sigmadue - IEC 61131-3 Function Block Library
132
Output
Label Description
MB_STS
0 = No operation / OK
1 = Transaction in progress
2 = Data available
3 = Timeout expired
4 = Agent error event
MB_OPRS
0 = No operation / OK
1 = Port not available
2 = Timeout expired
4 = CRC error
16 = ExCode error
