Dalfaro2110 (Customer) asked a question.
Problems with scan time E003
We have a dl06 plc that has been working on a machine for around 4 years and few days ago the plc is presenting a fault with the Watchdog scan time. I tried to reset the plc to factory default and i wrote one line of code and the fault is presenting again, then I saw the actual scan time and it was at max value. when I change the WD value I start to get problems with the communication between the plc and the PC (I put a value greater than the max scan time)
When I wrote that one line of code I didn't configure the CTRIO CPU. I Think this will not be A problem, right?
In this case, what should I do? someone could give me a example?
I hope someone can help me!!! Thanks!!
I would try removing all modules from the DL06 and then in the software when connected to the PLC find the "initialize scratch pad" option to completely blank the PLC. Then upload a program that just says something like your previous C0----out->Y0 and run the PLC and see if it still gives the error. If so, the hardware is most likely bad at that point. If not, add the modules back in, and see if the error returns. It could be something as simple as a loose connection of a module causing a timeout when trying to communicate with it
Initialize scratch pad will blank all memory in the PLC as far as I know. Simply uploading a blank program will not clear any memory in the PLC that was there before and either saved or held by battery power.