Hi guys, I came in this morning and I had an error on one of my SLC's. The error was "The watchdog timer expired.". I looked at the major error codes and it says to increase the watchdog timeout value in the status file. I have checked out the Scan times on the PLC and S:3 is set to 160. From reading the manual I take it that this is 1.6 sec? I checked on the "Errors" tab S:20 and S:21. These point towards the EOP rung on my first (Main) routine. Just before this last rung is an Unlacth for S:5/0. I take it this is a Math overflow Unlatch. Does anyone have any idea's why this error may have happened. I don't recall seeing this error before. Thanks, Conor
↧