5/25/2021 10:46 AM | |
Posts: 4 Rating: (0) |
I had a similar problem, with program loss! We use PLC 1215DC/DC/DC with 24V power supply with battery backup (Meanwell AD- 55 series) After 2 years of proper operation, the PLC went in stop mode. When I connected with TIA portal v13 the program was lost. I think that the problem is in the power supply, because we have installed a lot of controllers (with many different kind of power supplies) and we have this problem only 2 times, where we used exactly this series of power supply. Is it possible that we have this issue because of the power supply type or there might be another reason? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 05/25/2021 14:19:23New subject after splitting |
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5/25/2021 3:05 PM | |
Joined: 9/24/2008 Last visit: 7/30/2024 Posts: 106 Rating: (4) |
We use PLC 214/AC/DC/RLY, Omron power supply and in two cases there was an APC UPS installed, in other there was no 230V line backup, so I'm more oriented to something that happens on field. But still have no answer.
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Last edited by: Vippi at: 05/25/2021 15:06:27 |
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This contribution was helpful to1 thankful Users |
5/25/2021 3:18 PM | |
Joined: 6/19/2019 Last visit: 9/5/2024 Posts: 697 Rating: (73) |
Maybe in that time near was lightening? Maybe this occur your PLC in STOP mode and memory reset. Also try read this TOPIC about Brown out sympthom. |
5/25/2021 4:36 PM | |
Joined: 7/7/2010 Last visit: 9/23/2024 Posts: 15217 Rating: (2417)
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What was in the PLC diagnostics buffer? It should not have been empty.
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science guy |
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5/27/2021 8:02 AM | |
Posts: 4 Rating: (0) |
Thank you for your answer! But unfortunately, I did not copy the buffer from the PLC and now I don`t have access to it! As soon as I have access, I will copy the buffer and I will post the contents here! |
5/27/2021 8:04 AM | |
Posts: 4 Rating: (0) |
I am not sure, but the probability is too small.
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