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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，參照發(fā)生故障的環(huán)境和現(xiàn)象，來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。這類故障常見的有供電電源錯誤、端子接線錯誤、模板安裝錯誤、現(xiàn)場操作錯誤等。
　　2)是否為DCS系統(tǒng)操作錯誤引起的故障。這類故障常見的有某整定參數(shù)整定錯誤、某設(shè)定狀態(tài)錯誤造成的。
　　3)確認(rèn)是現(xiàn)場儀表設(shè)備故障還是DCS系統(tǒng)故障。若是現(xiàn)場一次儀表故障，修復(fù)相應(yīng)現(xiàn)場儀表。
　　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，可重新啟動看能否恢復(fù)，或重新裝載系統(tǒng)軟件重新啟動。
　　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)的自診斷測試功能，DCS系統(tǒng)的各部分都設(shè)計有相應(yīng)的自診斷功能，在系統(tǒng)發(fā)生故障時一定要充分利用這一功能，來分析和判斷故障的部位和原因。

Schneider Modicon AS-B810-008 16 ISOLATED OUTPUT MODULE 115V 48095

Modicon Modbus Plus T-Connector 990NAD23000

Siemens TI 505-4232-A 5054232A TI505-4232-A SIMATIC 505 Digital Input Module QTY

Schneider Electric Input Module TSXDEY16D2

Siemens Simatic Relay Output Module 505-4916 5054916

Siemens 6AV6640-0CA11-0AX1 6AV6 640-0CA11-0AX1 SIMATIC TP177 Micro

SIEMENS SINUMERIK 6FX1118-4AA01 CONTROL CARD

Siemens Simatic S7 6ES7 341-1AH01-0AE0 CP341 Communication Module - Serial

SIEMENS 6SN1123-1AA00-0HA1 6SN1 123-1AA00-0HA1 SIMODRIVE 611 Power Module 8A 1Ax

SIEMENS 6SN1123-1AB00-0CA1 6SN11231AB000CA1 SimoDrive

SIEMENS 6FC5-210-0DA20-2AA1 USPP 6FC52100DA202AA1

AllenBradleyVersaView1000PPanelViewTouchScreen

Allen-Bradley 12 to 120V AC Output Module 1771-OAD - B

ABB Circuit Breaker 80 Amp Sace S3 Shunt Trip/Ground Fault Auxiliary Switch

ADEPT TECH 30846-00020 USPP 3084600020

(4398) Nachi PC Robot Control Board UM837A (4398)

