描述
在PLC控制系统的故障中，CPU占5%，I/O接口占15%，输入设备占45%，输出设备占30%，线路占5%。前二项共20%故障属于PLC的内部故障，它可通过PLC本身的软、硬件实现检测、处理；而其余80%的故障属于PLC的外部故障。因此，PLC生产厂家都致力于研制、发展用于检测外部故障的专用智能模块，进一步提高系统的可靠性。
Alcon Legacy 20000 Phaco Emulsifier Surgical Eye Sys.
Welbilt ICE-O-Matic EF450 SelfContained Flake Ice Maker
Applied Biosystems Tropix TR717 Microplate Luminometer
AMAT Nor-Cal Intellisys Vacuum Control w/4″ Gate Valve
AMAT Ebara ET-150 ET150 Turbo Molecular Pump Controller
AE Advanced Energy PDX 900-2V RF Generator 3156024-032A
Xycom 9460 10″ Flat Panel LCD Operator PC Interface
TrippLite SU6K Unison Smart Online UPS Sys 6KVA 4200W
Varian SD-1400 Rotary Vane Mechanical Vacuum Pump 43CFM
Air Rover XL24 Portable Air Conditioner 27,400 BTU
Air Rover Portable Air Conditioner 27,400 BTU XL24
