The components of this parameter are defined in Table 177.

The ServiceFault parameter shall be returned instead of the Service response message when the serviceResult is a StatusCode with Severity Bad. The requestHandle in the ResponseHeader should be set to what was provided in the RequestHeader even if these values were not valid. The level of diagnostics returned in the ResponseHeader is specified by the returnDiagnostics parameter in the RequestHeader.

The exact use of this parameter depends on the mappings defined in OPC 10000-6.

Table 177 – ServiceFault

Name	Type	Description
ServiceFault	structure	An error response sent when a service level error occurs.
responseHeader	ResponseHeader	Common response parameters (see 7.34 for ResponseHeader definition).