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DCS系统故障诊断步骤
　　DCS系统一旦出现故障，正确分析和诊断故障发生的部位是当务之急。故障的诊断就是根据经验，参照发生故障的环境和现象，来确定故障的部位和原因。这种诊断方法因DCS系统产品不同而有一定差别。
　　1)是否为使用不当引起的故障。这类故障常见的有供电电源错误、端子接线错误、模板安装错误、现场操作错误等。
　　2)是否为DCS系统操作错误引起的故障。这类故障常见的有某整定参数整定错误、某设定状态错误造成的。
　　3)确认是现场仪表设备故障还是DCS系统故障。若是现场一次仪表故障，修复相应现场仪表。
　　4)若是DCS系统本身的故障，应确认是硬件毛病或是软件故障。
　　5)若是硬件故障，找出相应的硬件部位，更换模板。　6)若是软件故障，还应确认是系统软件或是应用软件故障。
　　7)若是系统软件有故障，可重新启动看能否恢复，或重新装载系统软件重新启动。
　　8)若是应用软件故障，可检查用户编写的程序和组态的所有数据，找出故障原因。
　　9)利用DCS系统的自诊断测试功能，DCS系统的各部分都设计有相应的自诊断功能，在系统发生故障时一定要充分利用这一功能，来分析和判断故障的部位和原因。

