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Could I treat S7-200 as my distributed I/O role?

Created by: Torpedo1215a at: 8/28/2008 5:49 AM (5 Replies)

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8/28/2008 5:49 AM	Rate (0)
Torpedo1215a Advanced Member Joined: 3/22/2008 Last visit: 2/25/2024 Posts: 63 Rating: (0)	thanks.

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8/28/2008 2:29 PM	Rate (0)
JMJ Posts: 487 Rating: (45)	Can you please explain what you mean?
JMJ Posts: 487 Rating: (45)
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8/28/2008 4:44 PM	Rate (0)
Torpedo1215a Advanced Member Joined: 3/22/2008 Last visit: 2/25/2024 Posts: 63 Rating: (0)	Hi, We usually use ET200 as distributed I/O. In some cases, they don't many I/Os, so we think it would be a low-cost version if we could connect to S7-200 and its I/Os in WinAC. Never try before, is it possible? I found several S7-200 devices under "Profibus DP Slave" of HW Config in Step 7. It may or may not be able to be distributed I/Os as ET-200.

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8/28/2008 4:50 PM	Rate (1)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/11/2024 Posts: 8768 Rating: (1170)	Hi, To connect a S7-200 to Profibus, you need an EM277. Then your S7-200 is a Profibus slave. The master will communicate some bytes, they will get in V-memory of S7-200. So you should programm in S7-200 to move them to Outputs and move inputs to V-memory. Best regards, Wizard

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9/1/2008 1:34 PM	Rate (0)
Torpedo1215a Advanced Member Joined: 3/22/2008 Last visit: 2/25/2024 Posts: 63 Rating: (0)	thanks.

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9/9/2008 12:15 PM	Rate (0)
marcsinclair Posts: 49 Rating: (5)	Hi, This is unlikely to be a low cost solution, and adding the extra layer will cause other problems, timing, security and documentation come to mind. Regards
marcsinclair Posts: 49 Rating: (5)
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