When PLC online, the state appears the statements are not being processed?

In an FC where monitoring occurs when the statements are not being processed
When other FC monitoring are normal, you can connect, ask why?
A: PLC online, the state appears the statements are not being processed?
Indicates that some statements have not been processed. This execution logic of your program about:
There compare, branch, some of the statements will not be executed;
There FC \ FB is conditional call, this time does not match the conditions that are not called.

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