A PLC is an industrial computer used to control manufacturing processes such as robotics,high-speed packaging,bottling,and motion control.Over the past 20 years,PLCs have added more functions,creating more benefits for small factories and installations.PLC usually operates as a stand-alone system,but it can also be integrated with other systems to realize the connection between each other through communication.Since each PLC has its own database,integration requires some level of mapping between controllers.This makes PLCs especially suitable for small applications that do not require much expansion.
PLC是一种工业计算机，用于控制生产制造过程，如机器人、高速包装、装瓶和运动控制等。在过去20年里，PLC增添了更多的功能，为小型工厂和装置创造了更多的效益。PLC通常是单机系统运行，但也可以与其它系统集成，经由通信来实现彼此之间的连接。由于每个PLC都有自己的数据库，因此集成需要控制器之间某种程度的映射。这使PLC特别适用于那些对扩展没有太大需求的小型应用程序。
HP/Agilent 8720B Network Analyzer, 130 MHz to 20 GHz
HP/Agilent 83732B Synthesized Signal Generator, 0.01 –
ENI 5100L-NMR 1.5-400MHz 100W Power Amplifier
HP/Agilent 8563E Portable Spectrum Analyzer, 9 kHz to 2
Agilent E4402B ESA-E Spectrum Analyzer,9 kHz – 3.0 GHz,
HP/Agilent 8753D Network Analyzer, 30 kHz -3 GHz, 75 OH
HP/Agilent E4437B/SN:US39260297 ESG-DP Series Digital R
