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1/10/2013 9:25 AM | |
Joined: 9/28/2005 Last visit: 8/27/2024 Posts: 2957 Rating: (242)
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Hi, I remember long time ago there was a thing called Tips and Tricks for S7-200 and if I'm not worng there was documentation and examples on CPU<->CPU communication with S7-200. You can check those and maybe you can find something. Download link is hereWhat are S7-200 Programming Tips and where can I obtain them?
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Best regards, |
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1/10/2013 11:47 AM | |
Joined: 9/27/2006 Last visit: 9/21/2024 Posts: 12282 Rating: (2684) |
Hello m. shoaib khatana; The S7-200 system manual contains much information on S7-200 networking, amongst other things. S7-200 System Manual The attached docment is extracted from chapter 7, "Communication over a network". So: using the PLC ports, the maximum distance allowed (whatever protocol is used) is 50 m. You can use repeaters to extend by lengths of 50 m (if there are nodes between the repeaters) or up to a full kilometer if there are no nodes between the repeaters, Edit: the manual proposes an EM 277 as an alternative; this is a Profibus-DP slave module that would require a Profibus-DP master as a data concentrator. A S7-200 cannot be a Prifus-DP master, so for your application you would need at least a S7-313C-2DP (smallest Profibu-enabled S7-300 CPU). So the cost would become more that the price of all your S7-200s already in hand. D.C. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 1/10/2013 7:08 PM |
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