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 ECODRIVE Cs DKC10.3-012-3-MGP-01VRS
TEKTRONIX 2247A 100MHZ COUNTER/TIMER OSCILLOSCOPE
COGENT LIGHT XL ILLUMINATOR LIGHT SOURCE A1-90094-A
TEXAS INSTRUMENTS 560-2126 RCC CARD
HAWLETT PACKARD 24 OMNICARE M1205A WITH M1041A MONITOR.
BALDOR MA9008 SOFT START SOLID STATE MOTOR CONTROL.
PANADAC 770-283 MONI20 0E023W DRIVER CARD
PANADAC 770-285 RAM 0B329F DRIVER CARD
PANADAC 770-282A HD3 NCX-YZ-10 0B076W DRIVER CARD
PANADAC 770-204 IFR10 0D065W DRIVER CARD
PANADAC 770-281 SI0P10 OE057W DRIVER CARD
