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 - ONS-SC-4G-58.1-AS - For Cisco - New in Box
Agilestar - ONS-SC-4G-58.9-AS - For Cisco - New in Box
Agilestar - ONS-SC-4G-59.7-AS - For Cisco - New in Box
Agilestar - ONS-SC-4G-60.6-AS - For Cisco - New in Box
Agilestar - ONS-SC-4G-61.4-AS - For Cisco - New in Box
Agilestar - 10G-XFP-ZRD-1531-12-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1531-90-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1532-68-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1533-47-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1534-25-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1535-04-AS - For Foundry - New
Agilestar - 10G-XFP-ZRD-1535-82-AS - For Foundry - New
