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。
Xantrex XDL 35-5T DC Power Supply
Unox XAF195 Oven
Agilent/Hewlett Packard 6624A System DC Power Supply
Xantrex XBT32-3FTP DC Power Supply
Digi DC-120 Scale
ARRA 3428A Broadband Phase Shifter
Branson 2000iw Welder
Aeromotive EDG System Ergomation Work Bench
Vision Engineering Cobra Microscope
Agilent E4426B ESG-AP Signal Generator 250 kHz-4.0 GHz
Agilent 3499B Switch/Control System
Rohde FSIQ7 Signal Analyzer 20Hz to 7GHz
Kenwood SG-5150 Signal Generators
