D201471 METSO 数字输出模块

D201471数字量输入输出信号就是开关量信号，1或者0，

D201471模拟量信号，有2种，电压或者电流信号 ，一般是变送器传过来的信号，比如用压力变送器检测水管压力，它会输出一个模拟信号4–20ma 或者 0-10V的信号给PLC，PLC来进行数据处理。

D201471开关量输入点(DI),处理开关量输入信号.

模拟量输入点(AI),处理模拟量输入信号(0-20mADC,0-5VDC).

电阻信号(含热电阻)输入点,处理热电阻或一般电阻信号.

高速脉冲输入点,处理高速脉冲信号.

电压(含热电偶)输入点,处理电压输入或热电偶信号.

还有通讯,用于和上位机交换数据或控制下级控制器仪表驱动器等

D201471

D201471 Digital input and output modules (I/O modules) are key components of every PLC (Programmable logic controller). Specifically, they assume the control, communication and actuation functions of the PLC. But digital I/O modules face increasing challenges. These challenges stem from the growing need for flexible usage and a fierce battle for market share occurring simultaneously in terms of system reliability.

D201471 Changing customer needs are also a factor. The IP protection and access restriction of the solution as well as its power consumption and system lifetime play a decisive role in the battle for customers. The security aspect is also becoming increasingly important, especially when it comes to controlling drives. In today’s competitive market, long experience is essential, as are features such as simplicity, low maintenance costs, and secure data access.

D201471 digital input/output signal is a switching signal, 1 or 0,

D201471 analog signal, there are two kinds, voltage or current signal, generally the signal transmitted by the transmitter, such as the pressure transmitter to detect the pressure of the water pipe, it will output an analog signal 4-20mA or 0-10V signal to the PLC, PLC for data processing.

D201471 Switching input point (DI), processing switching input signal.

Analog input point (AI), processing analog input signals (0-20mADC,0-5VDC).

Resistance signal (including thermal resistance) input point, processing thermal resistance or general resistance signal.

High-speed pulse input point, processing high-speed pulse signal.

Voltage (including thermocouple) input point, processing voltage input or thermocouple signal.

There is also communication, which is used to exchange data with the upper computer or control the instrument driver of the lower controller