Siemens SIMATIC ET 200AL - Page 895

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
Function Manual, 12/2017, A5E03735815-AF
209
The properties of an OPC UA method with the BrowseName "InputArguments" and
"OutputArguments" are OPC UA tags and are
not
assigned.
Step 3: Importing server interfaces
Proceed as follows to import an OPC UA XML file as "Server interface":
1. Open the STEP 7 project.
2. Click "OPC UA communication > Server interfaces".
3. Double-click on "Import server interface".
4. In the "Import" dialog, select the file that you want to import as server interface.
In the example, this is the file "demo.xml".
5. Click the "Import" button.
6. Also import the files "Opc.Ua.Di.NodeSet2.xml", "Opc_Ua.EUROMAP77.NodeSet2.xml"
and "Opc_Ua.EUROMAP83.NodeSet2.xml".
The "demo.xml" file relates to the files just specified.
Always use the latest versions of these files as STEP 7 does not compile OPC UA XML
files with errors.
The above image of the machine generated in accordance with Euromap 77 specifications is
now available in the address space of the OPC UA server.
Step 4: Creating PLC tags and server methods in the STEP 7 project
In the example, you have assigned the PLC tag
"MyIMM_MES_Interface"."InjectionUnits.NodeVersion" to the UA tag with
NodeId="ns=1;s=MyIMM_MES_Interface.InjectionUnits.NodeVersion"; see "Step 2:
Assigning PLC tags".