OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
Function Manual, 11/2019, A5E03735815-AH
213
9.3.4.4 Rules for OPC UA XML files
Importing exported OPC UA XML files to an S7-1500 CPU
Please note the following information when importing server interfaces that come from the
OPC UA XML export of an S7-1500.
Note
Import blocked for namespace "http://www.siemens.com/simatic-s7-opcua"
You cannot i
mport server interfaces with the namespace "http://www.siemens.com/simatic-
-opcua" to an S7-1500 CPU because this namespace is reserved for S7-1500 CPUs
(standard SIMATIC server interface) and is
not available for imports.
If you want to import a server
interface with the namespace
"http://www.siemens.com/simatic
-s7-opcua", open the server interface to be imported (OPC
UA XML file) and change the namespace in the relevant places. The file thus cha
nged can
Integrity of the OPC UA XML files
OPC UA XML files represent the server address space. These files are, for example,
imported by you in the context of OPC UA Companion specifications as a server interface
after adaptation to the application, loaded with the hardware configuration into the
S7-1500 CPU and tested.
No checking of imported OPC UA XML files
Protect these OPC UA XML files against unauthorized manipulation since STEP 7 does not
check the integrity of these files.
Recommendation
To minimize risks in the case of an extension or adaptation of the server address space,
follow these steps:
1. Protect the project (project navigation: Security settings > Settings).
2. Export the corresponding server interface before the extension or adaptation.
3. Revise this OPC UA XML file.
4. Import the file again as a server interface.
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