Dump Status of PLC

alanMICS said:
One way would to let the PLC fault instead of clearing the math over flow before the end of the scan. then the last values would still be in the registers.
This may not be an option depending of what it used for. but you would have plenty of time to log all the data then.
It would only require 1 line PLC program change unless it is faulting now.
Click to expand...

That depends. Other instrucitons could modify the contents of the registers before the end of the routine is reached.
 

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