Schneider Modicon AS-J810-000 USPP ASJ810000

Schneider Modicon NOS MEMORY MODULE AS-P371-001 ASP371001

Schneider Modicon Fast Input Module AS-B829-116 ASB829116 - Lot of 4

Schneider Modicon ASSY POWER SUPPLY AS-P120-000 ~ in box

Schneider TSX08RCOM Telemecanique MODICON NESA PLC I/O

SIEMENS 6ES5-380-7AA11 NSFP 6ES53807AA11

SIEMENS TI 505-4616 AC OUTPUT MODULE

Siemens Digital Output Module 6ES5 441-8MA11 441-8MA12 441-8MA13 free ship

SIEMENS Sinumerik 820G 6FC3801-3AC-Z 6FC8504-1AX00 CRT Monitor Operator Panel

Schneider Automation Communication Module TSX-SCM2111 WARRANTY

SIEMENS 6SN1-162-0EA00-0DA0 NSPP 6SN11620EA000DA0

SIEMENS 6SC6100-0GA11 6SC6100-OGA11 6SC61OO-OGA11 6SC6 100-0GA11 SIMODRIVE Board

SIEMENS 6FC5-111-0CA03-0AA2 NSFP 6FC51110CA030AA2

AllenBradley6182H-12TEH4BVersaViewCE1250HTouchPanelWorkstation

Allen Bradley Versaview Industrial Monitor 6186M-12PT Sealed 2010

ABB du/dt Filter

Adtech AX/4000 Chassis w / Adtech 40128 Ethernet Module

(Good condition) SUNRISE TELECOM SUNSET ISDN SS400 w/ + + +

KEB COMBIVERT 22F4C0R-2421 USPP 22F4C0R2421

ACTUS POWER NPSA-20NN-50E8 USPP NPSA20NN50E8

FISHER ROSEMOUNT DM6004X1-EA2 NSFP DM6004X1EA2

FANUC A05B-2308-C370 USPP A05B2308C370

SCHWEITZER ENGINEERING SEL-121F-X-4256MHNB USPP SEL121FX4256MHNB

QUAD TECH 78400 NSFP 78400

RELIANCE ELECTRIC 69000-3W NSPP 690003W

Siemens 6ES5 460-4UA13 6ES54604UA13

Siemens 6ES5-927-3SA11 USPP 6ES59273SA11

SIEMENS 6ES5-430-4UA14 USPP 6ES54304UA14

Siemens 6ES5 490-7LB11 Screw Terminal Block

Siemens S5 6ES5 458-7LB11 NIB

Siemens 7XP2041-2MA00-0AA0/BB SIPROTEC 7SS60

Siemens 6ES7 321-1BL00-0AA0 -- 6ES73211BL000AA0

Square D 8005 EBU-1

NNB BECKHOFF KL5111 Bus Terminal Incremental Encoder Interface Module KL5111

WS-F6K-PFC3B CATALYST 6500 SUP720 POLICY F. CARD-3B 1YR - ASK 4 QTY

SIEMENS 6ES7-133-0BH01-0XB0 6ES71330BH010XB0 FreeShip

SIEMENS SC6000

Reliance 45C913

Schneider Modicon Gould P451 200 Series I/O Processor AS-P451-622

Schneider Modicon AS-B352-001 OUTPUT MODULE OLD STOCK FREE SAME DAY SHIPPING USA

Schneider Modicon AS-S908-012 USPP ASS908012

Schneider Modicon AS-B882-239 ASB882239 High Speed Counter

Schneider Modicon AS-B806-032 Output Module

Modicon AS-BDAP-218 16 Point Output Module

SIEMENS MOORE IDM 39IDM115ACCAN APACS INPUT DISCRETE MODULE -GUARANTEED

Siemens 6ES5 451-7LA11 -- 6ES54517LA11

SIEMENS PMI FIREFINDER PERSON MACHINE INTERFACE SYSTEM

SIEMENS Control Rack 6FC3741-0FB Z_ Genumerik 3G Unit Sinumerik 6FC 3741 OFB

VEEDER ROOT TLS RS 232 COMMUNICATION MODULE 330719-010

SIEMENS 6SN1118-0DG21-0AA0 6SN11180DG210AA0

SIEMENS SIMODRIVE 611 6SN1118-0DK21-0AA0 NIB

SIEMENS 6FC5501-0AB11-0AA0 802CE Membrane Keypad

ADVANTECH PCI-1734 32-channel Digital Output Card

ALLEN-BRADLEY 1771- OGC +5V TTL OUTPUT MODULE

ABB AUTOMATION LINE SUBSTATION REF543AM129AAAA

Adept MV-10 30340-40000

6SE7033-7EG70 SIEMENS MASTERDRIVE 370AMP 200kW 360-480VAC MOTION CONTROL P2

HONEYWELL 51195066-200 USPP 51195066200

SYMAX 8030-CRM-580 USPP 8030CRM580

