(OPC technical specification separates hardware suppliers from software developers, which greatly improves the office efficiency of both sides. Software developers can access the data in the OPC data server without understanding the nature and operation process of the hardware. In particular, developers can greatly simplify the messy process of data transmission from devices in the past when developing systems in high-end languages such as C based on the process control system that has used configuration software for real-time monitoring. In the development of automatic batching system in an aluminum factory, OPC technology is used to conveniently realize the data exchange between VC application program and RSView32, and indirectly realize the communication between VC application program and PLC, which has achieved good results.
OPC_ Client.pdf)
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