Hand Held Products SV100,SV100HD,SV100C,SV200-1,SV200-2 User Manual

Quick Check® SV Series
Bar Code Scanner/Verifier
User’s Guide
Disclaimer
Hand Held Products, Inc. (“Hand Held Products”) reserves the right to make changes in specifications and other information contained in this document without prior notice, and the reader should in all cases consult Hand Held Products to determine whether any such changes have been made. The information in this publication does not represent a commitment on the part of Hand Held Products.
Hand Held Products shall not be liable for technical or editorial errors or omissions contained herein; nor for inciden tal or consequential damages resulting from the furnishing, performance, or use of this material.
This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior written consent of Hand Held Products.
© 2001-2005 Hand Held Products, Inc. All rights reserved. Web Address: www.handheld.com
Statement of Agency Compliance
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FCC Class B Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio or television technicia n for help.
Caution: Any changes or modifications made to this device that are not expressly approved by Hand Held Products, Inc. may void the user’s authority to operate the equipment.
Note: To maintain compliance with FCC Rules and Regulations, cables
connected to this device must be shielded cables, in which the cable shield wire(s) have been grounded (tied) to the connector shell.
Canadian Notice
This equipment does not exceed the Class B limits for radio noise emissions as described in the Radio Interference Regulations of the Canadian Department of Communications.
Le present appareil numerique n’emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la classe B prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.
The CE mark on the product indicates that the system has been tested to and conforms with the provisions noted within the 89/336/EEC Electromagnetic Compatibility Directive and the 73/23/EEC Low Voltage Directive.
The CE mark on the product indicates that the system has been tested to and conforms with the provisions noted within the 89/336/EEC Electromagnetic Compatibility Directive and the 73/23/EEC Low Voltage Directive.
For further information please contact:
Hand Held Products, Inc. Nijverheidsweg 9 5627 BT Eindhoven The Netherlands
Hand Held Products shall not be liable for use of our product with equipment (i.e., power supplies, personal computers, etc.) that is not CE marked and does not comply with the Low Voltage Directive.
SV Series Use with UL-listed Equipment
The SV Series should be used only with printers, applicators, conveyors, etc. that are UL listed.
Cautions
Never stare directly into the laser beam.
Never stare directly at a reflected image of the laser beam.
Avoid exposure to the laser beam.
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Laser Beam
The laser beam may be on at any time the Power/Sync LED is illuminated.
Table of Contents
Chapter 1 - Quick Check SV Series
Introduction........................................................................... 1-1
SV Series Model Specifications .......................................... 1-2
ScanView Software .............................................................. 1-2
Chapter 2 - Control Panel
Reset Button........................................ ..... .... ......................... 2-1
Turn Off Laser Beam..................................................... 2-1
Perform Calibration........................................................ 2-1
Reset Ports.................................................................... ..2-1
I/O Connector ...................................................................... 2-1
+ 5 VDC Power Input........................................................... 2-2
Sync Inputs ........................................................................... 2-2
Edge Sync Mode............................................................ 2-3
Envelope Sync Mode ..................................................... 2-3
Communication Sync Commands ........................................ 2-4
Output Ports.......................................................................... 2-4
System Displays.................................................................... 2-4
Power/Sync LED............................................................ 2-4
Calibration LED............................................................. 2-4
Read LED....................................................................... 2-5
Indicator LEDs 1 and 2.................................................. 2-5
Chapter 3 - Serial Port Connector
Serial Port Specifications...................................................... 3-1
Serial Port Pin-out................................................................. 3-1
Serial Port Transmission Format.......................................... 3-1
Chapter 4 - ScanView Installation and Setup
Introduction........................................................................... 4-1
System Requirements ........................................................... 4-1
ScanView Software Installation ........................................... 4-1
PC Communication Port Setup............................................. 4-2
i
Software Operation Warnings .............................................. 4-3
Title Bar – Screen Display.................................................... 4-3
Menu Bar – Screen Display.................................................. 4-3
File Menu....................................................................... 4-3
Setup Menu .................................................................... 4-3
Advanced Menu.................... .... ..................................... 4-5
Support Menu................................................................. 4-5
About (Menu Item) ........................................................ 4-5
Speed Button Bar – Screen Display...................................... 4-6
