3720 TRICONEX 3721 模拟输入模块 用于采集和表示事物电流

产品技术要求：

TRICONEX 3721 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。TRICONEX 3721 模拟量输入模块是一款可以采集模拟量（如电压，电流，热电偶，热电阻，温度等数值）通过485总线传输到电脑上的智能模块。其通信协议采用MODBUS RTU协议，与工业现场数据采集实现了统一对接，编程起来也很方便。

功能特点：

1、支持标准Modbus RTU通讯协议

2、支持电流或电压切换采集，内部跳线可切换采集模式

3、支持多种采集量程、各类组态软件对接

4、4路模拟量输入、2路数字量输出转RS485

5、支持-40~85°宽电压DC5~35V供电，支持导轨安装

6、电压采集：0~5V、0~10V、0~30V

7、电流采集：0~20、4~20mA

Application field:

1, building automation: roof water tank depth, water tank water temperature, indoor smoke detection, alarm switch

2. Intelligent transportation: Take subway for example: traffic signal lights, carbon dioxide concentration monitoring, oxygen concentration monitoring, smoke concentration monitoring, exhaust fan control

3, water treatment system: water level control monitoring and alarm, water flow monitoring, water pollution index control, water temperature monitoring

4. Expressway intelligent system: vehicles are controlled through detection and traffic signal lights

5. Energy management system: example of wind power station, wind speed monitoring, windmill speed monitoring, voltage monitoring, current monitoring

6, environmental monitoring: temperature, humidity, wind speed, air composition monitoring