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DP Slave not accessible

8/9/2021 10:09 AM	Rate (0)
jdsl Posts: 1 Rating: (0)	Hello. I have a problem with the S7-300. After turning off the power and turning on again, the machine stopped working. I have errors like in the attachments. The inverters are Emerson SP 1404. All pictures are here [snip] Thanks for any suggestions and hints. Best regards Dan. Attachment wetransfer_simatic-s7-300_2021-08-09_0801.zip (488 Downloads)
jdsl Posts: 1 Rating: (0)	Last edited by: Jen_Moderator at: 08/09/2021 13:14:13 Removed link and added file as an attachment.
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8/9/2021 3:30 PM	Rate (0)
Duris_I Diamond Member Joined: 4/28/2015 Last visit: 4/19/2025 Posts: 10876 Rating: (837)	Hello, didn't check your attachment but general advice is for first to have all required diagnostic OBs included in your prj, also downloaded to PLC. They can bypass and help establish or not stop your PLC if some error is present. You need then check where problem is.
	With best regards... Ivan Duris Flight: OMICO
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8/11/2021 12:45 AM	Rate (0)
Hati Platinum Member Joined: 9/21/2012 Last visit: 9/4/2025 Posts: 4702 Rating: (509)	Looks like Profibus connection is not ok. Did you upload this from a working system or is it test on old equipment?

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