Modes Of Operation............................................................. 4-7
Analysis Screens................................................................... 4-8
Color Coding ...................................................................... 4-11
SVScanner/Verifier Setup Procedure......................... ........ 4-13
Chapter 5 - Scanner Setup
Scanner Positioning.............................................................. 5-1
Bar Code Travel Direction.................................................... 5-2
Bar Code Travel Speed Considerations ......................... 5-2
Picket Fence Direction................................................... 5-3
Picket Fence Bar Code Positioning Specifications:....... 5-3
Ladder Direction ............................................................ 5-3
Setting Ladder Mode Scanning Length Using ScanView
Software ......................................................................... 5-4
Calibration ............................................................................ 5-4
Adjusting Scanner Gain and Offset...................................... 5-5
Chapter 6 - SV Command Language
Introduction........................................................................... 6-1
Data Match Commands – B.................................................. 6-1
Relationship Between ~BC and ~Br Commands ................. 6-5
Diagnostic Commands - D.................................................. 6-5
Hardware Configuration Commands - H............................ 6-6
Label Setup Commands - L.............................................. 6-11
Output Mode Selection Commands - O............................ 6-16
Output Port Setup Commands - P..................................... 6-17
System Control Commands - S ........................................ 6-23
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Output Interface Modes Descriptions................................. 6-24
Mode 00 (~LV00)........................................... ..... .... .....6-24
Mode 01 (~LV01)........................................... ..... .... .....6-25
Mode 02 (~LV02)........................................... ..... .... .....6-27
Mode 03 (~LV03)........................................... ..... .... .....6-30
Mode 12 (~LV12)........................................... ..... .... .....6-30
Mode 16 (~LV16)........................................... ..... .... .....6-33
Mode 17 (~LV17)........................................... ..... .... .....6-36
Mode 18 (~LV18)........................................... ..... .... .....6-39
Mode 19 (~LV19)........................................... ..... .... .....6-43
Chapter 7 - ANSI Parameter Grade Thresholds Chapter 8 - Product Specifications
Scanning Performance–SV Series Model ......................8-2
Scanner Options .............................................................8-2
Sync................................................................................8-2
Outputs ...........................................................................8-2
Symbologies...................................................................8-3
Operation Modes................................................................. ..8-3
Sync Mode – Moving Bar Codes ............................ ..... ..8-3
Sync Mode – Stationary Bar Codes ...............................8-3
No Sync – Free Scan Operation.....................................8-4
Parameters Analyzed ............................................................8-4
Chapter 9 - Maintenance/Customer Support
Maintenance..........................................................................9-1
Cleaning..........................................................................9-1
Product Service and Repair...................................................9-1
Online Product Service and Repair Assistance..............9-2
Technical Assistance.............................................................9-2
Online Technical Assistance..........................................9-2
Limited Warranty..................................................................9-3
iii
iv
1
Quick Check SV Series
Introduction
The Hand Held Products SV Series of Scanner/Verifiers is a universal system component that analyzes linear bar code print quality, checks encoded data, and detects system failures. In its basic mode of operation, an SV unit acts similar to a normal fixed position scanner by automatically decoding bar codes as they pass through its laser beam. Additional capabilities, such as performing bar code verification and operating in synchronous modes make the SV Series unique.
The SV Series combines state-of-the-art digital signal processor (DSP) technology, a proprietary high-speed moving beam laser scanner with unique analog output capability, and flexible I/O and communications capability. This powerful architecture makes an SV unit an economical Quality Assurance tool for practically any bar code print, application, or conveyance system.
The SV Series performs practically every accepted method of bar code verification – ANSI method, traditional method, encoded data format checks, and laser scanning type analyses. These wide-ranging analysis parameters can be used to measure bar code quality and detect failure mechanisms for any print technology.
Bar code quality and encoded data information can be reported th rough the serial communications port for each code analyzed, so accountability for all printed bar codes is possible.
An SV Unit’s I/O consists of five programmable output ports, two programmable display LED’s, and a sync input (with two interface circuit choices). This allows the unit to be used as a local controller for pausing printers, activating lights, gating conveyors, etc.
The SV Series is available in different models. All models operate identically, but the scanner parameters, such as scans per second and focus distance, are different.
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SV Series Model Specifications
Contact Hand Held Products Technical Support for information on custom and other models.
