check digit output,large intercharacter
gap,fixed symbol length status,symbol length,full ASCII set>
Disabled
0 = Disabled
1 = Enabled
MS-3 Laser Scanner User Manual
5-5
Code 128
Code 128
Usage:
Code 128 is useful in applications with tight spots and high security needs.
Definition:
A very dense alphanumeric symbology. It encodes all 128 ASCII characters; it is continuous, has variable length, and uses multiple element widths
measured edge to edge.
Code 128 Status
Serial Cmd:
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Fixed Symbol Length Status (Code 128)
Definition:
When enabled, the scanner will check the symbol length against the symbol
length field. When disabled, any length is considered a valid symbol.
Serial Cmd:
<K474,status,fixed symbol length status,fixed symbol length,EAN-128
status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Symbol Length (Code 128)
Usage:
Fixed Symbol Length helps prevent truncations and increases data integrity by ensuring that only a fixed symbol length will be accepted.
Definition:
Specifies a fixed number of characters that the scanner will recognize (this
does not include start and stop and check digit characters). The scanner
ignores any symbol not having the specified length.
Serial Cmd:
<K474,status,fixed symbol length status,fixed symbol length,EAN-128
status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Default:
10
Options:
1 to 64
Note: Fixed Symbol Length Status must be enabled for Symbol Length to take effect.
5-6
MS-3 Laser Scanner User Manual
Symbologies
EAN-128 Status
Note: Code 128 must be Enabled for EAN-128 to function.
Usage:
Definition:
Used as a standard for shipping symbols.
A subset of Code 128, with extended features. (For more information, see
GS1 US at:
http://www.gs1us.org/gs1us.html
Or see AIM, at:
http://www.aimglobal.org/standards/aimpubs.asp.
Serial Cmd:
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Disabled
0 = Disabled
1 = Enabled
2 = Required
Default:
Options:
If set to Enabled, symbols can be read with or without a function 1 character in the first
position.
If set to Required, the symbol must have a function 1 in the first position and conform to
EAN format in order to decode the symbol.
Output Format (Code 128)
Usage:
Definition:
Serial Cmd:
Default:
Options:
Application Record is useful in applications in which the software can utilize application record formatting to help automate the processing of its
EAN-128 data.
Offers an option between Standard EAN-128 and Application Record format.
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Standard
0 = Standard
1 = Application Record
In Standard UCC/EAN-128 application identifiers and data fields are sent, but none of the
formatting (separators, parentheses, padding) will be included.
Application Record is a variation of UCC/EAN-128 that allows the user to define separators between data fields, enclose application identifiers in parentheses, and enable padding (zeros) for variable length fields.
Note: If an illegal Application Record format is detected, the scanner will process it as a
noread and output a noread message (if enabled).
MS-3 Laser Scanner User Manual
5-7
Code 128
Application Record Separator Status (Code 128)
Definition:
Serial Cmd:
Default:
Options:
When enabled, a separator character is inserted between application
records.
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record separator character,application record brackets,application record padding>
Disabled
0 = Disabled
1 = Enabled
Note: Output Format must be set to Application Record before this parameter can take
effect.
Note: When set to Disable, app rec sep char is forced to NUL. When set to Enable,
Application Record Separator Character must also be sent in the same command.
Application Record Separator Character (Code 128)
Note: Application Record Separator Character Status is enabled by setting the parameter to any value other than a null.
Definition:
Serial Cmd:
Default:
Options:
Allows the user to define an ASCII character as an application record separator.
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
, (comma)
User Defined ASCII character
Note: Has no effect unless Application Record Separator Status is enabled.
Application Record Brackets (Code 128)
Definition:
Serial Cmd:
Default:
Options:
When enabled, parentheses ( ) are added to enclose application identifiers.
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Disabled
0 = Disabled
1 = Enabled
Note: Output Format must be set to Application Record before this parameter can take
effect.
5-8
MS-3 Laser Scanner User Manual
Symbologies
Application Record Padding (Code 128)
Definition:
Serial Cmd:
Default:
Options:
Padding is the insertion of zeros to make up the maximum length of a variable application record data field, except for the last field which does not
require padding.
When enabled, padding is included. When disabled, padding is omitted.
Note: Padding is never added to fixed length fields or to the last data field of
a symbol. Enabling or disabling Record Padding will have no effect on
these.
<K474,status,fixed symbol length status,fixed symbol length,EAN-128 status,output format,application record separator status,application record
separator character,application record brackets,application record padding>
Disabled
0 = Disabled
1 = Enabled
Note: Output Format must be set to Application Record before this parameter can take
effect.
MS-3 Laser Scanner User Manual
5-9
Interleaved 2 of 5
Interleaved 2 of 5
Usage:
It is has been popular because it is the most dense symbol for printing
numeric characters less than 10 characters in length; however we do not
recommend this symbology for any new applications because of inherent
problems such as truncation.
Definition:
A dense, continuous, self-checking, numeric symbology. Characters are
paired together so that each character has five elements, two wide and
three narrow, representing numbers 0 through 9, with the bars representing
the first character and the interleaved spaces representing the second character. (A check digit is highly recommended.)
Important: You must set Symbol Length in order to decode I 2/5 symbols.
Interleaved 2 of 5 Status
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Check Digit Status (Interleaved 2 of 5)
Usage:
It is typically not used but can be enabled for additional security in applications where the host requires redundant check digit verification.
Definition:
An error correcting routine in which the check digit character is added.
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Check Digit Output Status (Interleaved 2 of 5)
Definition:
When enabled, a check digit character is sent along with the bar symbol
data for added data security.
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
Disabled
Options:
0 = Disabled
5-10
1 = Enabled
MS-3 Laser Scanner User Manual
Symbologies
Symbol Length #1 (Interleaved 2 of 5)
Usage:
With Industrial 2/5, two symbol lengths can be defined. When using only
one symbol length in an application, setting Symbol Length #2 to 0 (zero)
to ensure data integrity is recommended.
Definition:
Specifies a number of characters that the scanner will recognize, including
start and stop and check digit characters. The scanner ignores any symbol
smaller than the specified length. Because Industrial 2/5 is a continuous
symbol, it is prone to substitution errors. Hence, a symbol length must be
defined and a bar symbol must contain an even number of digits.Note: If
start, stop or check digits are used, they are not included in the symbol
length count.
Note: If Range Mode is set to Enable, the settings for Symbol Length #1
and Symbol Length #2 will define the range of symbol lengths that can be
decoded.
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
10
Options:
0 to 64
Since I 2/5 characters are paired, symbol length must be set to an even
number. If Check Digit is enabled, add 2 to your symbol length. For example, if your symbol is 10 characters plus a check digit, then enable Symbol
Length for 12.
Note: Typically, when printing an I 2/5 symbol with an odd number of digits,
a 0 will be added as the first character.
MS-3 Laser Scanner User Manual
5-11
Interleaved 2 of 5
Symbol Length #2 (Interleaved 2 of 5)
Usage:
If using a second symbol, a zero or any even symbol length in the option
range may be specified. If not using a second symbol, set Symbol Length
#2 to 0 to ensure data integrity.
Definition:
Specifies a number of characters that the scanner will recognize, including
start and stop and check digit characters. The scanner ignores any symbol
smaller than the specified length.
Note: If Range Mode is set to Enable, the settings for Symbol Length #1
and Symbol Length #2 will define the range of symbol lengths that can be
decoded.
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
6
Options:
0 to 64
Since I 2/5 characters are paired, symbol length must be set to an even
number. If Check Digit is enabled, add 2 to your symbol length. For example, if your symbol is 10 characters plus a check digit, then enable Symbol
Length for 12.
Note: Typically, when printing an I 2/5 symbol with an odd number of digits,
a 0 will be added as the first character.
Range Mode Status (Interleaved 2 of 5)
Usage:
Useful in applications where symbol lengths may vary.
Definition:
Allows user the option to define a symbol length range for I–2 of 5.
Serial Cmd:
<K472,status,check digit status,check digit output status,symbol length
#1,symbol length #2,unused,range mode>
Default:
0
Options:
0 = Disabled
1 = Enabled
When set to Enabled, minimum and maximum symbol lengths will be
defined by Symbol Length #1 and Symbol Length #2.
5-12
MS-3 Laser Scanner User Manual
Symbologies
Codabar
Usage:
Used in photo-finishing and library applications. Formerly used in some
medical applications but not typically used in newer applications.
Definition:
Codabar is a 16-character set (0 through 9, and the characters $, :, /, ., +,
and –) with start/stop codes and at least two distinctly different bar widths.
Codabar Status
Serial Cmd:
<K471,status,start & stop match status,start & stop output,large intercharacter gap,fixed symbol length status,symbol length,check digit type,check
digit output status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Start & Stop Match Status (Codabar)
Usage:
Used to increase security of symbology.
Definition:
Requires the Codabar start and stop characters (a, b, c, or d) to match
before a valid read can occur.
Serial Cmd:
<K471,status,start & stop match status,start & stop output status,large
intercharacter gap,fixed symbol length status,symbol length,check digit
type,check digit output status>
Default:
Enabled
Options:
0 = Disabled
MS-3 Laser Scanner User Manual
1 = Enabled
5-13
Codabar
Start & Stop Output Status (Codabar)
Usage:
Used to verify matching.
Definition:
Causes the start and stop characters to be transmitted with symbol data.
Serial Cmd:
<K471,status,start & stop match status,start & stop output status,large
intercharacter gap,fixed symbol length status,symbol length,check digit
type,check digit status,check digit output status>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
Large Intercharacter Gap (Codabar)
Usage:
It is helpful for reading symbols that are printed out of specification.
Caution: Do not use Large Intercharacter Gap with Narrow Margins
enabled since enabling Large Intercharacter Gap (over 3x) could cause a
narrow margins (5x) to be interpreted as an intercharacter gap.
Definition:
Instructs the scanner to read symbols with gaps between characters
exceeding three times the narrow element width.
Serial Cmd:
<K471,status,start & stop match status,start & stop output status,large
intercharacter gap,fixed symbol length status,symbol length,check digit
type,check digit output status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Fixed Symbol Length Status (Codabar)
Usage:
Restricting symbol lengths can help prevent truncations and increase data
integrity by ensuring that only one or a defined range of symbol lengths will
be accepted.
Definition:
When set to Fixed, the scanner will check the symbol length against the
Symbol Length field. When set to Any/Minimum, any length is considered
a valid symbol. The following rules apply:
Serial Cmd:
<K471,status,start & stop match status,start & stop output status,large
intercharacter gap,fixed symbol length status,symbol length,check digit
type,check digit output status>
Default:
Any/Minimum
Options:
0 = Disabled
5-14
1 = Enabled
MS-3 Laser Scanner User Manual
Symbologies
Symbol Length (Codabar)
Definition:
Specifies the exact number of characters that the scanner will recognize
(this does not include start and stop and check digit characters). The scanner ignores any symbol not having the specified length.
Serial Cmd:
<K471,status,start & stop match status,start & stop output status,large
intercharacter gap,fixed symbol length status,symbol length,check digit
type,check digit status,check digit output status>
Default:
10
Options:
1 to 64
Note: Fixed Symbol Length Status must be enabled for Symbol Length to take effect.
Note: Because of symbology limitations, setting Symbol Length to any number less than
four will produce undetermined results.
Check Digit Status (Codabar)
Usage:
Modulus 16 is used in the photo-finishing market.NW7 is used in Japanese
markets.
Definition:
Allows the user to select the check digit type Codabar will use.
Serial Cmd:
<K471,status,start & stop match,start & stop output status,large intercharacter gap,fixed symbol length status,fixed symbol length,check digit
type,check digit status,check digit output status>
Default:
Disabled
Options:
0 = Disabled
1 = Modulus 16
2 = NW 7
3 = Both
Check Digit Output Status (Codabar)
Usage:
For additional security a check digit can be added to the symbol.
Definition:
When enabled, the check digit character is sent along with the symbol data.
When disabled, symbol data is sent without the check digit.
Serial Cmd:
<K471,status,start & stop match,start & stop output status,large intercharacter gap,fixed symbol length status,symbol length,check digit type,check
digit output status>
Default:
Disabled
Options:
0 = Disabled
MS-3 Laser Scanner User Manual
1 = Enabled
5-15
UPC/EAN
UPC/EAN
Usage:
Definition:
Used primarily in POS application in the retail industry. It is commonly used
in applications in combination with Matchcode when there is a need to verify that the right product is being placed in the right packaging.
UPC (Universal Product Code) is a fixed length numeric, continuous symbology. UPC can have two- or five-digit supplemental symbol data following
the normal code. The U.P.C., Version A (U.P.C., A) symbol is used to
encode a 12 digit number. The first digit is the number system character,
the next five are the manufacturer number, the next five are the product
number, and the last digit is the checksum character.
When enabled, the scanner will read UPC version A and UPC version E
only.
UPC Status
Serial Cmd:
Default:
Options:
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
Disabled
0 = Disabled
1 = Enabled
EAN Status
Usage:
Definition:
Serial Cmd:
Default:
Options:
5-16
EAN is the European version of the UPC symbology and is used in European market applications.
EAN is a subset of UPC. When enabled, the scanner will read UPC version
A, UPC version E, EAN 13, and EAN 8. It also appends a leading zero to
UPC version A symbol information and transmits 13 digits. If transmitting 13
digits when reading UPC version A symbols is not desired, disable EAN.
Note: The extra character identifies the country of origin.
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
Disabled
0 = Disabled
1 = Enabled
MS-3 Laser Scanner User Manual
Symbologies
Supplementals Status (UPC/EAN)
Usage:
Definition:
Serial Cmd:
Default:
Options:
Reads Supplementals typically used in publications and documentation.
A supplemental is a 2 or 5 digit symbol appended to the main symbol.
When set to Enabled or Required, the scanner reads supplemental symbol
data that has been appended to the standard UPC or EAN codes.
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
Disabled
0 = Disabled
1 = Enabled
2 = Required
Disabled
UPC Supplementals will not be decoded.
Enabled
When enabled, the scanner will try to decode a main and a supplemental. However, if a supplemental is not decoded, at the end of the read cycle, the main will be sent by itself. The UPC main and
supplemental symbols are considered to be one symbol and will be treated as such.
Required
When set to Required and either the main or supplemental symbol is not read, a single
noread condition results. The UPC main and supplemental symbols are treated as one
symbol.
For example, if Supplementals is set to Required, Separator is enabled, and an asterisk
is defined as the UPC separator character, then the data will be displayed as: MAIN *
SUPPLEMENTAL.
Note: Under no circumstances will supplemental symbol data be sent without a main symbol.
Note: If additional symbols—other than the main or supplemental—will be read in the
same read cycle, Number of symbols should be set accordingly.
Separator Status (UPC/EAN)
Note: UPC must be enabled for EAN to take effect.
Usage:
Definition:
Serial Cmd:
Default:
Options:
Allows user to distinguish between the main and Supplemental symbols.
Allows the user to insert a character between the standard UPC or EAN
symbol and the supplemental symbol when Supplementals is set to
Enabled or Required.
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
Disabled
0 = Disabled
1 = Enabled
MS-3 Laser Scanner User Manual
5-17
UPC/EAN
Separator Character (UPC/EAN)
Note: If Separator Character has been changed to any other character and you wish to
re-define the separator as a comma, you will need to use ESP or the embedded menu.
Usage:
Definition:
Serial Cmd:
Default:
Options:
As required by the application.
Allows the user to change the separator character from a comma to a new
character.
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
, (comma)
Any ASCII character
Note: Whenever Separator Character is defined as a comma (,) sending a <K473,s?>
command will return the current settings including the separator character comma which
appears after the separator status comma.
UPC-E Output to UPC-A (UPC/EAN)
Usage:
Definition:
Serial Cmd:
Default:
Options:
5-18
Useful for applications that require UPC-A output.
Allows the user to change the output from UPC-E to UPC-A.
<K473,UPC status,EAN status,supplementals status,separator status,separator character,unused,UPC-E output as UPC-A>
, (comma)
Any ASCII character
MS-3 Laser Scanner User Manual
Symbologies
Code 93
Usage:
Definition:
Used occasionally in clinical industry.
Code 93 is a variable length, continuous symbology employing four element
widths. Each Code 93 character has nine modules that may be either black
or white. Each character contains three bars and three spaces.
Code 93 Status
Serial Cmd:
Default:
Options:
<K475,status,fixed symbol length status,fixed symbol length>
Disabled
0 = Disabled
1 = Enabled
Fixed Symbol Length Status (Code 93)
Definition:
Serial Cmd:
Default:
Options:
When enabled, the scanner will check the symbol length against the symbol
length field. When disabled, any length is considered a valid symbol.
<K475,status,fixed symbol length status,symbol length>
Disabled
0 = Disabled
1 = Enabled
Symbol Length (Code 93)
Usage:
Definition:
Serial Cmd:
Default:
Options:
Fixed Symbol Length helps prevent truncations and increases data integrity by ensuring that only one symbol length will be accepted.
Specifies the exact number of characters that the scanner will recognize
(this does not include start and stop and check digit characters). The scanner ignores any symbol not having the specified length.
<K475,status,fixed symbol length status,fixed symbol length>
10
1 to 64
MS-3 Laser Scanner User Manual
5-19
Pharmacode
Pharmacode
Usage:
Definition:
Pharmacode is used mostly with packaging for the pharmaceuticals industry.
The symbol encodes up to five different numbers, each with its own color
which may be entered in decimal or “binary” format with a 1 represented by a
thick bar and a 0 represented by a thin bar. Bar width is independent of
height.
In decimal format, each part can be up to 999999.
In binary format, each input have up to 19 ones and zeros.
Note: It is recommended that you disable AGC before enabling Pharmacode.
