Multi-bus multi-programmable controller microwave metallurgy control system

The utility model relates to a multi-bus multi-programmable controller microwave metallurgy control system, belonging to the field of control technologies. The system comprises a microwave metallurgy device, programmable controllers, an industrial control computer, 485 field buses, sensors and relays. The sensors and the relays are fixed in the microwave metallurgy device. Output ends of the sensors and input ends of the relays are connected with external modules of the programmable controllers respectively. Serial ports of the industrial control computer are connected with free ports of the programmable controllers through the 485 field buses. The system provides a master-slave control structure which gives priority to the industrial control computer and is based on the multiple buses and the multiple programmable controllers, uniformly transmits data to industrial control computer software for processing, and controls and coordinates communication among the multiple programmable controllers and coordination