NCR 74 OFX (7874) - Bar Code Type; Common Byte; Unique Identifier

5-42 Chapter 5: Programming
Note: RefertotheASCIICodeChartfortheHexCharacters;however,valuesof20to
7Earerecommended.DonotusethesamecharactersastheTerminatorByteorthe
messagemayterminatetoosoon.Also,aCommonBytecannotbe00.
IfnotusingaCommonByte,scanany
HextagtwiceexceptHex0ortheTerminator
Bytevalue.
Note: Four(4)tagsmustbescannedtogotothenextparameter.
Bar Code Type
TheBarCodeTypeparameterselectsthebarcodetypeforenteringitsassociated
labelidentifierinformation.AfterenteringaBarCodeType,entertheCommonByte
andUniqueIdentifier.Thisprocedurerepeatsuntilthelabelidentifiers are specified
foreachbarcodetype.ScantheHex0throughHex9
tagtoentertheappropriateBar
CodeType.
Note: UPCVersionDisalwaysdisabled.
Common Byte
TheCommonByteparameterselectswhichcommonbytes,ifany,toaddtothebar
codedatamessage.EachentryisuniquetothepreviouslyspecifiedBarCodeType.
ScantheHex0tagfornoCommonBytes,theHex1tagforCommonByte1,theHex2
tagfor
CommonByte2,theHex3tagforbothCommonBytes,ortheHex4tagfor
AIMIDonGS1DataBar.
Unique Identifier
TheUniqueIdentifierparameterpermitsthespecificationofthedatasenttothehost
terminalintheUniqueIdentifierfield.Eachentryisuniquetothepreviously
specifiedBarCodeType.Enterthisdataastwo(2)Hexcharactersusing
recommendedvaluesof20to7E(Refertothe“ASCIICode
Chart”sectioninchapter
5).
Note: IfthesamecharactersareusedasintheTerminatorByte,themessagemay
terminatetoosoon.