The PC is widely used in the electrical control system because of its many characteristics, sush as the strong anti interference ability, the treatment to volume of switch carried out by un touched point electrical circuit, and the input and output module equipped with different kinds of functions.
PC机具有抗干扰性能强,对开关量的处理可由无触点的电子线路完成,并配有各种功能不同的输入和输出模块等特点,广泛应用于现代电气控制系统。