SV100 SV100HD SV100C SV200-1 SV200-2
Analyses/ sec
Scan Width
Focus Distance
X dim (min)
100 100 100 200 200
6” (152mm)
8” (203mm)6”(152mm)
.0067” (.17mm)
4.5” (114mm)
.005” (.127mm)
10.5” (267mm)
15” (381mm)8”(203mm)
.013” (.33mm)
2.5” (63.5mm)
.0067” (.17mm)
1.75” (44mm)
6” (152mm)
.005” (.127mm)
ScanView Software
The recommended setup tool for the SV Series is Hand Held Products’
®
ScanView Windows menus, plus it offers real time monitoring of bar codes being analyzed. This program is available from Hand Held Products and authorized Hand Held Products re-sellers. ScanView can be used to program the SV Series via serial communication using SV download language. Refer to Chapter 6.
-based software. This program makes SV setup simple via
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2
Control Panel
The control panel displays the reset button, I/O connector, system LEDs, and the serial port connector.
Reset Button
The Reset button is multifunctional. It may be used to turn off the laser beam, perform calibration, and reset the ports.
Turn Off Laser Beam
The laser beam may be turned off (therefore turning off the SV unit’s operation) by holding down the Reset button for a few seconds until the beam turns off. Pressing the Reset button again will begin normal operation.
Note: There are some modes of operation when the laser beam is on only
during specific scanning times. (See the ~SA command (page 6-23) in
Chapter 6, SV Command Language .) Using the Reset Button for turning
off the system is not recommended in these modes.
Perform Calibration
The reset button is used in the calibration procedures. See "Calibration" on
page 5-4 for details.
Reset Ports
Pressing the Reset button will reset ports to their inactive states. This is useful in systems where the SV unit is holding a printer in PAUSE mode and the user desires to clear the pause condition. See "Output Ports" on page 2-4 for details.
I/O Connector
The I/O connector is used for all power and field interconnections. The connector is a DB 15 male. Pin-outs are shown below:
1 - Isolated synchronization input (+) 2 - Isolated synchronization input (-) 3 - GND 4 - Switch synchronization input 5 - Output 1 6 - Output 2 7 - Output 3 8 - Output 4
Quick Check® SV Series User’s Guide 2 - 1
9 - Reserved 10 - Reserved 11 - GND 12 - +5 VDC power in 13 - Power GND 14 - GND 15 - Output 5
+ 5 VDC Power Input
The SV Series requires + 5 Volts DC, +/- 0.25 Volt. Maximum current consumption is 1 amp. The voltage input must be connected to pin 12 and the ground input should be connected to pin 13 on the I/O connector.
The alternate ground pins (3, 11, and 14) may be used for power ground or for connecting the ground(s) of an external device(s) (such as presence sensors) that may be powered from a different source than the verifier power input.
Sync Inputs
Utilizing a sync signal is recommended for all applications using hardware (as opposed to communication) interfaces. (See "SV Command Language" on
page 6-1.) A sync signal is used to synchronize the SV Series to an object, label,
etc. that contains the bar code(s) being analyzed as it passes through the laser beam. The SV Series should be programmed for the number of bar codes expected per sync interval. This ensures a robust system that can report all undetectable bar codes due to printer failure, missing labels, etc., along with quality and data information on bar codes that are fully or partially decoded.
Two hardware sync inputs are available. Pin 4 is designed to be used with TTL or open collector inputs. Pins 1 and 2 form a ground isolated input designed to be used with systems that need separate grounds than the verifier and/or output a higher voltage level than TTL.
Sync inputs are also available via serial communications. Hardware sync operation is very flexible due to programmable options. Two
sync modes, edge and envelope, are available. Signal input polarity is also user programmable.
Please see "SV Command Language" on page 6-1 for more information on the use of these sync modes.
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Edge Sync Mode
This mode senses a signal transition level of a sync signal as shown below.
Sync sensed here
The illustration above shows the sync operation of an SV unit programmed to sense the rising edge of a sync signal in edge mode. Each time a rising edge is sensed, the SV unit does the following:
1. It verifies that at least the number of bar codes expected (programmed) since receiving the last sync input have been fully decoded. If not, a No Read condition is internally set for possible reporting through communication or output activation.
2. It begins a new interval, counting the bar codes analyzed until the next sync input is received.
3. A serial communication report is transmitted and an output port is updated per its programmed function each time a bar code is analyzed.
Envelope Sync Mode
This mode senses two transitions (leading and trailing) of the sync signal to determine when to begin and end the period for determining missing bar codes:
Sync period starts here
Sync period ends here
The illustration above shows the sync operation of an SV unit programmed to sense the rising voltage edge as the start of a sync period. The SV unit operates in this mode as follows:
1. Upon receipt of the starting edge of a sync signal, the unit begins counting the bar codes being scanned and analyzed.
