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comunication problem

6/11/2012 11:40 AM	Rate (0)
Harekrishna Posts: 1 Rating: (0)	respected Sir/mam When i communicate Betwwen S7-200 and OP77A with Profibus and MPI cable then the communication terminate immidiately. My project can not transfer to HMI.please reply me what is the problem behind this.
Harekrishna Posts: 1 Rating: (0)
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6/11/2012 11:53 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Hello, I guess you have problems transferring a project to HMI Perhaps this link might help: how can you transfer a WinCC flexible project via MPI/PROFIBUS to a Windows-based panel? Best regards, Wizard

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6/11/2012 12:45 PM	Rate (0)
Wishme Posts: 80 Rating: (5)	Dear Harekrishna, S7-200 can't communicate on Profibus with OP77A. For MPI communication, pls check the address of the PLC and PG, both should have unique numbers. Also when the HMI is changed to transfer mode, PLC communication will be disturbed naturally. Vishp.
Wishme Posts: 80 Rating: (5)
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