Siemens SIMATIC RTU3041C Manual page 68

2 Engineering
11. Switch off the encryption of the Telecontrol protocol (for using VPN
connections)
"Project > Edit > Configure connection > encryption > None or HC-128".
12. Click "Save & activate" and confirm the action in the drop-down list.
13. Configure the IPT listener port (55097) of the TeleControl server:
"TCSB system > TCM > Listener ports > IPT listener-port".
Securely Connecting RTU3041C to TeleControl Server Basic
Entry ID: 109739240, V3.0,
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