Nj-Series Instructions Reference Manual (W502 - Omron NJ501-1500 Reference Manual

ST
Variable
Trigger
LastTrigger
OperatingStart
Operating
ResetPLCError_instance
// Detect when Trigger changes to TRUE.
IF ( (Trigger=TRUE) AND (LastTrigger=FALSE) ) THEN
OperatingStart:=TRUE;
Operating:=TRUE;
END_IF;
LastTrigger:=Trigger;
// Initialize ResetPLCError_instance.
IF (OperatingStart=TRUE) THEN
ResetPLCError_instance(Execute:=FALSE);
OperatingStart:=FALSE;
END_IF;
// Execute ResetPLCError instruction.
IF (Operating=TRUE) THEN
ResetPLCError_instance(Execute:=TRUE);
IF (ResetPLCError_instance.Done=TRUE) THEN
// Processing after normal end
Operating:=FALSE;
END_IF;
IF (ResetPLCError_instance.Error=TRUE) THEN
// Processing after error end
Operating:=FALSE;
END_IF;
END_IF;

NJ-series Instructions Reference Manual (W502)

Data type
Initial value
BOOL Execution condition
False
Value of Trigger from previous task period
BOOL False
BOOL False Processing started
BOOL Processing
False
ResetPLCError
2 Instruction Descriptions
Comment
2
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