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本文介绍了一个基于PLC的变频调速、压力恒定的自动供水控制系统的设计方法。这种设计是基于中国中小城市供水厂的现状完成的。在这个控制系统中,在整个管网中的压力信号是由压力传感器现场采集的,然后,通过PLC中的PID模块传递给控制泵电机,进行切换发送。同时,个人计算机与PLC连接,通过监控软件的监控,监测和控制恒定供水系统的实时压力。
This article describes a PLC-based frequency control, constant pressure automatic water supply control system design. This design is based on the status quo of water supply plants in small and medium-sized cities in China. In this control system, the pressure signal in the whole pipe network is collected by the pressure sensor on site, and then transmitted to the control pump motor through the PID module in the PLC to switch and send. At the same time, the personal computer is connected to the PLC to monitor and control the real-time pressure of the constant water supply system by monitoring the monitoring of the software.