A-B 1771-IAN 数字交流/直流输入模块

A-B 1771-IAN是一款PLC 5数字交流/直流输入模块，它具备多种功能和特性，广泛应用于工业自动化控制系统中。

该模块的主要功能是将用户设备提供的交流信号转换为处理器所需的逻辑电平，并直接控制PLC数据表中相应位的状态。它包含各种输入设备，如按钮、限位开关、指示灯、电机启动器和信号器，用于连接开/关传感器和执行器。此外，A-B 1771-IAN模块还具有模块化设计，能够节省空间，以口袋友好的方式将输入添加到PLC控制系统。

在硬件设计方面，A-B 1771-IAN模块带有一个1771-WN接线臂，用于更换模块时无需断开接线。它是一个A系列模块，支持1/1771和32插槽I/O寻址。其工作电压范围为10-7V AC，最大功耗为1W，热耗散为1771.20 BTU/小时。此外，该模块还包含光电隔离，以保护系统电路免受电气瞬变的影响，并具备输入滤波功能，可降低电噪声。

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The A-B 1771-IAN is A PLC 5 digital AC/DC input module with a wide range of functions and features for use in industrial automation control systems.

The main function of the module is to convert the AC signal provided by the user device into the logic level required by the processor, and directly control the state of the corresponding bit in the PLC data table. It contains various input devices such as buttons, limit switches, indicator lights, motor starters and signalers for connecting on/off sensors and actuators. In addition, the A-B 1771-IAN module has A modular design that saves space and adds inputs to the PLC control system in a pocket-friendly way.

In terms of hardware design, the A-B 1771-IAN module comes with A 1771-WN connection arm, which is used to replace the module without disconnecting the connection. It is an A-series module that supports 1/1771 and 32 slot I/O addressing. The operating voltage range is 10-7V AC, the maximum power consumption is 1W, and the thermal dissipation is 1771.20 BTU/ hour. In addition, the module includes photoelectric isolation to protect system circuits from electrical transients and input filtering to reduce electrical noise.