EnableOperation : BIT; bitError : BIT [...] FUNCTION_BLOCK FB [...] OperationEnabled : BIT; bitError : BIT

_BLOCK ADD_FB g [...] 多个任务的写访问 FUNCTION_BLOCK ADD_FB g [...] : INT; // error SA

_BLOCK FB_ADD VAR vc [...] _BLOCK FB_SUB VAR vc [...] FUNCTION_BLOCK FB

EnableOperation : BIT; bitError : BIT [...] _BLOCK FB_Controller VAR [...] PLC_PRG fb