6/18/2020 4:37 AM | |
Joined: 2/4/2015 Last visit: 6/18/2024 Posts: 64 Rating:
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Dear all, We have s7-400H system. Can we replace an active bus module online? Will it create an issue? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 06/18/2020 06:19:03New subject after splitting |
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6/21/2020 1:30 PM | |
Joined: 12/10/2018 Last visit: 6/27/2024 Posts: 109 Rating:
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Hello dear Surendhar_M You can follow the attached file step by step. Best regards AttachmentS7_400_h_en_en-US.pdf (287 Downloads) |
6/21/2020 4:38 PM | |
Joined: 9/27/2006 Last visit: 9/4/2024 Posts: 12282 Rating:
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Hello surendhar_M; In the manual proposed by fariborz_M, the following chapter (17) discusses System Modifications during Operation you should pay special attention to the following quote, in the screenshot below. Think about what the active bus module does in the ET 200M: it connects the IMs and the SMs on a single backplane bus, if you remove one of the bus modules online you are cutting the power and communications to the downside modules and the CPU will declare a fault, possibly sending it to STOP mode. Here is the link to the complete manual: https://support.industry.siemens.com/cs/ww/en/view/82478488 Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 06/21/2020 16:48:46 |
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6/22/2020 6:15 AM | |
Joined: 12/10/2018 Last visit: 6/27/2024 Posts: 109 Rating:
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Hello dear Daniel Chartier Thanks for your further explanation. My submitted file is exactly the part of the document that you sent
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6/23/2020 12:31 PM | |
Joined: 2/4/2015 Last visit: 6/18/2024 Posts: 64 Rating:
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Thank you both. I wanted to replace the last active bus module in the Node. So thought that it wont affect the system, Fault came as soon as I removed the Active bus module. CPU did not went to Stop. Then I found the procedure for replacing Active bus module. It is always recommended to remove the active bus module after de energising it. Regards Surendhar M AttachmentReplacing Active Bus Module.pdf (274 Downloads) |
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