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No connection between Open controller PLC and Wincc runtime

7/16/2025 7:06 AM	Rate (0)
AutoGen_1879152 Joined: 6/6/2025 Last visit: 12/4/2025 Posts: 1 Rating: (0)	I am setting up an Open controller PLC SP1515-F with WinCC runtime V17. I have done it many times with older versions without this problem. I am unable to get connection between PLC and WinCC runtime. i have tried making a separate HMI connection working on ethernet/S7ONLINE protocol and that works fine but the generated Softbus connection between PLC software controller and WinCC runtime is not working. the Controller is running firmware V21.9 and runtime is V17. i am programming with TIA V20 I expect this has to do with some security measures added in TIA V20 and the hardware. Something that was not the available in TIA V16

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7/17/2025 6:09 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 12/19/2025 Posts: 16612 Rating: (1943)	Hello In this FAQ there are information about the security features in V20 and how do deal with https://support.industry.siemens.com/cs/de/en/view/109955142 Bye Murof
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