UAC389AE02 HIEE300888R0002 数字量输入模块ABB

UAC389AE02 HIEE300888R0002 数字量输入模块ABB

UAC389AE02 HIEE300888R0002 数字电源控制板 UAC389AE温度探头一般不可以直接接入常用模拟量模块，需要接入专用温度模块，或者加变送器。一般压力传感器也不能直接接入模拟量模块，一般是购买自带变送器，或者使用压力变送器。

UAC389AE02 HIEE300888R0002 数字电源控制板 UAC389AE那么当传感器和变送器结合使用的时候可以将非电物理量转换成统一的标准电量。这就是传感器和变送器的一个作用。

UAC389AE02 HIEE300888R0002 数字电源控制板 UAC389AE传感器和变送器转换出来的是一个标准电量，是电信号，我们的PLC是不能直接接收电信号的，那么就需要一个转换，也就是AD转换，将模拟量转换成数字量。

在我们PLC这边，AD转换器其实就是一个模拟量的输入模块，而DA转换器就是模拟量的输出模块。

而对于模拟量输出，我们是做模拟量控制变频器速度，从而控制电机速度；或者是模拟量控制伺服力矩和速度控制；又或者是模拟量控制比例阀的开度控制等。

UAC389AE02 HIEE300888R0002 digital power control board UAC389AE temperature probe generally can not be directly connected to the common analog module, need to access the dedicated temperature module, or add a transmitter. Generally, the pressure sensor can not be directly connected to the analog module, which is generally to buy its own transmitter, or use a pressure transmitter.

UAC389AE02 HIEE300888R0002 Digital power control board UAC389AE Then when the sensor and transmitter are used together, the non-electrical physical quantity can be converted into a unified standard electricity. That's where sensors and transmitters come in.

UAC389AE02 HIEE300888R0002 digital power control board UAC389AE sensor and transmitter conversion is a standard electricity, is an electrical signal, our PLC is not able to directly receive electrical signals, then you need a conversion, that is, AD conversion, the analog quantity into digital quantity.

In our PLC side, the AD converter is actually an analog input module, and the DA converter is an analog output module.

For the analog output, we do the analog control frequency converter speed, so as to control the motor speed; Or analog control servo torque and speed control; Or it is the opening control of the analog proportional valve.