Hello ALL,
I am using S7 400 PLC. I have as strange feeling that the Temps in the FB & the OBs do not cleared off; atleast the one entered didn't.
I have added 3 temp integers in the OB70 to write a diagnostic. Now I am unclear how & who clears them. My understanding is that CPU will call on error OB70 only once??? in the programm cycle.
Did anyone have a similar problem. What about the STATS in FBs .Do I have initialize them.
Any suggestions!
I am using S7 400 PLC. I have as strange feeling that the Temps in the FB & the OBs do not cleared off; atleast the one entered didn't.
I have added 3 temp integers in the OB70 to write a diagnostic. Now I am unclear how & who clears them. My understanding is that CPU will call on error OB70 only once??? in the programm cycle.
Did anyone have a similar problem. What about the STATS in FBs .Do I have initialize them.
Any suggestions!