Manual

Software User Guide 149
Automation Tab
Global:ClickingontheGlobalbuttonwillreturntheusertothemainI/OControldialogwindow:
CPUMonitorTimeout(ms):ThisoptionisusedtomaketheI/OfailsafeifthemainCPUstopsworking.ThemainCPU
controlscommunication,IODBandcodewritteninC.Ifthemain
CPUstopsworking,theI/Oprocessorwilldetectthat
inthetimedefinedinthisfield.Suggestedtimeoutsare1000msto10000ms.Timeoutsfasterthen100msarenotrec‐
ommended.Themaximumallowedtimeoutvalueis0xFFFF(65535ms).
Settingthisvalueto0willdisablethefeature.Thedefaultvaluleforthis
fieldis0(TimeoutDisabled).
Selectthe“T imeoutActions”fieldtodefinewhattheI/OshoulddowhenaCPUtimeoutoccurs.
TimeoutActions:WhenatimeouttotheCPUoccurs,theselected“TimeoutAction”willtakeeffect.
When“DropPhysicalOutputs”isselected,alloutputsaredroppedto
and
OFFstated.
When“NoAction”isselected,outputswillholdtheirlastknownvalue.
Inadiscreteoutputmodule,theOFFstateissimplyturningtheoutputsoff,inananalogoutputmodule,OFFmeanstoset
alloutputstoanominalcalibratedzerooutput.TPOOutputswillbesettooutput
0,butmayrequirethenormalTPOinter‐
valtoelapsebeforetheoutputwillgooff.
DiscreteInput
• ClickontheDiscreteInputbuttonandthefollowingdialogwindowwillappear: