AC500 watchdog time
Hi to All,
please could someone write me, how to set watchdog time in AC500? I have written a program for 30 modbus slaves I am reading data from. And from time to time there is an error in E2 class with description "Cycle time is greater than the set watchdog time; or Cycle time exceeded, but shorter than watchdog time" Online text is "IEC Task 0". I really do not understand this and I am not able to find any setting for the watchdog.
Thank you a lot for your help
Voted best answer
Take a look at the pdf I've attached.
From new the plc have a cyclic task of 10ms and when you program gets larger you need to raise the cycle time. When you define a task and is online you get some values for average time and using these values you can fine tune the task time.
But since you only get this error some times you do not need to raise the cycle time to more than 20ms or so.