Siemens SINUMERIK 840DE sl Commissioning Manual page 939

SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 12/2017, 6FC5397-1DP40-6BA1
8. The following message will appear:
9. Shorten the filename to match SINUMERIK Operate requirements and make
sure the extension (.der) is still appended. Then press softkey "Ok"
Verify certificate is in trusted folder:
10. Then the connection to the server can be established from the OPC UA client.
Setting up of OPC UA server
3.4 Certificate handling
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