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。
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ALLEN BRADLEY 1494V-DH633 1494VDH633 (MISSING 1494V-FS30A)
ALLEN BRADLEY 1494V-DRL622 FUSIBLE DISCONNECT SWITCH 200A 600VAC SERIES B
ALLEN BRADLEY 1494V-DRL622 FUSIBLE DISCONNECT SWITCH 200A 600VAC SERIES B
Allen Bradley 1494V-DS30 Series A Disconnect Switch 600V 30A 250 VDC Max
Allen Bradley 1494V-DS60 Series A 60 amp 600 Volt 3-Pole Switch (FS60 MISSING)
ALLEN BRADLEY 1494V-DS60 SERIES A DISCONNECT SWITCH WITH 1494V-FS60 FUSE BLOCK
Allen Bradley 1497-N5 Transformer Series A
Allen Bradley 15 Amp Circuit Breaker 1492-CB1 G150
Allen Bradley 1606-XL120D Power Supply
Allen Bradley 160-BA03NSF1P1 Ser C SPEED CONTROLLER 1HP, 160-DN2 A 3.002
ALLEN BRADLEY 160-DM-PS1 INTERFACE MODULE CONVERTER SERIES C
Allen Bradley 1720-N55 3 Digit Readout display
ALLEN BRADLEY 1734-MB SER A POINT I/O MOUNTING BASE REV A01 (LOT OF 10)
Allen Bradley 1734-OB8S /A 8 Point I/O Safety Digital D/C
Allen Bradley 1734-OB8S /A Channel Safety Sourcing Output WITH BASE 1734-MB A
Allen Bradley 1745-B1 Series A Lithium Battery Assembly, 1745-B1/A -
ALLEN BRADLEY 1745-E151 1745E151
ALLEN BRADLEY 1746HSRV
ALLEN BRADLEY 1746HSRV
Allen Bradley 1746-OB16 Series D Rev A SLC-500 Output Module Ser D 0B16
Allen Bradley 1746-OX8 Series A Output Module SLC-500 Ser.A
ALLEN BRADLEY 1746-P1 SER A SLC 500 POWER SUPPLY W/ 1746-A7 SER B 7 SLOT RACK
ALLEN BRADLEY 1746-P1 SER A SLC 500 POWER SUPPLY W/ 1746-A7 SER B 7 SLOT RACK
Allen Bradley 1746-P4 Supply, 1746-A13 13 Slot Rack, Broken DOOR
Allen Bradley 1756-IB16 ControlLogix Input
Allen Bradley 1756-IB16D /A E01 ControlLogix 10-30VDC Diagnostic INPUT
Allen Bradley 1756-IB16D /A E01 ControlLogix 10-30VDC Diagnostic INPUT
ALLEN BRADLEY 1756-IB16D A 1756-1B16 ControlLogix Input Module 16Pt
ALLEN BRADLEY 1756-M08SEB P01 EIGHT AXIS SERCOS INTERFACE MODULE 14186
Allen Bradley 1756-OB16I /A 1756-0B161 ControlLogix Isolated DC Output
Allen Bradley 1769-IQ16 1769-1Q16 CompactLogix Input Module Terminal MicroLogix
ALLEN BRADLEY 1771-A2B CHASSIS 1771-P2 ALLEN BRADLEY POWER SUPPLY 8 SLOT RACK
ALLEN BRADLEY 1771-A4B 16 SLOT I/O CHASSIS
Allen Bradley 1771-A4B 16 Slot I/O Chassis
ALLEN BRADLEY 1771-A4B 16 SLOT I/O CHASSIS ** 1771-P2 POWER SSUPPLY
ALLEN BRADLEY 1771-A4B 16 SLOT I/O CHASSIS ** see pic for damage
Allen Bradley 1771-A4B 16 Slot I/O Chassis SEE PHOTOS DAMANGE
Allen Bradley 1771-A4B 16 SlotI/O Chassis (1771-P2) POWER SUPPLY
ALLEN BRADLEY 1771AD 16 SLOT I/O RACK CHASSIS SERIES A
ALLEN BRADLEY 1771AD 16 SLOT I/O RACK CHASSIS SERIES A
Allen Bradley 1771-AL I/O Adapter Module
Allen Bradley 1771-ASB/D Remote I/O Adapter Module
Allen Bradley 1771-CP1 Cable LOT OF 6
Allen Bradley 1771-CP1 Cable LOT OF 6
Allen Bradley 1771-DA ASCII I/O Module, Ser A, Rev C, Free US Shipping
ALLEN BRADLEY 1771-HM (REV 005)
Allen Bradley 1771-HMA 96K CMOS Memory Module
Allen Bradley 1771-HMA 96K CMOS Memory Module
Allen Bradley 1771-HMA 96K Memory Module -
Allen Bradley 1771-HMA 96K Memory Module -
Allen Bradley 1771-HS1 Firm 03.01/1.22 Ser A _ IMC-121 1 Axis Servo Controller
Allen Bradley 1771-IAD B 120V AC/DC Input Module
Allen Bradley 1771-IAD C 120V AC/DC Input Module
Allen Bradley 1771-IB Input Module
Allen Bradley 1771-IBD/B 10 to 30 VDC Input Module
Allen Bradley 1771-IGD TTL Input Module
ALLEN BRADLEY 1771-IR SER A FERM L
Allen Bradley 1771-IV (12-24V) DC DRIVER LOGIC INPUT MODULE
Allen Bradley 1771-OA (120V) AC Output Module Series B
Allen Bradley 1771-OAD 12 to 120VAC AC Output Module
Allen Bradley 1771-OAD/B 12 to 120V AC Output Module
Allen Bradley 1771-OAD/B 12 to 120VAC AC Output Module
Allen Bradley 1771-OAD/B 12 to 120VAC AC Output Module
Allen Bradley 1771-OAD/C 10 to 138VAC AC Output Module
Allen Bradley 1771-OAD/C 10 to 138VAC AC Output Module
Allen Bradley 1771-OAD/C 10 to 138VAC AC Output Module
Allen Bradley 1771-OAD/C 10 to 138VAC AC Output Module Rev E02
Allen Bradley 1771-OAD/C AC Output Module Rev C02
Allen Bradley 1771-OBD/C DC Output Module 10-60VDC
Allen Bradley 1771-OFE1/B Analog Output Module Rev Q01
Allen Bradley 1771-OGD TTL Output Module
Allen Bradley 1771-OW Selectable Contact Output Module
Allen Bradley 1771-OZC Contact Output Module (8N.O.) Ser B
ALLEN BRADLEY 1771-OZL 1771OZL
Allen Bradley 1771-P2 Power Supply
Allen Bradley 1771-P3 120V AC Power Supply Module
Allen Bradley 1771-P4S 120V AC Power Supply Module
Allen Bradley 1771-P4S/B 120V AC Power Supply Module