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software redundancy with y link

Created by: Saggy at: 3/10/2013 12:21 PM (1 Replies)

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3/10/2013 12:21 PM	Rate (0)
Saggy Silver Member Joined: 11/8/2011 Last visit: 8/28/2023 Posts: 387 Rating: (43)	Dear Experts, I have software redundancy cpu 315-2dp with ET200 M bundles for remote io's . We have requirement to connect profibus slaves .how can i connect with Software redundant CPU with DP slaves Whether its possible i can use Y link Please guide Thanks in Advance

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3/10/2013 5:48 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/21/2023 Posts: 12152 Rating: (2624)	Hello Saga; You cannot use a Y-Link with a SWR system. See the comments (and frustrations ) of some forum members in the following discussion: /tf/WW/en/Posts/31590#top The only way you can use a single-interface Profibus-DP slave on a SWR system is to set it up in the non-redundant part of your program. See the SWRmanual for more information: SIMATIC S7-300/S7-400 Software redundancy for SIMATIC S7 See the following section in particular: 5.9 Data blocks DB_A_B and DB_B_A for the exchange of non-redundant data Hope this helps, Daniel Chartier

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