Pharmacode Status
Serial Cmd:
Default:
Options:
<K477,status, fixed bar count status,fixed bar count, min. no. of bars,bar
widths,direction,fixed threshold value>
Disabled
0 = Disabled
1 = Enabled
Fixed Bar Count Status (Pharmacode)
Serial Cmd:
Default:
Options:
<K477,status,fixed bar count status, fixed bar count, min. no. of bars,bar
widths,direction,fixed threshold value>
Disabled
0 = Disabled
1 = Enabled
Fixed Bar Count (Pharmacode)
Serial Cmd:
Default:
Options:
<K477,status,fixed bar count status, fixed bar count, min. no. of bars, bar
widths,direction,fixed threshold value>
10
2 to 16
Minimum Bars (Pharmacode)
Serial Cmd:
Default:
Options:
5-20
<K477,status,fixed bar count status, fixed bar count, min. no. of bars, bar
widths,direction,fixed threshold value>
4
2 to 16
MS-3 Laser Scanner User Manual
Symbologies
Bar Width Status (Pharmacode)
Serial Cmd:
Default:
Options:
<K477,status,fixed bar count status,fixed bar count, min. no. of bars,
bar widths,direction,fixed threshold value>
Mixed
0 = Mixed
1 = Narrow
2 = Wide
3 = Fixed Threshold Value
Direction (Pharmacode)
Definition:
Serial Cmd:
Default:
Options:
Specifies the direction that a bar can be read.
<K477,status,fixed bar count status,fixed bar count,min. no. of bars,
bar widths,direction,fixed threshold value>
Forward
0 = Forward
1 = Reverse
Fixed Threshold Value (Pharmacode)
Definition:
Serial Cmd:
Default:
Options:
Used when Bar Width Status field is set to Fixed Threshold Value.
<K477,status,fixed bar count status,fixed bar count,min. no. of bars,
bar widths,direction,fixed threshold value>
400
1 to 65535
MS-3 Laser Scanner User Manual
5-21
Narrow Margins
Narrow Margins
Usage:
Used when the leading and trailing edges of the symbols are smaller than
the standard margin or when other objects encroach into the margins.
Definition:
Allows the scanner to read symbols with quiet zones less than 8 times the
width of the narrow bar element. “Quiet zone” is the space at the leading
and trailing ends of a symbol. Each quiet zone can be as narrow as only
five times the width of the narrow bar element when Narrow Margins is
enabled.
Serial Cmd:
<K450,narrow margins status,symbology id status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Note: Do not use Narrow Margins with Large Intercharacter Gap enabled in Code 39 or
Codabar.
5-22
MS-3 Laser Scanner User Manual
Symbologies
Symbology ID
Usage:
Used when the symbology type and how it’s decoded needs to be known.
Definition:
Symbology ID is an AIM standard prefix set of characters that identify the
symbol type.
When enabled, the scanner analyzes and identifies the symbology and
adds a three character identifying prefix to the data:
1. ] (close bracket character) indicating the presence of a symbology ID
2. A, C, E, F, G, I, L, p, M
A = Code 39; C = Code 128 or EAN-128; E = UPC/EAN; F = Codabar;
G = Code 93; I = Interleaved 2 of 5; L = PDF417 (special option); p =
Pharmacode; M = MSI Code
3. Modifier (see the explanation of modifiers below)
Serial Cmd:
<K450,narrow margins,symbology identifier status>
Serial Cmd:
<K450,0,symbology identifier status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Explanation of Modifiers for Code 39, Codabar, and I–2/5
• For Code 39, Codabar, and Interleaved 2 of 5, the modifier indicates Check Digit and
Check Digit Output Status.
• For Code 39 only, Full ASCII needs to be enabled to see modifiers 4, 5, and 7.
Modifier
Check Digit
0
1
3
4
5
7
Disabled
Enabled
Enabled
Disabled
Enabled
Enabled
Check Digit
Output
N/A
Enabled
Disabled
N/A
Enabled
Disabled
Full ASCII conversion performed
(Code 39 only)
No
No
No
Yes
Yes
Yes
Example: ]A5 indicates a Code 39 symbol with Check Digit and Check Digit Output Status
enabled and Full ASCII conversion performed.
For Other Symbologies
• For Code 128, a 1 indicates EAN-128; otherwise the modifier is a 0.
• For all other codes, the modifier is 0.
MS-3 Laser Scanner User Manual
5-23
Background Color
Background Color
Usage:
Definition:
Serial Cmd:
Default:
Options:
If the background is darker than the symbol, then enable black background.
Typically the background is white; but on PCBs for example, they can be
black.
Allows the user to choose which symbol background (spaces and surrounding medium) the scanner can read.
<K451,background color>
White
0 = White
1 = Black
Autodiscriminate
Although Autodiscriminate is not a configuration command, but it is included here as a
convenient tool for enabling most symbol types.
Usage:
Commonly used for quick setup mode to detect symbol type. This is particularly useful for users who might be unfamiliar with their application’s symbology.
Note: It does not alter individual fields such as Start/Stop, Fixed Length,
etc. These need to be setup individually.
Definition:
Enables all available symbology types except PDF417, UCC/EAN 128. The
user may also individually disable/enable each symbology type.
Serial Cmd:
<P>
Default:
Code 39 (only)
Options:
<P> Enables all codes except noted above.
<Q> Enable Code 39 only
<R> Enable Codabar only
<S> Enable I 2/5 only
Note: If using an I 2/5 symbol, verify that the number of characters in the symbol being
scanned matches the symbol length enabled for the I 2/5 symbol type (default is 10 and 6).
5-24
MS-3 Laser Scanner User Manual
Symbologies
Symbol Ratio Mode
Symbol Ratio Mode is useful for determining how much quality and data security validation
will be applied when decoding a Code 39, Codabar, Interleaved 2 of 5, or Code 93 symbol.
• Tight ratios will only decode a high-quality symbol.
• Standard ratios will decode most symbols.
• Aggressive ratios will not validate the entire symbol before decoding. The ratios are
“loosened” to read poor-quality symbols. This setting is not recommended unless users
understand the potential ramifications: character substitution rate may increase dramatically
when Symbol Ratio Mode is set to Aggressive.
Code 39
Serial Cmd:
Default:
Options:
<K452,Code 39,Codabar,Interleaved 2 of 5,Code 93>
Standard
0 = Tight
1 = Standard
2 = Aggressive
Tight
Maximum ratio is set to 3.5:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security. A Validate Bars
function minimizes the acceptance of skewed symbols.
Standard
Maximum ratio is set to 4.0:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security.
Aggressive
Maximum ratio is set at 5.6:1. A Validate function is not used in this mode. This method
may be useful on long symbols where the spot velocity can change throughout the symbol
and effect the minimum and maximum bar values.
MS-3 Laser Scanner User Manual
5-25
Symbol Ratio Mode
Codabar
Serial Cmd:
Default:
Options:
<K452,Code 39,Codabar,Interleaved 2 of 5,Code 93>
Standard
0 = Tight
1 = Standard
2 = Aggressive
Tight
Maximum ratio is set to 3.5:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security. A Validate Bars
function minimizes the acceptance of skewed symbols.
Standard
Maximum ratio is set to 4.0:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security.
Aggressive
Maximum ratio is set at 5.9:1. A Validate function is not used in this mode. This method
may be useful on long symbols where the spot velocity can change throughout the symbol
and effect the minimum and maximum bar values.
Interleaved 2 of 5
Serial Cmd:
Default:
Options:
<K452,Code 39,Codabar,Interleaved 2 of 5,Code 93>
Standard
0 = Tight
1 = Standard
2 = Aggressive
Tight
Maximum ratio is set to 3.5:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security. A Validate Bars
function minimizes the acceptance of skewed symbols.
Standard
Maximum ratio is set to 4.0:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security.
Aggressive
Maximum ratio is set at 6.2:1. A Validate function is not used in this mode. This method
may be useful on long symbols where the spot velocity can change throughout the symbol
and effect the minimum and maximum bar values.
5-26
MS-3 Laser Scanner User Manual
Symbologies
Code 93
Serial Cmd:
Default:
Options:
<K452,Code 39,Codabar,Interleaved 2 of 5,Code 93>
Standard
0 = Tight
1 = Standard
2 = Aggressive
Tight
Maximum ratio is set to 2.95:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security. A Validate Bars
function minimizes the acceptance of skewed symbols.
Standard
Maximum ratio is set to 2.8:1. A Validate function, which compares the ratio between the
maximum and minimum bars in the symbol, is used for additional security.
Aggressive
Maximum ratio is set at 2.65:1. A Validate function is not used in this mode. This method
may be useful on long symbols where the spot velocity can change throughout the symbol
and effect the minimum and maximum bar values.
MS-3 Laser Scanner User Manual
5-27
Symbol Ratio Mode
5-28
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MS-3 Laser E.book Page 1 Monday, August 30, 2004 11:09 AM
Chapter
I/O Parameters
6
Chapter Contents
Output Conditions by ESP Menu.................................................................6-2
I/O Parameters by Serial Command............................................................6-3
Symbol Data Output ....................................................................................6-4
Message Output ..........................................................................................6-7
Noread Message .........................................................................................6-8
Bad Symbol Message .................................................................................6-9
No Symbol Message .................................................................................6-10
Beeper .......................................................................................................6-11
Partial Output ............................................................................................6-12
Serial Verification ......................................................................................6-13
EZ Button ...................................................................................................6-15
Output 1.....................................................................................................6-18
Output 2.....................................................................................................6-24
Output 3.....................................................................................................6-25
Quality Output ...........................................................................................6-26
This section includes instructions for setting up conditions for beeper and EZ Button
controls and for changing input/output of data messages and electrical transitions for
control of internal and external devices.
Note: The characters NULL <> and , can only be entered through embedded menus,
not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
MS-3 Laser Scanner User Manual
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Output Conditions by ESP Menu
Output Conditions by ESP Menu
Click this Button to bring up
the I/O Parameters menu
To change a setting,
double-click the setting and use your cursor to scroll through
the options.
To open nested options,
single-click the +.
6-2
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MS-3 Laser E.book Page 3 Monday, August 30, 2004 11:09 AM
Chapter 6 I/O Parameters
I/O Parameters by Serial Command
Command Title
Symbol Data Output
Noread Message
Bad Symbol Message
No Symbol Message
Beeper
Partial Output
Serial Verification
EZ Button
Output 1 Parameters
Trend Analysis (Output 1)
Diagnostics (Output 1)
Output 2 Parameters
Trend Analysis (Output 2)
Diagnostics (Output 2)
Output 3 Parameters
Trend Analysis (Output 3)
Diagnostics (Output 3)
Quality Output
Format
<K705,symbol output status,when to output>
<K714,status,noread message>
<K715, bad symbol status,bad symbol message>
<K716, no symbol status,no symbol message>
<K702,beeper output>
<K703, partial output status,start postion,length>
<K701,serial command echo status,serial command beep status,control/hex output>
<K770, global status,default on power-on>
<K810,output on,polarity,pulse width,output mode>
<K780, trend analysis mode,number of triggers,number to output on,decodes/trigger threshold>
<K790,usused,service threshold,unused,laser current
high,laser current low>
<K811,output on,polarity,pulse width>
<K781, trend analysis mode,number of triggers,number to output on,decodes/trigger threshold>
<K791,usused,service threshold,unused,laser current
high,laser current low>
<K812,output on,polarity,pulse width>
<K782, trend analysis mode,number of triggers,number to output on,decodes/trigger threshold>
<K792,usused,service threshold,unused,laser current
high,laser current low>
<K704,quality output separator,reads/trigger status>
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Symbol Data Output
Symbol Data Output
Usage:
Useful when the host needs symbol data only under certain conditions.
Definition:
Defines the conditions under which decoded symbols are transmitted to
the host.
Symbol Data Output Status
Serial Cmd:
<K705,symbol output status,when to output>
Default:
Good Read
Options:
0 = Disabled
1 = Match
2 = Mismatch
3 = Good Read
Note: If set to Match or Mismatch, Symbol Output Status will not take effect unless
Matchcode Type is enabled and a master symbol is loaded into memory.
Disabled
Usage:
Useful when an application only needs to use the discrete outputs and
can allow the scanner to do the decision-making. When Disabled, the
host does not need the symbol data and the communication lines are
used only for setup and status checks.
Definition:
When set to Disabled, the scanner will not transmit any data that is generated during a read cycle (symbols, noreads, etc.).
Match
Usage:
Match is used in an application that requires specific symbol information
and needs to sort, route or verify based on matching the specific symbol
data.
Definition:
When set to Match, the scanner transmits symbol data whenever a symbol matches a master symbol. However, if Matchcode Type is Disabled,
it transmits on any good read.
Note: A noread can still be transmitted if Enabled.
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Chapter 6 I/O Parameters
Mismatch
Usage:
Mismatch is typically used as a flag within the host system to prevent an
item from being routed in the wrong container.
Definition:
With Mismatch enabled, the scanner transmits symbol data whenever
the symbol data information does NOT match the master symbol.
Note: A noread can still be transmitted if enabled.
Good Read
Usage:
Good Read is used when an application requires all symbol data to be
transmitted. It’s typically used in tracking applications in which each
object is uniquely identified.
Definition:
With Good Read enabled, the scanner transmits symbol data on any
good read regardless of Matchcode Type setting.
Note: A noread can still be transmitted if enabled.
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Symbol Data Output
When to Output Symbol Data
Definition:
This command allows the user to choose when symbol data can be sent
to the host.
Serial Cmd:
<K705,symbol output status,when to output>
Default:
As Soon As Possible
Options:
0 = As Soon As Possible
1 = End of Read Cycle
As Soon As Possible
Usage:
As Soon As Possible is useful in applications in which symbol data
needs to be moved quickly to the host, typically when the host is making
decisions based on symbol data.
Definition:
Enabling As Soon As Possible causes symbol data to be sent to the host
immediately after a symbol has been successfully decoded.
Note: More than one decode might in fact be required to qualify as a
good decode, depending on how Decodes Before Output is set.
End of Read Cycle
Note: See “End of Read Cycle Mode” on page 4-14 for options to end the read
cycle.
Usage:
End of Read Cycle is useful in timing-based systems in which the host is
not ready to accept data at the time it is decoded.
Definition:
Enabling End of Read Cycle means that symbol data does not get sent
to the host until the read cycle ends with a timeout or new trigger.
End of read cycle
Start of read cycle
Read cycle Timeout
Host
activates trigger
This is when host
expects output
Figure 6-6 Read Cycle
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Chapter 6 I/O Parameters
Message Output
The following flow chart explains the logic paths taken for Noread, Bad Symbol and
No Symbol outputs.
Start of
Read Cycle
Scans until end
of read cycle
Does the
scanner decode the
symbol?
Notes:
When Symbol Detect is enabled, the scanner will test for a
minimum number of bar and space transitions as set in
Transition Counter Threshold. If that minimum threshold is met, a Bad Symbol message is sent; otherwise a No
Symbol message is sent.
If conditions for a Bad Symbol, No Symbol, or No Object
messages are met but the corresponding output is not
enabled, a Noread message will be output.
Yes
No
Is Symbol
Detect enabled?
No
Noread
message sent
(if enabled)
Yes
Bad Symbol
message sent
(if enabled)
Yes
Is
Transition
Counter Threshold
met?
No
No Symbol
message sent
(if enabled)
End of
read cycle
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Noread Message
Noread Message
Usage:
Used in applications where the host needs serial verification that a symbol has not been read and especially useful in new print verification.
Definition:
When enabled, and if no symbol has been decoded before timeout or the
end of the read cycle, the noread message will be transmitted to the
host.
Noread Status
Serial Cmd:
<K714,status,noread message>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
Noread Message
Definition:
Any combination of ASCII characters can be defined as the noread
message.
Serial Cmd:
<K714,status,message>
Default:
NOREAD
Options:
1 to 7 ASCII characters.
Note: Noread Message will only be transmitted if Symbol Output (“Symbol Data
Output Status” on page 6-4) is set to Match, Mismatch or Good Read.
Noread Message can be set to any ASCII characters except NULL <> and , (comma).
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Chapter 6 I/O Parameters
Bad Symbol Message
Note: Bad Symbol Message does not apply to multisymbol operations.
Usage:
Useful in verifying the presence of a symbol that has not been decoded.
Definition:
When enabled, a message is sent to the host when a symbol is detected
but not decoded. See “Transition Counter Threshold” on page 6-8.
The Bad Symbol output is tied to the transition counter. If during a read
cycle no symbol is decoded and the required setting for the Transition
Sample Threshold is met, a user defined message will be sent to the
host. See “Output Message Flow” on page 9-8.
Bad Symbol Status
Serial Cmd:
<K715,bad symbol status,bad symbol message>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Bad Symbol Message
Serial Cmd:
<K715,bad symbol status,bad symbol message>
Default:
BADCODE
Options:
Up to 10 ASCII characters (except NUL)
The Bad Symbol output is tied to the transition counter. If during a read
cycle no symbol is decoded and the required setting for the Transition
Sample Threshold is met, a user defined message will be sent to the
host.
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No Symbol Message
No Symbol Message
Note: No Symbol Message does not apply to multisymbol operations.
Usage:
Useful in determining if an object has an attached symbol.
Definition:
When enabled, sends a message to the host whenever an object is
detected but no symbol is detected.
The No Symbol output is tied to the transition counter. If during a read
cycle no symbol is decoded and the required setting for the Transition
Sample Threshold is NOT met, a user defined message will be sent to
the host. See “Transition Counter” on page 4-20.
No Symbol Status
Serial Cmd:
<K716,no symbol status,no symbol message>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
No Symbol Message
Serial Cmd:
<K716,no symbol status,no symbol message>
Default:
NO_SYMBOL
Options:
Up to 10 ASCII characters (except NUL)
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Chapter 6 I/O Parameters
Beeper
Usage:
Can be used as an audible verification that either a good read or a noread
has occurred.
Definition:
A beep is emitted either after each good read of a symbol or after each
noread, according to the Beeper Output Condition selection.
Note: Beeper will also sound if any of the following occur:
• the scanner is defaulted a send/save command from ESP or an Exit
command from any embedded menu.
• a <Z>, <Zp>, <Zd>, or <K,1> command is sent
Beeper Output Condition
Serial Cmd:
<K702,beeper output>
Default:
On Good Read
Options:
0 = Disabled
1 = On Good Read
2 = On Noread
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Partial Output
Partial Output
Definition:
When enabled, allows you to pre-select portions of symbols to be transmitted by the scanner.
Usage:
In Multisymbol mode, partial output is performed on each separate
symbol. For example, if Start Position is set to 3 and Partial Length is
set to 5, the following symbols are transmitted as follows:
1234567890 as 34567
1234 as 34
123456789,abcde as “34567,cde” (two symbols with separator)
12 as [blank]
Status
Serial Cmd:
<K703,partial output status,start position,length>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Start Position (Partial Output)
Definition:
Allows you to determine the first character from the beginning of a symbol to transmit.
Serial Cmd:
<K703,partial output status,start position,length>
Default:
1
Options:
1 to 64
Length (Partial Output)
Definition:
Allows you to determine the number of characters to be transmitted.
Serial Cmd:
<K703,partial output status,start position,length>
Default:
63
Options:
1 to 64
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Chapter 6 I/O Parameters
Serial Verification
Usage:
These commands are useful in removing any doubt about the scanner’s
acceptance and response to host configuration commands.
For example, if the current preamble is “SOM” and <Kd1, START> is
entered, the scanner will echo back <Kd1, SOM> since the attempted
entry “START” exceeds the four character limit for that command. Therefore it is rejected and the existing “SOM” message is echoed back and
remains the preamble message.
Definition:
Allows the user to verify configuration command status.
Serial Command Echo Status
Important Note: ESP will not function whenever this command is enabled.
Definition:
When enabled, a configuration command
received from the host is echoed back to
the host with the resultant settings.
Host
Scanner
Function:
If a command with multiple fields is processed, some of the fields may
have been processed properly while others were not. The changes will
appear in the string echoed back so that the user will know which fields
did or did not change.
Serial Cmd:
<K701,serial command echo status,serial command beep status,control/hex output>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
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Serial Verification
Serial Command Beep Status
Important Note: ESP will not function whenever this command is enabled.
Usage:
Used to audibly verify the acceptance and validity of a command.
Definition:
Causes the scanner to beep once whenever a K command is entered to
indicate that the command was accepted and processed.
Function:
If an invalid command is entered, the scanner beeps 5 times to indicate
an invalid entry. However, this does not necessarily mean that all data
fields have been entered incorrectly. Only one bad field needs to be found
in order to activate the 5 beep response.
Serial Cmd:
<K701,serial command echo status,serial command beep status,control/hex output>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Control/Hex Output
Usage:
Useful for viewing settings with binary characters when using serial command on a terminal.
Definition:
Determines the response to a Serial Command Echo or status request
command.
When set to Control, two characters are transmitted to represent a nondisplayable character. For example, a carriage return will be shown as the
two characters: ^M.
When set to Hex, the output is the hex character.
Serial Cmd:
<K701,serial command echo status,serial command beep status,control/hex output>
Default:
Control
Options:
0 = Control
6-14
1 = Hex
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Chapter 6 I/O Parameters
EZ Button
The EZ Button provides a convenient way to perform programmable operations both
globally and for each of the three programmable button positions.
The EZ Button has three positions, each of which can be user-programmed to perform
a variety of functions.
Global Status
Definition:
Determines the basic function of the EZ Button.
Serial Cmd:
<K770,global status,default on power-on>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
3 = Unlatch Output
2 = Trigger
Disabled: When selected, the EZ Button is disabled.
Enabled: When the EZ Button is enabled, the function of each button position can be
determined by the EZ Button Mode command.
Trigger: When selected, the EZ Button will act as a trigger for the scanner. All other
button operations will not be active. The trigger will operate the same way as an external trigger.
Trigger mode
External Level
External Edge
Operation
The read cycle endures for as long as the EZ Button is pressed,
unless a timeout occurs and Timeout is enabled for End Of
Read Cycle.
As with Level, Edge allows a read cycle to be initiated by pressing the EZ Button, but unlike Level mode, the read cycle ends
with a good read output, a timeout, or a new trigger.
Unlatch Output. When selected, will unlatch any outputs that have been latched via
“Latch Mode 1 (Unlatch on New Master Change)” on page 6-20.
Default on Power-on
Definition:
When enabled, if the EZ Button is held down during power-on, the scanner will default to customer defaults and save for power-on. This is the
same as sending a <Zrc> command.
Serial Cmd:
<K770,global status,default on power-on>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
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EZ Button
EZ Button Modes
Definition:
Provides six user-selectable functions for each of the three EZ Button positions.
Serial Cmd:
<K771,position 1 mode,position 2 mode,position 3 mode>
Defaults:
As indicated in the table below.
Options:
As indicated in the table below.
The positions are selected by the length of time the button is held. When you want to
select position one, you press and holds the button until one beep is emitted from the
scanner and the 20% LED is turned on. You then release the button to select position one.
If you want to select position two, you continue to hold until you hear two short beeps and
the 40% LED is turned on. Finally, to select position three, you continue to hold the button
until you hear three short beeps and the 60% LED is turned on.
For example, if you want to select the function for position three, you will hear one short
beep, then two short beeps, and finally three short beeps and the 20%, 40%, and 60%
LEDs turn on in progression.
The following table lists the options for the three positions with the default position in bold text:
EZ Button Options
Single Beep
0 = Disabled
1 = Read Rate
2 = Autocalibration
3 = Save for Power-on
4 = Auto Framing
5 = Load New Master
6 = Sleep Mode
Two Beeps
0 = Disabled
1 = Read Rate
2 = Autocalibration
3 = Save for Power-on
4 = Auto Framing
5 = Load New Master
6 = Sleep Mode
Three Beeps
0 = Disabled
1 = Read Rate
2 = Autocalibration
3 = Save for Power-On
4 = Auto Framing
5 = Load New Master
6 = Sleep Mode
Disabled: When set to Disabled, the button position will have no function associated with
it. The scanner will still respond when the button position is reached.
Read Rate: Read rate will perform decodes/second and is the same as sending a <C>
from the terminal. To exit read rate mode, press the EZ Button once quickly.
Calibration: The calibration routine will be initiated. To abort calibration, press the EZ Button
once quickly.
Save for Power-on: When when this button position is selected, all scanner settings will
be saved to non-volatile memory to be recalled when scanner is powered-on the next
time. This is the same as sending the <Z> in the terminal.
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Chapter 6 I/O Parameters
Auto Frame: Auto Framing will be initiated when this button position is selected. To
abort auto-framing, press the EZ Button once quickly. Auto framing is a background
routine that automatically adjusts the scan width to the length of a symbol. This procedure can also be accessed in a terminal view by the <@> command.
Load New Master: This allows the button to function the same as the New Master Pin
command. The new master pin’s consecutive decode requirement holds true for this button position when this mode is selected. (See“New Master Pin” on page 7-9.)
Sleep Mode: If sleep mode is enabled, the EZ Button will shut off the mirror motor
and laser. To exit sleep mode, press the EZ Button once quickly.
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Output 1
Output 1
Usage:
This option provides switching to host software to control external
devices such as PLCs and relays. It is useful for routing and sorting and to
prevent mis-packaging and mis-routing.
Definition:
Sets the discrete output functions for specific user-selected conditions.
Output On
Definition:
Allows the user to set the conditions under which an output (or outputs) will be activated.
Serial Cmd:
<K810,output on,polarity,pulse width,output mode>
Default:
Mismatch or Noread
Options:
0
1
2
3
=
=
=
=
Mismatch or Noread
Match
Mismatch
Noread
4 = Trend Analysis
5 = Validation
6 = Diagnostic Warning
Note: If Output On is set to Mismatch or Noread, Match, or Mismatch, a transition
(switching) will not occur unless Matchcode Type is enabled and a master symbol is
loaded into memory.
Mismatch or Noread
Activates discrete output when the symbol data does not match that of the master symbol or the symbol has not been decoded before the end of the read cycle.
Match
Activates a discrete output when the symbol data matches the master symbol.
Note: If you want to output for a good read and Matchcode is not enabled, you can
enable any output for Match.
Mismatch
Activates a discrete output whenever the symbol data does not match that of the master symbol.
Noread
Activates a discrete output whenever the symbol data is not decoded before the end of
the read cycle.
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Chapter 6 I/O Parameters
Trend Analysis
Tracks the occurrences and frequency of mismatches, noreads, and the number of
reads per trigger and output the results to any of three outputs.
Validation
(Not yet implemented)
Diagnostic Warning
The output remains active as long as one of the diagnostic conditions is met.
Polarity
Definition:
Sets the polarity of the discrete output.
When set to Negative polarity, and an output condition from the scanner
is met, the output-1 pin on the scanner’s 15 pin connector go low for the
time specified in Pulse Width. (See Table A-3, “MS-3 Laser Connector, 15-pin Socket,” on page A-4.)
Serial Cmd:
<K810,output on,polarity,pulse width,output mode>
Default:
Negative
Options:
0 = Negative
1 = Positive
Pulse Width
Definition:
Sets the time in 1 mS increments that the discrete output remains active.
Serial Cmd:
<K810,output on,polarity,pulse width,output mode>
Default:
50 (50 mS)
Options:
0 to 65535 (0 to 65.535 seconds). Divide the number entered on the
command line by 1000 for time in seconds.
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Output 1
Output Mode
Definition:
Sets the condition in which the discrete output is de-activated.
Serial Cmd:
<K810,output on,polarity,pulse width,output mode>
Default:
Pulse
Options:
0 = Pulse
1 = Latch Mode 1
2 = Latch Mode 2
3 = Latch Mode 3
Pulse
Definition:
This is the default mode of operation in which the programmable output
is activated when the Output On condition has been met and held active
for the duration of the selected pulse width.
Latch Mode 1 (Unlatch on New Master Change)
Definition:
The programmable output will be activated when the Output On condition is met and will stay active until the state of the new master pin
changes from inactive to active or the configuration button is depressed
in the appropriate mode.
Important Note: To unlatch using the new master pin the new master pin
status must be set to disabled. To unlatch using the button the button
status must be set to unlatch mode.
Latch Mode 2 (Unlatch Opposite Condition)
Definition:
The programmable output is activated when the Output On condition
has been met and held active until the opposite condition selected under
Output On has been met.
For example, if Noread is enabled under Output On, the programmable
output will go active upon a noread and remain active until the opposite
condition, a good read, occurs.
Latch Mode 3 (Unlatch Enter Read Cycle)
Definition:
The programmable output is active when the Output On condition has
been met and is held active until a new read cycle begins.
NOTE: All of the Output On modes are inhibited when any Output on Warning is
active for Output 1 (see <K713> command).
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Chapter 6 I/O Parameters
Trend Analysis (Output 1)
Usage:
Useful in cases in which the user doesn’t want to shut down for one condition but wants to monitor quality and read conditions.
Definition:
Applies trend analysis settings to Output 1.
With Trend Analysis, the user can track the occurrences and frequency
of mismatches, noreads, and the number of reads per trigger and output
the results to any of three outputs.
Example:
Trend analysis mode = Noread
Number to Output On = 4
Number of Triggers = 5
In this example, the scanner will activate an output whenever 4 noreads
occur within 5 triggers (read cycles).
Trend Analysis Mode
Definition:
Sets the trend condition (Mismatch, Noread, or Reads/Trigger) that
will activate the output.
Serial Cmd:
<K780,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Default:
Noread
Options:
0 = Mismatch
1 = Noread
2 = Decodes per Trigger
Mismatch
Definition:
Output will be activated when the number of Mismatches equals the
value entered for Number to Output On within the trigger window
selected in Trigger Evaluation Period.
Noread
Definition:
The output will be activated when the number of noreads equals the
value entered for Number to Output On within the trigger window
selected in Trigger Evaluation Period.
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Output 1
Number of Triggers (Trend Analysis)
Definition:
The number of triggers to examine for the trend analysis condition.
Serial Cmd:
<K780,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Default:
0
Options:
0 to 255
Number to Output On (Trend Analysis)
Definition:
Sets the number of Trend Analysis events (mismatches, noreads or
reads/trigger as configured by Trend Analysis Mode) to occur within
the Number of Triggers before activating the associated output.
Usage:
For example, if Number to Output On is set to 3 and Trend Analysis
Mode is set to Noread, then the output will not be activated until 3
noreads have occurred.
Serial Cmd:
<K780,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Default:
0
Options:
0 to 255
Decodes per Trigger (Trend Analysis)
Note: This setting only applies when Trend Analysis Mode is set to Decodes per
Trigger.
Definition:
Sets the threshold for decodes required per trigger (read cycle) that
must occur before an output can be activated.
Example:
Trend analysis mode = Decodes per Trigger
Number to Output On = 4
Number of Triggers = 25
Decodes per Trigger Threshold = 10
In this example, the scanner will activate an output whenever the number of decodes falls below the decodes per trigger threshold (10) for 4
trigger (read cycle) events.
Serial Cmd:
<K780,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Default:
0
Options:
0 to 65535
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Chapter 6 I/O Parameters
Diagnostics (output 1)
Applies warning to Output 1.
Note: When Diagnostics is enabled (“Output On” on page 6-18), the output mode
configuration has no effect. The output will remain active as long as one of the diagnostic conditions is met. The output will go inactive as soon as it detects no active diagnostic warning.
Usage:
Alerts user to critical conditions.
Definition:
Sets up the destinations and specific warnings that will cause activation.
(See Chapter 8, “Diagnostics” for more information.)
Service Threshold
Definition:
Activates the output whenever the service threshold has been met. Will
output upon every occurrence of the threshold.
Serial Cmd:
<K790,usused,service threshold,unused,laser current high,laser current low>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Laser Current High
Definition:
Activates the output whenever the high current threshold has been met.
Will output once.
Serial Cmd:
<K790,usused,service threshold,unused,laser current high,laser current low>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Laser Current Low
Definition:
Activates the output whenever the high current threshold has been met.
Will output once.
Serial Cmd:
<K790,usused,service threshold,unused,laser current high,laser current low>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
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Output 2
Output 2
Serial Cmd:
<K811,output on,polarity,pulse width,output mode>
Output 2 has the same parameters and default settings as Output 1.
Trend Analysis (output 2)
Definition:
Applies trend analysis settings to Output 2.
Serial Cmd:
<K781,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Trend Analysis to Output 2 has the same parameters and default settings as Trend
Analysis to Output 1.
Diagnostic Warnings (output 2)
Definition:
Applies warning to Output 2.
Serial Cmd:
<K791,usused,service threshold,unused,laser current high,laser current low>
Diagnostic Warnings to Output 2 has the same parameters and default settings as
Diagnostic Warnings to Output 1.
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Chapter 6 I/O Parameters
Output 3
Serial Cmd:
<K812,output on,polarity,pulse width,output mode>
Output 3 has the same parameters and default settings as Output 1.
Trend Analysis (output 3)
Definition:
Applies trend analysis settings to Output 3.
Serial Cmd:
<K782,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
Trend Analysis to Output 3 has the same parameters and default settings as Trend
Analysis to Output 1.
Diagnostic Warnings (output 3)
Definition:
Applies warning to Output 3.
Serial Cmd:
<K792,usused,service threshold,unused,laser current high,laser current
low>
Diagnostic Warnings to Output 3 has the same parameters and default settings as
Diagnostic Warnings to Output 1.
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Quality Output
Quality Output
Usage:
Host system can monitor scanning performance (printing process, scanning environment changes, etc.) by setting thresholds in their processing
or displaying the outputs for visual verification.
Definition:
Allows the host to track the number of good reads per trigger by appending a five digit numeric field to the end of symbol data.
When enabled, symbol data is followed by a separator, followed by the
five digits in the form of 00000. For example, a certain symbol that has
been averaging 00100 reads per read cycle suddenly drops to 00012, this
would be a good indication that a problem has arisen even though good
reads are still occurring.
Quality Output Separator
Serial Cmd:
<K704,quality output separator,reads/trigger status,decode direction
status>
Default:
, (comma)
Options:
any ASCII character
Note: For all serial configuration commands, the following characters cannot be
used:, < > NUL
Reads/Trigger Status
Serial Cmd:
<K704,quality output separator,reads/trigger status,decode direction
status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Decode Direction Output
Definition:
If enabled the decode direction is appended to the barcode output with a
quality output separator as an “F” (forward) or an “R” (reverse).
Serial Cmd:
<K704,quality output separator,reads/trigger status,decode direction
status>
Default:
Disabled
Options:
0 = Disabled
6-26
1 = Enabled
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Chapter
Matchcode
7
Chapter Contents
Matchcode by ESP ......................................................................................7-2
Matchcode by Serial Command ..................................................................7-2
Overview of Matchcode ...............................................................................7-3
Using Master Symbols.................................................................................7-3
Matchcode Type ..........................................................................................7-4
New Master Pin ...........................................................................................7-9
Master Symbol Database ..........................................................................7-10
This section explains the matchcode output functions and the master symbol database
setup.
Note: When assigning characters in user-defined fields, the characters NULL <> and ,
can only be entered through embedded menus, not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
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Matchcode by ESP
Matchcode by ESP
Click this button to bring
up the Matchcode
menu.
To change a setting,
double-click the setting and use your cursor to scroll through
the options.
Matchcode by Serial Command
Command Title
Matchcode Type
New Master Pin
Master Symbol Database Size
Matchcode Enable
Enter data to database
Request Master Symbol Information
Request all Master Symbol Information
Delete Master Symbol
Store Next Symbol as Master Symbol
7-2
Format
<K223,matchcode type,sequential matching,match start
position,match length,wild card character,
sequence on noread,sequence on mismatch>
<K225,status>
<K224,number of master symbols>
<K223,status>
<K231,master symbol number,master symbol data>
<K231?,master symbol number>
<K231,?>
<K231, master symbol number,>
<G master symbol number>
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Chapter 7 Matchcode
Overview of Matchcode
Usage:
Matchcode is used in applications to sort, route, or verify data based on
matching the specific symbol in a variety of ways as defined in this section. For example, a manufacturer might sort a product based on dates
that are embedded in the symbol.