2. A serial communication report is transmitted, and an output port is updated per its programmed function each time a bar code is analyzed.
Quick Check® SV Series User’s Guide 2 - 3
3. Counting ceases upon receipt of the trailing edge of a sync signal. The SV Series determines that at least the number of bar codes expected (programmed) during the sync period have been fully decoded. If not, an internal No Read condition is set for possible reporting through communication or output activation.
4. The SV unit then waits for the next leading edge of a sync signal to begin counting codes being scanned and analyzed.
Note: For best performance in either sync mode, mount the SV unit in a location
where a bar code is not in the laser beam when an active edge signal is received.
Communication Sync Commands
Sync operation can be accomplished through serial communications. Please see these commands in the SV Command Language Section – System Control Commands (Chapter 6).
Output Ports
Five programmable output ports are available on I/O connector pins 5, 6, 7, 8, and 15. Each port can be programmed to activate on practically any combination of data and analysis parameters (including “good codes”) analyzed by the SV Series. Port activation logic and parameters are programmed via the output interface modes and associated commands. See the "Output Mode Selection
Commands - O" on page 6-16 for details.
Each port’s output is an open drain FET (field effect transistor). Therefore, the port can either be “ON” (sinking current) or “OFF” (no current/open circuit). The active polarity determines whether the port is “ON” or “OFF” while active. This type of output circuit is used because it is flexible for field connections.
System Displays
Five LEDs are included on the SV Series back panel.
Power/Sync LED
This LED is illuminated green whenever power is applied to the SV Series. Upon receipt of any sync input (hardware or serial communications), the LED blinks yellow for approximately 100 milliseconds.
Calibration LED
This yellow LED indicates calibration status. Please refer to "Calibration" on
page 5-4 for details.
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Read LED
This green LED is illuminated whenever a bar code is being fully decoded.
Indicator LEDs 1 and 2
The two green indicator LEDs are user programmable exactly like the five output ports. Their functions are intended for use as indicators for specific analysis results.
A common example is programming LED 1 to illuminate in latch mode whenever a symbol quality error is detected, while programming LED 2 to illuminate in latch mode whenever a No Read error is detected.
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3
Serial Port Connector
The serial port connector is used to interface the SV Series with devices incorporating RS-232C signal levels. The connector is a DB 9 male.
The serial port can be used for reporting bar code analysis results to a host and receiving SV Command Language instruction from a host.
Serial Port Specifications
Baud rate: programmable between 9600 and 115200 baud
Protocol: Echo back
Data: 8 bit, no parity, 2 stop bits
RS-232C compatible
Serial Port Pin-out
Pin Function
2 Receive Data (RXD) 3 Transmit Data (TXD) 4 Data Terminal Ready (DTR) 5 Ground 7 Request to Send (RTS) 8 Clear to Send (CTS)
Serial Port Transmission Format
The following data transmission format is standard in the SV Series. This is the format used by ScanView software for setup and monitoring of SV Series data. All parameters analyzed for each bar code scanned are transmitted in the following order:
YabbccddeeffgghhiijjkklmmnoopqqrsstttuuvwwwxxxxxxxxyyMNzzzzAAAABBB CCCDDDEEFFGHHIIJJOKLL[bar code data chars]Z Characters designated ‘a’ through ‘O’ represent values for Parameters analyzed,
which are described below. For more parameter details, see "Parameters
Analyzed" on page 8-4.
Quick Check® SV Series User’s Guide 3 - 1
Legal values for each parameter are:
Pos Chars Parameters
CR (carriage return) character indicates
Y11
start of transmit: ctrl-M; 0x0D P=PASS Ref Decode, F=FAIL per Ref
Decode algorithm. P and F are a majority
a21
decision over all scans. 00-9A (0-100); Decodability calc. avg.
