6/7/2017 8:02 AM | |
Posts: 57 Rating: (0) |
Dear Experts, I am facing a problem with CPU 314C-2DP for Redudancy. In My project I am Using CPU 314C-2DP with CP 343-1 lean. with redundancy, I have Downloaded the program in both PLCs in stop mode. Then I Put 1 PLC in Run mode. It goes in mode. When I Put another PLC (Redundant) in Run mode Previous PLC Automatically goes to stop mode. Means at a time only one PLC remain in Run Mode. In Diagnostic buffer I see the error "Stop caused by Priority Class system" and "Area Length Error when reading" Please help me how can I overcome these errors. Here I have attached the Diagnostic buffer log of the CPU which in STOP mode. Friends please go through it and help me.. AttachmentDiagnose.txt (286 Downloads) |
6/7/2017 1:57 PM | |
Joined: 12/9/2010 Last visit: 10/8/2022 Posts: 623 Rating: (77) |
Hi niksss, After deleting OB121, go to CPU properties online[Ctrl+D with CPU connected]. In Diagnostics buffer, select the stop causing entry and press 'OPEN BLOCK'. By this process, u will go to location which caused CPU to go to stop. |
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10/5/2018 2:32 PM | |
Joined: 12/15/2016 Last visit: 1/23/2023 Posts: 1 Rating: (0) |
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Last edited by: shah123 at: 10/5/2018 2:33:40 PMLast edited by: shah123 at: 10/6/2018 8:02:56 AM |
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