Opticon NFT 2100 manual Tips for Verifying the Presence of a Bar Code

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Manual No. 25-ULNFT2100-01; Mar, 2005	NFT 2100 CCD Fixed Mount Barcode
Scanner

Tips for Verifying the Presence of a Bar Code

If the scanner is operated in the “trigger enabled” mode and the trigger is activated, one of three conditions may occur:

	A bar code is scanned and decoded.	Decoded data is
	A bar code is scanned and decoded.	transmitted
		transmitted
	A bar code is scanned but is not decoded	No data is transmitted
	(e.g., print quality was poor)	No data is transmitted
	(e.g., print quality was poor)
	No bar code is present	No data is transmitted

In some applications, when no data is transmitted, it may be important to know why. Was there a bar code present that could not be decoded, or was no bar code present at all?

This requirement is common in applications such as automated blood analysis equipment. Test tubes containing blood samples from many different people are loaded into a rack for automatic analysis. The bar code on each tube ties that sample and the results back to a specific individual. If no bar code data is transmitted it is critical to understand the reason.

Your Opticon scanner, when operated in the Trigger Enabled mode, can be programmed to transmit an error message indicating whether or not a bar code was present. See Section 33 of Appendix C of this manual for details.

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Contents NFT User’s GuideContents Organization of this Manual Quick Start-Up Procedure Product OverviewPage Optical Specifications Physical SpecificationsSymbologies Supported Specified operation β at + 6º or less. Recommended at 0º SkewPitch 35.4 Tilt RotationElectrical Specifications Operating Voltage +5VDC + 5% RS232 Communications SpecificationsOrdering Information Connector Pin-outsEnvironmental Specifications RegulatoryReading width or Field of View of the scanner Achieving Optimum PerformanceDistance to the Bar Code and Depth of field Avoiding Specular Reflection Field-of-View Specification Based Upon 69º Degree SweepReadable Width or Field of View for the NFT Quality Bar Code LabelsTips for Insuring Highest Data Integrity Measuring Scanner PerformanceApplication Notes Tips for Achieving High Throughput Tips for Verifying the Presence of a Bar Code Parameter Factory Default Setting Programming Menus & CommandsDefault Settings Modified and/or Customized Scanners Technical Assistance and SupportCommon Causes of Poor Performance Opticon IEC 825-1 Class 1 LED DevicesPage ESC Computer Command CR Appendix aReset All Defaults U2 Command What if you make a mistake?Appendix B Options for Code Direct Input Alpha/Numeric Characters Prefix SuffixDirect Input Miscellaneous Characters Direct Input Ascii Control CharactersSelecting the Read Mode Communication DelaysSetting the Trigger Functions Scanner Timeout Trigger ModeGood Read LED Operation Xmit Error Trigger Enabled Mode onlyRedundant Decoding Scanner Timeout Trigger Enabled Mode only Global Default & Scanner ConfigurationsDelete/Deactivate Bar Code Symbologies Appendix CDescription Command Computer Function Bar Code Symbology SelectionSymbologies Only MSI/PlesseySymbology Selection Only EAN 13/8 +2Add/Activate Specific Bar Code Symbologies Computer Function Command Description Delete/Deactivate Bar Code SymbologiesAdd/Activate Specific Bar Code Symbologies Disable all symbologiesOptions for UPC Digits Add leading zero7J JC JB IO IP Options for EAN-8 & EAN-13Options for Code 39 and IT Pharmaceutical Possible Disable IT PharmaceuticalOptions for Codabar NW-7 Enable normal, ABC & CX Codabar Disable ABC & Cx Codabar Page F2 HF HG HJ HH HI Command DescriptionGG Enable transmit SCode as Interleaved 2 Options for Interleaved & Industrial 2Options for Iata String format Meaning of Acronym Number of digits 15 totalOptions for Code-128 / EAN-128 Options for Code-93I2 IL IM Disable length setting on allScan Enable length setting H1 for all symbologies Creating a Prefix and/or Suffix Page Setting Prefixes Identifying the Symbology UPC-E +2 or +5O1 NC M9 N MSI/PlesseySetting Suffixes Identifying the Symbology Setting Suffixes Identifying the Symbology O6 PC MDirect Input of Numeric Characters Direct Input of Alpha Characters Direct Input of Alpha Characters Lower Case ETB Direct Input of Control CharactersComputer Function Bar Code Command Description DELDirect Input Characters Misc Direct Input Characters Misc Communication Parameters Communication Handshaking TerminalCommunication Delays Q5 LB LC LD LESet buzzer at 3kHz Disable buzzerBuzzer Operation Use as Com Port Command Setting the Trigger FunctionsSelecting the Read Mode Multiple Read Mode. will readRead Scanner’s time out Scanner may not read the same bar Trigger Function Enabled S8 Trigger Function Disabled S7Mode Add-on Wait Mode Applies to UPC/EAN only YB YC YD YEScanner Timeout Trigger Enabled Mode only ZM Z1Multiple Read Reset Time BI BJ BK BL BM BN BO BHZO ZP ZQ ZR ZS ZT ZU ZV Quiet Zone OptionsRedundant Decoding Transmitting Error IndicationsXE XD UI UJ No read error messagesProgramming No read Error Messages Good Read LED OperationAppendix D NFT 2100 Depth of Field Chart Appendix EAppendix F Appendix G