b32
over all decoded scans 00-9A; Modulation calc. avg. over all
c52
decoded scans 0-9A; Defects calc. avg. over all decoded
d72
scans 00-9A; Edge Contrast calc. avg. over all
e92
decoded scans 0-9A; Rmin/Rmax calc. avg. over all
f112
decoded scans 00-9A; SymbolContrast calc. avg. over all
g132
decoded scans 00-9A; PCS calc. avg. over all decoded
h152
scans 00-9A; R(white) calc. avg. over all
i172
decoded scans 00-9A; R(black) calc. avg. over all
j192
decoded scans 00-99; Ratio calc. avg. over all decoded
scans. Example: 29 represents a ratio of
k212
2.9 + or - indicating sign of avg. bar deviation
l231
calculation. Bar deviation calculation averaged over all
decoded scans. Units are % of X. Value:
m242
00-9A (signify 0 – 100) + or - indicating sign of avg. min. bar
deviation calculation. + indicates
n261
overprinting, - indicates underprinting. Minimum bar deviation calculation
averaged over all decoded scans. Units
o272
are in % of X. Value: 00-9A (signify 0 –100) + or - indicating sign of avg. max. bar
deviation calculation. + indicates
p291
overprinting, - indicates underprinting.
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Pos Chars Parameters
q302
r321
s332
t353
u382
v401
w413 x448
y* 52 2
M* 54 1
N551
z564
A604
B643
C673 D703
E732
F752
Maximum bar deviation calculation averaged over all decoded scans. Units are in % of X. Value: 00-9A (signify 0 – 100)
One character: Pass(1) or Fail(0). Quiet Zone. This is a programmable decision over all decoded scans.
00-9A; Percent decode calc. avg. over all decoded scans
Absolute X dimension in 0.1 mil (.0001 inch) resolution. Example: a value of 120 represents a 12 mil X dimension.
Overall ANSI method symbol grade (numeric) Ave over all decoded scans. Example: 26 = 2.6
Bar code decoding direction: Forwards(0) or Backwards(1)
000-999; Calculated symbology mod check value, Code 93 mod check C
8 hex digits; Self check value. Two digit number identifies the symbology.
See Symbology Identifier Table on page 3-
4 for details.
Digit: 0 = no error, 3 = symbology mod check error, 4 = subsymbology mod check error, 1, 2, 6 , or 7 = partial decode error
Digit; 0 = no error, 4 = data match field length error, 5 = data match and Decrement error, 6 = data match and increment error, 7 = decrement error, 8 =increment error, 9 = data match error
Four digit number indicates bar code horizontal position.
Four digit number indicates bar code vertical position.
Three digit number shows good scans-on­code. (00-9A)
Three digit number shows total scans-on­code.
000-999; Good Quiet Zones (scans) Two digit number shows Lead QZ. Units:
.1X (00-9A) Two digit number shows Trail QZ. Units:
.1X (00-9A)
Quick Check® SV Series User’s Guide 3 - 3
Pos Chars Parameters
One digit number: ‘0’ (off), ‘1’ (on). Sync
G771 H782
state. Two: Units of X dimension times 10. Two digits; Percent of good global
I802
thresholds. (00-9A) Two digits; Calculated application
J822
checksum value or Code 93 mod check K One digit; indicates the subsymbology
enabled in the y field of ~LFxy command for this symbol. A value of 0 indicates no
O841 K851 L862 [chars] 88 ...
subsymbology check is enabled. One digits; Dummy value for expansion Two digits; Dummy value for expansion Bar code data characters (variable length). LF(line feed) character indicates end of
Zlast1
transmit; ctrl-J; 0x0A.
y* - The symbology identifiers use groups of numbers to identify each symbology. The range of possible values could potentially span 100 for each
symbology category. The Symbology Identifier Table lists each identifier group with the corresponding symbology.
* A no read condition is indicated by all four bytes yy, M and N set to 0 in a transmission. All other data is therefore not valid.
See the ~OS# command (page 6-17) for other transmission data formats.
Symbology Identifier Table
Identifiers Symbology Category
02 I 2 of 5 03 Code 128 04 Code 93 05 Code 3 of 9 06 Codabar 11 UPC-A 15 UPC-A w/add-on (2) 19 UPC-A w/add-on (5) 12 EAN-13 16 EAN-13 w/add-on (2) 20 EAN-13 w/add-on (5)
3 - 4 Quick Check® SV Series User’s Guide
Identifiers Symbology Category
13 EAN-8 17 EAN-8 w/add-on (2) 21 EAN-8 w/add-on (5) 14 UPC-E 18 UPC-E w/add-on (2) 22 UPC-E w/add-on (5)
Quick Check® SV Series User’s Guide 3 - 5
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4
ScanView Installation and Setup
Introduction
ScanView is designed to be a tool used for system setup and real-time bar code monitoring of a Hand Held Products SV type scanner/verifier. It is a Windows 95/ 98/NT/2000 application with facilities for sending commands to the SV scanner/ verifier and receiving the responses. The program can view bar code analysis results and monitor bar code printing/monitoring sessions. In addition, it can gather and display an ANSI method scan reflectance profile for a particular symbol placed in the SV unit’s laser beam scan path. ScanView also streams the analysis results received from the SV scanner/verifier to data files on hard disk that can be reviewed by ScanView at a later time.
