MS6720 Hand-Held Laser Scanner Installation and User’s Guide MLPN 2368 Printed in USA October 1998
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scanner and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operational Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A Design Specifications 28, 29 Appendix B Default Settings 30 - 33 Appendix C Pin Assignments 34 - 36 Appendix D Warranty and Disclaimer 37, 38 Appendix E Notices 39, 40 Appendix F Patents 41 Index 42 - 44 iv
Introduction The MS6720 is the first laser bar code scanner truly to bridge the gap between omnidirectional fixed projection and hand-held scanners. It incorporates fixed projection performance and our patented 20-line scan pattern into a comfortable, ergonomic styling of our popular hand-helds. With this design, Metrologic has engineered a scanner that transcends any other on the market today.
Scanner and Accessories The following is a list of the parts included in the MS6720 kit.
Quick Start 1.) Plug in the scanner. Both LEDs come on together along with the beep-the green LED only flashes. 2.) The scanner is shipped from the factory programmed with default settings. To configure the MS6720 scanner to meet the host system’s specific needs, refer to the Programming Guide (MLPN 2186) for instructions on how to enter the program mode and to select the appropriate bar codes. Note: Any time the Load Defaults bar code is scanned the MS6720 is configured for an RS-232 interface.
Operational Test If the scanner is to receive power from an external power supply, test the scanner before it is connected to the host system. Keyboard Wedge Scanners: 1. Plug one end of the coil cable into the keyboard connector on the PC. Then plug the keyboard connector into the other end of the coil cable. Plug in the external transformer. 2. Check the AC input requirements of the power supply to make sure the voltage matches the AC outlet. Connect AC power to the transformer. 3.
Scanner Installation: Powered by External Power Supply To maintain compliance with applicable standards, all circuits connected to the scanner must meet the requirements for SELV (Safety Extra Low Voltage) according to EN 60950. 1. Turn off the host system. 2. If using a communication cable, connect the cable to the correct port on the host device and the MCA (Metrologic Connector Adaptor). If the host device is an IBM compatible PC with a male 9-pin serial port, connect the MCA to the port. 3.
Scanner Installation: Powered by Host Device If the host system supplies +5VDC power to the scanner, reposition the internal jumper within the MCA (Metrologic Connector Adaptor) before connecting the scanner to the host device. In addition, plug the 4 position ground jumper into the power supply connector located on the side of the MCA. 1. Make sure the MCA is not connected to the scanner, communication cable or host and unfasten the case. MCA 2.
Scanner Installation to the PC for the Scanner with Built-in PC Keyboard Wedge Interface To maintain compliance with applicable standards, all circuits connected to the scanner must meet the requirements for SELV (Safety Extra Low Voltage) according to EN 60950. 1. The “Y” coil cable is terminated with a 5-pin DIN female connector on one end, and a 6-pin mini DIN male on the other.
The MS6720 Stand The stand for the MS6720 is ergonomic and application friendly. The mounting was designed to provide an adequate distance for scanning between the scanner face and the counter top at all times. When fully tilted, the face of the scanner remains a full five inches from the counter. The stand comes preassembled so it can be attached to the work surface with minimum effort (also included is the wall mount clip).
Scanner Parts Green and Red LED When the red LED is on, this indicates that the laser is on. When the green LED flashes on, the scanner has read a bar code successfully. When the green light turns off, communication to the host is complete. The green LED blinks while the scanner is waking up from an IR sensor timeout. The LED’s are also used as diagnostic indicators and mode indicators. Refer to pages 10-12 for details. º Output Window Laser light emits from this aperture.
Audible Indicators When the MS6720 scanner is in operation, it provides audible feedback. These sounds indicate the status of the scan and scanner. Four settings are available for the tone of the beep. To change the tone, refer to the Programming Guide section: Beeper Tones. One Beep * When the scanner first receives power, both LEDs come on together along with the beep-the green LED only flashes. After the scanner performs this startup sequence, the scanner is ready to scan.
Failure Modes Flashing Red and One Razzberry Tone This indicates the scanner has experienced a laser subsystem failure. Return the unit for repair at an authorized service center. Flashing Red and Green and Two Razzberry Tones This indicates the scanner has experienced a motor failure. Return the unit for repair at an authorized service center. Continuous Razzberry Tone with both LEDs off If, upon power up, the scanner emits a continuous razzberry tone, then the scanner has an electronic failure.
Visual Indicators There are a red LED and a green LED on the scanner. When the scanner is on, the flashing or stationary activity of the LEDs indicates the status of the scan and scan-ner. No Red or Green LED There are two reasons why the LEDs will not be illuminated: 1.) If the scanner is receiving power and the LEDs are not on, then the scanner has been dormant for a specified time and the laser has turned off. To reactivate the unit, pass an object through the scan field. 2.
Label Each scanner has a label located on the bottom of the unit. This label contains information such as the model number, date of manufacture, serial number, and approvals. This label also notes that the device is a CDRH Class IIa laser product.
