11/30/2023 2:46 AM | |
Joined: 11/30/2023 Last visit: 12/1/2023 Posts: 6 Rating:
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Dear Frend i also get the same error.My system includes S7-400 and ET200 CPU.In that ET200 there are some analog input modules (6ES7331-7PF11-0AB0), the system works normally.At that time, the production line was shut down for maintenance and an incident occurred that day.The first module has a flashing SF light.Then about 4 hours later, 2 more modules also had the SF flashing error.When testing the signal, interference was detected for a period of 2 hours and then signal loss.When checking the module's channels, the voltage is close to zero in the module's channels.I want to know the possible cause of signal interference and module failure.Thank ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 11/30/2023 12:58:20New subject after splitting |
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11/30/2023 2:51 AM | |
Joined: 11/30/2023 Last visit: 12/1/2023 Posts: 6 Rating:
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I sent some more pictures of the signal when something went wrong |
11/30/2023 2:53 AM | |
Joined: 11/30/2023 Last visit: 12/1/2023 Posts: 6 Rating:
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11/30/2023 2:54 AM | |
Joined: 11/30/2023 Last visit: 12/1/2023 Posts: 6 Rating:
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11/30/2023 12:59 PM | |
Joined: 6/19/2017 Last visit: 8/5/2024 Posts: 8175 Rating:
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The second thread with the subject Analog input module source error is published within the conference SIMATIC S7-400 / S7-400H / S7-400F /FH. Jen_Moderator |
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