3601E 模拟输出模块一、模拟量模块的种类
(1)模拟量输入模块
模拟量输入模块也称为A/D模块，它将从各种工业现场传感器中采集的模拟量信号转换成CPU可以识别接收的数字量。
(2)模拟星输出模块
模拟量输出模块又称为D/A模块，简单来说就是将模拟量输入模块CPU送来的数字量转换成其他外部设备1识别接收的电压或者电流等信息。
(3)数字量模块
数字量模块的主要作用就是检查外部开关输入的状态。数字量输入输出信号是开关量信号，1或者0。
二、模拟量模块的作用
1、模拟量输入模块的主要作用是收集模拟信号。收集外部压力传感器后，在模块内部收集压力传感器收集的模拟信号,并进行相应的处理。这里的传感器数据包括电压、电流、热阻、热电偶、温度等模拟值，然后通过总线传输给计算机的智能模块。
2、模拟量输出模块的作用是通过数模转换输入的数字信号进行转换，输出可控制的连续电流和信号。
3、数字量模块:数字量模块有输入输出两种功能。如果不采用这种方法集成，可以节省更多空间,否则用户在使用时需要买两个模块，数字量模块解决了这一-问题， 即:集成输入/输出功能，一个模块既可以输入信号也可以输出信号。
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