Alias

Alias 1:

Requirements

This functionality is only available for Data Access devices based on TwinCAT 3 and the import of TMC symbol files, as well as the online symbolism.

With the following pragma, a symbol can have a different name in the OPC UA address space.

{attribute 'OPC.UA.DA' := '1'}
{attribute 'OPC.UA.DA.Alias' := 'MyFancyOpcUaAlias'}
nMyCounter : INT;

The NodeID as well as the BrowseName and DisplayName are set to the alias value accordingly.

Alias 2:

In the case of TwinCAT 3 C++, you can also use this pragma in the TMC Code Generator to set an alias for the node. Please note that this feature is only available under TwinCAT 3 C++ when using online symbolism.

Alias 3:
Alias 4: