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DCS系統(tǒng)故障診斷步驟
　　DCS系統(tǒng)一旦出現(xiàn)故障，正確分析和診斷故障發(fā)生的部位是當(dāng)務(wù)之急。故障的診斷就是根據(jù)經(jīng)驗(yàn)，參照發(fā)生故障的環(huán)境和現(xiàn)象，來(lái)確定故障的部位和原因。這種診斷方法因DCS系統(tǒng)產(chǎn)品不同而有一定差別。
　　1)是否為使用不當(dāng)引起的故障。這類故障常見(jiàn)的有供電電源錯(cuò)誤、端子接線錯(cuò)誤、模板安裝錯(cuò)誤、現(xiàn)場(chǎng)操作錯(cuò)誤等。
　　2)是否為DCS系統(tǒng)操作錯(cuò)誤引起的故障。這類故障常見(jiàn)的有某整定參數(shù)整定錯(cuò)誤、某設(shè)定狀態(tài)錯(cuò)誤造成的。
　　3)確認(rèn)是現(xiàn)場(chǎng)儀表設(shè)備故障還是DCS系統(tǒng)故障。若是現(xiàn)場(chǎng)一次儀表故障，修復(fù)相應(yīng)現(xiàn)場(chǎng)儀表。
　　4)若是DCS系統(tǒng)本身的故障，應(yīng)確認(rèn)是硬件毛病或是軟件故障。
　　5)若是硬件故障，找出相應(yīng)的硬件部位，更換模板?！?)若是軟件故障，還應(yīng)確認(rèn)是系統(tǒng)軟件或是應(yīng)用軟件故障。
　　7)若是系統(tǒng)軟件有故障，可重新啟動(dòng)看能否恢復(fù)，或重新裝載系統(tǒng)軟件重新啟動(dòng)。
　　8)若是應(yīng)用軟件故障，可檢查用戶編寫的程序和組態(tài)的所有數(shù)據(jù)，找出故障原因。
　　9)利用DCS系統(tǒng)的自診斷測(cè)試功能，DCS系統(tǒng)的各部分都設(shè)計(jì)有相應(yīng)的自診斷功能，在系統(tǒng)發(fā)生故障時(shí)一定要充分利用這一功能，來(lái)分析和判斷故障的部位和原因。

Siemens C79458-L2197-A1

SIEMENS SIMATIC PANEL PC 870 PC870 6AV7743-2AC00-0AA0 Membrane Keypad

Schneider Modicon Automation AS-P810-000 ASP810000 Power Supply Module -NO BOX

Schneider Modicon ASMBKT085 MB+ Connector AS-MBKT-085

Schneider Modicon AS-BDEO-216 USPP ASBDEO216

Schneider Modicon #NAME

Schneider Modicon MODICON/ AS-W808-002 CABLE ASSEMBLY REMOTE I/O SIG XLNT

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Schneider Modicon TSX Compact M AS-BDAP-218 ~ SURPLUS~

SMCSI EX250-IE3 DEVICENET INPUT MODULE

Schneider Telemecanique XB4-BL42 Push Button Switch

SIEMENS TI 505-4908 RELAY OUTPUT MODULE

Siemens 6AV3 545-0CC10-0AX0 6AV3 5450CC100AX0 Panel

SIEMENS SINUMERIK 6FX1122-1AA01 COUPLING MODULE

ESI LASER TIMING/COMMUNICATION MODULE BOARD CKA 63116

SIEMENS SIMODRIVE PERM.MAGNET MOTOR 1 FT5036-0AH01-9-Z

SIEMENS SIMODRIVE 6SN1145-1BA02-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC53562ZM

