This annex defines the numeric identifiers for all of the StatusCodes defined by the OPC UA Specification. The identifiers are specified in a CSV file with the following syntax:

<SymbolName>, <Code>, <Description>

Where the SymbolName is the literal name for the error code that appears in the specification and the Code is the hexadecimal value for the StatusCode (see OPC 10000-4). The severity associated with a particular code is specified by the prefix (Good, Uncertain or Bad).

The CSV released with this version of the standards can be found here:

NOTE The latest CSV that is compatible with this version of the standard can be found here: