OPC 10000-4 specifies all Services needed for OPC UA Historical Access. In particular:

The HistoryRead service has the following parameters (see OPC 10000-4 for details):

The HistoryReadDetails is an extensible parameter that can be any of the parameters defined in Table 27. Each of these parameters are described in detail in the section 6.5 subsections. The other parameters listed above may have special requirements described in the section 6.5 subsections.

The return parameter for the HistoryRead service has the following parameter:

  • results []
  • statusCode
  • continuationPoint
  • historyData

The historyData parameter is an extensible parameter that is defined section 6.6. The other return parameters may have special meanings assigned either in section 6.6 or in the 6.5 subsections.