8/5/2015 5:08 PM | |
Posts: 123 Rating: (5) |
Hello,
- The display cannot get data from the CPU (MPI network) - I cannot go online (MPI) - PS405 4A led 24VDC blink, but I can reset it with the FMR button, there are no more errors led - I fix the problem by disconnect the power supply and cpu, cpu reset, hardware and software download I guess it is a problem with the CPU and the CPU should be changed. But I'm not sure, can anyone confirm it. Thank you.
This is the hardware config:
This is the diagnostic buffer of module CPU 414-1: AttachmentDiagnostic buffer.txt (453 Downloads) |
Last edited by: Min_Moderator at: 8/6/2015 8:59:59 AMMove Diagnostic Buffer to attachment |
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8/5/2015 8:26 PM | |
Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)
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Hello, The only suggestion that can be wise here would be checking your PS solely without any load i.e remove all modules and test it without the rest of them on main rack.If it is still faulty, wait a time (as mentioned in the following manual) and run it again.If it works perfectly, add CPU and test in this case, you need to download your program again. https://support.industry.siemens.com/cs/mdm/1117740?c=12297191819&lc=en-WW
As clearly mentioned in your buffer, you started your CPU without battery, if you use FLASH external memory check its content with a SIMATIC Field PG or write valid data to it.You also need battery for for some reasons in your PS (I guess one from width). Add the modules one by one and see which one cause this problem. If you have problem with CPU , just go online after memory reset and copy the system data there. I hope this helps, hdhosseini |
This contribution was helpful to1 thankful Users |
8/14/2019 9:47 PM | |
Posts: 1 Rating: (0) |
Hi there, So, We had same problem in our facilty. It was possible to download hard & software configurations and run CPU back. Well, how can we proceed if this problem happen again? Please see attached buffer diagnostic from that time. Regards PLC Technician AttachmentDiagnose1.txt (318 Downloads) |
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