Communications services
3.6 Secure Communication
Communication
46 Function Manual, 12/2017, A5E03735815-AF
Creating or assigning certificates
You create certificates for various applications in STEP 7 for devices with security properties,
such as an S7-1500 CPU as of firmware V2.0.
The following areas in the Inspector window of the CPU allow the creation of new certificates
or the selection of existing ones:
● "Protection & Security > Certificate manager" - for the generation and assignment of all
types of certificates. TLS certificates for Secure Open User Communication are preset for
the generation of certificates.
● "Web server > Server security" - for the generation and assignment of Web server
certificates.
● "OPC UA > Server > Security" - for the generation and assignment OPC UA certificates.
Figure 3-11 Security settings for an S7-1500 CPU in STEP 7
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