描述
根据统计资料表明：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。
Rexroth Indramat VE102 VE 102 A1 VE VE102A1 VE102AI
Agastat Timer 2422AC .8-15 SEC 120V Coil
Bielomatik STEURGER 30063107 Minimal Mengen Schmierun
NEW GE IC3600 IC3600LINA1D1B I C3600LINA NEW
Brooks Flow Meter Totalizer Tri-10 9853AC2A1B1A1A2 20vd
Compumotor Corp Motor Drive Controller M5710211 C-B
RELIANCE ELECTRIC 0-51845-2 0 51845 2 0518452 51845-2
Nicolet 4094C Digital Oscilloscope & F-43 & 4562 Module
Square D i-line busway pq4203 30A pq-4203 fusible
Siemens Board Card 570 515.9001.00 570515.9001.00 Ser A
Fusion Systems Corporation control card 038039