Note: This chapter refers to ScanView versions 2.08 and higher. Note: If you are not using ScanView, skip this section and go to Chapter 5.
System Requirements
The following hardware and software is required to use ScanView:
1. A computer running either Windows 95, 98, 2000 or NT.
2. At least one available RS-232 serial port.
3. At least 32 MB RAM.
4. A hard disk with at least 15 MB of free space.
5. A color printer is recommended for users who wish to print analysis results.
ScanView Software Installation
There are two basic steps for installing ScanView. The program must be installed and a communication port must be set up.
Note: Before installing a new version of ScanView make sure to uninstall
previously installed versions. To do this, select the Windows ‘Start’ button; the ‘Settings’ menu item; the ‘Control Panel’ to display the Control Panel Window. Double-click on the ’Add/Remove Programs’ icon. The ‘Add/Remove Programs Properties dialog box appears. Click on the ‘Install/Uninstall’ tab. Scroll the list box to locate the ‘ScanView by Hand Held Products’ item. Select that item and select the ‘Add/Remove’ button
Quick Check® SV Series User’s Guide 4 - 1
and follow the displayed instructions. If the previous version of ScanView was 2.07 or earlier, delete the folder that contains the remaining ScanView files: ‘c:/Program Files/Hand Held Products/ ScanView by Hand Held Products.’
Note: If you are using a CD-ROM, insert the CD and the system walks you
through the set up. If you are using 3.5 diskettes, follow the steps below.
Follow these steps to install ScanView:
1. Insert ScanView Installation Diskette #1 into a floppy disk drive; e.g., drive A.
2. Select the Windows 'Start' button.
3. Select 'Run...' menu item
4. Type A:\setup.exe.
5. Select ‘OK’ and follow the displayed installation instructions.
At the end of the installation procedure cl ick the ‘Finish’ button to close the ScanView Installation program. The ScanView Group Window remains, and it contains the ScanView application icon. The icon label is ‘ScanView.exe’. To place a shortcut to ScanView on the Windows Desktop, hold down the right mouse button while dragging the ScanView icon to an open space on the desktop; then release the right mouse button. A menu will appear. Click on the ‘Create Shortcut(s) Here’ menu item.
Launch the ScanView application by double-clicking on the ScanView icon. (ScanView can also be launched by clicking the Windows ‘Start’ button, then by clicking the ‘Programs’ menu item, and finally, by clicking the ScanView sub­menu item.)
The first time ScanView is launched, a dialog box is displayed that shows all of the communications ports on the PC in a drop-down list. Select the communications port that is connected to the SV scanner/verifier.
The initial screen displayed after successful installation is the Bar Code Analysis Screen. This is shown in page 4-9 and described in the Analysis Screens section.
PC Communication Port Setup
Connect the null-modem cable between the SV unit and the PC serial com port. The PC communication port settings must match the ScanView communication
parameter settings. To match the communications port baud rate to the verifier baud rate, click the Setup item on the application Menu Bar (See "Bar Code
Analysis Screen" on page 4-9). Then click the ‘Match Verifier Baud rat e” me nu
item. ScanView will detect the verifier’s baud rate, and set the port to the detected value.
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Software Operation Warnings
Do not run other Windows applications run concurrently with ScanView. ScanView operation depends on communication and timing issues that can be disrupted when ScanView shares Windows resources with other applications. The resource sharing problem can include conflicts with Windows screensavers. ScanView blocks screensaver operation.
This version of ScanView limits the number of processed bar codes to 30,700 per session. To use ScanView for monitoring larger amounts of bar codes, divide the job into multiple sessions, each less than 30,700 bar codes.
Title Bar – Screen Display
See "Bar Code Analysis Screen" on page 4-9. The area marked B is the title bar. The application Title Bar is located at the top of the application window. It shows the application’s name and the name of the data file that receives the analysis results generated by the verifier. The title changes to identify the current display mode.
The Title Bar also includes the standard Windows Minimize, Maximize and Application Termination buttons.
