HandHeld Entertainment SV Series manual Parameters Analyzed, Sync Mode Stationary Bar Codes

Page 106

Note: When in this sync mode, the sync input is a background application. The SV Series will scan, analyze and report on bar codes as they pass through the beam in this mode, regardless if a sync signal is sensed. The presence of a sync signal allows the number of codes expected (programmed) during the sync period to be used for a No Read condition. The absence of a sync signal results in operation similar to the Free Scan Operation described later.

Sync Mode – Stationary Bar Codes

In this mode, a bar code(s) are placed in the beam and held in a known position. A sync input commands the SV Series to turn on the laser beam, perform a programmable number of scans, report the analyses and turn off the laser beam.

A ~SA communication sync command is the most common sync source in this mode.

Note: The SV Series must be programmed for Picket Fence travel orientation in this mode if the bar codes are stationary when being scanned.

No Sync – Free Scan Operation

In this mode, a sync signal is not used and the SV unit scans and analyzes bar codes at random as they pass through the laser beam. As stated in the Sync Input section, this mode is not recommended because it cannot report on missing or undetectable bar codes that can be caused by printer or other system component failures. This mode is most acceptable when the SV Series is used as a bar code decoder only.

It is recommended to use serial communications to a host in this mode for the host to determine missing codes.

If this mode is used, the SV Series can still detect many print errors because of its partial decode analysis capability. This algorithm can detect a bar code start or stop character and two adjacent characters. This part of a code is usually present in most print failure situations.

For maximum reliability for partial decode analysis, the bar code(s) being analyzed must be present in the laser beam for 10 scans (example: 100 milliseconds for SV units with 100 scans/analyses per second performance). To calculate bar code travel speed in this mode, see "Bar Code Travel Speed Considerations" on page 5-3. Calculate the maximum speed for the application per those instructions and then divide the speed by two for this application.

Parameters Analyzed

For each bar code scanned and analyzed, the SV Series performs practically all the ISO, traditional and laser based verification methods documented in industry specifications. All analysis parameters for these methods are reported via serial communications (see "Serial Port Transmission Format" on page 3-1) and most of the parameters can be used in any combination to activate the five ports. The analysis parameters performed are listed below in the same order of the standard transmission format as applicable.

