Recent content by abol_fa

  1. A

    (IEC 60870) what is the correct response when receiving invalid COT or CA or IOA values.

    When a device receives an ASDU with an unknown COT or CA or IOA value what type of Information Object should be included in the response? I know that the response COT could have one of these values : COT=44 COT=45 COT=46 unknown type identification unknown cause of transmission unknown...