INDRAMAT MAC1120-2-HD-4-C/130-A-0/W-I520LX/S005 NSPP MAC11202HD4C130A

TOSHIBA VT130G1-4330R0H USPP VT130G14330R0H

FANUC A06B-6041-H008 USPP A06B6041H008

DANFOSS 175H4425 USPP 175H4425

RELIANCE ELECTRIC 3RA2003 USPP 3RA2003

MTS SYSTEMS CO MPM1902FRM-418 USPP MPM1902FRM418

MAGNETEK C21-A50VT NSFP C21A50VT

Siemens 6ES5 377-0AB31 -FS- 6ES53770AB31

Siemens 6ES5-701-3LA12 USPP 6ES57013LA12

SIEMENS 6ES5-375-8LC21 USPP 6ES53758LC21

Siemens 6ES5 377-0AA32 -- 6ES53770AA32

Siemens I/O Module 6ES5 482-8MA13 working

SIEMENS 6SE7 222-1HF00-0XA0 6SE7222-1HF00-0XA0 FreeShip

Siemens TP7 6AV3 607-1NH00-0AX0 Touch Panel in Box

Siemens 6SA 8110-0AC00

MERCURY MR-52 DUAL READER INTERFACE MODULE

XEON 6.4GT/s Turbo6000GB HDD 24GB TRUE 3CH DDR3 RAM

Siemens 6ES7 314-1AG13-0AB0 6ES7314-1AG13-0AB0 in Box

Siemens PLC 6ES5-421-8MA11 6ES54218MA11 6ES5421-8MA11

Reliance 0-51893-2

Schneider Modicon AS-984A-816 PLC

Schneider Modicon AS-B224-001 NSFP ASB224001

Schneider Modicon AS-P530-0MA POWER SUPPLY REPAIRED

Schneider Modicon AS-B804-116 Output Module 115VAC

Schneider Modicon AS-B266

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

Siemens Simatic PLC Digital Input Module S7-321

Siemens 6ES7 322-1FH00-0AA0 -FS- 6ES73221FH000AA0

Siemens Simatic 8 Moble Operator Interface Panel 277 HMI w/ Stop Boxed A

SIEMENS 6DD1611-0AD0 MEMORY MODULE /BOX

SIEMENS SINUMERIK SIROTEC MODULE 6FX1190-1AA00

SIEMENS OFFER & WIN SIMODRIVE 6SN1123-1AA00-0HA0 with 6SN1118-0AD11-0AA0

SIEMENS Simodrive 6SN 11451BA01-0DA0 _ 6SN11451BA010DA0

SIEMENS Circuit Board 6FC9310-1MD01 _ 6FC93101MD01

ADLink NuDAQ ACL-6128A Isolated Analog Output Card NIB

ALLEN-BRADLEY 1791-0A32 Block I/O 120V AC 32 Point Module 32 Output

ABB ACS 600 AC AUTOMATION INC MULTIDRIVE 250HP

Active EMC broadband antenna 30MHz to 1GHz BicoLOG 30100 X, , biconical

6ES7316-1AG00-0AB0 6ES7316-2AG10-0AB0 Brand , Factory Sealed,

9 UNIT 1660 MFC, UFC-1660, CF4, H2, Cl2, N2, HBr, SF6, different gas range.

SIEMENS CLD63B600 NSPP CLD63B600

BOSCH 1070071221-102 USPP 1070071221102

BAILEY CONTROLS IEPEP-03 USPP IEPEP03

MODICON AS-P453-641 USPP ASP453641

JOHNSON CONTROLS JNCA NSFP JNCA

CONTROL SYSTEMS 7718-C USPP 7718C

Siemens 6ES5 095-8MA03 6ES50958MA03

Siemens 6ES5-458-4UA12 USPP 6ES54584UA12

SIEMENS 6ES5 777-0BB00 6ES57770BB00

SIEMENS S5 6ES5 465-7LA13 6ES5465-7LA13

Siemens S5-95U CPU 6ES5 095-8MB04 6ES5095-8MB04

SIEMENS 6ES7223-1HF00-0XA0

SIEMENS SIMATIC OP3 6AV3 503-1DB10 Operator Panel

Siemens 6AV7722-1AB10-0AD0 (PC 670)

HP AGILENT 35651C INTERFACE/SIGNAL PROCESSOR MODULE

WS-X6704-10GE Cisco 6500 10 Gigabit EN Interface Module 4 ports

Siemens 6ES5 521-8MA22 6ES5521-8MA22

Siemens LOGO! power 6EP1 331-1SH01 6EP1331-1SH01

Omron C200H-OD211

Schneider Modicon AS-C484-266 ASDC484266 Programmable Controller

Schneider Modicon ANALOG INPUT AS-B875-111 OUT OF BOX

Schneider Modicon AS-J471-600 USPP ASJ471600

Schneider Modicon 24 VDC INPUT AS-B827-032

Schneider Modicon AS-W512-003

Schneider Modicon ZAE-201/AS-BZAE-201 High Speed Counter 1X50/500KHZ ASBZAE201

SM321 16DI 24VDC INPUT MODULE 6ES7-321-1BH02-0AA0

Schneider TELEMECANIQUE XBT-GT-2110 XBTGT2110 with cable

Siemens TI 500-5016 Analog Output Module

Siemens 6AV3 525-1EA01-0AX0 6AV35251EA010AX0 Panel

SIEMENS Sinumerik 6FX1130-6BA00 Module 130. E Stand A.

ECDL Syllabus 5.0 Module 7b Communication Using Ou.....

