Research on the application of the OPC technology to industrial process control

The OPC specification deals with an industrial standard formulated by the OPC foundation.It provides a standard interface for use with process control,automatic software and industrial devices.This paper gives an overview about the appearance of the OPC technology,the specifications of the OPC standard and the benefit when you use the OPC specification to design a control system.The paper also makes mention of its main domestic and foreign application fields,and analyses the main function in the application of the OPC technology.OPC represents the developing direction of the communication standard in process control systems.