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Changing the Mode of a Profibus node from the user program.

11/12/2014 5:02 PM	Rate (0)
MLAWR Member Joined: 10/23/2006 Last visit: 3/20/2025 Posts: 4 Rating: (0)	Hello, Is it possible to connect / disconnect from cyclic processing, nodes on the integrated Profibus network of our CPU 315-2 PN/DP? and if so which block (classic S7) should I use. I found how to achive this for nodes connecing via the CP342-5 using DP_CTRL (FC4), but this doesn't seem to work for the integrated DP network. All help is greatly appreciated. Best Regards Michael

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11/12/2014 5:52 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 9/15/2025 Posts: 6875 Rating: (1368)	MLAWR Hello, Is it possible to connect / disconnect from cyclic processing, nodes on the integrated Profibus network of our CPU 315-2 PN/DP? and if so which block (classic S7) should I use. I found how to achive this for nodes connecing via the CP342-5 using DP_CTRL (FC4), but this doesn't seem to work for the integrated DP network. All help is greatly appreciated. Best Regards Michael Hello MLAWR, For integral DP port , you can try SFC12: Disabling DP slaves after startup of the CPU Enabling a disabled DP slave with SFC 12 "D_ACT_DP" Notes for the use of the system function SFC12 "D_ACT_DP" I hope this helps, Hamid Hosseini
	Last edited by: hdhosseini at: 11/12/2014 5:54 PM Demo Channel on Youtube
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11/12/2014 6:01 PM	Rate (0)
MLAWR Member Joined: 10/23/2006 Last visit: 3/20/2025 Posts: 4 Rating: (0)	Thanks hdhosseini, I'll give that a go in the morning. Best Regards Michael

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