Allen-Bradley 800T-B6 30.5mm Type 4/13 Push Button Red

ABB 15 KV Advac Panel Vacuum Circuit Breaker Cell Medium Voltage DPU PT complete

ACC, DIFFERENTIAL MULTIPLEXER, 40 CH, 7702 2074767

A06B-6058-H322 FANUC SERVO AMPLIFIER REMANUFACTURED

8" LCD 800x600 Video Zoom Microscope 3.3x-147x Without Stand

SHIMADZU 4826 USPP 4826

ALLEN BRADLEY 803-A12 USPP 803A12

ALLEN BRADLEY 3500-P72 NSPP 3500P72

INVENSYS T-27MARKII NSFP T27MARKII

GENERAL ELECTRIC DS3800HRMB1G1D USPP DS3800HRMB1G1D

YAMATAKE J-HAM10 USPP JHAM10

MILLTRONICS 7ML1127-0EA21 NSPP 7ML11270EA21

Siemens 6ES5-305-7LB11 NSPP 6ES53057LB11

SIEMENS 6ES5 430-4UA13 6ES54304UA13

SIEMENS S5 6ES5 430-4UA13 Digital Input Module

Siemens Digital Input Module 6ES5 430-7LA12 27680

Siemens 6ES7 216-2AD23-0XB0 6ES7216-2AD23-0XB0 in Box, Seal Intact, FreeShip

SIEMENS OP270 6AV6 542-0CA10-0AX0 6AV6542-0CA10-0AX0

RELEASE SuperMicro X9DBL-IF Motherboard CHECK W/ US FOR AVAILABILITY

Texas Instruments 5TI-3000

Telenex PL-951-162-2 ISDN S/T/U Interface Module

TSXETY110 Modicon Premium TCP/IP TSX-ETY-110

Siemens DCS Module 6DS1901-8BA in Box, Seal opened,

Modicon MM-PMC1-400C

Schneider Modicon Gould AS-B814-108 Selectable I/O PLC Relay Output Module

Schneider Modicon AS-BADU-211 TESTED AND GUARANTEED Analog Input ASBADU211

Schneider Modicon AS-BSIM-203 USPP ASBSIM203

Schneider Modicon AS-E381-902

Schneider Modicon AS-BDAP-216N ASBDAP216N DC Output

Schneider Modicon I/O Housing B548 AS-B548-000 ASB548000

SCHNEIDER Telemecanique Switch XB4 BVB3

Schneider Automation Inc 140 DDI 841 00 140DDI84100 Input Module

PWR-4000-DC 4000W DC POWER SUPPLY FOR CATALYST 6500/7600 1YR - ASK 4 Q

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SIEMENS 6DD1-641-0AC0 NSPP 6DD16410AC0

