Table 67 defines values for the statusCode parameter and Table 68 defines values for the inputArgumentResults parameter that are specific to this Service. Common StatusCodes are defined in Table 183.
Server vendors or OPC UA companion specifications may reuse existing StatusCodes for application specific error information. This is valid as long as the canonical description of the StatusCode does not have a different meaning than the application specific description. To eliminate any vagueness, the Server should include the application specific description in the DiagnosticInfo.
Good StatusCodes with sub-status shall not be used as statusCode since many programming language bindings would cause such codes to throw an exception.
Table 67 – Call Operation Level Result Codes
|
Symbolic Id |
Description |
|
Bad_NodeIdInvalid |
See Table 183 for the description of this result code. Used to indicate that the specified objectId is not an Object or ObjectType. |
|
Bad_NodeIdUnknown |
See Table 183 for the description of this result code. Used to indicate that the specified objectId refers to a node that does not exist in the Server address space. |
|
Bad_NotExecutable |
The executable Attribute does not allow the execution of the Method. |
|
Bad_ArgumentsMissing |
The Client did not specify all of the non-optional input arguments for the Method. |
|
Bad_TooManyArguments |
The Client specified more input arguments than defined for the Method. |
|
Bad_InvalidArgument |
See Table 182 for the description of this result code. Used to indicate in the operation level results that one or more of the input arguments are invalid. The inputArgumentResults contain the specific status code for each invalid argument. |
|
Bad_UserAccessDenied |
See Table 182 for the description of this result code. |
|
Bad_SecurityModeInsufficient |
See Table 183 for the description of this result code. |
|
Bad_MethodInvalid |
The method id does not refer to a Method for the specified Object. |
|
Bad_NoCommunication |
See Table 183 for the description of this result code. |
|
Uncertain |
The Method execution fails but the outputArguments provide additional information like an application specific error code. |
Table 68 – Call Input Argument Result Codes
|
Symbolic Id |
Description |
|
Bad_OutOfRange |
See Table 183 for the description of this result code. Used to indicate that an input argument is outside the acceptable range. |
|
Bad_TypeMismatch |
See Table 183 for the description of this result code. Used to indicate that an input argument does not have the correct data type. A ByteString is structurally the same as a one dimensional array of Byte. A Server shall accept a ByteString if an array of Byte is expected. |
|
Bad_DecodingError |
See Table 182 for the description of this result code. Used to indicate that an input argument with a Structure DataType cannot be decoded. |