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。
SAUNDERS 150C CRYSTAL IMPEDANCE METER
MITSUBISHI MELSEC A1S A1SCPU WITH A1SX41,AISX81,A1SY41
MINTRON MTV-1802CB CCD CAMERA,AVENIR CCTV LENS 25MMF1.4
AGILENT E6392-60001 UNIVERSAL DC POWER ADAPTER
LDCU DIODE CONTROL UNIT VOLTS 5 DC.
Olympus MD-733 LIGHT CONTROL CABLE, CODE 06-M0126-0293.
OMRON AC SERVO MOTOR R88M-M1K120-B 1100W 2000R/MIN
NEW GENUINE ALLISON TRANSMISSION PARTS FLANGE #29506670
LEITZ WETZLAR 512740/20 BINOCULAR MICROSCOPE TILT. HEAD
YASKAWA CIMR-V7AT47P5 INVERTOR CONTROLLER