Definition:
With Matchcode you can store master symbol data in the scanner’s
memory, compare this data against the scanned symbols, and define how
symbol data and/or discrete signal output will be directed. A master symbol database can be set up for up to 10 master symbols. See “Master
Database” on page 11-8.
Using Master Symbols
1. Set Triggering Mode to External or Serial (see “Trigger Mode” on page 46).
2. Chose the method of symbol comparison that fits your application (see “Matchcode Type” on page 7-4).
3. Define the output you want with your matchcode setup:
a) Symbol output (“Symbol Data Output Status” on page 6-4).
b) Discrete output (see Chapter 6, “I/O Parameters”).
4. Select the number of master symbols you want to create, if more than one (see
“Master Symbol Database Size” on page 11-8).
5. Enter master symbol data in one of the following ways:
a) Use ESP to type in master symbol data directly into the Utilities menu.
b) Send a serial command with symbol data in the form of <M master symbol#,data> (or <) data)> for single master symbol only).
c) Send a <Gmaster symbol number> command to scan next symbol in as the
master symbol.
d) Enable the New Master Pin command and activate a discrete input to store
the next symbol scanned as the master symbol (see “New Master Pin” on
page 7-9). Other Master Symbol Serial Commands
See also “Master Symbol Database Size” on page 11-8 for more information
details on entering, requesting, and deleting master symbols.
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Matchcode Type
Matchcode Type
Note: When Matchcode is set to Enabled, Wild Card or Sequential, Number of
Symbols will default back to 1 (if set to any number greater than 1).
Definition:
Allows the user to choose the way that master symbols will be compared
with subsequently scanned symbols.
Note: First set Triggering Mode to External or Serial.
Serial Cmd:
<K223,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on mismatch>
Default:
Disabled
Options:
0 = Disabled
2 = Wild Card
Disabled:
Has no effect on operations.
Enabled:
Instructs the scanner to compare symbols or portions of symbols with the
master symbol.
Sequential
Matching:
Instructs the scanner to sequence after each match (numeric only) and
compare symbols or portions of symbols for sequential numbers.
1 = Enabled
3 = Sequential
Note: If Matchcode Type is set to Sequential, Number of Symbols
will default back to 1 (if set to any number greater than 1).
Wild Card:
Allows the user to enter user defined wild card characters in the master
symbol.
Sequential Matching
Usage:
Useful in tracking product serial numbers that increment or decrement
sequentially.
Definition:
With Sequential enabled, Sequential Matching determines if a count is
in ascending (incremental) or descending (decremental) order.
Serial Cmd:
<K223, matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on mismatch>
Default:
Increment
Options:
0 = Increment
7-4
1 = Decrement
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Chapter 7 Matchcode
Match Start Position
Usage:
Match Start Position is useful in defining specific portions of a symbol
for comparisons. For example, if a symbol contains a part number, manufacturing date, and lot code info but the user is only interested in the part
number information, Match Start Position can be set to only sort on the
part number and ignore the rest of the characters.
Definition:
Match Start Position determines the portions of symbols that will be
matched by defining the first character in the symbol (from left to right)
that will be compared with those of the master symbol, when Matchcode
Type is set to Enabled or Sequential.
Function:
For example, if Match Start Position is set to 3, the first 2 characters
read in the symbol will be ignored and only the 3rd and subsequent characters to the right will be compared, up to the number of characters
specified by Match Length.
Serial Cmd:
<K223,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on mismatch>
Default:
0
Options:
0 to 64
Note: Match Start Position must be set to 1 or greater to enable this feature. A 0
setting will disable this feature.
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Matchcode Type
Match Length
Usage:
For example, if Match Length is set to 6 in a 10 character symbol, and
Match Start Position is set for 2, only the 2nd through 7th characters
(from left to right) will be compared.
Definition:
Defines the length of the character string that will be compared with that
of the master symbol when Match Start Position is set to 1 or greater.
When Match Start Position is set to 0, no comparison will occur.
Serial Cmd:
<K223,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on mismatch>
Default:
1
Options:
1 to 64
When more than one master symbol is enabled, the maximum number for each additional symbol diminishes as shown here:
# of Symbols:
Maximum
characters:
1
2
3
4
5
6
7
8
9
10
64
64
42
32
25
21
18
16
14
12
Wild Card Character
Usage:
For example, with Wild Card Character defined as the default asterisk,
defining CR*34 as the master symbol will result in matches for CR134,
CR234, but not CR2345. Entering the wild card at the end of the master
symbol as in CR* will result in matches for variable symbol lengths such
as CR1, CR23, CR358, etc.
Definition:
Wild Card Character allows a user to define a wild card character as
part of the master symbol.
Serial Cmd:
<K223 ,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on
mismatch>
Default:
* (asterisk)
Options:
Any valid ASCII character
7-6
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Chapter 7 Matchcode
Sequence On Noread
Usage:
Sequence On Noread is useful when the scanner needs to stay in
sequence even if no decode occurs.
Definition:
When Sequence On Noread is Enabled and Matchcode is set to
Sequential, the scanner sequences the master symbol on every match
or noread. When disabled, it does not sequence on a noread.
Serial Cmd:
<K223,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on
mismatch>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
As an example of Sequence on Noread Enabled, consider the following series of
decodes:
Master symbol
Decoded symbol
Master symbol after decode
001
002
003
004
005
006
007
001
002
noread
004
noread
noread
007
002
003
004 (sequenced on noread)
005
006 (sequenced on noread)
007 (sequenced on noread)
008
As an example of Sequence on Noread Disabled, consider the following series of
decodes:
Master symbol
Decoded symbol
Master symbol after decode
001
002
003
003
004
004
004
001
002
noread
003
noread
noread
004
002
003
003 (not sequenced)
004
004 (not sequenced)
004 (not sequenced)
005
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Matchcode Type
Sequence On Mismatch
Note: Matchcode must be set to Sequential for this command to function.
Usage:
Enable this parameter if every trigger event should have a decode and
more than one consecutive mismatch may occur.
Disable this parameter if every trigger event should have a decode but no
more than one consecutive mismatch may occur.
Definition:
When set to Enabled, the master symbol sequences on every decode,
match or mismatch.
When set to Disabled, the master symbol will not sequence whenever
consecutive mismatches occur.
Serial Cmd:
<K223,matchcode type,sequential matching,match start position,
match length,wild card character,sequence on noread,sequence on
mismatch>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
The scanner will sequence the master to one more/less than the decoded symbol. As an
example of Sequence On Mismatch Enabled, consider the following decodes:
Master symbol
Decoded symbol
001
002
003
004
005
006
007
001
002
abc
004
def
ghi
007
Master symbol after decode
002
003
004 (sequenced on mismatch)
005
006 (sequenced on mismatch)
007 (sequenced on mismatch)
008
As an example of Sequence On Mismatch Disabled, consider the following decodes:
7-8
Master symbol
Decoded symbol
001
002
003
004
005
006
006
001
002
abc
004
def
ghi
006
Master symbol after decode
002
003
004 (sequenced because of previous match)
005
006 (sequenced because of previous match)
006 (not sequenced because of previous mismatch)
007
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Chapter 7 Matchcode
New Master Pin
Usage:
Some applications require the line worker to change the master symbol.
This can be done by installing a switch at the location of the scanner. It is
very common to have a keyed switch so that accidental switching does
not occur.
Definition:
After New Master Pin is enabled, a pulse can be received on the new
master pin which will cause the scanner to record the next decoded symbol(s) as the new master symbol(s).
It is important to note that the enabling New Master Pin does not in
itself cause a master symbol to be recorded. The master pin must then
be activated momentarily (for a minimum of 10 ms) before a master
symbol can be scanned into memory. (See “Electrical Specifications”
on page A-4.)
Serial Cmd:
<K225,status>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
After New Master Pin has been enabled and the pin activated, decodes will be saved
in the master database beginning with master symbol #1. If the scanner is configured
for a multisymbol read cycle (Number of Symbols is greater than 1), the remaining
decodes will be saved in each consecutive master symbol location. For example, if
Number of Symbols is set to 3 and New Master Pin is then activated, at the end of
the next read cycle, the decoded symbols will be saved as master symbols 1, 2, and 3.
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Master Symbol Database
Master Symbol Database
See “Master Database” on page 11-8 for more detailed information.
Usage:
Useful where more than one master symbol is required, as in a Multisymbol setup, for matching and other matchcode operations.
Definition:
Allows you to define up to 10 master symbols as the master symbol database, which can be entered by keyboard, scanned in, displayed, or
deleted by serial or ESP commands.
Request Master Symbol Data
Definition:
Returns master symbol data for any enabled master symbols from 1 to
10.
For example, to request master symbol #5, enter <K231?,5>. The scanner transmits the following format: <K231,5,data>. If no master symbol
data available, the output will be: <M5/?>.
Serial Cmd:
Send <K231?,master symbol number> to request the current master
symbol for a specific master symbol.
Returns all master symbols if no number is added before the question
mark.
Options:
1 to 10
Request All Master Symbols Data
Definition:
Returns master symbol data for all enabled master symbols from 1 to 10.
Serial Cmd:
Send <K231?> to request all current master symbols.
Delete Master Symbol Data
Definition:
Delete Master Symbol Data allows you to delete an enabled master
symbol.
Serial Cmd:
Send <K231,master symbol number,> to delete the master symbol.
Options:
1 to 10
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Chapter
Diagnostics
88
Chapter Contents
Diagnostics by ESP Menu .......................................................................... 8-2
Diagnostics by Serial Command ................................................................. 8-2
Diagnostic Messages Overview .................................................................. 8-3
Counts......................................................................................................... 8-4
Hours Since Last Reset .............................................................................. 8-6
Laser High................................................................................................... 8-7
Laser Low ................................................................................................... 8-8
Service Message ........................................................................................ 8-9
This section describes warning and operating messages and their settings.
Important: Since Warning Messages and NOVRAM Messages are not enabled by
default, these messages will not be displayed. However, if you suspect that erroneous
defaults are occurring, enable Warning Messages and NOVRAM Messages by sending <K”400,1,,,1>.
Note: When assigning characters in user-defined fields, the characters NULL <> and ,
can only be entered through embedded menus, not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
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Diagnostics by ESP Menu
Diagnostics by ESP Menu
Click this button to bring
up the Diagnostic menu.
To change a setting,
double-click the setting and use your cursor to scroll through
the options.
To open nested options,
single-click the +.
Diagnostics by Serial Command
Command Title
Counts, Power-on/Resets
Hours Since Last Reset
Laser High/Low
Service Message
8-2
Format
<K406, power-on,resets,power-on saves,custom default saves>
<K407?> (read only— returns: hours,minutes)
<K411, laser high status,laser high message,laser low status,laser low message>
<K409,status,service message,threshold,resolution>
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Chapter 8 Diagnostics
Diagnostic Messages Overview
Usage:
These messages serve as a flag to service a scanner or as an early warning that potential problems could arise. They are particularly useful in
factories that run 24/7 and can’t afford down time.
Definition:
Warning messages that relate to the environment and condition of the
scanner can be defined and set to activate specific outputs.
Note: When enabled, the error condition will override all other operational modes configured for the output.
When enabled, laser current and NOVRAM warning messages will be
transmitted to the host or any active port whenever the pre-defined conditions are met.
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Counts
Counts
(These commands are READ ONLY.)
Sending <K406?> returns a four fields of data, as follows:
<K406, power-on,resets,power-on saves,customer default saves>
Power-on Count
Usage:
Useful for detecting unwanted resets caused by power supply problems
or ESD transients.
Definition
Returns the number of times the scanner has been re-powered.
Serial Cmd:
Send <K406?>
Returns < (read only)
Read Only
Ranges:
0 to 65,535 powerups, 0 to 65,535 resets.
Resets
Usage:
Useful for detecting unwanted resets caused by power supply problems
or ESD transients.
Definition
Returns Resets for all the “warm” resets, including <A>, <Ard>, <Arp>
and <Arc>.
Serial Cmd:
Send <K406?>
Returns <K406, power-on,resets,power-on saves,custom default
saves>
Read Only
Ranges:
0 to 65,535 powerups, 0 to 65,535 resets.
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Chapter 8 Diagnostics
Power-on Saves
Usage:
Useful for detecting unwanted resets caused by power supply problems
or ESD transients.
Definition
Returns the number of times the scanner saves for the power-on resets,
including <Z>, <Zc>, <Zrd>.
Serial Cmd:
Send <K406?>
Returns <K406, power-on,resets,power-on saves,custom default
saves>
Read Only
Ranges:
0 to 65,535 powerups, 0 to 65,535 resets.
Customer Default Saves
Usage:
Useful for detecting unwanted resets caused by power supply problems
or ESD transients.
Definition
Returns the number of customer default saves: <Zrd>.
Serial Cmd:
Send <K406?>
Returns <K406, power-on,resets,power-on saves,custom default
saves>
Read Only
Ranges:
0 to 65,535 powerups, 0 to 65,535 resets.
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Hours Since Last Reset
Hours Since Last Reset
(This command is READ ONLY.)
Usage:
Useful as a troubleshooting tool that can help pinpoint the cause of a
reset.
Definition:
Records the number of hours and minutes of operation since the last system reset.
Serial Cmd:
Send <K407?>
Returns <K407hours,minutes>
Read Only
Ranges:
0 to 23 hours, 0 to 59 minutes.
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Chapter 8 Diagnostics
Laser High
When enabled, a message is transmitted whenever the laser current exceeds a factorycalibrated reference value which cannot be altered. The message repeats once every 30
minutes until the condition is corrected.
Laser High Status
Usage:
Alerts the user to impending laser failure. (Contact Service.)
Definition:
Enables the Laser High message.
Serial Cmd:
<K411,laser high status,laser high message,laser low status,laser low
message>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
Laser High Message
Definition:
Defines the Laser High message.
Serial Cmd:
<K411,laser high status,laser high message,laser low status,laser low
message>
Default:
HIGH-LASER
Options:
Any 1 to 10 character ASCII string except NUL, <, or >.
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Laser Low
Laser Low
When enabled, a message is transmitted whenever the laser current falls below a factory-calibrated reference value which cannot be altered. The message repeats once
every 30 minutes until the condition is corrected.
Laser Low Status
Usage:
Alerts the user to impending laser failure. (Contact Service.)
Definition:
Enables the Laser Low message.
Serial Cmd:
<K411,laser high status,laser high message,laser low status,laser low
message>
Default:
Enabled
Options:
0 = Disabled
1 = Enabled
Laser Low Message
Definition:
Defines the Laser Low message.
Serial Cmd:
<K411,laser high status,laser high message,laser low status,laser low
message>
Default:
LOW-LASER
Options:
Any 1 to 10 character ASCII string except NUL, <, or >.
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Chapter 8 Diagnostics
Service Message
Definition:
The service timer is reset on power-on, thus the timer only records the
time that has elapsed since the last reset.
The message is sent every time the timer expires.
Service Message Status
Definition:
When enabled, a message is sent whenever the system detects that a
user-set service time has expired.
Serial Cmd:
<K409,status,service message,threshold,resolution>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Service Message
Serial Cmd:
<K409,status,service message,threshold,resolution>
Default:
SERVICE
Options:
Any 1 to 10 ASCII characters except NULL < , or >.
Threshold
Definition:
Sets the number of hours or minutes that will transpire before the Service message is output.
Serial Cmd:
<K409,status,service message,threshold,resolution>
Default:
300 (5 minutes)
Options:
1 to 65,535
Resolution
Definition:
Records time in seconds or minutes.
Serial Cmd:
<K409,status,service message,threshold,resolution>
Default:
Seconds
Options:
0 = Seconds
1 = Minutes
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Service Message
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Chapter
Calibration
9
Chapter Contents
Calibration ...................................................................................................9-2
Auto Frame..................................................................................................9-6
The purpose of calibration is to optimize certain scanner settings to obtain the highest
read rates in one or several label positions as required by the user’s application. This
section includes the overall steps in calibration and specific steps for calibration by ESP,
serial command, and embedded menus. For most applications, calibration is the only
optical setup required. This section also includes an explanation of Auto Frame commands, the routine for constraining the width of the scan beam.
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Calibration
Calibration
When a Calibrate command is sent, all symbologies are enabled except PDF4171 and
Pharmacode.2 The scanner looks for readable bar code symbols, and records the highest read rates it encounters while stepping through various settings for motor speed,
laser power, fixed gain, and AGC level. If the The software evaluates the results and
selects the best combination.
Setting up for Calibration
Position your bar code symbol at the distance used in your application and confirm that
it is at a distance within the specifications for that symbol size (see “Position Symbol
and Scanner” on page 1-4).
Calibration Methods
There are three ways to start calibration:
• ESP Calibration menu (page 9-3).
• Serial command <@CAL> (page 9-3).
• From the embedded calibration menu <@> (page 9-4).
1. Calibration does not function with PDF417 symbols. However, you can substitute a Code 128
symbol with the same mil size as your PDF417. When you do this, enable Code 128 and after
calibration, switch back to PDF417.
2. Note: If using an I 2 of 5 label, verify that the number of characters in the label being scanned
matches the code length enabled for the I 2 of 5 code type (default is 10 and 6). See “Interleaved 2 of 5” on page 5-13.
9-2
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Chapter 9 Calibration
Calibration By ESP
1. In the Apps Mode, click the Calibration button on the icon bar
at the top of ESP to open the calibration menu.
2. In the Fixed Parameter Calibration area you can select one or
two parameters that you do NOT want to change. (Selecting all
three will produce an error.)
For example, you want to fix Scan Speed and Laser Power.
Check the appropriate boxes and make your settings, as shown here:
Start the calibration procedure by clicking either Calibrate button.
Use the Test button to
start a read rate test.
Click on any one or two Fixed boxes
if you want those parameters to not
change during calibration.
See “Auto
Frame” on
page 9-6.
Uncheck
this box to
disable
Framing.
Click Save to save for
power-on.
Autodiscriminate is used with Test to enable most symbol types. You do
not have to click this when doing calibration since it is part of the routine.
Figure 9-7 Calibration Display
3. Wait for the calibration to cycle through the various settings looking for the best
combination. A Calibration Successful message should eventually appear.
