Research on a network of real-time monitoring in the industrial fields

In order to solve the scheduling in large petrochemical enterprises, a real-time scheme to monitor whole procedure of production by LAN is proposed in this paper. A reliable frame-based communication mechanism is also designed.A real-time communication with various industrial control software is implemented through DDE technology .In the LAN programming,Activex object Winsock and UDP protocol are used.This scheme has been realized in Harbin Petrochemical Enterprise.The result proves that performance is satisfactory.