NCR 74 OFX (7874) - ASCII Code; Terminator Byte; RS232 Communications Options

5-48 Chapter 5: Programming
TheRS232TerminatorByteprogrammingmodecontrolstheuseofterminatorbytes.
IfanRS232TerminatorByteisused,itgoesattheendofthemessagesenttothehost
terminal.IfaBCCisincluded,itfollowstheTerminatorByteandincludesthe
TerminatorByteinthecalculation.Refer
tothe“ParameterDefaults”sectionearlierin
thischapterforthefactorydefineddefaultvalueofeachprogrammingparameter.
Terminator Byte
TherearetwoRS232TerminatorBytesavailable–thesecondTerminatorBytebeinga
directentryonly.ThereforeafterprogrammingtheFirstTerminatorByteHex2,Hex3
andHexCmustbescannedtobeabletoprogramtheSecondTerminatorByte.
ASCII Code
TheASCIICodeparameterforRS232TerminatorByteandPrefixBytehasthesame
function.Refertothe“RS232PrefixByte”sectionofthischapterformoreinformation.
RS232 Communications Options
22779
No Delay
0
1
010101012
10 Milliseconds 50 Milliseconds
RS-232 Delay
Scanner Only
4
Scanner / Scale
Scanner or
Scanner /
Scale Format
Disable
819
Enable
Good
Weigh Tone
5
1
2 4
Communication
Options
RS-232
Delay
Scanner or
Scanner /
Scale Format
Good
Weigh
Tone
Your Program

TheRS232CommunicationsOptionsparameterscontrolthedelaybetweenmessages,
andtheformatinwhichthescannerandhostterminalexchangetagdatamessages.
Thefirmwareisprogrammedtoacceptoneparameteratatimeandthenleavethis
programmingmode.Therefore,eachoftheparametersmustbeprogrammed
separately.
Refertothe“ParameterDefaults”sectionearlierinthischapterforthe
factorydefineddefaultvalueofeachprogrammingparameter.