Research Of The Belt Conveyer Control System Based On PROFIBUS Network

The paper elaborated on the mine belt conveyor centralized control system workflow, centralized control system for fully automated control and communications research for the belt conveyor. In this paper selected the S7-300shots stop, S7-200to do the sub-station belt conveyor centralized control system. S7-300shots of the station is responsible for profibus communication and real-time scheduling of the various sub-stations. S7-200to do the sub-station is mainly responsible for the control and protection of the belt.On the design of the communication network, in order to achieve decentralized control for centralized management, using two-layer communication networks, three sub-station S7-200programmable logic controllers with PROFIBUS fieldbus connections to S7-300main station. S7-300main site and communicate through Ethernet communication module and PC machines. Hardware structure from stations on a analog input module S7-200extends EM231and PROFIBUS communication module EM277. S7-300master station extends the Ethernet communications module CP343-1.Software design, forming a belt starting and stopping control and fault detection control, fault detection procedures through the fault signal detection of downtime protection. At the same time also the protection of belt conveyor of the eight are described in details one by one, through the acquisition of sensor signals to the programmable logic controller, if a fault occurs, PLC by user programs, realized on the conveyor belt, protective.The PC software real-time monitoring of the state of the field work, record the parameters of the field of man machine communication, through the vivid image of the embedded configuration software MCGS screen graphical interface is intuitive. The workflow is to use the the MCGS configuration software, the design of the monitoring interface of the host computer MCGS shown by real-time database dynamic operation of the belt conveyor, analyze and save PLC fault information coming, and improve the environment of the system of man-machine interface.