8 - 4

Quick Check® SV Series User’s Guide

Page 105 Page 107
Image 106
Page 105 Page 107
Contents User’s Guide Disclaimer FCC Class B Compliance Statement Statement of Agency ComplianceCanadian Notice SV Series Use with UL-listed Equipment Statement of RoHS ComplianceLaser Beam Laser Safety Enclosure DescriptionPage Table of Contents Scanner Setup ISO Parameter Grade Thresholds Technical Specifications Chapter a SV Series Setup Hints Scanning Distance and Angle Quick Check SV Series IntroductionLaser Beam SV Series Model SpecificationsScanView Software SV100Connector Reset ButtonControl Panel + 5 VDC Power Input Sync InputsIsolated Sync Input Diagram Edge Sync Mode Envelope Sync ModeCommunication Sync Commands Output PortsSystem Displays Power/Sync LEDIndicator LEDs 1 Calibration LEDSerial Port Pin-out Serial Port ConnectorSerial Port Specifications Serial Port Transmission FormatPos Chars Parameters + or indicating sign of avg. max. bar Symbology Identifier Table UPC-A Quick Check SV Series User’s Guide ScanView Software Installation ScanView Installation and SetupSystem Requirements PC Communication Port Setup Title Bar Screen Display Setup MenuSoftware Operation Warnings Menu Bar Screen DisplayMoving Codes Mode Select SymbologiesStatic Codes Mode Ladder Mode and Picket Fence ModeSupport Menu Advanced MenuAbout Menu Item Zoom Speed Button Bar Screen DisplayAll Data Points, Last 64 Data Points Erase Current Session DataSession Mode Notes Transmit SV CommandsSession Mode Modes Of OperationAnalysis Screens Reflectance Profile ModeBar Code Analysis Screen Bar Code Analysis Screen Bottom PanelGraph Display Area Bar Code Analysis Results for a Previous Bar CodeRight Panel Color Coding Reflectance Profile ScreenReflectance Profile Screen Scanner Setup Scanner Positioning Bar Code Travel Direction SV Scanner/Verifier Setup ProcedureBar Code Travel Speed Considerations Quick Check SV Series User’s Guide Quick Check SV Series User’s Guide Good Reflectance Profile Picket Fence Direction Bad Reflectance ProfileCalibration Picket Fence Bar Code Positioning SpecificationsSetting Ladder Mode Scanning Length Using ScanView Software Ladder DirectionProcedure Adjusting Scanner Gain and Offset Desired Signal Amplitude and Placement Quick Check SV Series User’s Guide SV Command Language Data Match Commands B~BCa##bc…bbb……mmm……bbb…… etc. up to 32 characters max Check for specific dataExamples ~ Brnbb .. + Define increment or decrement data checkIncrementing Examples Decrementing ExamplesDiagnostic Commands D Relationship Between ~BC and ~Br CommandsGet the Scan Rate Example return using ScanView Hardware Configuration Commands H~HB# Example return using ScanView inputted ~HB5 ~HO# Operational Mode~HQ# Transmission Mode Display the verifier parametersQuick Check SV Series User’s Guide ~Hdx01nnn Sets scanner gain or offset ~LA## Overall passing grade Label Setup Commands L~LD## Passing percent decode ~LFxy Analyze special subsymbology parameters ~LE#~LI# Include the specified symbology for a label ~LLQuick Check SV Series User’s Guide ~LQ# Enable or Disable Port Activations by Partial Decodes ~LS## Set minimum number of scans for valid read ~LT# Sync Input Source~LX# Sync Type ~LV## Output Interface Mode~LZ## Set Number of Codes per Label i.e., per sync period Output Mode Selection Commands O ~OS# Set Transmission Data Format~PBpiiaaabbb Port barcode decision block parameters Output Port Setup Commands PIDs Analysis Low High Units Parameters Value PCS ~PPpiiaaa Port action parameters IDs Description Low Value High ValuePort State PASS/FAIL Parameters ~PR#### Port/LED reset state Indicator Digit ValueSystem Control Commands S IndicatorHow to Set Up Single Scan Operation Checking SV Status with ~HTEnable Verification Execute the calibration procedureDisable Verification ~SK# Communication Sync~SN### Set the number of scans for Software Commanded Read ModeOperation Description Raster Check~Sh## Set the high target reflectance value for calibration Reset the System~Sl## Set the low target reflectance value for calibration ~Ssxy Command Example Data Transmission Example~Stx Command Example ~St5 Mode 00 ~LV00~Stx Program Command Indicator Header Output Interface Modes DescriptionsMode 01 I/O operation Mode 01 ~LV01Mode 01 LED Operation SV Commands Important to Mode Mode 02 ~LV02 Mode 02 I/O operationMode 02 LED Operation ~LV02~LQ0 Mode 12 ~LV12 Mode 03 ~LV03Mode 12 I/O operation Mode 12 LED Operation ~LV12~LDxx Mode 16 ~LV16 Mode 16 I/O operation~LV16 Mode 16 LED Operation~PP801xxx ~PB811xxxyyy Mode 17 ~LV17 OperationLED Operation SV Commands Important for Mode~LV17 ~PB815xxx000 Mode 18 ~LV18 LED Operation ~LV18 ~PB806xxx000 Mode 19 ~LV19 ~LV19 ~LDxx Mode 20 ~LV20 ISO Parameter Grade Thresholds Reference Decode Qcolvsv Series Product Specifications Technical SpecificationsParameter Specification Scanner Options PowerScanning Performance-SV Series Model SyncOperation Modes SymbologiesSync Mode Moving Bar Codes OutputsParameters Analyzed Sync Mode Stationary Bar CodesNo Sync Free Scan Operation Quick Check SV Series User’s Guide Quick Check SV Series User’s Guide Cleaning Maintenance/Customer SupportMaintenance Technical AssistanceJapan Product Service and RepairOnline Technical Assistance For Further Information MalaysiaLimited Warranty Online Product Service and Repair AssistanceQuick Check SV Series User’s Guide Setting the Proper Scan Distance Setting the Proper Scan Angle Session Mode Screen Showing the X Dimension MeasurementButton Example of Good Scan Profile Calibration Hints Examples of Scan Profile Parameters Out of RangeQuick Check SV Series User’s Guide Page Hand Held Products, Inc
Top Page Image Contents