PLC与电气回路的接口，是通过输入输出部分（I/O）完成的。I/O模块集成了PLC的I/O电路，其输入暂存器反映输入信号状态，输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统，输出模块相反。I/O分为开关量输入（DI），开关量输出（DO），模拟量输入（AI），模拟量输出（AO）等模块。
Agilestar - ASCG-1490 - For Agilestar - New in Box
Agilestar - ASCG-1510 - For Agilestar - New in Box
Agilestar - ASCG-1530 - For Agilestar - New in Box
Agilestar - ASCG-1550 - For Agilestar - New in Box
Agilestar - ASCG-1570 - For Agilestar - New in Box
Agilestar - ASCG-1590 - For Agilestar - New in Box
Agilestar - ASCG-1610 - For Agilestar - New in Box
Agilestar - ASCS-1270 - For Agilestar - New in Box
Agilestar - ASCS-1290 - For Agilestar - New in Box
Agilestar - ASCS-1310 - For Agilestar - New in Box
Agilestar - ASCS-1330 - For Agilestar - New in Box
Agilestar - ASCS-1350 - For Agilestar - New in Box
