OPC historical data access > OPC Historical Data Access clients

Input script file for OPCHDAClient.exe

The input script in the command line argument for the OPCHDAClient.exe is an XML file. The XML script file must conform to the schema defined in the file DvOpcHda.xsd. The schema file, which should never be modified, may be used to validate the XML script file (including syntax and data types) used as input to OPCHDAClient.exe.

The tags defined in the following are optional or take default values.

The script has two parts, configuration and execution:

<DeltaVOpcHdaClient>

  <Configuration>…</Configuration>

  <Execution>…</Execution>

</DeltaVOpcHdaClient>

All time stamps in the script file are UTC time to be consistent with the OPC HDA standard.