Hi,
can anyone explain me what is the difference in Logix Designer FBD between instruction first scan and instruction first run?
I understand that:
- in instruction first scan, controller sets acutal inputs states but without code execution.
- in instruction first run, controller initializes data and data stores for function block with code execution.
Please correct me if I'm wrong.
can anyone explain me what is the difference in Logix Designer FBD between instruction first scan and instruction first run?
I understand that:
- in instruction first scan, controller sets acutal inputs states but without code execution.
- in instruction first run, controller initializes data and data stores for function block with code execution.
Please correct me if I'm wrong.
