Error in communication between F-CPUs/F-runtime groups F-monitoring time exceeded
Created by: namnv@vn at: 11/15/2023 2:55 AM (6 Replies)
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| 11/15/2023 2:55 AM | |
Joined: 8/26/2018 Last visit: 6/17/2024 Posts: 1 Rating:
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Dear all, I am having a problem with PnPn coupler communication. I would brief the situation: 2 PLC S7 - 1518F connect together witn PnPn Coupler. 1 side was programmed with TIA V14 and other side with TIA V16. It was working for long time ago but currently, the error "F-monitoring time exceeded F-runtime group 1" is frequently happening. It is about 6 - 10 times per day. Somtimes, it is very hard to reset. Even, just hit on acknowledge button then it happens again immediately. First, i thought it was issue with the lengt of profinet cable between 2 PnPn Couplers. The lenght was 73 meters, then i put a repeater (Siemens switch) at the middle of cable. (on 22 - Oct - 2023). Everything was fine after this day. But from 30 -Oct, the issue happening again.... Here is the buffer diagnostic i exported from PLC: 6 of 3200; Event ID: 16# 0D:75D4 Error: Safety program: Error in communication between F-CPUs/F-runtime groups F-monitoring time exceeded F-runtime group 1 HW ID of the transfer area: ++CC1+-KF06 / F-Send IO. Incoming event Event type: Error 8/31/2023 8:33:25.158 PM (Coding: 16# 20 01 00 1E 17 80 7B 18 86 96 38 C8 75 D4 00 00 00 00 00 01 00 00 01 BF 00 0D 00 00 71 09 71 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00) So far now, thousand of this error in PLC bufffer. I hope someone can give me a suggestion with this problem
AttachmentMC_Diagnostics.txt (898 Downloads) |
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| 3/14/2024 8:16 PM | |
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Posts: 1 Rating:
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Was this resolved? |
| 7/24/2024 2:31 PM | |
Joined: 9/26/2020 Last visit: 7/24/2025 Posts: 3 Rating:
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Having the same issue aswell. Any fixes so far? |
| 2/1/2025 5:12 AM | |
Joined: 12/8/2021 Last visit: 3/28/2025 Posts: 1 Rating:
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I am also having the same issue. Can someone help. |
| 4/7/2025 2:16 PM | |
Joined: 11/7/2022 Last visit: 8/12/2025 Posts: 1 Rating:
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Any fix? |
| 6/8/2025 11:23 AM | |
Joined: 2/8/2022 Last visit: 6/8/2025 Posts: 1 Rating:
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Similar problems, frequent malfunctions |
| 6/9/2025 4:03 PM | |
Joined: 9/21/2012 Last visit: 9/3/2025 Posts: 4702 Rating:
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What is your problem, screenshot of the error? |
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