NCR 7454 - Turn on Screen Save; Disable Screen Save Option; Enable Character Blink

6-12 Chapter 6: NCR 7454 4x20 Customer Display
Turn On Screen Save
Format: 1B 0B
Description: Thiscommandcausestheoneofthescreensavefunctions(SetScreen
SaveBlankorSetScreenSaveWalk)toactivateimmediatelyrather
thanwaitingforthescreensavetimertoexpire.IftheDisableScreen
SaveOptioncommandisineffectwhenthiscommandisissued,itis

canceledandthescreensaverisenabledandactivatedimmediately.
Disable Screen Save Option
Format: 1B 0C
Description: Thefirmwarewillceasetokeeptimeforthescreensaveactivityfrom
thehostsoftwareandthedisplaywillneithergoblanknorbeginto
walkduetoinactivityfromthehost.Thiscommandcanbecanceledby
theTurnOnScreenSave,SetScreenSaveBlank,and
SetScreenSave
Walkcommands.
Enable Character Blink
Format: 1B 0D
Description: Theblinkattributeistheonlymodifierthatissupportedforthedisplay
characterpositions.Theattributeitselfisnotnecessarilyprogrammed
witheachnewcharactercode.Rather,eachtimeanewcharacteris
received,thecurrentsettingofthecharacterblinkoperatorisadopted
astheworkingattribute
forthenewcharacter.Ifanewcharacteris
receivedwhilecharacterblinkisenabled,thenewcharacterwillblink.
Thismakesitpossibletohave adisplaywithbothblinkingandnon‐
blinkingcharacters.Theblinkperiodisonesecondonandonesecond
off.Allcharactersthatare
blinkenabled,blinkatthesametime.The
onlywaytocauseanexistingcharactertostartorstopblinkingistoset
upthecharacterblinkoperator,locatethecursortothecorrect
character,andresendtheindividualcharactercode.