Abstract: The intelligent emulsion pump station control system was achieved based on CAN-bus. Centred on PLC and human computer interface was accomplished by CAN-bus and upper computer, Communication with the combined switch box control the intelligent emulsion pump station, which was monitored by on line monitoring system. The control strategy and hardware design scheme were described and was proved good reliable, steady and high automation via applied underground coal line.

Key words: CAN_bus, Intelligent control, Emulsion pump station