Depth of Field Specifications Normal Depth of Field 14
Short Depth of Field 15
Extended Depth of Field 16
Optional Depth of Field 17
Automatic Turn-On Specifications (IR Sensor) Normal Depth of Field Short Depth of Field Note: 18 Depth of Field based on 13mil (.013") minimum element width, Turn On Range is nominal; small variances do NOT indicate a malfunction.
Scan Pattern Specifics Projection Axis The scan pattern of the MS6720 exits straight out of the scanner. This feature was purposefully designed to provide pointing efficiency in the hand held mode and instinctive positioning in the fixed presentation mode. Omnidirectional Scan Volume Note: The above scan volume shows omnidirectional volume. This volume does not reflect the entire length of all the laser lines. (Please refer to the Cross-Sectional Pattern in this section, page 20).
Cross-Sectional Scan Pattern 20
Maintenance Smudges and dirt can interfere with the proper scanning of a bar code. Therefore, the output window will need occasional cleaning. 1. Spray glass cleaner onto lint free, non-abrasive cleaning cloth. 2. Gently wipe the scanner window.
The following guide is for reference purposes only. Contact a Metrologic representative at 1-800-ID-METRO or 1-800-436-3876 to preserve the limited warranty terms. Pg. 37. All Interfaces MS6720 Troubleshooting Guide SYMPTOMS No LEDS, beep or motor spin POSSIBLE CAUSE(S) No power at power up SOLUTION Check transformer, outlet and power strip NOTE: If it’s a direct connect scanner, the problem could be inadequate power being supplied to the scanner.
All Interfaces continued SYMPTOMS Unit goes to sleep and does not wake up POSSIBLE CAUSE(S) SOLUTION IR sensor used to wake up the scanner is always sensing an object Adjust scanner positioning so that the IR senses an object when a bar code is presented. For example; point to the ceiling and then back to the object.
SYMPTOMS The unit powers up properly, lasers come on, but the unit does not scan and does not beep when a bar code is presented POSSIBLE CAUSE(S)/SOLUTION(S) Improper settings can be the cause for a scanner not to scan. The following would be typical examples: 1. Scanning a particular symbology that is not enabled. (UPC/EAN, Code 39, Interleaved 2 of 5, Code 93, Code 128 and Codabar are enabled by default.) Verify that the type of bar code being read has been selected. 2.
Keyboard Wedge Only SYMPTOMS POSSIBLE CAUSE(S) SOLUTION Unit scans the bar code but there is no data Configuration is not correct Make sure the scanner is configured for keyboard wedge mode - Section F of the ScanSelect Guide (MLPN 2186) Unit scans but data is not correct Configuration is not correct Make sure that the proper PC type AT, PS2, XT is selected verify correct country code and data formatting are selected Adjust inter character delay Unit is transmitting each character twice Configurat
RS-232 only SYMPTOMS Power-up OK Scans OK Does not communicate properly to the host POSSIBLE CAUSE(S) Com port at the host not working or not configured properly Cable not connected to the proper com port SOLUTION Check to make sure the baud rate and parity of the scanner and the communication port match and the program is looking for “RS-232" data.
Applications and Protocols The model number on each scanner includes the scanner number and communications protocol. Scanner Version Identifier 6720 6720 6720 6720 6720 9 11 14 15 47 Communication Protocol(s) OCIA (OCIA) IBM (46XX) RS-232 (232) Light Pen Emulation (LTPN) Keyboard Wedge (KBW) The MS6720 Hand-Held Laser Scanner with Built-in PC Keyboard Wedge Interface is designed to be used for keyboard emulation only.
Appendix A Design Specifications Application: Max. Radiant Power: Light Source: CDRH: CE: EMI: Fixed Projection/Hand-Held Laser Bar Code Scanner 0.
Operational Depth of Field: Scan Speed: Scan Pattern: Scan Lines: Min Bar Width: Indicators (LED): Beeper Operation: Maintenance: Decode Capability: System Interfaces: Print Contrast: Roll, Pitch, Yaw: 0" - 4"; 0"- 8" (programmable) 0 - 101.6mm; 0 - 203.2mm 1000 scan lines per second 5 fields of 4 parallel lines 20 5.
Appendix B Default Settings Many functions of the scanner can be "programmed" - that is, enabled or disabled. The scanner is shipped from the factory programmed to a set of default conditions. The default parameter of the scanner has an asterisk ( * ) in the charts on the following pages. If an asterisk is not in the default column then the default setting is Off or Disabled. Every communication does not support every parameter.
Parameter DTS/NIXDORF Default OCIA * T NCR F T NCR S T RS-232* Ligh t Pen IBM 46XX KBW T Poll Light Pen Source Beeper Tone Normal T T T T T Beep/Transmit Sequence Before Transmit T T T T T Communication Timeout None T T T T T Razzberry Tone on Timeout T T T T T Three Beeps on Timeout T T T T T * T T T T T 10 Min.
