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Y-Link and Sinamics

2/19/2013 9:59 PM	Rate (0)
r_guareschi Experienced Member Joined: 1/28/2006 Last visit: 12/15/2025 Posts: 11 Rating: (0)	I have a problem with the configuration of a Y-link (6ES7197-1LA04-0XA0). I am using the software step 7 5.5 My system 'consists of two CPU 414-5H and Y-Link is connected to the two MPI/DP ports as DP. I have to connect 18 sinamics inverter with CU CU240E-2DP to the redundant plcs. The problem: the cpu can't activate the nodes, or I can only communicate with a few nodes. Is there some special configuration? thanks.

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2/19/2013 10:38 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 1/1/2026 Posts: 12479 Rating: (2722)	Hello r_guareschi; How much data do you exchange between the CPUs and the drives, what size telegrams do you use? There is a limit of 244 bytes OUT/244 bytes IN for the configuration of a Y-Link, as it is seen as a single Profibus-DP slave, as seen by the redundant CPUs. The following discussion should c;arify this issue: Y-Link calculation if this does not resolve your problem please give us some screencaptures of your problem with a more defined description. Hope this helps, Daniel Chartier

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2/20/2013 9:55 AM	Rate (0)
r_guareschi Experienced Member Joined: 1/28/2006 Last visit: 12/15/2025 Posts: 11 Rating: (0)	hi Daniel, tanks for your attention. My project, 18 inverters, telegram 350=8 byte, = 144 byte. There are two instruments (NEMO) 2 x 32 byte, so the total count is 208 byte. The DP ports (DP(1), DP(2) are for ET remote I/O, they work fine. The MPI/DP ports are configured as DP, DP(3), DP(4) for the Y-link I've tried connect the Y-Link to DP(1)/DP(2) with no result. Sometimes I can control few inverter. The project Attachment full_project.jpg (295 Downloads)

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2/20/2013 10:00 AM	Rate (0)
r_guareschi Experienced Member Joined: 1/28/2006 Last visit: 12/15/2025 Posts: 11 Rating: (0)	diagnosys Attachment interface_diag.jpg (305 Downloads)

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2/20/2013 10:01 AM	Rate (0)
r_guareschi Experienced Member Joined: 1/28/2006 Last visit: 12/15/2025 Posts: 11 Rating: (0)	slave diag Attachment slave_diag.jpg (295 Downloads)

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2/22/2013 9:16 PM	Rate (0)
r_guareschi Experienced Member Joined: 1/28/2006 Last visit: 12/15/2025 Posts: 11 Rating: (0)	problem solved I used the GSD file downloaded from sinamics with parameter p0804 = 12, but doesn't work. path: / additional field devices / drives / sinamics I redid the project using the GSD provided with step 7 and now it works. path: / Sinamics / SINAMICS G120

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This contribution was helpful to 2 thankful Users S_Moderator dchartier

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