Industrial Process Control
In the industrial production process,there are some continuously changing quantities(ie analog quantities)such as temperature,pressure,flow,liquid level and speed.PLC adopts corresponding A/D and D/A conversion modules and various control Algorithm programs to process analog quantities to complete closed-loop control.PID adjustment is a commonly used adjustment method in general closed-loop control systems.Process control is widely used in metallurgy,chemical industry,heat treatment,boiler control and other occasions.
工业过程控制
在工业生产过程当中,存在一些如温度、压力、流量、液位和速度等连续变化的量(即模拟量),PLC采用相应的A/D和D/A转换模块及各种各样的控制算法程序来处理模拟量,完成闭环控制。PID调节是一般闭环控制系统中用得较多的一种调节方法。过程控制在冶金、化工、热处理、锅炉控制等场合有非常广泛的应用。
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