LAWN 100-RSL Lawn 100RSL Communication Module - Without Power Cord -

SIEMENS SimoDrive 6SN1130-1AA11-0BA0 _ 6SN 1130-1AA11

SIEMENS SINUMERIK 840C NC CPU 6FC5110-0BB01-0AA2

SIEMENS Moore XTC Transmitter-Controller 340DBBSAAB NN213

ALLEN-BRADLEY SLC 500 1746-OB8 OUTPUT MODULE QUANTITY

ALLEN BRADLEY RIGHT HAND DOOR HARDWARE KIT 1494V-L3

ABB SACE PR231/P W/ BK15494 P4KLAM04006 OUT OF

A06B-0148-B175#0076 FANUC SERVO MOTORS REMANUFACTURED

7 Digiboard DBI A/N30000354 Full size I/O ISA card

PACIFIC SCIENTIFIC SC755A001-01 USPP SC755A00101

ALLEN BRADLEY 1771-NT1 FNFP 1771NT1

ALLEN BRADLEY 1336S-B010-AN-EN-GM1-L4 USPP 1336SB010ANENGM1

GENERAL ELECTRIC DS215SLCCG2AZZ01B NSPP DS215SLCCG2AZZ0B

TELEMECANIQUE ATV-66D23-N4 USPP ATV66D23N4

SQUARE D LC-26600AC USPP LC26600AC

CUTLER HAMMER AGSCH120N030040 NSFP AGSCH120N030040

Siemens 6ES5 951-7NB21 -- 6ES59517NB21

SIEMENS 6ES5-752-0AA23/6ES5752-0AA23 INTERFACE MODULE NIB

Siemens 6ES5 498-1AA41 USPP 6ES54981AA41

Siemens 6AV6642-0DA01-1AX1 OP177B No Box

Siemens LOGO 6ED1 055-1CB00-0BA0 in sealed box

RPS MKS ASTRON AX7685 GENERATOR

Telemecanique TSX1723428

Siemens Simatic 6ES7 151-1AA05-0AB0 6ES71511AA050AB0 Interface Module

Wago 750-478 2-CHANNEL ANALOG INPUT MODULE

SIEMENS 6SL3211-0KB13-7UA0 0.37KW 220V

Modicon AS-P801-001

Schneider Modicon DTA 200/AS-HDTA-200 DTA200ASHDTA200 Primary Subrack

Schneider Modicon ASB232501 Output Module AS-B232-501

Schneider Modicon AS-B875-011 8CH Analog Module ASB875011

Schneider Modicon AS-W922-015 GENERIC OEM CABLE ASW922015

Schneider Modicon Gould AS-C484-266 484 Controller Programmable

Schneider Modicon AS-J892-001 Communication Module ASCII 984/800 RI/O INTERFACE

SCHNEIDER AUTOMATION PM+ 1000 MODBUS PLUS INTERFACE NNB

SIEMENS 505-4332 MODULE DIGITAL INPUT 505 32IN 14-30VDC 5054332

RELIANCE ELECTRIC I/O PROCESSOR MODULE 45C200A

SIEMENS 7MH71561AA001AA MILLTRONICS SF500 INTERFACE NIB

SIEMENS SINUMERIK OP 032 6FC5203-0AB20-0AA1 NIB

Prosoft MVI56-ADM 'C' Communications Module MVI56DAM

SIEMENS Parameter Circuit Board 6SN1114-0AA01-0AA0

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D 6FC5247-0AA00-0AA26SN1123

SIEMENS 6FC3521-0AC-Z USPP 6FC35210ACZ

ALLENBRADLEY2706E43J128B1OPERATORINTERFACEDATA

Allen Bradley Terminal Board 9101-1779 Amphenol Connector /Sealed

ABB K - Line K-600S 600V 600A LI AIR CIRCUIT BREAKER

Zehnb 850 incircuit Test System Zehnb 810 ICT sold for parts

(SIEMENS) WARM BOOT 3RW4444-6BC44 good in condition for industry use

MITSUBISHI FRSX2-18.5K USPP FRSX2185K

ALLEN BRADLEY 1336VT-B050-EAS-FA2-L1 USPP 1336VTB050EASFA2

GENERAL ELECTRIC 6KDV3400Q2B20 NSFP 6KDV3400Q2B20

FLEXMATE INC 3-USP-G02 USPP 3USPG02

SIEMENS 6ES5-927-3SA12 USPP 6ES59273SA12

REXROTH DM-15K-1101-D USPP DM15K1101D

TOLEDO SCALE 4100PA NSFP 4100PA

Siemens 6ES5 524-3UA15 6ES55243UA15

Siemens 6FM1470-4AA25 6FM14704AA25 S5 w/ 6ES5 373-1AA81

SIEMENS 6ES5-451-8MD11 USPP 6ES54518MD11

Siemens 6ES5 375-0LA11 USPP 6ES53750LA11

Siemens S5 DIN RAIL MOUNTS INCLU 6ES5 710-8MA41

