11/9/2020 9:35 PM | |
Posts: 39 Rating: (0) |
Hello all Please help me out as I am in a remote site in a critical situation. The CPU 928B was replaced as it was faulty, I transferred the user program from the PG to the new CPU. However, the new cpu is still in stop mode (stop LED flashes slowly) plus the BASF LED is lit constantly. I have checked the Istack (depth level1 ) as well as Bstack. They show no reason causes the interruption( kindly see the three attachments) I would most grateful if you help as I am in very critical situation (the Gas Turbine stopped) Note; I have transferred the user program from and to CPU many times in the past with no problems Impatiently forward to your responses AttachmentIBSTACK.pdf (522 Downloads) |
Last edited by: SaedAlhabbashi at: 11/09/2020 21:37:37Last edited by: SaedAlhabbashi at: 11/09/2020 22:02:02Last edited by: SaedAlhabbashi at: 11/09/2020 22:42:48 |
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11/9/2020 9:40 PM | |
Joined: 12/18/2014 Last visit: 9/25/2024 Posts: 33835 Rating: (4205) |
There are no attachments ... |
11/9/2020 10:44 PM | |
Posts: 39 Rating: (0) |
I have now zipped and attached. Please check the attached PDF Many thanks in advance |
11/9/2020 11:05 PM | |
Posts: 39 Rating: (0) |
Please find the attached file
AttachmentIBSTACK.pdf (500 Downloads) |
11/11/2020 1:58 AM | |
Joined: 10/7/2005 Last visit: 9/25/2024 Posts: 3022 Rating: (1054)
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A few suggestion from my side: To start with, grab the 928 Programming manual, consult chapter 5.3 and you realise that:
Now go to chapter 5.5.2 and also check the status of RS3 and 4 to work out what the root cause is. I suspect that a faulty I/O card as the reason, but let us know either way what you find. |
Cheers |
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11/12/2020 1:35 PM | |
Posts: 39 Rating: (0) |
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Last edited by: SaedAlhabbashi at: 11/12/2020 13:36:51 |
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11/13/2020 1:31 AM | |
Joined: 10/7/2005 Last visit: 9/25/2024 Posts: 3022 Rating: (1054)
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Arguably the easiest way is to go the PLC menu in Step 5 and output the PLC memory as of address EA03 which contains the RS3 content for a 928B (and EA04 contains the RS4 content, ref chapter 8.3.4 of the previously linked 928B manual). The "PLC Sys Parameters" which is also available from the PLC menu may contain RS3 and 4 info too, but I'm not fully sure (it's been too long and I don't have a test S5 handy to check this myself). |
Last edited by: fritz at: 11/13/2020 01:32:14Cheers |
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