Abstract:

This article proposes a large-scale monitoring and control network solution.An automatic monitoring and control system based on MODBUS protocol is established,and a long-distance monitoring and control network is set up through Ethernet connection.The fire monitoring and control warning network and MODBUS network system circuit are designed for its application in the measurement and control of fire,and the PCB circuit board is made and networking tested.the MODBUS protocol communications procedures and fire monitoring system of the host computer program are written.The system provides valuable references for early warning and monitoring and control of fires in the complex environment.

Key words: monitoring and control network;MODBUS protocol;the field bus control;fire warning