SIEMENS Simodrive LT-Modul INT. 15A 6SN1123-1AA00-0AA1

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

Adb CPCI-R6780

ALLEN-BRADLEY 800MB-CPB16RAS PUSH BUTTON

ABB 1MRS090416-AAA REA 101 ARC PROTECTION RELAY SYSTEM MAIN MODULE 57976

ACCU SORT 22E8SL NSFP 22E8SL

A06B-6066-H003 FANUC SERVO AMPLIFIER REMANUFACTURED

800' Hollins 3/0 3/0 1/0 Triplex Aluminum URD RHH RHW 600 volt

SIEMENS 3SF7834-6PB00 NSFP 3SF78346PB00

ALLEN BRADLEY 8520-3S10A-BAT-EX4-T1-Y-4-5-7 USPP 85203S10ABATEX4T

ALLEN BRADLEY 6008-LTV USPP 6008LTV

JOHNSON CONTROLS MS-NAE4510-2 USPP MSNAE45102

GENERAL ELECTRIC DS3800NFCD1S1J USPP DS3800NFCD1S1J

YASKAWA ELECTRIC CACR-SR-44SZ1SDY38 NSFP CACRsR44SZ1SDY38

MITSUBISHI MR-J2-100C USPP MRJ2100C

Siemens 6ES5-308-3UC21 USPP 6ES53083UC21

SIEMENS 6ES5 430-7LA12 DIGITAL INPUT MODULE

SIEMENS S5 6ES5 456-4UA12 Digital Output Module

Siemens Digital Output Module 6ES5 454-7LA12 22516

SIEMENS 6ES7 222-1BF00-0XA0 6ES7222-1BF00-0XA0 FreeShip

SIEMENS OP270-6 6AV6542-0CA10-0AX1 Display Panel in Box

Redback AIM-1K-2OC3SM VAC1DEOAAA SMS 1800 2 Port OC3 SM 90 Free Ship

Texas Instruments 5TI5-5020

TERAWAVE 10096-01 M2-0-ALL/2C/10/ATM/ED INTERFACE MODULE FREE SHIP

TSXCUSBMBP Modicon Premium Modbus Plus Converter TSX-CUS-BMBP

Siemens EM 222 6ES7 222-1BF20-0XA0 EM222 PLC

Modicon MMS22351C1A

Schneider Modicon AS-P120-000 Power Supply Module - 1 YEAR RETURN POLICY

Schneider Modicon AS-BDAP-204 SEALED Compact Out ASBDAP204

Schneider Modicon AS-C184-004 USPP ASC184004

Schneider Modicon ASHDTA201 Compact Subrack AS-HDTA-201

Schneider Modicon /Modicon/Input Module AS-BDEO-216/DEO

Schneider Modicon Input Module AS-B825-016

Schneider Telemecanique TSX P57303AM TSXP57303AM

SCHNEIDER AEG DEP215 AS-BDEP-215 MODICON INPUT MODULE 65

PVDM3-64 CISCO 64 -Channel Voice and Video DSP Module

Siemens 6ES5441-4UA14 Simatic Output Module Repaired

SIEMENS 6DD1661-0AB0 COMMUNICATION MODULE

Johnson Controls NU-NCM201-1 NUNCM2011 Network Communication Module -

SIEMENS Simodrive 6SN1135-1BA12-0CA0

SIEMENS Sinumerik 840C Interface 6FC5103-0AD13-0AA0 GWE 570080924900 Ver C

SIEMENS MOORE PRODUCTS 16353-52 I/O EXPANDER BOARDNIB

Allen-Bradley RediPanel Push Button Module2705-P21J1

52002 YOKOGAWA shading pipes type colorimeter

ABB SAFT 110 POW 57411414, , 57411414,

A06B-0148-B177#7076 FANUC SERVO MOTORS REMANUFACTURED

700' Hollins 3/0 3/0 1/0 Aluminum URD Wire RHH RHW Triplex

PERCEPTRON 911-0025 USPP 9110025

ALLEN BRADLEY 1775-MR8 NSFP 1775MR8

ALLEN BRADLEY 1336S-B020-AE-ES5 USPP 1336SB020AEES5

GENERAL ELECTRIC DS3800HPBC USPP DS3800HPBC

TELEMOTIVE 18027 NSPP 18027

SST 5136-DNP-MUL USPP 5136DNPMUL

DAYKIN GPFS-01TBA627 USPP GPFS01TBA627

Siemens 6ES5 955-3LC14 6ES59553LC14

SIEMENS 6ES5 100-8MA02 6ES51008MA02

SIEMENS 6ES5-777-0BB00 USPP 6ES57770BB00

Siemens 6ES5 525-3UA21/6ES55253UA21

Siemens 6AV8 100-0BC00-1AA1 Membrane Keypad FreShip

Siemens LOGO! 12/24RC 6ED1052-1MD00-0BA2

roland prelude 61 key keyboard in VG CONDITION

Telemecanique TSXDET3242

SIEMENS SIMATIC S5 INTERFACE MODULE 6ES5 316-8MA12

Wago 750-461/003-000 2-CHANNEL ANALOG INPUT MODULE

Siemens 7MF4033-1DA00-1AA6-Z Pressure Transmitter

Modicon AS-S491-000

Schneider Modicon DEP216/AS-BDEP-216 Discrete Input WOW

Schneider Modicon AEG/GOULD// DEP-218/AS-BDEP-218 16POINT INPUT MODULE NNB

Schneider Modicon AS-B875-102 INPUT MODULE ANALOG HI SPEED 8POINT 800 SERIES ASB875102

Schneider Modicon AS-521P-011

Schneider Modicon Input Module AS-B837-016

Schneider Modicon AS-M680-008 Memory Module 8K -

Schneider Automation Inc AS-BDAP-216N ASBDAP216N Output Module

SIEMENS 505-4232A INPUT MODULE

RELIANCE ELECTRIC 65C-500 USPP 65C500

Siemens 6FX1130-6BA00 Output Module

SIEMENS Sinumerik Operator Control Panel #6FC3808-3EF21

Power Ware AS400 AS/400 Communications Module XLNT

SIEMENS PW-MODUL 1P 6SN1113-1AB01-0BA1

SIEMENS TERMINAL STRIP CONNECTOR BOARD 6FC9302-2AA 6FC93022AA USMT MILL CNC

SIEMENS 6FC3-061-1EA-Z USPP 6FC30611EAZ

AllenBradley1794-OA16/AFlexI/O120VACOutputModuleB01

ALLEN BRADLEY SWING ARM CATALOG NO. 1771-WA / QTY 10

ABB KP-40 KP40 4000 Amp 4000A Air Breaker MPS-C 2000

Ziatech ZT210 15 S Card Cage w ZT 8907 486 Single Board Computer Card

(U1) 1 UNIMATION INC D918W3 REV K PC BOARD. U1.

MIYACHI MM-730A USPP MM730A

ALLEN BRADLEY 1387-AOB145-A73 USPP 1387AOB145A73

GENERAL ELECTRIC DS3800HMPA1A1 USPP DS3800HMPA1A1

FORNEY UAC100 USPP UAC100

SIEMENS 6ES7-413-1XG02-0AB0 NSFP 6ES74131XG020AB0

RONAN ENGINEERING CO 6.8LC-2000 USPP 68LC2000

VIDEO JET 390646 USPP 390646

Siemens 6ES5 530-3LA12 6ES55303LA12

Siemens CONTROLLER CARD 6GK1143-0TA01

SIEMENS 6ES5-454-4UA12 NSFP 6ES54544UA12

Siemens 6ES5 376-1AA11 /6ES5-376-1AA11 Memory

Siemens S5 Interface Module 6ES5-315-8MA11

Siemens Connector 6ES7392-1AJ00-0AA0 NIB Sealed FreShip

SIEMENS 6DD1640-0AC0 EM11 I/O MODULE PG16

Square D 8030 HIM-131

SEALED SQUARE D S/MAX I/O INTERFACE MODULE 8030-CRM222

WESTINGHOUSE 1505D39G01W0 USPP 1505D39G01W0

Siemens 6FC5370-0AA00-0AA0 SINUMERIK 802D /PCU 210.3

Siemens TP170B 6AV6545-0BB15-2AX0 6AV6 5450BB152AX0 NIB

Siemens 305-25N

Schneider Modicon AS-BVIC-205 4 Channel Counter In ASBVIC205

Schneider Modicon AS-B579-001 COUNTER MODULE HI-SPEED INCOMPLETE

Schneider Modicon DEP 218 / AS-BDEP-218 DISCRETE INPUT MODULE ASBDEP218

Schneider Modicon AS-HDTA-202 SUB RACK 2 SLOTS FACTORY 1 YEAR WARRANTY - NIB

Schneider Modicon AS-B872-002 ASB872002

MODICON 115VAC OUTPUT MODULE B230 501

SIEMENS 6ES7321-1BH02-0AA0 INPUT MODULE 16POINT 24VDC SM321 6ES73211BH020AA0

SCHNEIDER DISCRETE INPUT 16PT 115V DEP 218/AS-BDEP-218

Siemens HMI Operator Panel 6AV6 641-0CA01-0AX1 "FS"

SIEMENS SINUMERIK 6FX1122-1AA01 COUPLING MODULE

Siemens Communication Processor Module 6GK1543-0AA01 37354

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

SIEMENS 6SN1123-1AA00-0DA0 Power Module Simodrive ~60 DAY WARRANTY~

SIEMENS 6FC5203-0AF05-0AB0 Membrane Keypad 6FC5 203-0AF05-0AB0

Allen-BradleyPro-Set700ReplacementTouchscreenTouchpanelInterface

Allen-Bradley - 1794-TBNF

ABB CONTROLLER CARD DSQC335 / 3HAB6182-1

ADEPT TECHNOLOGIES ROBOT #640 & CONTROLLER UNIT #310

(5243) Honeywell Logic Board PWA T/C Mux 51301874-100 (5243)

INDRAMAT MAC90C-0-G-4C/110-A-1/W1520/S01 NSPP MAC90C0G4C110A1W

TRIDIUM INC WEB-545I-AX USPP WEB545IAX

FANUC A06B-6050-H005 USPP A06B6050H005

DOLAN JENNER SS950-40000 USPP SS95040000

RELIANCE ELECTRIC 57552-1 USPP 575521

NACHI UM837A USPP UM837A

MITSUBISHI AD51 USPP AD51

Siemens 6ES5 395-0UA11 6ES53950UA11

Siemens 6ES5-777-1BC01 USPP 6ES57771BC01

SIEMENS 6ES5-377-0AA21 USPP 6ES53770AA21

Siemens 6ES5 421-8MA12 Digital Input Module NIB

Siemens S5 115U CPU 942B 6ES5 942-7UB11