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6FM1707-3AA10
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生命周期投资回报率：设施的需求，因行业而异。对于规模较小的工艺工程，没有扩展需求，也不需要与其它工艺过程区域集成，因此PLC系统具有较好的投资回报率。DCS系统可能具有较高的安装成本，但从全生命周期来看，DCS系统所带来的产量增加和安全效益，会抵消一部分成本。
平衡短期需求与长期愿景，对操作确定性和改善工厂运行、维护非常关键。
PLC的故障类型有哪些？
外部设备故障
外部设备就是与PLC实际过程直接联系的各种开关、传感器、执行机构、负载等。这些设备发生故障，会直接影响PLC系统的控制功能。因此，维修PLC，首先要分清是外部设备故障，还是PLC本身故障。
系统故障
1）系统故障是影响PLC系统运行的全局性故障。
2）PLC系统故障可以分为固定性故障、偶然性故障。
3）故障发生后，可以重新启动使系统恢复正常，则就是偶然性故障。如果重新启动不能恢复，而是需要更换硬件或软件，系统才能够恢复正常，则认为是固定性故障。
硬件故障
PLC硬件故障主要指PLC系统中的模板、电路损坏而造成的故障。
软件故障
PLC软件故障包含软件错误、操作错误等。PLC软件故障一般可以通过PLC本身的自诊断测试功能或者软件来查看、检查。
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CONTROL TECHNOLOGY INC. 8 CH ANALOG OUTPUT MODULE 901-H 2562
CONTROL TECHNOLOGY INC. 8PT ANALOG OUTPUT MODULE 901F- 2562
CONTROL TECHNOLOGY INC. 901C-2577 PROFIBUS SLAVE ADAPTER
CONTROL TECHNOLOGY INC. 901C-2597 16 PT DC OUTPUT
CONTROL TECHNOLOGY INC. 901C-2597 32 PT DC OUTPUT
CONTROL TECHNOLOGY INC. 901C-2597 OUTPUT MODULE
CONTROL TECHNOLOGY INC. 901D-2591 16-CH ISOLATED OUTPUT MODULE
CONTROL TECHNOLOGY INC. 901E-2589-A INPUT MODULE 8/16/32 PT
CONTROL TECHNOLOGY INC. 901F-2515 120/240VAC POWER SUPPLY 100W
CONTROL TECHNOLOGY INC. 901F-2550-A ISOLATED ANALOG INPUT
CONTROL TECHNOLOGY INC. 901L-2556 16 CH ISO TC INPUT MODULE
CONTROL TECHNOLOGY INC. ANALOG INPUT 901F- 2572 W/SIEMENS TRANSCEIVER PLUG
CONTROL TECHNOLOGY INC. COMM PROC PROFIBUS FMS MODULE 505-CP5434
CONTROL TECHNOLOGY INC. ETHERNET TCP/IP ADAPTER 505-CP2572
CONTROL TECHNOLOGY INC. FIELD INTERFACE MODULE 505-7201
CONTROL TECHNOLOGY INC. INPUT MODULE 16 PT THERMO COUPLE 505-2556
CONTROL TECHNOLOGY INC. INPUT MODULE 901E 2589-A 8/16/32 PT
CONTROL TECHNOLOGY INC. OUTPUT MODULE 505-4632
CONTROL TECHNOLOGY INC. OUTPUT MODULE 505-4632
CONTROL TECHNOLOGY INC. OUTPUT MODULE 901C- 2597 32PT
CONTROL TECHNOLOGY INC. REMOTE BASE CONTROLLER 901G-2500-RIO-A
Converge Electric Cable 645 / 0355 18 awg MPP FT-6 ISOTEC 4 Conductor
Cooling Fan Unit Indramat LEM-RB090B2XX
COOPER / LUMARK * PS15 WALL MOUNT SECURITY LIGHT 150W HPS MT W/GLASS LENS, LAMP
COOPER BUSSMANN LP-CC-30 YELLOW LOW PEAK FUSES LOT OF 5
COOPER LTB100 1" STRAIGHT MALE CONNECTOR WITH INSULATED THROAT BUSHING-6PCS
COPLEY CONTROLS CORP. 800-250B SERVO DRIVE AMPLIFIER 03980384
COPPER STRANDED E53058 F 6AWG 600VOLT VW-1NYLON FT1 BLACK WIRE
COPPER/CROUSE CONDUIT FITTING FOR HAZARDOUS LOCATIONS ECGJH124
COPPER/CROUSE* CONDUIT FITTING FOR HAZARDOUS LOCATIONS ECGJH124
COROMANT A393 .14-25 20 203 COLLET CHUCK EXTENSION
COROMANT R 166G 3AL SIP 40399 CEMENTED CARBIDE INSERTS * 10 PCS *
COROMANT R 166G 3AL SIP 40513 CEMENTED CARBIDE INSERTS * 10 PCS *
COROMANT R 166G-3AL 41272 120 SIP CARBIDE INSERTS
COROMANT R166G 3 AL SIP 40609 120 CARBIDE INSERTS
COUNTERSHAFT 2 X 20-7/8 TYPE C , A602915032, A13 MTR 2-A4
CRISPLANT 450B900 JDP6508-8/L MCB/TCB2 CONTROLLER REV.1.10
CROWN 02PD121508-PPS H7P PARKING CABLE
CROWN C628405 PARKING CABLE
CROWN INTEGRITY PARTS 122003 SEAT BELT
CRYDOM SOLID-STATE-RELAY D2440
CTE 80-86 PROCESSOR MOTHERBOARD
CULTER-HAMMER ENCLOSURE A0BD0-EXC
CURTIS 933 BATTERY CONTROLLER 933/3D36 W / INDICATOR GAUGE
CURTIS ALBRIGHT SW200EE/463 CONTACTOR
CURTIS ALBRIGHT SW200EE/488 CONTACTOR 24V
CURTIS ALBRIGHT SW200EE-691 CONTACTOR
CUTER-HAMMER Dry type Distribution Transformer S2N11S03N
CUTLER HAMMER 31 120V 60C / P1 110V 50C 505C633G01 COIL WESTINGHOUSE
CUTLER HAMMER C32K-3, C32KN3 SER.C1 200AMP 3PH CONTACTOR COIL 120V
CUTLER HAMMER C32L-2, C32LN3 SER.B1 350AMP 3PH CONTACTOR COIL 120V
CUTLER HAMMER CE15FNS3 CONTACTOR SIZE F
CUTLER HAMMER CONTACTOR 6-2-4 9575H-2007 A RELAY 752
CUTLER HAMMER CONTROL TRANSFORMER MODEL: 42-3000-38
CUTLER HAMMER DH362URK,60A 600V 3POLE HEAVY DUTY SAFETY SWITCH
CUTLER HAMMER PNEUMATIC TIMER 10337H194A 120V
CUTLER HAMMER PNEUMATIC TIMER 110-120V 10337H192-66EO
CUTLER-HAMMER / EATON *NO.A40CD0 SER.A1 DISCONNECT ENCLOSURE
CUTLER-HAMMER / EATON DISCONNECT ENCLOSURE NO.A40CD0 SER.A1
CUTLER-HAMMER / EATON DISCONNECT ENCLOSURE**NO.A40CD0 SER.A1
CUTLER-HAMMER / EATON DISCONNECT ENCLOSURE*NO.A40CD0 SER.A1
CUTLER-HAMMER / EATON NO.A40CD0 SER.A1 DISCONNECT ENCLOSURE
CUTLER-HAMMER 8880C-6502 80 SERIES PHOTOELECTRIC CONTROL UNIT-LOW LEAKAGE
CUTLER-HAMMER 8880C-6502 80 SERIES PHOTOELECTRIC CONTROL UNIT-LOW LEAKAGE
CUTLER-HAMMER A10CN0 NEMA SIZE 0 SER.A1 MOTOR STARTER
CUTLER-HAMMER A10DG1 CEMA SIZE 12 MOTOR STARTER
CUTLER-HAMMER A40BD0-EXC DISCONNECT ENCLOSURE
CUTLER-HAMMER B330AN 3 HP 120V 7 1/2HP 240
CUTLER-HAMMER C10DN3 SER.B1 NEMA SIZE 2 CONTACTOR 45A 3PH 120V-COIL
Cutler-Hammer C320KGS1 CE15ANS3 Contactor
Cutler-Hammer C320TP2 Control Timer with EN60947-5-1 Contactor
CUTLER-HAMMER C320TP2 SER. A1
CUTLER-HAMMER C320TP2 SERIES A1 10-180secs TIMER UNIT
CUTLER-HAMMER C32J-2 CONTACTOR SER.B1 120AMP 120V COIL 63-52-2
CUTLER-HAMMER C32JN3 SERIES B1 3PH 120A CONTACTOR 120V COIL
CUTLER-HAMMER C362N40 ROTARY DISCONNECT SWITCH SER A 1 600V 40A
CUTLER-HAMMER CE15ANS3AB CONTACTOR SIZE A SERIES B1 3 POLE 7 AMP OPEN TYPE
CUTLER-HAMMER CE15DNS3 18AMP 600V 3 P CONTACTOR W/C320KGS1 AUX.CONTACTOR
CUTLER-HAMMER D830MPM MICRO PANELMATE OPERATOR INTERFACE PANEL
CUTLER-HAMMER DISCONNET ENCOLSURE A40BD0-EXC
CUTLERHAMMER EATON A40BD0-EXC ENCLOSURE
CUTLER-HAMMER EATON C32NN3 SER C1 700AMP 600V CONTACTOR
CUTLER-HAMMER ECN0511CBA TYPE 1 ENCLOUSRE W/ AN16DN0 600V STARTER
CUTLER-HAMMER HFD 65K 15AMPS CIRCUIT BREAKER
CUTLER-HAMMER HMCP250G5C SER C MOTOR CIRCUIT PROTECTOR
CUTLER-HAMMER INDUSTRIAL CIRCUIT BREAKER C FD 25K SER.C FD3225 225A 3P 600V
