Siemens SIMATIC ET 200AL, System Manual

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OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
Function Manual, 05/2021, A5E03735815-AJ
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Using Euromap 77: Overview
To use Euromap 77, proceed as follows:
1.
Generate an XML file by creating an instance of the type "IMM_MES_InterfaceType" using
the SiOME program.
How to proceed is described below in "Step 1: Create instances in SiOME".
2. In STEP 7 (TIA Portal), create PLC tags and server methods that correspond to the instance of
the type "IMM_MES_InterfaceType" (created in Step 1).
See below for information on how to proceed in "Step 2: Create PLC tags in STEP 7".
An example of OPC UA nodes and the corresponding PLC tags can be found in section
"Creating a server interface for companion specification (Page 253)".
3. In STEP 7 (TIA Portal), add a new server interface of companion specification type and
import the XML file you created in step 1.
The "Creating a server interface for companion specification (Page 253)" section describes
how to proceed.
4. Assign the OPC UA nodes of the new server interface to the corresponding PLC tags, which
you created in step 2.
The "Creating a server interface for companion specification (Page 253)" section describes
how to proceed.
Step 1: Create instances in SiOME
The following section describes how to use the free program "SiOME", the "Siemens OPC UA
Modeling Editor".
With SiOME, you can create an OPC UA XML file, which describes the server interface (an
information model).
Download link and explanations about SiOME are available here
( https://support.industry.siemens.com/cs/ww/en/view/109755133 ).
Procedure in STEP 7
To use the new server interface, import the server interface into the STEP 7 project, see
section "Creating a server interface for companion specification (Page 253)".
When the project is loaded into the CPU, the new server interface is available for OPC UA
clients.