Easy Electronics xLogic Micro PLC - Hours Counter

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theoutputis0andthepulsesatinputCntarenotcounted.
OutputQissetandresetaccordingtotheactualvalueatCntandthesetthresholds.Seethefollowing
rulesforcalculation.
Calculationrule
Iftheonthreshold>=offthreshold,then:
Q=1,ifCnt>=On
Q=0,ifCnt<Off.
Iftheonthreshold<offthreshold,then:
Q=1,ifOn<=Cnt<Off.
Caution
Thefunctionpollsthelimitvalueofthecounteronceineachcycle.
Thus,ifthepulsesatthefastinputs(ELC-12)orIB/IC(ELC-18)arefasterthanthescancycletime,the
SFBmightnotswitchuntilthesospecifiedlimithasbeenexceeded.
Example:Upto100pulsespercyclecanbecounted;900pulseshavebeencountedsofar.On=950;Off
=10000.Theoutputissetinthenextcycle,afterthevaluehasreached1000.
TheoutputwouldnotbesetatallifthevalueOff=980
6.5.14Hourscounter
Shortdescription
Aconfiguredtimeistriggeredwithasignalatthemonitoringinput.Theoutputissetwhenthistimehas
expired.
Connection Description
Input R Apositiveedge(0to1transition)atinputRresetsoutputQ
andsetsaconfiguredvalueMIatthecounterforthe
durationofthetime-to-go(MN).
Input En Enisthemonitoringinput.xLogicscanstheon-timeofthis
input.
Input Ral ApositiveedgeatinputRal(Resetall)resetsboththehours
counter(OT)andtheoutput,andsetstheconfiguredvalue
MIatthecountertoforthedurationofthetime-to-go(MN).
Thatis,
• OutputQ=0,
• ThemeasuredoperatinghoursOT=0,and
• Thetime-to-goofthemaintenanceinterval
MN=MI.
Parameter MI:Maintenanceintervaltobespecifiedinhourunits