4/16/2024 10:12 AM | |
Joined: 3/11/2019 Last visit: 8/30/2024 Posts: 1558 Rating:
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Hi, at a first short test you can check this setting. Why is it not possible to establish a connection to a CPU with firmware version 2.9/4.5 from an HMI panel (Basic, Comfort or Unified) or WinCC Runtime Advanced V17 or lower?regards sancruz |
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4/16/2024 10:14 AM | |
Joined: 5/6/2022 Last visit: 8/13/2024 Posts: 439 Rating:
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Hi In these cases, you need to know the following information to see if you can find where the problem is: - Does the date and time configured in the PLC and HMI match? - Within the PLC properties, is there any HMI access protection configured with a password? If so, has this password been set in the "HMI connection" so that the panel can access it? - In the PLC variables table, do the variables that it shares with the HMI have the "Accessible from HMI/OPC" and "Writable from HMI/OPC" checks marked? On the other hand, I leave you a series of links that may be of interest to find the problem, I share them below: "No connection to PLC after WinCC Panel Images V17 Update 6" Can you review and comment? Best regards! |
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