PPC902AE101-3BHE010751R0101 控制器模块

PPC902AE101-3BHE010751R0101 控制器模块由微处理器（CPU芯片）和存储器组成，在可编程控制器系统中，CPU模块相当于人的大脑和心脏，它不断地采集输入信号，执行用户程序，刷新系统的输出。

存储器用来储存程序和数据。

PPC902AE101-3BHE010751R0101输入（Input）模块和输出（Output）模块简称为I/O模块，它们是系统的眼、耳、手、脚，是联系外部现场和CPU模块的桥梁。

PPC902AE101-3BHE010751R0101输入模块用接收和采集输入信号，输入信号有两类：一类是从按钮、选择开关、数字拔码开关、限位开关、接近开关、光电开关、压力继电器等开关量输入信号；另一类是由电位器、热电偶、测速发电机、各种变送器提供的连续变化的模拟量输入/输出信号电压一般较高，如直流24V 和交流220V。

从外部引入的尖锐电压和干扰噪声可能损坏CPU模块中的元器件，或使用权可编程控制器不能正常工作。

PPC902AE101-3BHE010751R0101 Controller module is composed of microprocessor (CPU chip) and memory, in the programmable controller system, CPU module is equivalent to the human brain and heart, it constantly collects input signals, executes user programs, and refreshes the output of the system.

Memory is used to store programs and data.

PPC902AE101-3BHE010751R0101 Input module and Output module, referred to as I/O module, are the eyes, ears, hands, and feet of the system and the bridge between the external field and the CPU module.

PPC902AE101-3BHE010751R0101 Input module is used to receive and collect input signals. There are two types of input signals: one is from the button, select switch, digital code switch, limit switch, proximity switch, photoelectric switch, pressure relay and other switch input signals; The other is the continuously changing analog input/output signal voltage provided by potentiometers, thermocouples, tachometers, and various transmitters, such as 24V DC and 220V AC.

Sharp voltage and interference noise introduced from the outside can damage components in the CPU module, or the right to use the programmable controller does not work properly.