121
Descriptionofthefunction
OutputQissetto1witha0to1signaltransitionatinputTrg.The1to0transitionatinputTrgtriggers
thecurrenttimeandoutputQremainsset.
OutputQisresetto0whenTareachesthetimeT.Beforetheoffdelaytime(T-T
!
)hasexpired,youcan
outputapre-warningthatresetsQforthedurationoftheoffpre-warningtimeT
!L
.
Taisretriggered(optional)atthenexthigh/lowtransitionatinputTrgandifTaisexpiring.
Ifretentivityisnotset,outputQandtheexpiredtimeareresetafterapowerfailure.
SettingtheParparameter
Note
Alltimesmusthavethesametimebase.
Viewinparameterassignmentmode(example):
6.5.10Multiplefunctionswitch
Shortdescription
Timebase
T
Pre-warningtime Pre-warning
period
Seconds 750ms 50ms
Minutes 15s 1s
Hours 15min 1min
*makessenseonlyforprogramswithacycletimeof<25ms