Siemens CABLE 6ES7 901-0BF00-0AA0 HMI MPI to S7-300

Siemens 6ES5 420-4UA14 -FS- 6ES54204UA14

Square D 8030 DLM-120

SCHNEIDER TELEMECANIQUE OTB1E0DM9LP ETHERNET INTERFACE MODULE FREE SHIP

WiredWIFIIndoorAudioSDRemote RecordiPhoneiPad

Siemens 6ES7953-8LG20-0AA0 128K MMC Card in Box ping

Siemens TP170A 6AV6 545-0BA15-2AX0 LCD Display 90%

Sick 7023059

Schneider Modicon ASH810208 PERFECT 800 Series Rack AS-H810-208

Schneider Modicon AS-B573-010 INPUT MODULE REPAIRED

Schneider Modicon Controller AS-J878-100

Schneider Modicon AS-H827-209 11-Slot PLC Module Rack Chassis 984

Schneider Modicon AS-B846-001 ANALOG MULTIPLEXER

Modicon 1646-4 Computer Interface Modem

Siemens 6ES7-332-5HB01-0AB0 Input Module Analog

SCHNEIDER MODICON 140CPU43412U 140 CPU 434 12U TSX Quantum

SIEMENS MC S85 OPERATOR PANEL 853 362 GOOD TAKEOUT

SIEMENS Sinumerik 6FX1120-2CA00 Memory Module Card

Siemens S5 Communications Processor Module 6ES5 525-3UA21 12mth Warranty

SIEMENS 6SN1123-1AA00-0HA1 Power Supply Module 8 Amp WOW

SIEMENS 6SN1123-1AB00-0AA1 6SN1 123-1AB00-0AA1 SIMODRIVE 611 Power Module 15A

SIEMENS 6FC5210-0DA20-1AA0 6FC5 210-0DA20-1AA0 SINUMERIK 840D MMC 103 Version B

AllenBradleySLC500OutputModule1746-OB16SeriesD

Allen-Bradley - 2711P-T7C4D1 - NO BOX

ABB CIRCUIT BREAKER S5H400MW-2S4W

ADEPT TECH 90400-11140/XY-HRS-140AH404 USPP 9040011140XYHRS1

(4667) Square D Control Card 52011-038-54 125-25 Constant 4667

INDRAMAT MAC112A-0-VD-3-C/130-A-1 USPP MAC112A0VD3C130A

TOSHIBA VT130G2-4400 USPP VT130G24400

FANUC A06B-6044-H008 USPP A06B6044H008

DANFOSS 175L2045 USPP 175L2045

RELIANCE ELECTRIC 419003-R NSPP 419003R

NACHI F2C-T355-ZB25-94 USPP F2CT355ZB2594

MEASUREX 052940-00 USPP 05294000

Siemens 6ES5 377-0BB41 6ES53770BB41

Siemens 6ES5-752-0LA22 NSPP 6ES57520LA22

SIEMENS 6ES5-376-0AA31 USPP 6ES53760AA31

Siemens 6ES5 385-8MB11 6ES53858MB11 High Speed Counter

Siemens PG 615 Programmer 6ES5 615-0UA11 WOW

Siemens 6SE7014-0TP50-Z NIB

Siemens TP7 6AV3607-1NH00-0AX0 Touch Panel

Siemens 6SA8110-2BC00

METTLER TOLEDO B90074000A SERIAL INTERFACE MODULE NNB

XENPAK-10GB-SR 10GBASE-SR MODULE FOR CISCO

Siemens 6ES7 314-6BF00-0AB0 6ES7314-6BF00-0AB0 FreeShip

Siemens PLC 6ES7 216-2AD23-0XB0 6ES7216-2AD23-0XB0

Reliance 0-52003

Schneider Modicon AS-9534-002/AS9534002 7 Slot Chassis Rack

Schneider Modicon AS-B225-000 USPP ASB225000

Schneider Modicon AS-P800-003 NICE

Schneider Modicon AS-B805-016 OUTPUT MODULE ASB805016

Schneider Modicon AS-B275-501 10-60 VDC INPUT MODULE GOOD TAKEOUT

Modicon PanelMate Plus MM-PM10300C 92-01685-00 WOW

Siemens Simatic Input Module S7-400 6ES7431-1KF20-0AB0 QTY

Siemens 6ES7 322-1EH01-0AA0 -FS- 6ES73221EH010AA0

Siemens Simatic 6ES7 322-1BF01-0AA0 Output Module

SIEMENS 6DD1611-0AF0 NSFP 6DD16110AF0

SIEMENS Sinumerik System 800 6FC3988-7AF01 9 inch monitor

SIEMENS OFFER & WIN SIMODRIVE 6SN1130-1DB42-0CA0 VSA-MODUL

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SIEMENS Circuit Board 6FC9310-1MB01 _ 6FC93101MB01 _ DO-L1348-1A01