CUTLER HAMMER S801V36N3S USPP S801V36N3S

COMPUMOTOR Z620-MO-25 NSFP Z620MO25

NUM 1020M USPP 1020M

MITSUBISHI MR-J2S-11KB USPP MRJ2S11KB

GEM80 8108-4003 USPP 81084003

Siemens 6ES5 262-8MB12 6ES52628MB12

Siemens 6ES5-482-7LA11 USPP 6ES54827LA11

SIEMENS 6ES5-312-3AB31 USPP 6ES53123AB31

SIEMENS Simatic S5 6ES5 455-4UA11 Output Module

Siemens 6ES5 482-3BA11 OUT / INPUT MODULE MO

SIEMENS 6FM1706-3AB20 in Box

Siemens TP177 6AV6640-0CA11-0AX0 Touchscreen Glass

Siemens 6ES5465-4UA12

Juniper PE-1OC12-ATM-MM Interface Module ATM MMF OC12 PIC M5 M7i M10 M10i Router

Zebra TLP 2844 Label printer B/W direct thermal TLP 2844

Siemens 6ES7 212-1BB23-0XB0 6ES7212-1BB23-0XB0 FreeShip

Siemens OP27 6AV3 627-1JK00-0AX0 Membrane Keypad

PLC DIRECT H4-ENET

Schneider Modicon AS-B846-001 ANALOG MULTIPLEXER

Schneider Modicon AS-584L-121 USPP AS584L121

Schneider Modicon AS-M780-048 USPP ASM780048

Schneider Modicon AS-9592-000 Memory Module D908 Exec Cart Lot of 2

Schneider Modicon 984 SERIES 7-SLOT RACK AS-H819-209

Schneider Modicon /Modicon/AS-B828-016 I/O Module

Siemens Texas Instrument 305-01AD Input Module Analog

Telemecanique HMI to Allen Bradley Logix1000 Cable

Siemens Simatic S7 Output Module 1P 6ES7 322-1HF01-0AA0 Warranty

SIEMENS 3NA5-814 USPP 3NA5814

SIEMENS SINUMERIK 840D/DE NCU 571.5 6FC5357-0BB15-0AA0 6FC53570BB150AA0 NIB

Bogen Communications SCR25A Call-In Module for SBA225 Panel

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC5247-0AA00-0AA2

SIEMENS PANELVIEW 6FC5210-0DF20-0AA0

Advantech PCI-1610CU

Allen-Bradley 2711P-T12C4D1 PanelView Plus 1250 Touch/Enet/RS-232 64MB DC

ABB 4160 Robicon Test Station Max KV 4.76 60Hz 1200A

AccuWeb, Inc. Micro 4000 CTL 4110-01 Type 1 Enclosure

A575-030 GOULD DRIVES AS-IS

836800 WESTINGHOUSE CONTROLLERS REMANUFACTURED

SIEMENS 6ES7-742-0AC00-0BA0 USPP 6ES77420AC000BA0

ASEA BROWN BOVERI DSMB-127 USPP DSMB127

APW MCLEAN HB11-0416-G307 NSFP HB110416G307

MITSUBISHI A3H-CPU-P21 USPP A3HCPUP21

INDRAMAT DDS02.1-A100-DS03-02-FW NSFP DDS021A100DS0302

ALLEN BRADLEY 2711-K5A5 FNFP 2711K5A5

SKF 7018-ACD/P4ADGA NSFP 7018ACDP4ADGA

Siemens 6ES5-415-7AB11/6ES5415-7AB11 INPUT MODULE XLNT

SIEMENS 6ES5 464-8MB11 -- 6ES5 464-8MB11

SIEMENS 6ES5 951-7LB14

Siemens PLC INPUT MODULE6ES5 431-8MA11 WOW

Siemens 6ES7 340-1CH02-0AE0 6ES7340-1CH02-0AE0 NIB

Siemens PLC Lithium Battery SL-750 SL750 no plug NIB

pulls AP763A Hp StorageWorks MDS 600 Dual I/O Module Option Kit 498472-001

HARLEY DAVIDSON RADIO IPOD INTERFACE MODULE HDPDPLUS2

V/R 847490-206 MECH DISP INTERFACE MODULE

SIEMENS 6AV6545-0AG10-0AX0 MP270B-10" Touch Glass

Siemens LOGO 24RC 6ED1 052-1HB00-0BA3

Northern Telecom wpb-1-1

Schneider Modicon B829 5V TTL Fast Input AS-B829-116

Schneider Modicon AS-521P-007 PCB-C521 REV C Board Card

Schneider Modicon AS-E902-141 NSPP ASE902141

Schneider Modicon Gould AS-P484-600 Power Supply Controller ASP484600 1.1A 110Vac

Schneider Modicon AS-B825-016

Schneider Modicon PC-A984-145 CPU Memory Module+AS-P120 AC Power+DEP 216 Input Module