Menu Bar – Screen Display
See "Bar Code Analysis Screen" on page 4-9. The area marked C is the Menu Bar. The Menu Bar is located just below the Title Bar. It lists five menu categories: File, Setup, Advanced, Support and About.
File Menu
This menu controls data file handling functions, printing and application termination. The format is typical of any Windows type file menu. The files contain the raw data collected from the SV unit. ScanView can re-ope n thes e files to re-display the data at a later time. Note: The Print function prints the current ScanView display on the printer.
Setup Menu
This menu is used to configure the ScanView analysis displays and program the most common SV scanning and communication parameters.
Select Graphs
This item allows the user to select which bar code analysis parameter graphs are displayed on the Bar Code Analysis Screen (see "Bar Code Analysis Screen" on
page 4-9.)
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Select Symbologies
This item allows the user to program the SV unit to enable/disable individual symbology decoders. This is useful for either more secure decoding or sometimes faster throughput if a single symbology type is always being analyzed.
Select Com Port
This item allows the user to select a com port in the host PC.
Change Verifier Baud Rate
This item allows the user to program the SV scanner/verifier baud rate.
Match Verifier Baud Rate
This item detects the baud rate of an SV scanner/verifier; then it changes the ScanView baud rate setting to the detected value. This is useful when using ScanView as a diagnostic tool in a system that is using the SV communication interface. ScanView can easily be inserted in the system without re-programming the SV serial port, therefore when re-connecting the SV unit back to the host, all communication parameters remain compatible with the host.
Static Codes Mode
This item allows the user to set the SV unit in static codes mode.
Moving Codes Mode
This item allows the user to set the SV unit in moving codes mode.
Data Match
This item opens a dialog box that lets the user configure the Data Match feature.
Minimum Codes Per Sync
This item allows the user to program the minimum number of bar codes expected in a sync interval. This parameter is important for detecting No Read conditions when a sync input is being used.
Ladder Mode and Picket Fence Mode
These items allow the user to program the SV unit to scan bar codes traveling in either “picket fence” or “ladder” direction. “Picket fence” orientation is defined as the bar code traveling through the laser beam in the direction of the height of its bars. “Ladder” orientation is defined as the bar code traveling through the laser beam in the direction of the beam path.
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Note: In cases where the SV is scanning stationary bar codes, the “picket fence”
direction must be used.
Advanced Menu
This menu is an extension of the Setup Menu, providing less commonly used, but useful SV system features.
Toggle Display Updating
This item enables/disables display updates in real time. Disallowing updates is useful to allow ScanView to keep up with a high throughput application.
Toggle Additional Results
This item enables/disables additional analysis parameters to be displayed on the Bottom Panel of the Bar Code Analysis Screen. The additional parameters are intended for debug use only while working with Hand Held Products’ Technical Support.
Download New Firmware
This item is used for updating the firmware revision level in an SV scanner/ verifier.
Port Configuration
This item lets the user configure the SV unit output port activation threshold settings.
Initialize the Com Port
In the unlikely event that some failure causes the Com Port to lock up, this feature can be used to unlock the port.
Support Menu
This menu provides special diagnostic displays that are intended to be used only while working with Hand Held Products’ Application Support.
About (Menu Item)
This item lists information about the origin of ScanView, the version number of this copy (it also queries the SV unit for its firmware version number) and it shows the copyright warning.
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Speed Button Bar – Screen Display
See "Bar Code Analysis Screen" on page 4-9. The buttons on this bar give quick access to various application modes and features.
All Data Points, Last 64 Data Points
, Toggles the “all data points” mode and the ‘last 64 data points” mode. In the ‘last 64 data points” mode, the Graph Display Area (see "Bar Code
Analysis Screen" on page 4-9) is updated immediately as the SV scanner/verifier
processes each bar code. In the “all data points” mode, bar code processing can continue, but the ScanView display is not updated. The Grade Bar (Color Bar)
is dimmed when in All Data Points mode.
Zoom In
Toggles the Zoom-In mode. First, it switches from Last 64 Data Points mode (see All Data Points, Last 64 Data Points Section above), to All Data Points mode (see All Data Points, Last 64 Data Points Section above). To zoom-in, hold down the left mouse button and drag the mouse-pointer to a desired data point in the Graph Display Area; Hold down the Ctrl-key when the left mouse button is released (then release the Ctrl-key.) The plots are stretched to show only half of the data on each side of the mouse pointer. To zoom further into the data, repeat this process.