4. Click Save to save for power-on (same as a <Z> command).
Calibration by Serial Command
Send an <@CAL> command to optimize motor speed, laser power and gain level.
Send a <Z> or <Zd> command to save settings.
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Calibration
Calibration by Embedded Menu
To calibrate via the embedded Calibration Setup Menu, do the following:
1. Enter Calibration menu by sending an <@> command from a terminal. This may
take a few seconds to generate.
Figure 9-8 Embedded Calibration Setup Menu
2. Choose your calibration setup option:
Enter 1 to optimize Motor Speed.
Enter 2 to optimize Laser Power.
Enter 3 to optimize Gain Level.
Note: Doing all 3 of the above routines is the equivalent of sending the <@CAL>
serial command or clicking Calibrate in the ESP Calibration display page.
Enter 4 to do laser framing. This is the same as clicking the Auto Frame button
in the Calibration display.
Note: A user can abort calibration at any time by pressing the ESC key on the
terminal. No other keystroke has any effect while in calibration.
3. Wait for the calibration routine to cycle through its settings.
A Calibration in Progress message will be displayed. A new text line will appear
below the menu displaying the progress of the calibration.
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Chapter 9 Calibration
4. Exit the Calibration Setup menu.
To exit the Calibration Setup menu, press the ESC key. The following prompt
will be displayed:
“DO YOU WANT TO USE CALIBRATION SETTINGS? (NOT SAVED) Y/N.”
Typing Y will cause the current settings in the Calibration Setup menu will cause
the scanner to be reset without saving the settings for power-on.
You will then be asked,
DO YOU WANT TO SAVE THESE SETTINGS FOR POWER-ON? Y/N
These settings include Motor Speed, Gain, AGC Level, Laser Power and Laser
Frame.
Typing N will cause the scanner to be reset without saving the settings for poweron.
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Auto Frame
Auto Frame
Auto Frame by ESP
In the Calibration menu you can also use the Auto Frame command to constrain the
width of the scan beam. This is useful if extraneous markings interfere or slow down
decoding. It works by setting the length of time the laser is ON during each scan so that
only a selected portion of the scan width is effectively scanned.
1. In the Apps Mode, click the Calibration button on the icon bar at
the top of ESP to open the calibration menu.
In the Auto Frame portion of the display, note that in the default
mode is Framing Enabled the Off position is set to 95 and the On
position is set to 10.
2. To adjust the scan width automatically, click on the Auto Frame button.
The scanner will locate the start and stop characters and adjust the scan beam
timing so that the scan width is constrained but still covers the entire symbol.
Figure 9-9 Auto Frame Defaults
Figure 9-10 Constrained Scan Beam Wid
You can also adjust the framing manually by moving the Off and On selectors while
visually observing the size of the scan beam.
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Chapter 9 Calibration
Auto Frame by Embedded Menu
From the embedded menus, select Scanner Setup 2. From here you can use the
Laser On Position %and Laser Off Position % to constrain the width of the scan
beam.
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Auto Frame
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Chapter
Terminal Mode
10
Chapter Contents
Terminal Window.......................................................................................10-2
Find Function.............................................................................................10-3
Macros.......................................................................................................10-4
Terminal Window Functions ......................................................................10-5
This section describes the terminal window and macro functions.
Note: The characters NULL <> and , can only be entered through embedded menus,
not through ESP or serial commands.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
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Terminal Window
Terminal Window
To use the terminal mode, click on the Terminal button.
You will see the following window:
Type in text
here to find
in terminal
window
Copy, paste,
and save
Clear
screen
Macro
List on
this bar
Terminal
screen
Click on Macros arrow to Add Macro,
Remove Macro or Edit Macro
Click on Macro to Run
Figure 10-11 Terminal Window
The terminal screen allows you to enter serial commands (in red) from the macro box,
by copying, or directly from your keyboard.
The terminal screen also displays bar code data or information from the reader (in
blue).
You can also right click in the terminal screen to bring up a handy option box.
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Chapter 10 Terminal Mode
Find Function
The Find box allows you to enter text strings to be searched for in the terminal window.
For example a series of bar codes have been scanned into the terminal view and you
want to determine if a particular bar code starting with ABC has been read.
1. Type ABC into the Find box.
2. Press Enter.
The first instance of ABC will be high-lighted in the terminal window.
3. Press the F3 key to search again for the next instance of ABC.
4. Press Shift-F3 to search for the previous instance of ABC.
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Macros
Macros
Macros can be stored in a macro selection bar, edited in a separate window, and executed by clicking on the macro name.
Click on Next
Row to see
the next row
of macros
Click on the first arrow here to
Add Macro or Default Macros.
When you default macros, the
entire macros set is restored to
their original macro commands.
Click here to edit a
macro.
When you click on the macro name, the macro is executed in the terminal window.
If this is a command, the command is also sent to the reader at the same time it is displayed.
Editing a Macro
When you click the arrow next to a any macro and select Edit, the following appears:
You can edit an existing macro or type in a new macro name and define it in the Macro
Value text box. Click OK.
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Chapter 10 Terminal Mode
Terminal Window Functions
Right-click on the terminal window to display the following:
Copy selected text to clipboard.
Paste from terminal or computer text.
Clear all text in terminal window.
Select All text in the terminal window.
Save... brings up a save as dialog box.
Change Font... of data text, brings up a text
dialog.
• Change Echo Font... to change typed in text
or commands.
• Change Background Color of terminal window.
• Default Settings changes all the above back
to default settings.
•
•
•
•
•
•
Terminal Pulldown Menu
The pulldown Terminal menu has Capture and Save Current Text as well as the
functions defined above.
• Capture lets you append data in real time to a
text file of your choice. While in operation, the
text file cannot be opened. You can select
Pause to interrupt the capture flow or Stop to
end the flow and open the file.
• Save Current Text... saves all text in the terminal window to a text file of your choice.
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Terminal Window Functions
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Chapter
Utilities
11
Chapter Contents
Utilities by ESP Menu ................................................................................11-2
Summary of Utilities Commands ...............................................................11-3
Read Rate .................................................................................................11-5
Counters ....................................................................................................11-6
Master Database .......................................................................................11-8
Digital Bar Code ......................................................................................11-11
Firmware .................................................................................................11-12
Device Control .........................................................................................11-13
Symbol Type ...........................................................................................11-15
Defaulting/Saving/Resetting ....................................................................11-16
Microscan Grading ..................................................................................11-17
Reader Status Requests .........................................................................11-19
Utility commands are generally commands that are performed during reader operations
to check read rates, determine read rates or perform miscellaneous operations on
reader hardware. Serial utility commands are not prefaced with a “K” and a numeric
code, nor do they require an initialization command (<A> and <Z>). They can be
entered from within any terminal program or from within ESP in the Terminal window.
Note: You can learn the current setting of any parameter by inserting a question mark
after the number, as in <K100?>. To see all “K” commands, send <K?>.
Note: The characters NULL <> and , can only be entered through embedded menus,
not through ESP or serial commands.
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Utilities by ESP Menu
Utilities by ESP Menu
Click this button to
bring up the Utilities
menu
Utilities opens in the
Read Rate utility.
Click on the tabs to
access other utilities.
Note: Utility commands are not accessible by embedded menus.
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Chapter 11 Utilities
Summary of Utilities Commands
Table 11-2 Utilities Commands
Command Type
Read Rate
Counter Request
and Clear
Matchcode
Part Number/
Checksum
Device Control
Command
<Cp>
<C>
<J>
<N>
<O>
<T>
<U>
<V>
<W>
<X>
<Y>
<E>
<F>
<K224,number of master symbols>
<)data)>
<K231,master symbol
number,data>
<G>
<Gmaster symbol number>
<)>
Name
Enter Single Symbol Percent Rate Test
Enter Single Symbol Decode Rate Test
Exit Decode Rate and Percent Rate Test
Noread Counter
Noread Counter Reset
Trigger Counter
Trigger Counter Reset
Good Read/Match Counter
Good Read/Match Counter Reset
Mismatch Counter
Mismatch Counter Reset
Enable Matchcode (see also <K223,...> on page 7-4.)
Disable Matchcode (see also <K223,...> on page 7-4.)
Set master symbol database size.
Also <KMnumber of master symbols>
Enter symbol data as master symbol #1.
Enter symbol data to specified master symbol.
Also <Mmaster symbol number,data>
Store next symbol scanned as master symbol #1.
Store next symbol scanned as specified master symbol.
Request master symbol #1.
Request all master symbol information.
<K231, ?>
Also <M?>
<K231, master symbol Request specified master symbol information.
Also <M#?>
number?>
<K231, master symbol Delete specified master symbol.
Also <Mmaster symbol number,>
number,>
<))>
Delete Master Symbol # 1
<K225,status>
Enable/disable New master pin
<!>
Display Checksums of EPROM Flash memory
<!b>
Display Checksum for Boot Code
<!a>
Display Checksum for Application Code
<#>
Display Part Numbers
<#b>
Display Boot Code Part Number
<#a>
Display Application Code Part Number
<H>
Enable Laser Scanning
<I>
Disable Laser Scanning
Motor On
<K500> or <KE>
<K501> or <KF>
Motor Off
<L1>
Programmable Output 1
<L2>
Programmable Output 2
<L3>
Programmable Output 3
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Summary of Utilities Commands
Code Types
Trigger
Default/Reset/
Save
Status Requests
<P>
<Q>
<R>
<S>
<char>
<A>
<Ard>
<Arp>
<Arc>
<Z>
<Zc>
<?>
<?1>
<K?>
Autodiscriminate All Codes except Pharmacode and PDF417
Enable Code 39 Only
Enable Codabar Only
Enable I 2/5 Only
Serial Trigger Character
Reset (does not save for power-on)
Reset and recall factory defaults
Reset and recall power-on parameters
Recall and recall customer default parameters
Save current settings for power-on
Save current settings as customer default parameters
Scanner Status
Extended scanner status
Configuration status
Note: Utility commands are not accessible by embedded menus.
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Chapter 11 Utilities
Read Rate
When in a read rate mode, the scanner will output a number preceding the symbol
data. This number will represent either the number of decoded scans per second or the
percentage of successful decoder per total number of scans.
Make a note of the decode rate. It will be a useful reference when calculating the number of decodes (see “Formulas for Number of Decodes” on page A-46).
Read Rate by ESP
You can access Read Rate from
the Utilities menu. To start or
end a read rate test, right-click
Read Rate and select Start or
Stop.
To change from percent read rate
to decodes per second, first end
the read rate by selecting Stop,
then right-click and select
Decodes/Sec.
Read Rate by Serial Command
Enter Single Symbol Decodes/Second Test
Sending <C> instructs the scanner to transmit the decodes per second and symbol
data (if any). The decode rate can vary dramatically due to the angle and location of the
symbol in relation to the scan line. This test is very useful in aligning and positioning
the scanning device during installation.
Enter Single Symbol Percent Test
Sending <Cp> instructs the scanner to transmit the percentage of decodes and any
scanned symbol data.
End Read Rate Test
Sending <J> ends both the Percent test and the Decodes/Second test for both single and multi-symbol.
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Counters
Counters
Counter commands can be a numeric value from 00000 to 65,535. After reaching the
maximum numeric limit of 65,535, the counter will automatically roll-over and start
counting again at 00000. To obtain the cumulative total of counts after the roll-over has
occurred, add 65,536 per each roll-over (the scanner does not keep track of the number of roll-overs) to the current count.
Note: All counter values will be lost if power is recycled to the scanner or the scanner
receives a reset or save command.
Counter by ESP
You can access Counters from the Utilities menu.
Right-click the appropriate counter option and select Request to display count or
Clear to set counter to zero. Or, right-click on Counters and select Request All.
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Chapter 11 Utilities
Counters by Serial Command
Noread Counter
Sending <N> displays the total number of noreads that have occurred since the last
reset.
Noread Counter Reset
Sending <O> sets Noread Counter to 00000.
Trigger Counter
Sending <T> displays the total number of triggers since the last reset.
Trigger Counter Reset
Sending <U> sets the trigger counter to 00000.
Good Read/Match Counter
Sending <V> displays the total number of good reads matching the master symbol if
Matchcode is enabled. This counter is always enabled, but will only work as a match
count when Matchcode is enabled. If Matchcode is not enabled, this counter records
the number of good reads. This count can be requested at any time.
Good Read/Match Counter Reset
Sending <W> sets the match counter to 00000.
Mismatch Counter
With Matchcode enabled, sending <X> displays the number of decoded symbols since
the last reset that do not match the master symbol.
Mismatch Counter Reset
Sending <Y> sets the mismatch counter to zero.
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Master Database
Master Database
Important: Master Symbol Database is used only for comparing entire bar codes,
when Sequential and Wild Card are NOT enabled, and Start Position is equal to 0.
Usage:
Useful where more than one master symbol is required, as in a Multisymbol setup, for matching and other matchcode operations.
Definition:
Allows you to define up to 10 master symbols as the master symbol database, which can be entered by keyboard, scanned in, displayed, or
deleted by serial or ESP commands.
Master Symbol Database Size
Definition:
Master Symbol Database Size allows you to select 1 to 10 master
symbols for the master symbol database.
Serial Cmd:
<K224,number of master symbols>
Default:
1
Options:
1 to 10
To access in ESP
1. Click the Utilities button and click the Master Database tab.
2. Click the Matchcode Type checkbox to enable Matchcode.
3. Set the number of master symbols you want to include.
Scroll up or down to set the
master symbol database size.
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Chapter 11 Utilities
Enter Master Symbol Data
Definition:
Allows you to enter master symbol data for a specific master symbol
index number (1 to 10), provided the index number is not larger than the
number of symbols enabled by the Master Symbol Database Size (see
page 11-8). For example, if Master Symbol Database Size is set to 2,
you will not be able to enter data for symbols 3 through 10.
ESP:
1. Double-click on each
index number you
want to setup and
copy or type in your
data in the popup data
entry box.
2. Click on the Send
Database to Reader
button.
Note: You can also click
Receive Reader’s Database to enter the scanner’s current database
settings or click Read Symbol into Selected Index to enter the data
from a symbol that is in the scanner’s read range.
Serial Cmd:
<K231,master symbol number,master symbol data>
Default:
1, blank
Options:
1 to 10, any combination of ASCII text up to the maximum indicated in
“Maximum Characters for Master Symbol Database” on page 11-10.
For example, to enter data for master symbol 9, after making certain that
master symbol database size is enabled for 9 or more symbols (see
“Master Symbol Database Size” on page 11-8), send
<K231,9,data>.
Caution: Since the total number of characters available for the master symbol database is 128, changes to the Master Symbol Database Size will re-allocate the number of characters available for each master symbol and could cause existing master
symbols to be deleted (except master symbol #1 unless it also exceeds the size limitation).
Table 11-3, “Maximum Characters for Master Symbol Database,” on page 1110 specifies the maximum number of characters available to each symbol according to
the number of master symbols defined, from 1 through 10. See “Master Symbol
Database Size” on page 11-8.
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Master Database
Table 11-3 Maximum Characters for Master Symbol Database
Master Symbol Number
#1
#2
#3
#4
#5
#6
Maximum Characters
127
62
39
28
20
15
Note: See Chapter 7, “Master Symbol Database” for information on master symbol
database and related commands.
Store Next Symbol as Master Symbol
Definition:
After you’ve set the size in the database, you can order the scanner to
scan-in the next symbol as master symbol 1.
Serial Cmd:
<Gmaster symbol number>
To store the next symbol scanned as master symbol #1 send: <G> or
<G1>. For all symbols numbers except 1, the number must be included.
Options:
1 to 10
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Chapter 11 Utilities
Digital Bar Code
When you click the
Digital Bar Code
tab and the Start
button, a digitized
representation of
the symbol in front
of the scanner will
appear.
This routine is
useful for conveying a sense of the
symbol’s readability and graphically
indicating bad or
unreadable portions of symbols,
extraneous
“noise,” etc. A
green waveform indicates a decoded symbol; a red waveform indicates an undecoded
symbol or other object.
The read triangles represent the width of the scan beam relative to the symbol. The
upward pointing arrows indicated the symbol’s margin.
Zoom In, Zoom Out
You can zoom in by sliding the Zoom lever to the right. You may have to scroll right or
left to locate your symbol, but the results will be striking.
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Firmware
Firmware
Firmware Update is used to download application code to the reader.
Application code versions are specific to your reader. Consult with your sales representative before downloading application code. If needed, an application code will be sent
to you in the form of a *.mot file.
To download application code:
1. First make sure the host is connected to your reader.
2. Apply power to the reader.
3. In the Firmware Update pulldown window, select App Code.
This will open a file dialog box.
4. Navigate to the appropriate file (a *.mot file) and open the file.
5. Allow a minute or so for the firmware to download.
As application code begins to download to the reader, the reader will go silent, the
reader’s RDY and GD/RD LEDs will flash intermittently, and a progress indicator at the
bottom of the ESP window will let you know when the download is complete.
Caution: Do not interrupt power or disconnect the host cable while download is in
progress.
Firmware/Checksum Verification
From Firmware Verification you can request the part number and checksum from by
selecting App Code or Boot Code and clicking the accompanying Request... button.
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Chapter 11 Utilities
Device Control
Outputs
You can access Device Control from the Utilities menu.
Output # 1 Pulse
Definition:
Activates the link between Output 1 (+) and Output 1 (–) of the host connector for the duration set by “Pulse Width” on page 6-19. (regardless
of Master Symbol or Output 1 status).
ESP:
Click Output # 1 Pulse to activate.
Serial Cmd:
<L1>
Output # 2 Pulse
Definition:
Activates the link between Output 2 (+) and Output 2 (–) of the host connector for the duration set by “Pulse Width” on page 6-19. (regardless
of Master Symbol or Output 2 status).
ESP:
Click Output # 2 Pulse to activate.
Serial Cmd:
<L2>
Output # 3 Pulse
Definition:
Activates the link between Output 3 (+) and Output 3 (–) of the host connector for the duration set by “Pulse Width” on page 6-19. (regardless
of Master Symbol or Output 3 status).
