IS220PAOCH1A 模拟量输入模块 用于采集和表示事物的电压

IS220PAOCH1A 模拟量输入模块是一款将远程现场的模拟量信号采集至计算机的设备。该设备利用RS-485总线作为数据通信线路，提供模拟量转485功能，能够同时将模拟量输入至模块，并通过RS-485总线传输至计算机。模拟量是表示在一定范围内连续变化的任意取值，跟数字量是相对立的一个状态表示。通常模拟量用于采集和表示事物的电压电流或者频率等参数。模拟量输入模块可以采集这些模拟量，例如电压、电流、热电偶、热电阻、温度等数值，然后通过485总线传输到电脑上。由于采用RS-485接口作为通信接口，模拟量输入模块能够多个模块组合传输更多路数模拟量信号，并且能够在485线路上分散配置，采用地址码进行区分。此外，该模块支持多种采集量程，并且可以直接接入MODBUS RTU协议的组态软件，方便与工业现场数据采集实现统一对接。IS220PAOCH1A  模拟量输入模块在各行业当中的自动化和信息化系统中都有广泛应用。例如，在采集外部压力传感器时，可以将压力传感器采集到的模拟信号通过模块采集到内部，然后再做出相应的处理。

IS220PAOCH1A

The IS220PAOCH1A analog input module is a device that collects analog signals from remote sites to a computer. This device uses the RS-485 bus as a data communication line, providing the function of converting analog signals to 485. It can simultaneously input analog signals to modules and transmit them to computers through the RS-485 bus. An analog quantity is an arbitrary value that represents continuous changes within a certain range, and is a state representation opposite to a digital quantity. Usually, analog quantities are used to collect and represent parameters such as voltage, current, or frequency of things. The analog input module can collect these analog values, such as voltage, current, thermocouple, thermal resistance, temperature, etc., and then transmit them to the computer through the 485 bus. Due to the use of RS-485 interface as the communication interface, the analog input module can combine multiple modules to transmit more analog signals, and can be configured dispersedly on the 485 line, using address codes for differentiation. In addition, the module supports multiple acquisition ranges and can be directly connected to the MODBUS RTU protocol configuration software, facilitating unified integration with industrial field data acquisition. The IS220PAOCH1A analog input module is widely used in automation and information systems in various industries. For example, when collecting external pressure sensors, the analog signals collected by the pressure sensors can be collected internally through modules and then processed accordingly.