ADb PROX-H471

Allen-Bradley 1785-BCM Output Module

ABB ACS 600 FREQUENCY DRIVE 250HP ACS60402605000B00009R1

Actus Power AC Servo Control Controller NPSA-5NN-55E1 _ NPSA5NN55E1

6ES7317-2FJ10-0AB0 6ES7317-2FK13-0AB0 Brand , Factory Sealed,

90 5 acceptance

SIEMENS PXD63B140H NSFP PXD63B140H

BOSCH 1070075543-101 USPP 1070075543101

BAILEY CONTROLS IMASI-13 USPP IMASI13

MODICON AS-P890-300 NSFP ASP890300

KAWASAKI 50607-1075R03 USPP 506071075R03

CONTROL TECHNIQUES DXA-202 USPP DXA202

Siemens 6ES5 095-8MA04 6ES50958MA04

Siemens 6ES5-458-7LA12 USPP 6ES54587LA12

SIEMENS 6ES5 777-0BC01 BUS TERM L1 W/2METER CABLE

SIEMENS S5 6ES5 470-8MA12 ANALOG CARD

Siemens S5Input Module 6ES5921-3WB14 E Stand F

Siemens 6ES7231-0HC21-0XA0 6ES72310HC210XA0 FreeShip

SIEMENS SIMATIC PANEL PC 870 PC870 6AV7 743-2AC00-0AA0 Membrane Keypad

Siemens 6AW5463-OAB

HP Agilent 54650A HP-IB Interface Module Oscilloscope 54620C 54616C 54615B 54610

WS-X6748-GE-TX Cisco Express Forwarding 720 Interface Module Switch 48 ports -

Siemens 6ES5 921-3UA12 6ES59213UA12 IN BOX

Siemens LOGO! TD text display 6ED1 055-4MH00-0BA0

Omron c200h-ps211

Schneider Modicon AS-BNUL-200 PLC

Schneider Modicon ANALOG OUTPUT MODULE #AS-B872-011

Schneider Modicon AS-J474-000 NSPP ASJ474000

Schneider Modicon 864 Register Output Module AS-B864-001

Schneider Modicon BXT201/AS-WBXT-201

Schneider Modicon /24VDC 16-Pt Input Mod AS-B825-016

SLC500 DC Sink Input Module AB 1746-IB32/C

Schneider Telemecanique XBTGT5330 Touchscreen Glass

SIEMENS TEXAS INSTRUMENTS U-05T 16 POINT RELAY PLC OUTPUT MODULE U05TS5-4-123

SIEMENS 6AC6-935-4DA13/6AC6935-4DA13 INDUSTRIAL MONITOR MODULE XLNT

SIEMENS SINUMERIK 6FX1138-6BB01 6FX11386BB01

Durant 58801-400 58801400 Communications Module -

SIEMENS Simodrive LT Module 8A

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5357 2ZP

Adb PCI-7300A

Allen-Bradley 8000 MBA Module 905981-05 Rev A

ABB 2000kVA, 13800V-480/277 V dry transber

ACCU SORT 920000025 USPP 920000025

A06B-6066-H211 FANUC SERVO AMPLIFIER REMANUFACTURED

800 HP FUJI FR800F1S-4U Variable Frequency Inverter 380-480 V 960 Amps

SIEMENS 4AU3696-0BT10-0AD0 NSPP 4AU36960BT100AD0

ALLEN BRADLEY 8520-3S5A-BAT-EX4-T1-Y-4-5-7 USPP 85203S5ABATEX4T1

ALLEN BRADLEY 6180-ABEBCBAZABZ USPP 6180ABEBCBAZABZ

JOHNSON CONTROLS NU-NCM300-1 USPP NUNCM3001

GENERAL ELECTRIC DS3800NGRA1F1B USPP DS3800NGRA1F1B