Schneider/Modicon 140NOE77101 NIB

Schneider Proximity Sensor XS530B1DAL2 NIB DC12-48V

SiemensOperatorPanelCorosOP15-C16AV3515-1MA20-1AA0

Siemens 6AV6545-0DA10-0AX0 MP370 6AV65450DA100AX0 Fast Shipping

SIEMENS SIMADYN OPERATOR PANEL 6DD1670-0AF0 IN BOX

GE FANUC IC693CMM311J IC693CMM311J Communications Control Module

SIEMENS SIMODRIVE PW MODULE 6SN1113-1AB01-0BA1 Ver.C

SIEMENS SINUMERIK 6FC5203-0AF00-0AA0 Membrane Keypad

SIEMENS MOORE 16137-116 APACS/-QUADLOG CABLE INTERCONNECT I/O MODULE 15M 20629

ALLEN-BRADLEY OUTPUT MODULE 1771-OA SERIES B

AB 2711-B5A14/H Panelview 550 2711B5A14/H NIB

Absolute Encoder TR ELEC CE-65-M Art.Nr:110-01768 DeviceNet In Stock Dubai UAE

A06B-0373-B569#7008 FANUC SERVO MOTORS

75 HP ELECTRIC MOTOR 3600 RPM 365TSC FRAME NEMA PREMIUM EFFICIENT SEVERE DUTY

RELIANCE ELECTRIC 801463-R USPP 801463R

ALLEN BRADLEY 2711-TC1MC USPP 2711TC1MC

ALLEN BRADLEY 1771-NT2 NSFP 1771NT2

HONEYWELL 80363969-150 NSFP 80363969150

WINDSOR MPMUW1 USPP MPMUW1

TOTAL CONTROL PRODUCTS QM1104ROA-D NSFP QM1104ROAD

GIDDINGS & LEWIS 502-03840-20 USPP 5020384020

Siemens 6ES5-240-1AA12 USPP 6ES52401AA12

SIEMENS 6ES5 375-1LA15 6ES53751LA15

SIEMENS BOARD 6ES5-400-0AA11 6ES5 400 0AA11 6ES54000AA11 SPCB467 SIEMEN

Siemens 6ES5 980-0AE11 NSFP 6ES59800AE11

Siemens 6ES5318-8MB12 6ES53188MB12

Siemens Modem 6ES7241-1AA22-0XA0

Reliance Electric 57405-E 0- 57405E Analog I/O Drive Module

Texas Instruments 500-5018

Spirent Adtech AX/4000 Utopia Interface pn 400323

Value upgrade kit w/Onboard Videoaudio|550W|Elite Case

SIEMENS C98043-A7001-L2 6RA70 CUD1 CONTROL BOARD

Modicon AS-W617-012

Schneider Modicon AS-WBXT-201 BUS EXTENSION CABLE FS

Schneider Modicon AS-B827-032 24VDC INPUT MODULE

Schneider Modicon AS-BDAP-216 NSPP ASBDAP216

Schneider Modicon AS-B875-102

Schneider Modicon TSX Compact DEP216/AS-BDEP-216

Schneider Modicon B805 AS-B805-016 INPUT MODULE 115 V AC

Schneider Modicon Premium TSXAEY414 TSX 4 ANA I. Multirange

SCHNEIDER/MODICON PREMIUM16 CH DIGITAL INPUT MODULE 24VDC/ACTSXDEY16A2

RELEASE SuperMicro X9DR3-LN4F MB FULL MFR

Siemens 6ES5-470-7LB13 Analog Output Module

SIEMENS SINUMERIK S7-300 6FX1124-6AD02 6FX11246AD02 NIB

MITSUBISHI QX524 SIO COMMUNICATION MODULE

SIEMENS Simodrive 611 LT 160A 6SN1124-1AA00-0EA1

SIEMENS Sinumerik Module Modul 6FC5111-0CA03-0AA2

SIEMENS CARLING SWITCH 6FC54-73 NSPP 6FC5473

ALLENBRADLEY1756-OA8FACTORYSEALEDCONTROLLOGIXOUTPUTMODULE.

