MMS Command Responses

NI-Industrial Communications for IEC 61850 15.0 Help

Edition Date: December 2015

Part Number: 373800D-01

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When you send a manufacturing message specification (MMS) command from the client, the server returns a response for the command. The response consists of the response type and the response code. The response code is a 64-bit unsigned integer. The higher 32 bits and the lower 32 bits of the code indicate the response explanation. The following table lists response types and the descriptions of the corresponding codes.

Response Type Response Code
Higher 32 Bits Lower 32 Bits
No Response N/A
Response (Data IO VIs) Returns 0 for success and returns 1 for failure. (Data IO VIs) Returns 0 for success and returns DataAccessError for failure.
(Send DeleteNamedVariableList VI) The number of matched data sets on the server (Send DeleteNamedVariableList VI) The number of deleted data sets on the server
(Other MMS VIs) N/A
Confirmed Error Error class of MMS ServiceError Error code of MMS ServiceError
Reject Error Reject PDU reason Reject code
Timeout N/A

Refer to the IEC 61850-8-1:2004 standard and the ISO/IEC 9506-2:2003 standard for more information about the following terms:

  • DataAccessError
  • MMS ServiceError
  • MMS ServiceError
  • Reject PDU

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