1.5
Establishing a connection to the OPC UA client
Before establishing a connection to the OPC UA client
• You have installed an OPC UA client, for example: UAExpert installed
The OPC UA connection must have the following properties:
– Certificate management
– Security policy Basic256Sha256
– Message security settings: Sign & Encrypt
– Authentication: User name and password
• You have created a user for the OPC UA client on the SITRANS CC240 web server.
When calling the web server (Page 52) for the first time, you are prompted to create a user
for the OPC UA client.
• You know the IP address and port of the SITRANS CC240.
SITRANS CC240 web server: "OPC UA Server > OPC UA Overview > Endpoint URL"
The OPC port number is 4840. This means when using the prescribed IP address, the address
of the OPC UA server is: opc.tcp://192.168.200.1:4840
Procedure
1. Open the OPC UA client.
2. Enter the IP address and the port of the SITRANS CC240.
Default IP address: 192.168.200.1
Port: 4840
3. Select the Basic256Sha256 security policy.
4. Select the message security settings: Sign & Encrypt
5. Log on with the user information that you have assigned in the SITRANS CC240 web server.
Calling the SITRANS CC240 web server (Page 52)
6. Select a permitted timeout of 60 s.
7. Connect the OPC UA client to the SITRANS CC240 web server.
8. Check and confirm the certificate used in the OPC UA client.
9. Call up the SITRANS CC240 web server.
Calling the SITRANS CC240 web server (Page 52)
10.Select "OPC UA Server > Certificate Management" from the main menu.
11.Refresh the page.
12.Verify and confirm the OPC UA client certificate on the SITRANS CC240 web server.
Getting started
1.5 Establishing a connection to the OPC UA client
SITRANS CC240 and SITRANS MX300
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Operating Instructions, 06/2021, A5E47280695-AB
