描述
某些输入信号不进入PLC系统中有些信号功能简单、涉及面窄，如图6中的手动按钮、过载保护的热继电器触点等，有时就没有必要作为PLC的输入，将它们设计在PLC外围的硬件电路中同样可以满足控制要求。如果外部硬件电路过于复杂，则应考虑仍将有关信号送入可编程序控制器
Anritsu EF202A ISDN Call Simulator
Agilent/HP E1607A ATM Stream Processor x 3 sets
W&G PF-45 DS3, DS1 Analyzer
Nihonka 6162 Anemomaster
BMI 3030A Power Profiler + 4800 Powerline Analyzer
Agilent 85025A Detector 10 MHz to 18 GHz
Rion VM-80 Vibration Meter (S/N #19001098)
Rion VM-80 Vibration Meter
Rion VM-80 Vibration Meter
Anritsu MP1560A STM/SONET Analyzer 52/156 Mb/s
Kikusui PAD500-2L Regulated DC Power Supply/CV-CC
Anritsu MN510D Resistance Attenuator
Agilent/HP 4972A Protocol Analyzer
Kikusui 3P02-PCR-L 3-Phase Driver x 2 sets
Anritsu Z164A T-Pad x 3 sets
Ando AE1402B Modem Tester x 3sets