Allen Bradley SLC 500 Output Module 1746-OB32 Ser C White Label

ABB robot power supply 3HAB8101-16/11C DSQC358G

A06B-0142-B084#0076 FANUC SERVO MOTORS REMANUFACTURED

0010-03338 ASSY HEATER 8" SR OSCR WXZ

MODICON MM-PMA2-20S NSFP MMPMA220S

ALLEN BRADLEY 150-A360NBD USPP 150A360NBD

ADEPT TECH 90400-20045/XY-HRS-045M201 USPP 9040020045XYHRS0

GE FANUC TGT-AI0V-16-0-AC USPP TGTAI0V160AC

SQUARE D 7S1FIS NSFP 7S1FIS

SIEMENS 6FM1723-3CA00 USPP 6FM17233CA00

ALLEN BRADLEY 810-NX46 USPP 810NX46

Siemens 6ES5 942-7UA11 6ES59427UA11

Siemens SIMATIC S5 095U CPU 6ES5095-8MA05 BNIBOVPFACTORY SEALED

SIEMENS 6ES5-525-3UA11/6ES5525-3UA11 INTERFACE XLNT

Siemens 6ES5 451-4UA12 I/O Module

Siemens 3RG7642-3BG00 Proximity Sensor Switch Opto-Bero

Siemens ET200M 153-1AA03-0AB0

Scalable package: Ask about adding more SB168-ES units

Square D 9080 K-1

Siemens ASI Interface Module 3RK2200-0CE02-0AA2

WE SHIP SAME CISCO AIR-LAP1261N-A-K911GN CTLR-BASED AP EXT ANT A REG DOMA

Siemens 6SE6420-2UD23-0BA1 6SE64202UD230BA1

Siemens TP27-6 6AV3627-1NK00-2AX0 Touchscreen Glass

Schneider Modicon Primary & Secondary Rack Cables AS-WBXT-201 6873

Schneider Modicon AS-BBKF-201Compact Inter-S Mstr ASBBKF201

Schneider Modicon AS-B828-016 ASB828016 5VDC TTL Output

Schneider Modicon AS-B873-001 MODULE

Schneider Modicon AS-W808-002 NSPP ASW808002

Schneider Modicon AS-D908-110 Distributed Control Processor UVG

Schneider PLC Output Module TSXDSY16R5

SIEMENS 6ES5464-8ME11 AMALOG INPUT MODULE

RS Rohde Schwarz SMJ100A-B106 loaded w/ options

SIEMENS COROS OP15-B OPERATOR PANEL CAT6AV3515-1MA01

SIEMENS Sinumerik 840C/840CE CRT 6FC5103-0AB01-0AA2 NIB

Rivulet Communications NCU 2B-RJ RTM Transition Module

SIEMENS 6SN2155-0AA10-1BA1 SIMODRIVE SERVO MOTOR w/STOBER C002G0560MT10 SERVOFIT

SIEMENS 6RB2040-0FA00/6RB20400FA00 SIMODRIVE BOARD XLNT

SIEMENS 6FC5110-0DB03-0AA4 NSFP 6FC51100DB030AA4

AllenBradley2711-T6C20L1/BPanelView600Touch/Color/EtherNet/RS232-Print

Allen Bradley VersaView 1700P Interface Panel Catalog 6181P-17NPXPH

ABB EH800C-4 IN A 900 amp

ADVANCED ENERGY / 3150010-015

(J3) 1 ALLEN BRADLEY 1336-B010-EOD-L3 DRIVE (J3)

KUKA 001-034-92 USPP 00103492

AEROTECH UNIDEX -III/20/WX2/SLX2/4020X2 USPP UNIDEXIII20WX2SL

FOXBORO P0960AW NSFP P0960AW

FANUC A06B-0503-B001 USPP A06B0503B001

SICK OPTIC ELECTRONIC DME3000-111S01 USPP DME3000111S01

RELIANCE ELECTRIC 0-51879-1 USPP 0518791

SANYO DENKI PY0A100E0XXYPH1 USPP PY0A100E0XXYPH1

Siemens 6ES5 464-8MC11 6ES54648MC11

Siemens 6ES5-941-7UA12/6ES5941-7UA12 CPU MODULE NNB

SIEMENS 6ES5-431-4UA12/6ES5431-4UA12 DIGITAL INPUT MODULE NIB