Implement of communication between configuration software and OPC server based on Modbus/TCP

Introduces the communication among a variety of Industrial Ethernet based on OPC industry standard, and details the entire process developing OPC data access server in the visual studio 2008 development environment with the example of Modbus/TCP. It takes Siemens WinCC 6.0 as OPC client in a FPCB (Flexible Printed Circuit Board) film production system in this paper to test and achieve the normal communication between configuration software WinCC and OPC data access server. It is convenient to achieve a variety of system integration of Industrial Ethernet, by adding other Industrial Ethernet protocol analysis module to this OPC server.

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