10/13/2016 7:23 PM | |
Posts: 5225 Rating: (1192)
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Hi there.
The Profibus (DP) connector you speak of does not show that Profibus is used. The communication is PPI - as you can link through the connector to the PC with the Microwin software. To me the below recommendation will serve you very well.. provided you have an MPI port on the {new} PLC. There is no need to add hardware and no need to make any changes on the S7-200 side. I think Ste39 earned a rating for his suggestion.
The S7-400 will use the "get" function to fetch data and "put" to place data. That means the communication will be software driven from the S7-400 side. What you need to know is the PLC network address and the address of the data you are accessing. This is the road that I would take - it is the least interference into how the system works now. BUT make VERY sure you do not write to sensitive data. Greetings. |
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