ESP:
Click Output # 3 Pulse to activate.
Serial Cmd:
<L3>
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Device Control
Extras
You can access Device Control from the Utilities menu
Disable Reader
Usage:
This feature is useful during extended periods of time when no symbols
are being scanned or the reader is being configured.
Definition:
Sending <I> will turn the laser off and end the current read cycle.
ESP:
Click Disable Reader button.
Serial Cmd: <I>
Disabling laser scanning will not affect any downloaded commands to the reader.
Enable Reader
Definition:
Causes the laser scanner to be on continuously.
ESP:
Click Enable Reader button.
Serial Cmd: <H>
Note: Enable/Disable Reader does not relate to Laser On/Off command.
Send Motor Off
Usage:
This feature is useful during extended periods of time when no symbols
are being scanned or the reader is being configured.
Definition:
Turns the spinning mirror off (if not already running).
ESP:
Click Send Motor Off button.
Serial Cmd:
<KF>
Send Motor On
Usage:
This feature is useful during extended periods of time when no symbols
are being scanned or the reader is being configured.
Definition:
Turns the spinning mirror on (if not already running).
ESP:
Click Send Motor On button.
Serial Cmd:
<KE>
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Chapter 11 Utilities
Symbol Type
Sending <P> enables the scanner to decode all available symbol types except Pharmacode and PDF417 without changing scanner configuration.
Sending <Q> enables the scanner to decode Code 39 symbols without changing scanner configuration.
Sending <R> enables the scanner to decode Codabar symbols without changing scanner configuration.
Sending <S> enables the scanner to decode I 2 of 5 symbols without changing scanner
configuration.
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Defaulting/Saving/Resetting
Defaulting/Saving/Resetting
Table 11-4 Software Reset/Save/Recall Commands
<A>
<Ard>
<Arp>
<Arc>
<Z>
<Zc>
<Zrd>
<Zrc>
Reset (does not save for power-on)
Reset and recall Microscan defaults
Reset and recall power-on parameters
Reset and recall customer default parameters
Save current settings for power-on
Save current settings as customer default parameters
Recall Microscan default parameters and save for
power-on
Recall customer parameters and save for power-on
See Appendix G — “Defaulting/Saving/Resetting” on page A-20 for complete
explanation on resets, saves and defaulting.
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Chapter 11 Utilities
Microscan Grading
Microscan grading informs the user how the scanner perceives a symbol it is
scanning. Except for special circumstances, the slower the scan speed and the closer
the symbol is to the focal point, the more accurate the results.
The grading feature is available for the following symbologies: Code 39, Codabar, Code
128, I-2/5, and Code 93.
Command Format
<GRADE,xx.xx> where xx.xx is the symbol length in inches with up to two digits in
front of the decimal point and two digits behind the decimal point.
Example: Send <GRADE,01.50> for a symbol 1.5 inches in length.
Operation
Once the command has been sent, the scanner will enter a user test mode for up to two full
seconds. During this time the scanner will attempt to complete ten decodes of the samesymbol. If this occurs, the scanner will output the grading information for this symbol.
Microscan Grading Output
Example:
The following information is output:
• Symbol Type - The type of symbol decoded.
• Symbol Direction - The direction of the symbol presented to the scanner.
• Symbol Length - The length of the symbol data encoded.
• Symbol Data - The data encoded in the symbol.
• Check Character - Displays the check digit type that the scanned symbol complies
with. If the symbol does not comply, then the scanner outputs “Failed.”
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Microscan Grading
• Decodability - Calculates the decodability of the symbol using the video acquired
by the reader. The calculations are consistent with ANSI X3.182-1990 however the
it is important to note the measurements used to acquire the symbol information
are proprietary and are not ANSI compliant.
• W/N Ratio - Calculates the wide to narrow ratio of the symbol using the video
acquired by the reader. The calculations are consistent with ANSI X3.182-1990
however the it is important to note the measurements used to acquire the barcode
information are proprietary and are not ANSI compliant.
• Average Narrow Bar - Calculates the wide to narrow ratio of the symbol using the
video acquired by the reader. The calculations are consistent with ANSI X3.1821990 however the it is important to note the measurements used to acquire the
barcode information are proprietary and are not ANSI compliant.
• Average Bar Error - Calculates the average bar error in relation to the spaces and
the average narrow element. This is a good representation of the amount of over or
under printing.
• Intercharacter Gap - Measures the largest intercharacter gap within the symbol.
If the symbol does not have intercharacter gaps then N/A is output.
• Margin - Measures the size of the smallest margin around the symbol.
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Chapter 11 Utilities
Reader Status Requests
<?> Scanner Status Byte
The scanner responds to a status request <?> with a two character hex value, for
example <?/22>. To determine the status:
1. Look up the binary conversion in Table 11-5.
For example, the first 2 in binary would be 0 0 1 0 as read from binary digits 3
through 0; the second 2 the binary digits 7 through 4 which is also 0 0 1 0.
2. Next, enter your binary values in Table 11-6 in the “Binary” column next to the
appropriate bit.
Table 11-5 Hex
Table 11-6 MS-3 FIS-0003 Laser Scanner Status
Value to Binary
Bit
Binary
Scanner Status
Conversion
Command error (last command received)
0
0
Binary
Command received
1
1
Bit
Communication error
2
0
Hex
Digits
Value
Novram read/write error
3
0
7 6 5 4
Motor timeout error OR scanning disabled
4
0
3 2 1 0
Scanner is in a read cycle
5
1
0
0 0 0 0
Software Watch dog reset
6
0
1
0 0 0 1
2
0 0 1 0
Hardware Watch dog reset
7
0
3
0 0 1 1
4
0 1 0 0
3. Under “Binary,” interpret 1s as true and the 0s as not
5
0 1 0 1
true. For example, bit 1 has a 1 in the “Binary” col6
0 1 1 0
umn, indicating “Command Received.” Bit 5 is also a
7
0 1 1 1
1 indicating that the “Scanner is in a read cycle.”
8
1 0 0 0
<?1 > Extended Status
The scanner responds to an extended status request
<?1> with several fields, for example: <?/F><?1/35338200-12,35-338201-14,476C,33,33>.
9
A
B
C
D
E
F
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
These represent: the status byte discussed above, the boot part number (35-33820012), the application part number (35-338201-14), the fpga part number (5-55900118), flash checksum (476C), current RAM parameter checksum (33), and flash parameter checksum (33).
<K?> Configuration Command Status
Returns the current status of all configuration commands.
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Reader Status Requests
11-20
MS-3 Laser Scanner User Manual
Appendices
Appendix A General Specifications.............................................................................................. A-2
Appendix B Electrical Specifications............................................................................................ A-5
Appendix C Serial Configuration Commands .............................................................................. A-6
Appendix D Serial Command Format .......................................................................................... A-9
Appendix E ASCII Table ............................................................................................................ A-11
Appendix F Defaulting/Saving/Resetting ................................................................................... A-13
Appendix G Symbol Configuration............................................................................................. A-15
Appendix H Object Detector ...................................................................................................... A-17
Appendix I Formulas for Number of Decodes............................................................................ A-18
Appendix J Operational Tips...................................................................................................... A-21
Appendix K Interface Standards ................................................................................................ A-22
Appendix L Multidrop Communications ..................................................................................... A-23
Appendix M Troubleshooting ..................................................................................................... A-28
Appendix N Glossary of Terms .................................................................................................. A-30
MS-3 Laser Scanner User Manual
A-1
General Specifications
Appendix A — General Specifications
Mechanical
Height (Standard):
Width (Standard):
Depth (Standard):
Weight (Standard):
Height (Right-Angle):
Width (Right-Angle):
Depth (Right-Angle):
Weight (Right-Angle):
0.85” (21.6 mm)
1.75” (44.5 mm)
1.75” (44.5 mm)
2.0 oz. (57 g)
0.90” (22.9mm)
2.25” (57.2mm)
2.40” (61.0mm)
3.5 oz. (135 g)
Environmental
Enclosure rating: IP54, category 2
Operating temperature: 0° to 50°C
(32° to 122°F)
Storage temperature: –30° to 60°C
(–22° to 140°F)
Humidity: Up to 90% (non-condensing)
Operating Life: 40,000 hours at 40°C
CE Mark
General Immunity for light industry:
EN 55024: 1998 ITE Immunity Standard
Radiated and Conducted Emissions of ITE Equipment:
EN 55022:98, ITE Disturbances.
MS-3 Laser Scanner
Optics
Semiconductor, visible laser diode
(650nM nominal); CDRH Class II
Scanning Parameters
Options: Single line, fixed raster
Scan rate: Adjustable from 300 to 1000 scans/second;
default = 500 sps
Scan width angle: >70°
Pitch: ±50° maximum
Skew: ±40° maximum
Symbol contrast: 25% min. @ 650nM
Connector
3 ft. (914mm) cable terminated with 15-pin D-sub socket
connector
Electrical
5VDC ±5%, 200mV p-p max. ripple, 260mA @ 5VDC
(typical)
Discrete I/O
Trigger Input: 3 to 24V rated (1mA @ 5 VDC)
New Master: 3 to 24V rated (1mA @ 5VDC)
Outputs (1, 2, 3): 5V TTL compatible, can sink 10 mA and
source 2 mA.
A-2
MS-3 Integral Right
Angle Laser Scanner
MS-3 Laser Scanner User Manual
Appendices
Symbologies
Standard: Code 39, Code 128, I 2/5, Codabar, Code 93, UPC/EAN, Pharmacode
Special option: PDF417
Indicators
Beeper: Good Read, Match/Mismatch, Noread, On/Off
LEDs: 1 status, 1 power, 5 read performance (representing the percentage of decodes).
LED
Power
Ready/80%
GD/RD/100%
State
Green On
Amber On
Amber On
Status
Scanner has power
Scanner is in read cycle
Good Read
Safety Certifications
CDRH, FCC, UL/cUL, CE, BSMI (compliant)
RoHS/WEEE Compliant
©2015 Microscan Systems, Inc.
All rights reserved. Specifications subject to change.
Product specifications are given for typical performance at 25°C (77°F) using grade A labels. Performance
characteristics may vary at high temperatures or other environmental extremes. Warranty–One year limited
warranty on parts and labor. Extended warranty available.
MS-3 Laser Scanner User Manual
A-3
General Specifications
Read Ranges
High Density
Low Density
Narrow Bar Width
.0033” (0.84 mm)
.005” (.127 mm)
.0075” (.191 mm)
.010” (.254 mm)
2.3” to 2.6” (58 to 66 mm)
2” to 3.1” (51 to 79 mm)
1.7” to 3.7” (43 to 94 mm)
1.5” to 4” (38 to 102 mm)
Narrow Bar Width
.0075” (.191 mm)
.010” (.254 mm)
.015” (.381 mm)
.020” (.508 mm)
3” to 6” (76 to 152 mm)
2” to 7” (51 to 178 mm)
2” to 8” (51 to 203 mm)
2” to 10” (51 to 254 mm)
A-4
High Density
Low Density
MS-3 Laser Scanner User Manual
Appendices
Appendix B — Electrical Specifications
Maximum Operating Power: 2W
Power Input: 5VDC ±5%, 200mV p-p max. ripple, 260 mA @ 5VDC (typical)
Trigger, Input 1, New Master: 5 to 28 VDC rated (optoisolated)
Outputs (1,2,3): 1 to 28VDC rated (optoisolated) (ICE <100mA @24VDC, current limited by user)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Host RS-232
Host & Aux. RS-232
Host RS-422/485
Power +5VDC
TxD
TxD
TxD (-)
RxD
RxD
RxD (-)
Power/Signal Ground
NC
RTS
Aux. TxD
TxD (+)
Output 1 TTL (can sink 10mA and source 2mA)
Default Configuration (NPN)
Trigger (NPN)
CTS
Aux. RxD
RxD (+)
Output 3 TTL (can sink 10mA and source 2mA)
New Master Pin (NPN)
Chassis Ground
Output 2 TTL (can sink 10mA and source 2mA)
NC
In/Out
In
Out
In
Out
Out
In
In
In
Out
In
Out
Caution:
1. Be sure all cables are connected BEFORE applying
power.
2. Always power down BEFORE disconnecting any
cables.
MS-3 Laser Scanner User Manual
A-5
Serial Configuration Commands
Appendix C — Serial Configuration Commands
The following table is a list of all the available serial configuration commands (also called
“K commands”). These commands are also listed at the beginning of each applicable
chapter.
Command Title
Password Status
Password Entry, Change
Host Port Connections
Host Protocol
Host RS-422 Status
Auxiliary Port Parameters
Preamble
Postamble
LRC
Intercharacter Delay
Multisymbol
Trigger Mode
External Trigger State
Serial Trigger Character
Format
Communications
<K732,status>
<K733,password,new password>
<K100,baud rate,parity,stop bits,data bits>
<K140, protocol>
<K102,status>
<K101,aux port mode,baud rate,parity,stop bits,data bits,daisy chain
status,daisy chain ID>
<K141,status,preamble>
<K142,status,postamble>
<K145, status>
<K144, intercharacter delay>
Read Cycle
<K222, number of symbols,multisymbol separator>
<K200, trigger mode,trigger filter duration>
<K202, external trigger state>
<K201, serial trigger character>
Start Serial Trigger Charac<K229,start trigger character>
ter
Stop Serial Trigger Charac<K230,stop trigger character>
ter
<K220,end of read cycle mode,read cycle timeout>
End of Read Cycle
Decodes Before Output
<K221,number before output,decodes before output mode>
Automatic Gain Control
<K504,gain level,AGC sampling mode,AGC min,AGC max>
Scan Speed
<K500,scan speed>
Symbol Detect/Transition
<K505,symbol detect status,transition counter>
Maximum Element
<K502,maximum element>
Scan Width Enhance
<K511,scan width enhance>
<K700,laser on/off status,laser framing status,laser on position,laser
Laser Setup
off position,laser power>
Symbologies
<K470,status,check digit status,check digit output status,large intercharacter gap,fixed symbol length status,default symbol length,full
Code 39
ASCII set>
A-6
MS-3 Laser Scanner User Manual
Appendices
Code 128
Interleaved 2 of 5
Codabar
UPC/EAN
Code 93
Pharmacode
PDF417 (special)
<K474,status,fixed symbol length status,fixed symbol length,EAN128 status,output format,application record separator status,application record separator character,application record brackets,application record padding>
<K472,status,check digit status,check digit output status,symbol
length #1,symbol length #2,guard bar status,range mode>
<K471,status,start & stop match status,start & stop output status,large intercharacter gap,fixed symbol length status,symbol
length,check digit type,check digit output status>
<K473,UPC status,EAN status,supplementals status,separator status,separator character,supplementals type,UPC-E output as UPCA>
<K475,status,fixed symbol length status,fixed symbol length>
<K477,status,fixed bar length status,fixed bar length,min. no. of
bars,bar widths,direction,fixed threshold value>
<K476,status,[unused],fixed symbol length status,fixed symbol
length,decode at end of read cycle>
Narrow Margins/Symbol<K450,narrow margins status,symbology identifier status>
ogy ID
Background Color
Symbol Data Output
Noread Message
Bad Symbol Message
No Symbol Message
Beeper
Partial Output
Serial Verification
EZ Button
Output 1 Parameters
Trend Analysis (Output 1)
Diagnostics (Output 1)
Output 2 Parameters
Trend Analysis (Output 2)
Diagnostics (Output 2)
Output 3 Parameters
Trend Analysis (Output 3)
Diagnostics (Output 3)
<K451,background color>
I-O Parameters
<K705,symbol data output mode,when to output>
<K714,status,noread message>
<K715,bad symbol status,bad symbol message>
<K716,no symbol status,no symbol message>
<K702,beeper output>
<K703,partial output status,start position,length>
<K701,serial command echo status,serial command beep sta-
tus,control/hex output>
<K770,global status,default on power-on>
<K810,output on,active state,pulse width,output mode>
<K780,trend analysis mode,trigger evaluation period,number to output on,decodes/trigger threshold>
<K790,over temperature,service threshold,[unused],laser current
high,laser current low,low temp>
<K811,output on,output state,pulse width,output mode>
<K781,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
<K791,over temperature,service threshold,unused,laser current
high,laser current low,low temp>
<K812,output on,output state,pulse width,output mode>
<K782,trend analysis mode,number of triggers,number to output
on,decodes/trigger threshold>
<K792,over temperature,service threshold,unused,laser current
high,laser current low,low temp>
MS-3 Laser Scanner User Manual
A-7
Serial Configuration Commands
Quality Output
Matchcode Type
New Master Pin
Master Symbol Database Size
Matchcode Enable
Enter Data to Database
Request Master Symbol
Info
Request All Master Symbol
Info
Delete Master Symbol
Store Next Symbol as Master
<K704,quality output separator,decodes/trigger status,decode direction status>
Matchcode
<K223,matchcode type,sequential matching,match start position,match length,wild card character,sequence on
noread,sequence on mismatch>
<K225,status>
<K224, number of master symbols>
<K223,status>
<K231,master symbol number,master symbol data>
<K231?,master symbol number>
<K231,?>
<K231,master symbol number,>
<Gmaster symbol number>
Diagnostics
<K406,power-on,resets,power-on saves,custom default
Counts, Power-on/Resets saves>
Hours Since Last Reset <K407?> (read only--returns: hours,minutes)
<K400, warning message status,laser high status,laser low staWarning Messages
tus,novram/reset warning status>
<K411,laser high status,laser high message,laser low status,laser
Laser High/Low
low message>
<K409,status,service message,threshold,resolution>
Service Message
Serial Communication Programs
You can send serial commands from your terminal window in ESP. You can also use a terminal program such as Hyperterminal to send serial commands from your PC to the scanner.
From your PC host computer, you can ini-tiate communications with the scanner by with a
terminal communications program such as Hyperterminal™ provided in the Windows™
operating system.
In order to communicate with the scanner, you will need to use the following commu-nications settings:
Baud = 9600
Parity = Even
Stop Bits = One
Data Bits = Seven
Flow Control = None
A-8
MS-3 Laser Scanner User Manual
Appendices
Appendix D — Serial Command Format
Serial commands are of two types: utility and configuration.
Rules that apply to both utility and configuration commands
• A less than < and greater than > characters enclose the commands unless non-delimited
commands are used. (See "Trigger Mode" on page 4-6.)
• Commands and data are “case sensitive.” That is, characters must be entered as upper
or lower case, as specified.
Serial Utility Commands
These are sent during operations and are not followed by <A> or <Z>.
Serial Configuration “K” Commands
These begin with a single K character followed by a three digit numeric, a comma, data
fields separated by commas, and typically, an initializing command, as follows:
<Kthree digit numeric,data,data,...etc.><initializing command>1
An initializing command of type “A” (not saved to non-volatile memory) or type “Z” (saved
to non-volatile memory) may follow the command.
For example, to enable UPC and save the change for power-on, send: <K473,1><Z>.
To change Baud Rate and reset without saving changes for power-on, send
<K100,3><A>.
Serial Configuration Command Conventions:
• All data fields (except the last) must be followed by a comma (without a space).
• The following characters cannot be used: , <, >, and NULL.
• All fields preceding a modified field must be included.
• If there is no change in preceding fields, then commas alone can be entered in these
fields. For example, if only the last field in the following command is changing,
<K100,4,1,0,0> can be entered as <K100,,,0>.
• All fields following a modified field can be omitted. For example, to change Baud Rate,
send <K100,3>.
1. Many K command will automatically be saved for power-on.
MS-3 Laser Scanner User Manual
A-9
Serial Command Format
Concatenating Configuration Commands
Commands can be concatenated (added together) in a single string or data block.
Serial Command Status Request
To ensure that any command was received and accepted, you can send the Show Scanner Status command: <?>.
The status of a specific serial command can be requested by entering the command followed by a question mark, for example <K101?>. To see all K commands, send a <K?>
command.
With the FIS-0003, each K command is framed with a preamble and postamble and may
be mixed with bar code symbol data. To prevent this, send an <I> command to disable
scanning before sending the K request. Follow the K request with an <H> command to
restore scanning.
Entering Special Characters in Serial Commands
To enter control characters within a serial command, hold down the control key while typing the desired character.
Entering Special Characters in Embedded Menus
Control Characters
Control characters entered on the command line are displayed in the menu as mnemonic
characters, such as: <CR><LF><NUL><NUL>.
Press SP (the space bar) once, then enter the control character by holding down the control key and simultaneously pressing the desired character. For example to define a line
feed, press SP, then Control and J simultaneously. It is displayed as ^J on the command
line and as <LF> in the menu when the screen is refreshed.
To Define a Carriage Return as a Character
Press SP, then CR. It is displayed as ^M on the command line and as <CR> in the menu
when the screen is refreshed.
To Define a Space as a Character
Press SP twice. It is displayed as a blank space in the menu when the screen is refreshed.
While it appears that nothing has been assigned, the hex value 20 will be sent during data
transmission.
To Select NUL as the Character
Press SP, then a 0 (zero). It is displayed as <NUL> in the menu when the screen is
refreshed.
A-10
MS-3 Laser Scanner User Manual
Appendices
Appendix E — ASCII Table
Dec
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Hex
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
Mne
NUL
SOH
STX
ETX
EOT
ENQ
ACK
BEL
BS
HT
LF
VT
FF
CR
SO
SI
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US
Ctrl
^@
^A
^B
^C
^D
^E
^F
^G
^H
^I
^J
^K
^L
^M
^N
^O
^P
^Q
^R
^S
^T
^U
^V
^W
^X
^Y
^Z
^[
^\
^]
^^
^_
MS-3 Laser Scanner User Manual
Dec
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Hex
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
Ch
SP
!
“
#
$
%
&
'
(
)
*
+
,
.
/
0
1
2
3
4
5
6
7
8
9
:
;
<
=
>
?
Dec
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
Hex
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
5E
5F
Ch
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
\
]
^
_
Dec
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
Hex
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
Ch
`
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
{
|
}
~
D
A-11
ASCII Table
Communication Protocol Commands
Protocol Command
(Mnemonic displayed on
menu)
RES
REQ
EOT
STX
ETX
ACK
NAK
XON
XOFF
A-12
Control Characters
(Entered in menu or
serial command)
^D
^E
^D
^B
^C
^F
^U
^Q
^S
Hex
Code
04
05
04
02
03
06
15
11
13
Effect of Command
Reset
Request
Reset
Start of Text
End of Text
Acknowledge
Negative Acknowledge
Begin Transmission
Stop Transmission
MS-3 Laser Scanner User Manual
Appendices
Appendix F — Defaulting/Saving/Resetting
Understanding and controlling your scanner’s active, saved, and default settings is critical
to the operation of your scanner.
<A>
<Ard>
<Arp>
<Arc>
<Z>
<Zc>
<Zrd>
<Zrc>
Reset (does not save for power-on)
Reset and recall Microscan defaults
Reset and recall power-on parameters
Reset and recall customer default parameters
Save current settings for power-on
Save current settings as customer default parameters
Recall Microscan default parameters and save for power-on
Recall customer default parameters and save for power-on
Power-on Parameters
Power-on parameters (saved by the <Z> command) are saved to NOVRAM and recalled
and loaded into current parameters when power is cycled or the <Arp> command is
issued.
Customer Default Parameters
Customer default parameters (saved by <Zc> command) are the same set of parameters
as power-on but are saved in a different, isolated section of NOVRAM. This can allow a
user to essentially create a backup set of parameters that can be recalled in the event that
the current parameters or power-on parameters have been changed and no longer
desired. It is important to note that a hardware default does not affect these parameters.
For example, a user that inadvertently changed communication settings in power-on
parameters in such a way that they either don't know the settings or don't have the capability to communicate at those settings. By using the hardware default to default the
power-on settings to the known Microscan default, the user can then recall their previously
customer saved settings with the <Arc> or <Zrc> commands.
MS-3 Laser Scanner User Manual
A-13
Defaulting/Saving/Resetting
Microscan Default Parameters
Microscan default parameters are contained in the firmware that cannot be changed.
Software Default
Microscan default parameters can be recalled (loaded into current settings) with <Ard>
command or recalled and saved for power-on with the <Zrd> command.
Hardware Default
If a software default reset is not possible, it may be necessary to reset the scanner by
shorting (connecting) specific pins. This procedure has the same effect as the <Zrd> software command.
Important: For this reset to occur, this command must be executed within 60 seconds
after a power-on or a reset.
1. Apply power to the scanner.
2. Locate pins 7 and 11 on the host connector.
Caution: Be certain that the correct pins are located. Connecting the wrong pins could
cause serious damage to the unit.
3. Momentarily connect these wires (or pins) and listen for a series of short beeps.
4. Within 3 seconds, connect them again. A longer beep should be heard. If not, repeat
the process.
Default/Reset Definitions
Defaults are original or saved customer settings that can be recalled, either by software
reset <Zrd> or hardware reset.
Also when in multidrop, defaulting might be required if the scanner has been assigned a
polling address and you wish to access the scanner’s menu.
Defaulting the scanner by <Zrd> resets the configuration parameters to Microscan default
values. Defaulting might be necessary if you have make temporary changes, communications between the scanner and another device are lost or interrupted, or you are using
incompatible equipment (for example, a terminal that is set at 38.4K baud communicating
with a scanner that is set at 115.2K baud).1
Resets (“A” commands) affect only the current settings (active memory) and are not
saved for power on or recall.
Active Memory is where the scanner’s active settings are stored during use. These are
not available on power-on unless saved by a “Z” command.
1. There are no menu options or host commands for resetting the configuration program.
A-14
MS-3 Laser Scanner User Manual
Appendices
Appendix G — Symbol Configuration
You can configure your scanner by presenting Code 128 symbols that the FIS-0003 Laser
Scanner responds to as serial commands.
Note: Your scanner does not need to be enabled for Code 128 in order to enter symbol
configuration.
Entering Symbol Configuration
The symbol used to enter configuration is the 7-character code 128 symbol shown below.
It is not required that the scanner be configured to read code 128 symbols to read this start
symbol or the following configuration symbols.
To setup for symbol configuration:
1. Put the scanner in a read cycle mode.
2. Place a special Code 128 configuration start symbol in the scanner’s field of view.
Use this symbol or one that you have created yourself.
If the scanner is able to read the start symbol, it will begin to beep and the performance LEDs
will be activated.
3. When the scanner starts to beep, remove the configuration symbol from the scanner’s field of view.
The beeping will end and the scanner will be in the configuration mode.
During the configuration mode the LEDs will emit a side-to-side pattern to let you know
you are currently ready to configure.
You can create your own start symbol by encoding the following in Code 128:
FNC4 <_CFG>.
MS-3 Laser Scanner User Manual
A-15
Symbol Configuration
Using Configuration Symbols
Once in symbol configuration mode, serial command data encoded in Code 128 symbols
is read by the scanner as serial input.
Configuration symbols must meet the following conditions:
1. The only valid configuration symbols are Code 128.
2. Symbol data may contain more than one command, but individual symbols must be
presented one at a time. This is because only the first symbol in a read cycle record
will be used as a possible configuration symbol.A symbol that is presented to the
scanner must be read 25 times consecutively to be used as a valid symbol.
Once this is done the scanner will interpret the symbol data in the same fashion as it interprets serial data.
3. Any valid command may be entered via symbols including operational commands.
Because the data is treated like serial input multiple symbols may be used to represent one
command as long as the symbols are presented individually and in the correct order.
4. Read rate command may also be used to enter read rate from symbol configuration
mode.
5. When in read rate, the scanner will read the symbologies that were enabled prior to
entering the configuration mode. However it will read a “<J>” in code 128 regardless
of current enable/disable state of code 128.
Once the <J> is issued the scanner exit both read rate and symbol configuration. To exit read
rate and remain in symbol configuration, you present the start symbol once again. Symbols
read in read rate will not configure the scanner.
To start a read rate test, scan this symbol:
Exiting Symbol Configuration
There are multiple ways of exiting symbol configuration. The first way is to simply read or
serially enter the “<J>” command. Other ways include any command that executes a software reset. These commands include the save family as well as the reset family e.g. <Z>,
<Zc>, <Zrd>, <Zrc>, <A>, <Arc> and <Ard>. When exiting symbol configuration with the
symbol “<J>,” the scanner will beep in response.
To end the read rate test and the symbol configuration program, scan this symbol:
This will terminate symbol configuration mode. Changes made in configuration will remain
in effect just as would changes made in the menus or by serial commands. A-16
MS-3 Laser Scanner User Manual
Appendices
Appendix H — Object Detector
In a typical operation, a scanner will wait for symbol data only during a triggered read
cycle. A read cycle is initiated by a “trigger” and can be in the form of a serial command
from the host (internal trigger) or a signal from an object detector (external trigger).
When an object detector (also called a sensor, package detector, etc.) is used, it is set up
so that its beam will bounce off the approaching object and the resulting pulse will be sent
to the scanner to begin the read cycle. Typically, a detector is positioned so that it will
detect the presence of an object before its symbol can be read.
An object detector is mounted in almost any position relative to the object as long as (1)
the object passes within range of the detector and (2) direct or reflected light from the
detector does not interfere with the scanner’s reception.
As the item continues to move down the line, its symbol moves into the scanner beam and
is read by the scanner.
Bar-coded Object
Bar-coded Object
Object
Detector
Scanner
Object Detector
MS-3 Laser Scanner User Manual
A-17
Formulas for Number of Decodes
Appendix I — Formulas for Number of Decodes
To ensure reliable scanning, apply a minimum of five decodes to each symbol. Use the formulas below to calculate the number of decodes that your symbol will receive.
If the number of decodes you derive from one of these calculations is less than the minimum for your application, plug in the minimum number of decodes (5) and solve for
another parameter that might be changed, such as scan speed or scans per second.
Note: While the formulas given here solve for the predicted number of decodes, you may
also use the formulas to solve for other parameters that might be changed, such as scan
speed, symbol length, etc.
Single Line Ladder Calculation
For single scan line ladder scanning, use the following formula:
Direction of label travel
⎛ SH
-------- × DR⎞ – 3 = ND (number of decodes) 1
⎝ SS
⎠
Scan Line
SH (Symbol Height) (ladder formula only) is a measurement of the
height of individual bars.
SS (Scan Speed) is the distance per second that a symbol moves
through the scan.
DR (Decode Rate) is the number of decodes per second that a given
symbol receives (as derived from a stationary scan test).
Ladder
Single Scan Line Picket Fence Calculation
For single scan line picket fence scanning
use the following formula:
Direction of label travel
SW – SL -)
⎛ (-------------------------× DR⎞⎠ – 3 = number of complete decodes
⎝
SS
Label
placement
area
Scan line
Picket Fence
1. The -3 component in the formula is included to allow for AGC acquisition, an incomplete first scan, and an
incomplete last scan. This applies only if the number inside the parentheses equals 4 or more. If the number
equals 3, then only subtract 2 to derive 1 good scan.
A-18
MS-3 Laser Scanner User Manual
Appendices
Raster Picket Fence Calculation
For raster picket fence scanning, the number of decodes
(ND) that can be applied to a given symbol can be calculated once the sweep rate (SR) is known.
Direction of symbol travel
Sweep Rate (SR)
Sweep rate is the number of raster sweeps (up or down)
that occur per second and can be set in ESP. Since the
sweep rate cannot exceed 30 you first need to ensure
Raster pattern
that your application can achieve this by solving for
sweep rate. The sweep rate should generally be set as
Raster
low as possible in order to maximize the number of
Picket
Fence
scans on a given symbol.
1
The formula for determining Sweep Rate (SR) is as follows:
2 × SS SR = -------------------------( SW – SL )
SR = Sweep Rate, the number of passes, up or down, that are described by the arc of the raster
mirror.
SS = Scan Speed, the distance per second that a symbol moves through the scan.
SW = Scan Width, the width across the scan beam, at a given distance from the scanner, in which a
symbol can be read (picket fence formula only).
SL = Symbol Length, the length of the longest printed symbol to be read plus the length of the quiet
zones (picket fence formula only).
Example:
SW = 5
SS = 2 inches per second
SL = 1
2×2
SR = ---------------- = 1
(5 – 1)
Important: The maximum sweep rate that your can set the scanner to is 80. If your solution is greater than 80, you must change another parameter such as scan speed, etc. and
recalculate.
Since SR can only be entered into the software as whole numbers, round off fractions of
SR to the next higher number, for example enter 0.4 as 1 and 3.5 as 4.
In setting up the scanner, raster height depends on the raster arc and the symbol distance
(range) from the scanner. Both the top offset and bottom offsets can be adjusted independently in 255 increments and the resulting arc can vary from 0° to 30°.
1. The number 2 in the SR formula ensures that each symbol receives two full raster sweeps.
MS-3 Laser Scanner User Manual
A-19
Formulas for Number of Decodes
Angled Picket Fence Calculation
The number of complete scans for angled picket fence is
calculated the same as that for picket fence, with the
exception that the scan width is shortened in proportion
to scan tilt.
Direction of symbol travel
Scan Line
Angled Picket Fence
Improving the Number of Decodes
After changing any of the parameters described in this section, recalculate the number of
decodes.
Scan Speed
Scan speed is a function of motor speed and is adjustable. A slower scan speed may allow
greater symbol range and/or higher decode rates, but at the cost of fewer scans per symbol.
Applies to both picket fence and ladder oriented symbols. If your application allows it, slowing
scan speed (the time in seconds that a symbol is fully within the scan width of the scanner) is
an effective way to increase the number of decodes.
Range
Adjusting the symbol’s range, if possible, is one of the quickest and most effective ways to
improve decode rates. However, in some applications you may need to select a less than
optimum range, or one that is beyond the fringes of the ranges.
Scan Width
Increasing scan width will increase the number of scans in a picket fence oriented application. Scan width is linked with scan range and changing one will usually require a change
in the other.
Symbol Dimensions, Symbol Density, and Symbol Ratio
Not usually an option in most applications, but changes to symbol parameters can affect
number of decodes calculations and possibly decode rates.
If your application allows it, shortening the length of a picket fence symbol means the symbol will be in the scan range longer and hence receive a greater number of scans. Increasing the height of a ladder symbol means it will receive more scans. Changing symbol
density and/or symbol ratio is another way ranges, decode rates, etc. can be altered.
A-20
MS-3 Laser Scanner User Manual
Appendices
Appendix J — Operational Tips
Do:
• Check inputs (scan speed, length, height, etc.) to ensure the desired number of decodes
per symbol.
• Connect scanner to host before connecting power to the scanner; disconnect power
before disconnecting the host from the scanner.
• For optimum decodes, mount scanner so that your symbols pass through the center of
the depth-of-field (minimum/maximum range). You find the center by moving your symbol in and out during a read rate test.
• Avoid excessive tilt, pitch, and skew of the symbol.
• Check the symbol for readability by doing a decode rate test. If there is any question
about the symbol's readability, contact your Microscan representative.
• After changing any parameter that might affect decode rate, repeat decode rate test.
• Clean the scanner window with a clean, dry Q-tip or cotton cloth on a regular basis.
Do Not:
•
•
•
•
•
Aim the scanner into direct light or sunlight.
Aim the scanner into an external object detector or other light-emitting device.
Obstruct the scanner window with mounting hardware or other objects.
Connect chassis of scanner and host to different ground potentials.
Operate the scanner in excessive temperature environments.
MS-3 Laser Scanner User Manual
A-21
Interface Standards
Appendix K — Interface Standards
Interface Standards, established by the Electronic Industries Association (EIA), specify
such things as the signaling voltage levels, maximum cable lengths, and number of drivers. With Microscan devices, selection of interface is made by pin assignment and, in the
case of the host communications, by software switching between RS232 and RS422.
Microscan devices use RS232, RS422, and RS485 multidrop.
