Applies To:
  • CitectSCADA 1.00, 1.01, 1.10, 1.11, 1.20, 2.00, 2.01

If the communication between a remote base that contains the NIM is bad but not totally failed, the TIWAY communication to the I/O Server may fail. It seems that the remote base will retry continuously to the PLC - causing the NIM to lock up the TIWAY network. 

To prevent this problem from occuring, check that the cable from the PLC to the remote base is installed correctly.

CIT are researching this problem and will post new information here as it becomes available.