Configuring The Opc Ua Server Of The S7-1500 Cpu; Enabling The Opc Ua Server - Siemens SIMATIC ET 200AL System Manual

Exporting all array elements separately
If the "Export all array elements as separate nodes" option is selected in the CPU properties
under "OPC UA > Server > Export", the OPC UA XML file contains all elements of arrays as
individual XML elements.
This option is selected in the default setting and cannot be changed.
In addition, the arrays themselves are each described in an XML element in the XML file.
If an array contains many array elements, the XML file can be very large.
Tip
The following FAQ contains a converter with which you can convert the export file into CSV
format. You then obtain a list of the tags of the CPU that can be accessed by OPC UA.
You can find the FAQ on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109742903).
9.3.2

Configuring the OPC UA server of the S7-1500 CPU

9.3.2.1

Enabling the OPC UA server

Requirement
● You have acquired a Runtime license for the operation of the OPC UA server; see
Licenses for the OPC UA server (Page 179).
● When using certificates for secure communication (for example HTTPS, Secure OUC,
OPC UA), make sure that the relevant modules have the current time of day and the
current date. Otherwise, the modules will evaluate the certificates used as invalid and
secure communication will not work.
Commissioning an OPC UA server
By default, the OPC UA server of the CPU is not enabled for reasons of security: OPC UA
clients have neither write nor read access to the S7-1500 CPU.
Follow these steps to activate the OPC UA server of the CPU:
1. Select the CPU. Click on the CPU symbol (for example in the network view).
2. Click "OPC UA > Server" in the properties of the CPU.
3. Activate the OPC UA server of the CPU.
4. Confirm the security notes.
5. Go to the CPU properties, select "Runtime licenses" and set the runtime license acquired
for the OPC UA server.
6. Compile the project.
7. Download the project to the CPU.
The OPC UA server of CPU now starts.
Communication
Function Manual, 12/2017, A5E03735815-AF
OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
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