KJ4110X1-EA1 EMERSON

A06B-0857-B102
3500/42-01-01
2711P-RDT7C
M155RGB14
1785-L20E
19047-01-01
6SE7041-8EK85-0HA0
IS220PRTDH1A
IS220PAICH1A
6au1445-0aa00-0aa0
DST1402P
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描述

PLC内部输入电路作用是将PLC外部电路(如行程开关、按钮、传感器等)提供的符合PLC输入电路要求的电压信号,通过光电耦合电路送至PLC内部电路。输入电路通常以光电隔离和阻容滤波的方式提高抗干扰能力,输入响应时间一般在0.1~15ms之间。根据输入信号形式的不同,可分为模拟量I/O单元、数字量I/O单元两大类。根据输入单元形式的不同,可分为基本I/O单元、扩展I/O单元两大类。

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