描述
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。
NDI POLARIS STEALTH TOOL INTERFACE UNIT
TEXAS INSTRUMENTS XDS560 EMULATOR PCI CARD XDS 560
KROHN-HITE 3955 LP BUTTERWORTH DUAL CHANNEL FILTER
WAVETEK 5820A CROSS-CHANNEL SPECTRUM ANALYZER
SPEARHEAD TECHNOLOGIES NETGAP 201 SECURITY PLATFORM
ODIN MEDICAL TECHNOLOGIES ENERTEC PDU
MANGO DSP 350-00010-001 503-00038 P.N. 0660-A0972
AUDIOCODES TP-1610 TP1610B W/ PADDLEBOARD NIB TP1610