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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UDT "XmlElement"
An XmlElement is a serialized XML fragment (UTF-8 string).
For the basic data type "XmlElement", create the following PLC data type:
Figure 9-47 "XmlElement" UDT
Example: Structure of EUInformation with UDT "LocalizedText"
Figure 9-48 Example: Structure of EUInformation with UDT "LocalizedText"
9.3.4.6
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 import server interfaces with the namespace "http://www.siemens.com/simatic-
s7-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 changed can
then be imported.
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