For all VariableTypesspecified in this specification, the Attributesnamed in Table 7shall be set as specified in the table. The definitions for the Attributescan be found in OPC 10000-3.
Table 7– Common VariableType Attributes
|
Attributes |
Value |
|
Value |
Optionally a server-specific default value can be provided. |
|
ArrayDimensions |
If the ValueRankdoes not identify an array of a specific dimension (i.e. ValueRank<= 0) the ArrayDimensionscan either be set to null or the Attributeis missing. This behavior is server-specific. If the ValueRankspecifies an array of a specific dimension (i.e. ValueRank> 0) then the ArrayDimensions Attributeshall be specified in the table defining the VariableType. |