Parameter Default OCIA RS-232* Transmit Mod 10/ITF T Transmit MSI-Plessey Check Characters T KBW T T T T T T Space T Baud Rate 9600 T T 8 Data Bits 7 Data Bits T * Transmit Sanyo ID Characters T T Nixdorf ID T T Shell Schulmberger Formatting T T UPC Prefix T T UPC Suffix T T Transmit AIM ID Characters T T STX Prefix T T ETX Suffix T T Carriage Return * T T Line Feed * T T Tab Prefix T T Tab Suffix T T "DE" Disable Command T "FL" Laser Enable Com
Parameter Default 977 (2 digit) Supplemental Requirement OCIA RS-232* Ligh t Pen IBM 46XX KBW T T T T T Supplements are not Required * T T T T T Two Digit Redundancy * T T T T T Five Digit Redundancy T T T T T 200 msec to Find Supplement T T T T T T T T T T T T as code 39 T T 100 msec to Find Supplement Coupon Code 128 * 33
Appendix C Pin Assignments Cable Pin Assignments for the Coil Cable The MS6720 scanners are terminated to a 10 position shielded modular connector. All of the coil cables (MLPN 44530) for the MS6720 scanner are terminated the same. The difference between versions is the end of the cable going into the scanner. This connector plugs into different “J” positions on various computer/interface boards. Since each computer/interface board is different, the output signals are different.
Pin Assignments for the MCA951 (DEC9S) Located on the MCA is a 9-pin female D-type connector used to connect the MCA to the host device. The output signals on the 9-pin host end of the MCA are dependent upon which version of the scanner that is being used.
Pin Assignments for the 5-pin DIN and 6-pin mini-DIN MS6720 HandHeld Laser Scanner with Built-in PC Keyboard Wedge Interface The coil cable is terminated with a 5-pin DIN female connector on one end, and a 6-pin mini DIN male on the other. Metrologic will supply an adaptor cable with a 5-pin DIN male connector on one end and a 6-pin mini DIN female connector on the other.
Appendix D Warranty and Disclaimer Limited Warranty Products manufactured by Metrologic have a 2-year limited warranty from date of manufacture.
Disclaimer Metrologic Instruments, Inc. and the author or authors make no claims or warranties with respect to the contents or accuracy of this publication, or the product it describes, including any warranties of fitness or merchantability for a particular purpose. Any stated or expressed warranties are in lieu of all obligations or liability for any damages, whether special, indirect, or consequential, arising out of or in connection with the use of this publication or the product it describes.
Appendix E Notices Notice This equipment has been tested and found to comply with limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Anmerkung Nach Überprüfung dieses Geräts wurde festgestellt, daß es den Grenzwerten für Digitalgeräte der Klasse A gemäß Teil 15 der Richtlinien der US-amerikanischen Bundesbehörde für das Fernmeldewesen entspricht. Diese Grenzwerte wurden festgelegt, um einen angemessenen Schutz gegen schädliche Auswirkungen bei Einsatz des Geräts in einer Ladenumgebung zu gewähren.
Appendix F Patents “Patent Information This METROLOGIC product may be covered by one or more of the following U.S. Patents: U.S. Patent No.
Index A Accessories 2 AC input/outlet 2, 4, 5, 7 Adaptor cable 2, 7, 36 5M 6F 7 MCA 2, 4-6 Application 2, 27, 28, 35 Approvals 13 Assignments pin 34-36 Audible indicators 10 Authorized service center 37 Autodiscriminates 29 Automatic turn-on specifications Normal DOF 18 Short DOF 18 Axis projection 19 B Bar code 3, 10, 12, 21, 23-26, 29 Bar width 29 Beep(s) 3-5, 10-12, 22, 24, 29, 31 Beeper operation 29 Built-in PC keyboard wedge interface 4, 7, 27, 36 C Cable adaptor 2, 4, 7, 36 coil 4-7, 28, 34, 36 commun
Installation Interfaces 5-7 22, 24, 29 J J positions 34 JP1 6 Jumper 2, 6, 35 K Keyboard Type(s) 27 Keyboard Wedge (KBW) 2-4, 7, 25-27, 29, 36 L Label 13 LEDs 3-5, 10-12, 22, 24, 29 Light levels 29 Light source 28 List 2 LTPN 27, 34, 35 M Maintenance 21, 29 Manufacturer’s recommendation 7 MCA 2, 4-6, 22, 35 Mechanical 28 Min bar width 29 N Normal depth of field Notices 39, 40 14, 18 O OCIA 2-4, 27, 29-35 Omindirectional scan volume 19 Operating current 28 Operating temperature 29 Operation 4-7 Operation
System interfaces 29 T Termination 34-36 Test 4 Transformers 28 Troubleshooting 22-26 Tones 10-12, 29 Turn-on specifications V Ventilation 29 Version 27, 34, 35 Visual indicators 12 Voltage 4, 5, 7, 28 W Warranty Watt 28 Weight 28 Window 21 44 22, 37 18
