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S7-1200 Error in lower-level componet

Created by: Aure1io at: 9/30/2022 2:43 AM (7 Replies)

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9/30/2022 2:43 AM	Rate (0)
Aure1io Member Joined: 8/28/2021 Last visit: 5/11/2024 Posts: 30 Rating: (3)	Hello everyone, Do you know how I can solve this error "Error in lower level componet"? I am starting to use a 1211C (211-1AE40-0XB0). The equipment is new, but after I made a change in the original IP, now the TIA portal (V16) shows "Error in lower level componet". The PLC goes into RUN mode and apparently works, but this is very strange. Please see the attached screen print. I searched in the siemens forums, but I see that this error can be generated by multiple causes. I suspect problems in the firmware version of the PLC (version 4.5), because the version of TIA portal that I have supports up to CPU version 4.4. But I'm not sure and I really don't know how to solve it. Thank you in advance, Attachment Error in lower-level componet S7-1200.png (641 Downloads)

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9/30/2022 6:29 AM	Rate (0)
Stefan Arcularius Platinum Member Joined: 1/21/2013 Last visit: 11/7/2024 Posts: 3248 Rating: (505)	Hi Aure1io, the orange circles right to 'Program blocks' and 'PLC Tags' are showing, that there are differences between your project and the data inside the PLC. Since your Screenshot does not show the hardware, I can't say something about their state. To got more information about the hardware, please use 'Online & diagnostics'. Kind regards Stefan

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10/1/2022 12:15 AM	Rate (0)
Aure1io Member Joined: 8/28/2021 Last visit: 5/11/2024 Posts: 30 Rating: (3)	Hi Stefan, Thanks for answering. I followed your instructions, check in online & diagnostics. Now I understand that I am doing something wrong when I change the IP address of the PLC, but I still don't know what it is. Today it caught my attention that the plc did not save the IP address that was assigned yesterday (192.168.0.200) and when I turned it on it had the factory IP address (192.168.0.1), it did not show the error message. The error is generated after I change the IP address. Please see the attachments. Best regards, Attachment Mant demanded Error in lower-level componet S7-1200.png (619 Downloads)

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10/1/2022 6:02 PM	Rate (0)
Aure1io Member Joined: 8/28/2021 Last visit: 5/11/2024 Posts: 30 Rating: (3)	Hi Stefan, I think you will be able to understand the problem much better if you see the attached videos (Part 1). Thanks in advance. Attachment Part 1.mov (722 Downloads)

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10/1/2022 6:03 PM	Rate (0)
Aure1io Member Joined: 8/28/2021 Last visit: 5/11/2024 Posts: 30 Rating: (3)	(see Part 2) Attachment Part 2.mov (633 Downloads)

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10/3/2022 2:13 PM	Rate (1)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 11/6/2024 Posts: 15385 Rating: (2443)	Is there an HMI, or any other device connected to the PLC? When you modified the IP address in the project, were you offline when you downloaded the PLC? Did you modify the IP address while online with the PLC but not in the project? The best way to modify the ip address is while offline, change in the project, and then change any profinet devices that communicate with the PLC so they can also communicate with the PLC. Lastly, download hardware and software changes to every profinet device in the PN subnet of your PLC. Aure1io Hi Stefan, Thanks for answering. I followed your instructions, check in online & diagnostics. Now I understand that I am doing something wrong when I change the IP address of the PLC, but I still don't know what it is. Today it caught my attention that the plc did not save the IP address that was assigned yesterday (192.168.0.200) and when I turned it on it had the factory IP address (192.168.0.1), it did not show the error message. The error is generated after I change the IP address. Please see the attachments. Best regards,
	science guy
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10/3/2022 3:06 PM	Rate (0)
Aure1io Member Joined: 8/28/2021 Last visit: 5/11/2024 Posts: 30 Rating: (3)	Hi 0_Einstein, Thank you very much for the help, the CPU is already working fine. I did wrong the procedure to change the IP address. The PLC was online when I changed the IP address and this generated some conflict in the PLC configuration. Best regards,

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This contribution was helpful to 1 thankful Users Stefan Arcularius

1/24/2024 11:51 AM	Rate (0)
Aivars Regular Member Joined: 1/26/2017 Last visit: 4/18/2024 Posts: 65 Rating: (3)	Thank You all! Had the same problem!

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