The application of PLC in the diggings electrical net supervisal system
Zhou Guang-xing · Coal Mine Machinery · 2004
The application of PLC to computer survey systems in the diggings electrical net industry is introduced.The system uses SIMATIC S7-200 PLC maded by SIMENS as the central data collecting and processing device.By using the ST7536 electrical carrier wave transceiver circuit,we manage to use electric line to communicate.This system has a high reliability,expansibility,and maintainability.Meanwhile,the production is low and the manipulation is easy to magage.The system has obtained great success in the application.