Erase Current Session Data
Erases all of the data in the current session. Also, the data in the
corresponding hard disk files is deleted.
Reflectance Profile
Scan and Display a new Reflectance Profile. (See "Reflectance Profile
Screen" on page 4-12.) The shortcut key for this function is F3.
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Transmit SV Commands
This button invokes a special screen where up to fourteen individua l commands may be composed and transmitted in any order. Proper use requires knowledge of the SV download language. See the Chapter 6, SV Download Language for details. This function is intended for advanced setup involving special functions not normally accessed by ScanView. These can include special transmission formats, special commands in a custom SV firmware version or diagnostic functions used by Hand Held Products’ Application Support and Service personnel. The shortcut key for this function is F4.
Report an Analysis
Reports a new analysis of any bar code(s) currently in the SV
unit’s beam path. This is most useful in setup where scan distance and orientation is being finalized. It is also useful when using the SV unit as a standalone verifier scanning codes being manually placed in the beam by the user. The shortcut key for this function is the Spacebar.
Modes Of Operation
ScanView operates in two basic modes: Session and Reflectance Profile.
Session Mode
This mode scans, analyzes and provides reports on individual bar codes. Reporting is accomplished via the Bar Code Analysis Screen (see "Bar Code
Analysis Screen" on page 4-9). The parameters analyzed and many of the
parameters displayed are user programmable Session Mode is entered by default when the program is initially started. It can
also be entered from the Reflectance Profile Mode by clicking the Return to Session Mode Speed button (see "Reflectance Profile Screen" on page 4-12.) The Bar Code Analysis Screen (see "Bar Code Analysis Screen" on page 4-9) is displayed and analysis from bar codes passing through the SV unit’s beam will be displayed. In cases where a bar code is statically held in the beam analysis of the code can be accessed by clicking the Report an Analysis Speed button.
Session Mode Notes
ScanView updates the bar code analysis graphs each time a bar code is processed by the verifier; but there is a limit to the graph update rate that ScanView can sustain. Factors that determine the processing load include the bar code analysis rate (bar codes per second) and the number of displayed analysis parameter graphs (selected by the user). The Windows communications facility has a data buffer that allows the graph processing to ‘catch up’ between bursts of transmitted data. If the incoming data volume
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exceeds the application’s processing limit it will lag farther and farther behind until the buffer overflows and the communications port ceases to operate. If this condition occurs, port operation can be restored by clicking the Initialize Com Port item in the Support Menu list. When using ScanView to monitor a printing session, the user can test for processin g lag du ri n g sh ort samp le ru ns by intermittently blocking the beam path and noting the resulting analysis graph update lag. If the apparent lag time is longer when the time between blocking the beam is longer, then an adjustment is required; either reduce the speed the bar codes are traveling through the laser beam or change to a ScanView display mode that requires less graphic processing. (e.g., see "Toggle Display
Updating" on page 4-5 .)
ScanView streams the verifier analysis results directly to data files on hard disk as the data are received from the verifier. There are two data files: one, contains the verifier analysis results; the other file contains the date and time when each bar code was processed (supplied by the PC clock). The two default files are deleted and a new pair of default files are created each time the ScanView application is launched. Therefore, the user must rename the files to preserve session analysis results. To do this, use the ‘Save As’ item in the File Menu. Enter a filename without a trailing file-type identifi er. ScanView uses that name to create two files: one, for the session analysis results data (.ses); and the other for the date/time data (.tim).
When ScanView is launched it exhibits the same configuration it had when it was last shut down. The configuration parameters that are maintained between application launches include window position, shap e and the user selected display mode options. The configuration saving capability extends to selected application’s dialog boxes that can be repositioned and reshaped by the user.
Reflectance Profile Mode
This mode gathers and displays a scan reflectance profile for the entire scan path. The profile is displayed with the Reflectance Profile Screen (see
"Reflectance Profile Screen" on page 4-12.) Reflectance Profile Mode is
enabled by clicking the Reflectance Profile Speed button or pressing F3.
Analysis Screens
There are two analysis screens used for setup and monitoring an SV type scanner/verifier. These are th e Bar Code Analysis Screen and the Reflectance Profile Screen.
Bar Code Analysis Screen
This screen provides all analysis results for a particular bar code. It also shows many bar code analysis results over time. An example is shown below. Each individual parameter analysis result for one bar code is indicated by a dot on a parameter graph in the Graph Display Area and can be easily accessed via the mouse.
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