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CP 343-1: S7 communications does not start

Created by: HansAST at: 8/20/2009 5:49 PM (2 Replies)

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8/20/2009 5:49 PM	Rate (0)
HansAST Experienced Member Joined: 5/24/2009 Last visit: 3/27/2024 Posts: 90 Rating: (3)	I am trying to configure a 313C cpu with a new CP-343-1 instead of a 343-1-lean because I want to configure Profinet. On an empty PLC (nothing but the hardware config) I can configure the TCP/IP and access it with the PG. However, when I add profinet I/O system then I always get a SF LED and the diagnostic buffer specifies: Profinet I/O cannot be started. In NCM: operating mode is shows Operating mode STOP and show as S7 communication not started.. not defined.. This is also the case for Send?Recv and System connection.. Am I missing something obvious??? Hans

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8/20/2009 8:53 PM	Rate (1)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (308)	Hello, When uning a CP343-1 as Profinet controller oder device, you must include specific FCs for the data exchange with the CPU. Have a look to this FAQ http://support.automation.siemens.com/WW/view/en/26558253
	Best regards jklm Suggestion was helpful? Feel free to rate it.
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9/3/2009 1:00 PM	Rate (0)
HansAST Experienced Member Joined: 5/24/2009 Last visit: 3/27/2024 Posts: 90 Rating: (3)	Thanks for your reply. Curiously, I got the CP working by 'starting' S7 communications in NCM. I was aware of the way the CP communicates with the PLC, but thanks anyway...
	Last edited by: HansAST at: 9/3/2009 1:01 PM
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