"基于FX2N PLC的液体自动混合装置控制系统设计与优化-毕设论文"

In the field of production, it is often necessary to monitor the liquid level in tanks, storage tanks, and water tanks. In the past, traditional relay contactor controls were used, with multiple hardware connections, poor reliability, and low automation. Many companies have now adopted advanced controllers to upgrade traditional controllers, greatly improving the reliability and automation level of the control system, providing more reliable production support for enterprises. This paper introduces the design of a liquid level control system based on the FX2N programmable controller (PLC) model and configuration software, using PID algorithm to achieve automatic liquid level control. The configuration software is used to design the human-machine interface, and communication with the programmable controller is achieved through a serial port for real-time monitoring of the control system, data collection, and processing on-site. The system has a simple structure, high degree of automation, online modification capability, and strong flexibility. Keywords: PLC, liquid level control, touch screen, variable frequency In conclusion, the PLC-controlled liquid automatic mixing device discussed in this paper provides a reliable and efficient solution for monitoring and controlling liquid levels in various industrial settings. With the use of advanced technologies such as PID algorithms and configuration software, the system offers high levels of automation, reliability, and flexibility for improved production processes.