PLC控制系统故障率情况是怎样的？
1）CPU与存储器故障率占5%。
2）I/O模块故障率占15%。
3）传感器及开关故障率占45%。
4）执行器故障率占30%。
5）接线等其他方面故障率占5%。
02
PLC的故障多发点有哪些？
1）继电器、接触器。
2）阀门、闸板。
3）开关、极限位置、安全保护、现场操作的一些元件或设备。
4）PLC系统中的子设备。
5）传感器、仪表。
6）电源、地线、信号线的噪声。
维修PLC先后顺序是怎样的？
先动口再动手
1）维修PLC时，不要立即直接动手，而是先询问故障发生前后的情况、故障现象。
2）如果对生疏的PLC维修，应先了解其工作原理。
先清洁再维修
维修PLC时，可以打开机子，首先进行清洁PLC。
先外后内
维修PLC时，先检查外部现象与原因，如果外部正常，则然后检查PLC内部。
先无电判断后通电判断
首先在没有通电的情况下，先判断熔丝是否损坏、是否不通电就可以判断出故障点。如果不能够判断出来，则再通电检查PLC。
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Schneider TSXP47455 Processor Module
Schneider TSXP574823M Processor Module 574X3
Schneider TSXPBY10 Profibus DP Master Module
Schneider TSXPSY5500 Power Supply Module 100/240V
Schneider TSXPSY8500 Power Supply Module 100/240V
Schneider TSXRKN82 PLC Slot Rack
Schneider TSXRKY12 Non-Extendable Rack 12 Slot
Schneider TSXRKY4EX Expansion Rack 4 Slot
Schneider TSXRKY6EX Expansion Rack 6 Slot
Schneider TSXRKY8EX Expansion Rack 8 Slot
Schneider TSXSCM2116 Communication Module
Schneider TWD-LCAA40DRF Modicon Base Unit 24In 16Out
Schneider TWD-LCAA40DRF Modicon Base Unit 24In 16Out
Schneider XAC-A08H7 Pushbutton Pendant Station
Schneider/Square D 8903-MG-1-V02 Lighting Contactor 110/120V Coil
Schott-Fostec ACE1 EKE Fiber Optic Illuminator 115/120V 150W
Schrader Bellows 53000-2115 Solenoid Valve 110/120V 50/60HZ 3/8Inch 150Psi
Schrader Bellows B43003RS English Valve
Schrader Bellows B43003RS English Valve
Schrader Bellows FW2D111621 Pneumatic Cylinder 250PSI 3.5" Bore
Schroff SPN-124 Power Supply 2.1A 220-240VAC 50/60Hz
Schunk GSM-P-50-AS Rotary Gripper Module
Schunk PGN+200/1 371105 2 Finger Parallel Gripper
Schunk THWB 210-52 Three-Jaw Power Chuck
Schurter FKSV2-55-6 CD Power Entry Module
Schurter FKSV2-55-6 CD Power Entry Module
Sciemetric 251B 16-Channel Analog Multiplexer Transducer Interface Board RFB
Scientific Columbus 6271A DC Isolation Amplifier 120VAC
Scientific Columbus 6271A DC Isolation Amplifier 120VAC
Scientific Technologies MS4436B2 Light Curtain Receiver
Scientific Technologies MS4436B2 Light Curtain Transmitter
Scott Instruments 452 Sound Level Meter Fluke Type 2
Scott Instruments SCT096-2560 Scout SCT Monitor
Scott Instruments SIR20 Controller Board Model 20
Seaglaze HB10/LCK-207 Bracket for Mag 3/4
Seaglaze HB10/LCK-207 Bracket for Mag 3/4 NOP
Seal Master ER-36T Bearing Gold Series
Seal Master MP-23 Pillow Block Two Bolt Bore 1-7/16 Inch
Seal Master MP-31 Pillow Block Bearing 1-15/16 In
Seal Master MPD-16 Pillow Block
Seal Master MSFT-23/700133 Flange Block 1-7/16" Bore
Seal Master NP-20R/700184 Ball Bearing Pillow Block 1-1/4 Inch Bore
Seal Master NPD-20 Pillow Block
Sealmaster FB-14 Flanged Ball Bearing 3-Bolt 7/8"
Sealmaster FB-14 Flanged Ball Bearing 3-Bolt 7/8"
Seco 8600-SCR Motor Speed Control AS IS
Seco VC150D 1-Phase AC Drive 1.50kW 220/240V 50/60Hz RFB
Securitron BPS-12-4.5 Power Supply 12VDC 4.5amp
Securitron CCB-8-24 Control Board 8 F Outputs
Securitron CCB-8-24 Control Board 8 F Outputs
Securitron Model 62 Electromagnetic Lock
Securitron Model 62 Electromagnetic Lock
Securitron Model MK Mortise Keyswitch Panel with LED
Securitron PB4 Steel Pushbutton Tamper Resistant
Seekonk Precision Torque Analyzer TAF-100
Seiki 861731 IN/OUT 16 PC Board
Seiki VK/VM-M.DIS.D DIS Board
Seisakusho KSP-MHS 18C-4FR Trocho Motor Pump
Seismologic MODEL-D Seismological Controller 10-120VAC AS-IS
Selca VE66-100 Timing Motor
Selectron 311.0225 PMC PLC Module
Selectron Selecontrol 311.0225 PMC 22 Controller Missing Modules AS IS
Selfeeder SN4U Drill/Tapping Press 3.15 Stroke
SEM MT30H4-33 Servo Motor 2.1NM 130V 4000RPM
Semco MT30R4-37 Sem Brushed DC Servo Motor 140V
Semikron SKM-200-GAL-122D Power Module
Semikron T-SKKD260/16 Power Module 260A 1600V
Sencon A100-049 PLC Controller Board 88-02210
Sencon A100-054 PLC 12V Power Card 88-12380
Sencon A100-062/063 PLC Controller Board 89-04100
Sencon A100-064/065 PLC VIC 2 Pro 88-02259