Map Application Variables to an OPC UA Variable Manually

In addition to being able to link an application variable with an OPC UA variable using drag & drop, you can also enter the path of the application variable manually.

  1. Select the OPC UA variable in the OPC UA information model.
  2. Open the “Mapping” tab in the information model.
  3. In the “Mapping type” selection box, select the “Mapping to application variable” option.
  4. Note: The data type of the OPC UA variable only serves as additional information at this point. If you want to change it, use the “Edit instance” function.
  5. In the “Symbol path” field, enter the path of the application variable in the symbol configuration.
  6. Map Application Variables to an OPC UA Variable Manually
  7. Click [Confirm] to apply the changes.
  1. The entered value is displayed in the “Mapping” area next to the OPC UA variable.

Note: When the entry is applied, the validity of the path is checked. If the path entered does not refer to a valid variable in the symbol configuration, an error is displayed. The changes are not applied.