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57 S7-300 communicate with wincc7.0

Created by: aru at: 6/14/2009 7:59 AM (5 Replies)

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6/14/2009 7:59 AM	Rate (0)
aru Advanced Member Joined: 2/26/2007 Last visit: 12/12/2024 Posts: 16 Rating: (1)	Dear Experts, We are having 57 remote PLC station(S7-315).These all 57remote station are having software redundancy.The distance between the each stations will be around 5Km to 10Km. I need to establish the communication between these all station and withone or two operating station.The operating station having wincc7.0 SCADA software. Please Let me know by using which protocol, we can achieve this task. Can Anyone provide System configuration suggestionforthis application???? Aru

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6/14/2009 8:54 AM	Rate (1)
Eastern Posts: 557 Rating: (64)	hi i think you go with profibus to OLM protocal.(fibre optics link).so you can achive this task.(5KM) Find the link, hope this will help.......... Configuration rules for "10-Mbit shared LAN" (transceivers, OLMs, etc.) SIMATIC NET Twisted-Pair and Fiber-Optic Networks http://support.automation.siemens.com/WW/view/en/14650423 http://support.automation.siemens.com/WW/view/en/27069465 http://support.automation.siemens.com/WW/view/en/8763736 regards
Eastern Posts: 557 Rating: (64)	Last edited by: Eastern at: 6/14/2009 8:58 AM
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6/15/2009 12:05 AM	Rate (0)
daga Gold Member Joined: 3/18/2009 Last visit: 12/6/2024 Posts: 306 Rating: (94)	aru We are having 57 remote PLC station(S7-315).These all 57remote station are having software redundancy.The distance between the each stations will be around 5Km to 10Km Wow, what a configuration! We had proposed for a similar configuration a couple of years back. Now laying 500km of optical cable and maintaining it was not feasible. So we had gone for direct uplink to a satellite through VSAT. We used a ethernet CP (343-1) to connect to VSAT router forming a WAN.In tests it worked fine, though we didn't implement it as the order was awarded to a different company. Now I don't think WinCC can support 57*2=104 different IE channels (maximum 64). So you can buy a couple of 400 PLCs with a few CP443s attached to each of them. These S7-400 PLCs are to talk to these redundant 57 remote PLCs over the WAN and then in turn communicate to your WinCC station. Another solution for your case is probably using GPRS. Sinaut telecontrol. I have never worked with them but may be they can suit your need if you have good GSM network available around all of your 57 remote location.

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6/15/2009 1:55 AM	Rate (0)
H-H Platinum Member Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (309)	Hello, Just to comment on number of connections. I think the number is just 57 not 57*2. In SWR, only oneconnection is configured in WinCC and a C script is used to switch between the 2 PLCs by changing IP address but still on the same connection. However, 57 connectionsare still representing a very big communication load. The solution proposed by Daga is very good. CPUs dedicated for communication are recommended in such cases. Best regards. H-H Attachment SWR_WinCC_Connection.pdf (393 Downloads)

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This contribution was helpful to 1 thankful Users daga

6/15/2009 8:57 AM	Rate (0)
daga Gold Member Joined: 3/18/2009 Last visit: 12/6/2024 Posts: 306 Rating: (94)	two errors I made, 1. 57*2 is 114, maybe I should go back to primary school 2. Yes, it requres only one connection for SWR redundnancy as pointed out by H-H in case of WinCC.

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6/15/2009 10:47 AM	Rate (0)
aru Advanced Member Joined: 2/26/2007 Last visit: 12/12/2024 Posts: 16 Rating: (1)	Dear friends, Thanks for ur reply. I am going to workoutmy configuration based on daga's suggestion.

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