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。
FANUC A16B-2200-0361/04B 1/2 Axis Board
FANUC A16B-2200-0390/118 BOARD
FANUC A16B-2200-0430 RIO MOTHERBOARD
FANUC A16B-2200-0430/03A RIO Module, AB Remote I/O
FANUC A16B-2200-0431 RIO MODULE WITH ALLEN BRADLEY REMOTE I/O CALL
FANUC A16B-2200-0431/01A RIO Module, AB Remote I/O
FANUC A16B-2200-0431/03A RIO Module, AB Remote I/O
FANUC A16B-2200-0701 PCB-F15M/T MEMORY BOARD
FANUC A16B-2200-0750/02B Mutli-Function PCB.
FANUC A16B-2200-0761/01A Ram FILE 1MB
