202
TheDirparametergivestheaction
directionofthecontroller.
Positivemeans:Ifsetvalue>process
valuethentheprocessvalueis
increased;ifsetvalue<process
valuethentheprocessvalueis
reduced.
Negativemeans:Ifsetvalue>
processvaluethentheprocessvalue
isreduced;ifsetvalue<process
valuethentheprocessvalueis
increased.
e.g.heatregulation:ifthesetvalueis
greaterthantheprocessvalue(room
istoocold),themanipulatedvariable
increasestheprocessvalue.
-or+
6.5.36Memorywrite
ShortDescription
OnlywhenthereisalowtohightriggeratTrgpin,theMemoryWriteblockwillbeactivatedandthe
pre-configuredrecordactionwillbeperformed,atthesametimetheoutputwillswitchoniftherecord
actionhadbeendonesuccessfully.
Connection Description
Trg input OnlywhenthereisalowtohightriggeratTrgpin,theMemory
writeReadblockwillbeactivatedandthepre-configuredrecord
actionwillbeperformed.Eachtrigger,onlywriteonce.
Input R ResettheMemoryWriteblockandsettheoutputto0viatheR
(Reset)input.ResethaspriorityoverTrg
Output Q QswitchesononlyafterWritefunctionhadbeenexecuted
correctly.