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Communication OP77A and CPU314

3/17/2022 3:56 PM	Rate (0)
phucxdtd Experienced Member Joined: 8/20/2016 Last visit: 12/12/2025 Posts: 100 Rating: (0)	My old system use OP7 communication with s7-300 cpu314 by profibus cable, now I change OP7 by OP77A and use wincc flexible 2008 sp5. In "Connection" I already set adress of CPU314 and OP, DP communication, transfer project to OP ok but OP can not communicate with PLC. How to setup correct for the communication? Thank for your answers.
	Last edited by: phucxdtd at: 03/17/2022 16:06:44 Last edited by: phucxdtd at: 03/17/2022 16:07:52
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3/17/2022 4:06 PM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 1/9/2026 Posts: 9104 Rating: (1202)	Hi, Have you seen this link: How do you configure a connection between WinCC flexible Runtime (PC/Panel) and a SIMATIC S7-300/S7400 via PROFIBUS/MPI? Best regards, Wizard

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This contribution was helpful to 2 thankful Users phucxdtd Murof