RS232
RS232 defines an interface between two devices, such as the scanner and host. It differs
from the other interfaces by dedicating individual pins to specific functions and by requiring
both devices to share a common ground line. Since both device chassis are connected to
a common ground, a ground loop potential and the possibility of noise interference exists;
therefore, cable lengths are limited to a maximum of 50 feet (19.7m). Despite being the
most limited, this interface is used frequently because of the large installed base of RS232
equipment.
RS422
RS422, unlike RS232, measures signals deferentially; that is, the receiver looks at the
potentials between the two receive (or transmit) wires rather than the potential between
signal and ground. As a result, cables, if shielded, can be up to 4000 feet (1219m) in
length. Like RS232, RS422 communication is designed for only two devices on a single
line and must have a common ground. It can be used wherever RS232 is used.
RS485
RS485, like RS422, can transmit up to 4000 feet (1219 m) using differential voltages, but
unlike RS422, its transmitters are turned off until a request for data is received from the
host. RS485 is used exclusively in multidrop protocol.
USB
The Universal Serial Bus can connect up to 127 devices to a host at a maximum of 6
megabits per second (Mbps) of bandwidth.
A-22
MS-3 Laser Scanner User Manual
Appendices
Appendix L — Multidrop Communications
This appendix describes the rules for setting up
a concentrator or controller to communicate
with a scanner in standard Multidrop protocol.
The diagram to the right shows a typical Multidrop network in which 1 to 50 scanners can
communicate with a host via an intermediary
device, a concentrator or a controller.
Host
Concentrator
Polled Protocol
Multidrop ONLY
RS-485 Interface
Scanner 01
Scanner 02
Scanner 03
Configure Your Scanner for Multidrop
1. With the scanner connected to the host, Retrieve Reader Settings.
2. Select Multidrop in the Protocol configuration menu.
You will see the following message:
Important: You must change your preamble and postamble characters so that they are not
CR or NULL.
This allows data to move through the concentrator without interference.
3. Click OK.
4. Next, go to Preamble Characters (still in the Protocol menu) and double-click on
Characters.
5. This will open up an ASCII character table. Select any character other than CR. For
example, select LF.
6. Repeat the above for Postamble.
7. Check the multidrop address. Enter a number from 01 to 50.
8. Right-click in the window and select Save to Reader and Send and Save.
9. Your scanner is now in multidrop. From here on, you will need to use the concentrator to relay commands and data between the scanner or scanners and the host.
10. Next, go to “Connect to Reader via the Concentrator” on the next page.
MS-3 Laser Scanner User Manual
A-23
Multidrop Communications
Connect to Reader via the Concentrator
You will need a multidrop concentrator and the required power supplies and cabling to
communicate with your scanner(s).
1. From the Communications drop down menu, select Configure Multidrop to bring up the Multidrop Settings dialog.
2. If necessary, change the default address to match the
address of your multidropped scanner and click OK.
If the host serial port is not connected in ESP, you will see
the following popup message:
ESP is not currently connected to the multidrop concentrator. Do you wish to establish a connection now?
3. Click Yes.
You will see a Serial Communication Parameters dialog.
Notice that the Force Connection option is checked. Do
not change this.
4. Select the concentrator’s host port communications settings.
When you click Connect, you will be connecting to your concentrator, which can then relay commands to the scanner whose address was set in the Multidrop Settings dialog.
5. Click Connect.
6. You should see the CONNECTED message in green at the bottom of the window
along with the scanner’s Multidrop address.
7. Click Retrieve Reader Settings to upload scanner’s configuration. If upload fails,
return to the Serial Communication Parameters dialog and make the necessary corrections.
8. Follow the same procedure for connecting other scanners to your
multidrop network.
A-24
MS-3 Laser Scanner User Manual
Appendices
Polling Sequence
Data that is transmitted to the host (symbol data, noread messages, counters, etc.) via
concentrators is solicited by poll requests from the host.
The polling sequence example is by poll address 1E (ASCII hex value for Scanner 02)
and a REQ (request). The scanner responds by first transmitting its own address, 1E,
followed by a STX (start of text) character, and then the data. Next it transmits an ETX
(end of text) character and an LRC (longitudinal redundancy check) character.
If the concentrator (or controller) receives the data from the scanner and is able to validate it
with an LRC calculation, it responds with an ACK (acknowledgment). If the scanner in turn
receives the ACK, the scanner ends this exchange with a RES (reset).
End of Sequence
Start of Sequence
Concentrator
RES 1E REQ
Scanner 02
ACK
1E STX DATA ETX LRC
RES
Polling Sequence
Polling Reset
• If the scanner has no information, it responds to a poll request by transmitting a RES
(reset).
• If the scanner receives a NAK instead of the ACK after transmitting its data string, it will
re-attempt to send the data string up to three times. If the scanner still does not receive
an ACK, it will send a RES (reset) and discard the data in its buffers.
• If the scanner transmits data to the concentrator and the concentrator responds with an
ACK or NAK, but the scanner doesn’t receive the concentrator’s response, the scanner
will timeout and send a REQ to the concentrator and request another response. If after
three retries (the number of times it transmits a REQ to the concentrator) the scanner
receives no response, it ends the transmission with a RES (reset).
MS-3 Laser Scanner User Manual
A-25
Multidrop Communications
Select Sequence
Unlike poll requests, select commands always originate from the host and consist of serial
configuration or operation commands to devices that are configured in Multidrop. The
scanner complies with the command when it is polled during the cycle.
Start of Sequence
Concentrator
End of Sequence
RES 1F REQ
Scanner 02
STX <T>ETX LRC
1F ACK
RES
1F ACK
Polling Sequence
A RES (reset) is the first command in the select sequence. The 1F hex is the select
address associated with Scanner 02 address. It is followed by a REQ (request). The scanner responds with its own select address, 1F hex, and an ACK (acknowledge). The concentrator then transmits an STX (start of text), the data (in this case a <T>), an ETX (end
of text), and an LRC character.
The scanner replies by transmitting its own address, followed by an ACK, acknowledging
receipt of the command. Upon receipt of an ACK, the concentrator concludes the successful exchange with a RES.
In the example above, the scanner only acknowledges a trigger counter request from the
concentrator. It does not respond to the trigger counter request until a subsequent poll. For
example, if the scanner’s trigger count was 12 at the time the trigger counter request was
received, on a subsequent poll it would send 02T/00012. (The 02 at the beginning of the
string is the scanner’s address.)
Select Reset
If the scanner receives bad data from the concentrator, it transmits a SEL (its select
address) and a NAK to the concentrator. The concentrator re-transmits the data up to
three times. The concentrator will end the sequence with a RES (reset) if no ACK is
received.
Multidrop Addresses
Multidrop
Address
01
02
03
04
05
06
A-26
Poll
Character
ASCII
HEX
^\
1C
^^
1E
SP
20
"
22
$
24
&
26
Select
Character
ASCII
HEX
^]
1D
^1F
!
21
#
23
%
25
'
27
Multidrop
Address
26
27
28
29
30
31
Poll
Character
ASCII
HEX
N
4E
P
50
R
52
T
54
V
56
X
58
Select
Character
ASCII
HEX
O
4F
Q
51
S
53
U
55
W
57
Y
59
MS-3 Laser Scanner User Manual
Appendices
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
(
*
,
.
0
2
4
6
8
:
<
>
@
B
D
F
H
J
L
28
2A
2C
2E
30
32
34
36
38
3A
3C
3E
40
42
44
46
48
4A
4C
MS-3 Laser Scanner User Manual
)
+
/
1
3
5
7
9
;
=
?
A
C
E
G
I
K
M
29
2B
2D
2F
31
33
35
37
39
3B
3D
3F
41
43
45
47
49
4B
4D
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Z
\
^
`
b
d
f
h
j
l
n
p
r
t
v
x
z
|
~
5A
5C
5E
60
62
64
66
68
6A
6C
6E
70
72
74
76
78
7A
7C
7E
[
]
_
a
c
e
g
i
k
m
o
q
s
u
w
y
{
}
D
5B
5D
5F
61
63
65
67
69
6B
6D
6F
71
73
75
77
79
7B
7D
7F
A-27
Troubleshooting
Appendix M — Troubleshooting
Symptom
Cause
Solution
Power supply is lower than required voltage.
Use a shorter cable or provide required input
voltage.
Motor won't spin up and Default pin held low at power-up. Boot mode
scan.
enabled.
Missing or faulty Application Code; Boot
mode enabled.
LEDs are flashing but
Boot mode enabled.
MS-3 is not scanning.
The symbology being used in the application
is not enabled in the scanner.
MS-3 is not decoding.
Length field does not match actual length.
Bad cable. Fix or replace cable.
Enter boot mode with power-up and default
pin. Download new Application Code.
Verify Application Code. Release default line
and re-power unit.
Enable the symbology type being used in the
application.
Disable fixed length option or change length
field to match actual symbol length.
Shade bar code read area, especially the
High frequency ambient lighting.
scan path between the unit and the bar code.
Try aggressive ratios. (Tight ratios decode
high-quality symbols. Standard ratios
Poor bar code printing, ratio errors, or erroneous decode most symbols. Aggressive ratios
bar widths.
are loosened to allow decoding of poor quality
symbols. See Symbol Ratio Mode for more
information.) Improve bar code print quality.
Re-position symbol or scanner for optimal
Symbol is not in the focal area of laser.
focus position.
Try aggressive ratios. (Tight ratios decode
high-quality symbols. Standard ratios
decode most symbols. Aggressive ratios
Poor decode performance. Excessive curvature of symbol.
are loosened to allow decoding of poor quality
symbols. See Symbol Ratio Mode for more
information.)
Gain value not optimal.
Try autocalibration.
Other objects in field of view are misleading Try to eliminate shiny objects from the field of
the gain control system.
view.
Scan rate is too fast, exceeding MS-3’s video Slow down the scan rate.
bandwidth.
Do not violate the 10x rule for quiet zone;
Quiet zone not large enough.
enable narrow quiet zone setting.
Clean window with non-abrasive cleaner and
Contaminants on window.
wiping cloth; refer to the User Manual for
cleaning instructions.
Remove shiny objects that may enter the
A
preceding
bright
object
is
increasing
recovery
Reads well with static
scanner’s field of view before the symbol
bar codes, but once bar time for gain control.
enters the field of view. Try fixed gain.
codes are in motion
Remove shiny objects that may enter the
there are many No
Specular reflection preventing AGC stability. scanner’s field of view before the symbol
Reads.
enters the field of view. Try fixed gain.
Try aggressive ratios. (Tight ratios decode
high-quality symbols. Standard ratios
Different segments of
decode most symbols. Aggressive ratios
Poor
printing,
ratio
errors,
or
erroneous
bar
bar code decode 100%;
are loosened to allow decoding of poor quality
widths.
others decode 0%.
symbols. See Symbol Ratio Mode for more
information.) Correct printing variations and
improve bar code print quality.
MS-3 has defaulted settings. No longer set to Connect using default settings instead of
user communication settings.
user settings.
Cannot communicate
with MS-3.
Unit is in boot mode and communication settings Set communication parameters to 57.6K, 8, 1,
are not the same as application mode.
None. Exit boot mode.
A-28
MS-3 Laser Scanner User Manual
Appendices
Laser failing.
Motor failing.
Decode performance
was good but is now
bad.
Return for service.
Return for service.
Re-position scanner or symbol. If re-positioning
Focus shifted.
does not help, return for service.
Try aggressive ratios. (Tight ratios decode
high-quality symbols. Standard ratios
Symbology has changed, or there are differences decode most symbols. Aggressive ratios
in printing or bar width.
are loosened to allow decoding of poor quality
symbols. See Symbol Ratio Mode for more
information.) Improve bar code print quality.
Symbol position has moved from initial testing
Re-position scanner or symbol.
position.
MS-3 LED Indicators
Read
Test
Mode
OFF
ON
ON
ON
ON
ON
Read
Test
Mode
ON
ON
ON
ON
ON
ON
Boot
Mode
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
BLINK
ON
ON
ON
ON
ON
ON
BLINK
BLINK
BLINK
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
No power.
Control
Mode
In ESP Mode.
Control
Mode
In the onboard menu system.
81% - 100% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
61% - 80% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
Control
Mode
In Boot Mode or In Boot Mode and downloading firmware.
Read
Test
Mode
OFF
OFF
ON
ON
ON
ON
In ESP Mode getting digital bar code scan.
Read
Test
Mode
OFF
OFF
OFF
ON
ON
ON
41% - 60% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
MS-3 Laser Scanner User Manual
Read
Test
Mode
OFF
OFF
OFF
OFF
ON
ON
21% - 40% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
Unit is idle; last read cycke was a Good Read.
Read
Test
Mode
OFF
OFF
OFF
OFF
OFF
ON
1% - 20% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
Normal
Read
Modes
ON
OFF
OFF
OFF
OFF
ON
0% <Cp> or <C> the % of scans to decodes is presented as a percentage and shown by the LEDs.
Normal
Read
Modes
OFF
ON
OFF
OFF
OFF
ON
Unit is in an active read mode.
100%
80%
60%
40%
20%
PWR
Normal
Read
Modes
OFF
OFF
OFF
OFF
OFF
ON
Unit has not run a read cycle yet or did run a read cycle but did not have a Good Read result.
LEDs
A-29
Glossary of Terms
Appendix N — Glossary of Terms
AGC — See Automatic Gain Control.
Analog — A smooth, continuous voltage or current signal or function whose magnitude
(value) is the information.
Automatic Gain Control (AGC) — Adjustment to signal strength that seeks to maintain a
constant level regardless of the distance between a scanner and symbol.
Baud Rate — The number of discrete signal events per second; bits per second.
Check Character — A Modulus 43 or Modulus 10 character that is added to encoded
symbol data for additional data integrity.
Connector — A plug or socket on a device or cable providing in/out connectivity for various
circuits and pins.
Concentrator — Intermediary device that relays data from scanners to a host and commands
from the host to the scanners or other devices.
Counter — Memory space allocated to keep track of scanner events.
Daisy Chain — Linkage of primary and secondary scanners allowing data to be sent to
the host.
Decode — A good read. The successful interpretation and output of the information
encoded in a symbol.
Default — Restores non-volatile or flash memory settings, initializes serial commands,
and resets all counters.
Delimited — A delimited command or field is bracketed by predefined characters.
Decode Rate — The number of good reads per second ahieved by a scanner.
Discrete I/O — Inputs and outputs characterized by discrete signal transitions from one
voltage level to another so that digital switching can occur.
End of Read Cycle — The time or condition at which the scanner stops expecting symbol
information to decode.
External Edge — Allows a read cycle to be initiated by a trigger signal from an object
detector when it detects the appearance of an object. The read cycle ends with a good
read, a timeout, or a new trigger.
External Level — Allows a read cycle to be initiated by a trigger signal from a photo
sensor. The read cycle ends when the object moves out of the detector’s range.
Firmware — Software hard-coded in non-volatile memory and closely tied to specific
pieces of hardware.
Fixed Symbol Length — Increases data integrity by ensuring that only one symbol length
will be accepted.
Full Duplex — A communication system in which signals can travel simultaneously
between devices.
Gain — Optimal signal strength.
Good Read — A decode. The successful scanning and decoding of the information
encoded in a symbol.
A-30
MS-3 Laser Scanner User Manual
Appendices
Half Duplex — A communication system in which signals can travel between devices in
both directions, but not simultaneously.
Host — A computer, PLC, or other device that is used to execute commands and process
data and discrete signals.
Initialize — Implement serial configuration commands into the scanner’s active memory.
Input — A channel or communication line. Decoded data or a discrete signal that is
received by a device.
Ladder Orientation — A linear symbol orientation in which the bars are parallel to the
symbol’s direction of travel.
LED — See Light-Emitting Diode.
Light-Emitting Diode (LED) — A semiconductor device that emits light when conducting
current.
Multidrop — A communication protocol for networking two or more scanners or other
devices with a concentrator (or controller) and characterized by the use of individual
device addresses and the RS-485 standard.
Noise — The same as static in a phone line or “snow” in a television picture, noise is any
unwanted electrical signal that interferes with the symbol data being decoded and transmitted
by the scanner.
Normally Closed — A discrete output state that is only active when open.
Normally Open — A discrete output state that is only active when closed.
Output — A channel or communication line. Data or discrete signals that are transmitted
or displayed by a device.
Parity — An error detection routine in which one data bit in each character is set to 1 or 0
so that the total number of 1 bits in the data field is even or odd.
Picket Fence Orientation — A linear symbol orientation in which the bars are perpendicular
to the symbol’s direction of travel.
Pitch — Rotation of a symbol around an axis parallel to the symbol length on the substrate.
See the illustration below.
Bar code
label
axis
Skew
Symbol
Tilt
axis
Tilt
Scanner
Scanner Scan line
Pitch
Pitch
axis
PLC — See Programmable Logic Controller.
Port — Logical circuit for data entry and exit. (One or more ports may be included within a
single connector.)
MS-3 Laser Scanner User Manual
A-31
Glossary of Terms
Programmable Logic Controller (PLC) — An electronic device used in industrial automation
environments such as factory assembly lines and automotive manufacturing facilities.
Protocol — The rules for communication between devices, providing a means to control
the orderly flow of information between linked devices.
Read Cycle — A programmed period of time or condition during which a scanner will accept
symbol input.
Skew — Rotation of a symbol around an axis parallel to the symbol height on the substrate.
See the illustration under the definition of Pitch.
Substrate — The surface upon which a symbol is printed, stamped, or etched.
Symbol Transitions — The transition of bars and spaces on a symbol, used to detect the
presence of a symbol on an object.
Symbology — A symbol type, such as Code 39 or Code 128, with special rules to define
the widths and positions of bars and spaces to represent specific numeric or alphanumeric
information.
Tilt — Rotation of a symbol around an axis perpendicular to the substrate. See the illustration
under the definition of Pitch.
Trigger — A signal, transition, or character string that initiates a read cycle.
Very Large-Scale Integration (VLSI) — The creation of integrated circuits by combining
thousands of transistor-based circuits on a single chip.
VLSI — See Very Large-Scale Integration.
A-32
MS-3 Laser Scanner User Manual
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