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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(cuò)誤、端子接線錯(cuò)誤、模板安裝錯(cuò)誤、現(xiàn)場操作錯(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。　6)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，來分析和判斷故障的部位和原因。

Reliance 45C966

Schneider Modicon AS-BDEP-220/ASBDEP220 Input OFFERS ACCEPTED

Schneider Modicon AS-BDEP-220 BRAND Guaranteed Discreet Input ASBDEP220

Schneider Modicon AS-B350-000 USPP ASB350000

Schneider Modicon AS-H827-107 NSFP ASH827107

Schneider Modicon AS-BDAP-218 ASBDAP218

Schneider Modicon 800 SERIES 7 SLOT RACK AS-H819-007

Schneider Modicon AS-J878-000/ASJ878000 Modem NICE

Schneider Automation TSXDSY16T2 Output Module 16 Point TSX-DSY-16T2 -

SIEMENS 505-6108B ANALOG INPUT MODULE 5056108B

Reliance Shark 45C965 Triac Output Module 45C-965

Siemens 9.5" LCD Monitor 6FM2805-4AR03_6FM28054AR03_6FM28O5-4ARO3_6FM28O54ARO3

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

Prosoft MVI56-GSC Communications Module 1

SIEMENS Module 6SN1123-1AA00-0AA2 (6SN11231AA000AA2)NIB

SIEMENS SIMODRIVE 6SN1145-1BA01-0DA1SINUMETIK 840D NCU 6FC52476SN11236FC5357

SIEMENS 6FC3984-1FB Tape Reader - Used

ALLENBRADLEY2706-NC12DATALINERPROGRAMMINGCABLE

Allen Bradley Terminal Board 9101-1780 Amphenol /Sealed

ABB IRC5 Teach Pendant; Part# 3HAC12929-1 GTPU WITH 10M CABLE

ZEBRA 090-701-00000 USPP 09070100000

(RR12) 1 ALLEN BRADLEY 2711-TA1 SER B PANELVIEW TERMINAL RR12

MITSUBISHI FR-A540-45K USPP FRA54045K

ALLEN BRADLEY 1336VT-B030-EOR-FA2-L3 NSFP 1336VTB030EORFA2

GENERAL ELECTRIC 531X132APGACG1 NSFP 531X132APGACG1

FISHER ROSEMOUNT 3095-MA2CA0018AB10NABS5 NSFP 3095MA2CA0018AB1

SIEMENS 6ES5-921-3WB15 NSPP 6ES59213WB15

REXROTH 0-608-841011 USPP 0608841011

TEXAS INSTRUMENTS PLC PM550-112 USPP PM550112

Siemens 6ES5 523-3UA11 -- 6ES55233UA11

Siemens 6ES5-982-1AA11 USPP 6ES59821AA11

SIEMENS 6ES5-451-7LA11 USPP 6ES54517LA11

Siemens 6ES5 318-8MA12/6ES5318-8MA12 INTERFACE MODULE XLNT

Siemens S5 Digital Output 6ES5 441-7LA11

Siemens C98043-A7007-L1-4

Siemens 6ES5 432-4UA12 -FS- 6ES54324UA12

Square D 8030 CRM-720

SCHNEIDER Ethernet Interface Module OTB1E0DM9LP IN FACTORY BOX

With GBICs

SIEMENS 6ES7643-4BB0 6ES76434BB0 RI45-P2

Siemens Touch Glass for MP277-8 6AV6643-0CB01-1AX1

Servo Dynamics Corp SD2-3060-163-1

Schneider Modicon ASH827103800 Series Rack AS-H827-103

Schneider Modicon AS-B571-001 USPP ASB571001

Schneider Modicon CONTROL MODULE MODEL AS-584A-340 WITH 3 CARDS

Schneider Modicon AS-H819-100 7-SLOT MODULE RACK

Schneider Modicon AS-B840-108 Reed Relay Output Module ITEM GUARENTEED-FULL WARRANTY

MODICON 24VDC OUTPUT MODULE B232 501

SIEMENS 6SE7090-0XX84-0XX0 CONVERTISSEUR INPUT MODULE 62690

SCHNEIDER MODICON 800 I/O 32PT 115V MODULE AS-B806-032

Siemens MODULE 200 X 8POINT 24VDC 5PIN 6ES7-141-1BF10

SIEMENS SINUMERIK 6FX1115-0AB01 SYSTEM 3 VIDEO CARD

Siemens Simatic s7 Communications Module

SIEMENS 6SN1123-1AA00-0EA1 Simodrive LT-MODUL

SIEMENS 6SN1123-1AB00-0HA0 Simodrive Power Module

SIEMENS 6FC5210-0DA21-0AA0 6FC52100DA210AA0

AllenBradleyVersaView6176M-15PN/B6176M15PN

ALLEN-BRADLEY 1201-DMA HMI DOOR MOUNT BEZEL

ABB CIRCUIT BOARD DSQC 307

ADEPT TECH 30350-10352 NSFP 3035010352

(4176) Bently Nevada Tachometer Monitor 3300/50-01-01-00-00 (4176)

INDRAMAT MAC071C-0-NS-4HC/095-B-0/WI518LV NSFP MAC071C0NS4HC095

TOSHIBA VFA5-4450P NSFP VFA54450P

FANUC A06B-6035-H315-H316 USPP A06B6035H315H316

DANFOSS 175H4417 NSPP 175H4417

RELIANCE ELECTRIC 3RA2002 NSPP 3RA2002

MTS SYSTEMS CO 01F0314 NSPP 01F0314

LENZE EVS9323-ET NSFP EVS9323ET

Siemens 6ES5 377-0AA32 -- 6ES53770AA32

Siemens 6ES5-701-3LA11 USPP 6ES57013LA11

SIEMENS 6ES5-375-8LA11 NSFP 6ES53758LA11

Siemens 6ES5 376-1AA21 -- 6ES53761AA21

Siemens Digital Output Module S5 6ES5 441-8MA11

Siemens 6SE7 090-0XX84-6FF5 Worldwide

SIEMENS TP37 6AV3637-1PL00-0AX0 Touchscreen Glass

Siemens 6GK1143-0AA01

Mercedes C230/C240/C300 Sablite Radio Universal Media Interface Module OEM

XEON 6.4GT/s Turbo8000GB HDD 24GB TRUE 3CH DDR3 RAM

SIEMENS 6ES7 314-1AF11-0AB0 6ES73141AF110AB0 in Sealed, Old Box

Siemens PG 702 6ES7 702-0AA00-0YA0 6ES7702-0AA00-0YA0

Reliance 0-51879-5

Schneider Modicon AS-B132-000 PLC

Schneider Modicon AS-B109-000 NSFP ASB109000

Schneider Modicon AS-P500-610 USPP ASP500610

Schneider Modicon AS-B804-116 IN A BOX

Schneider Modicon AS-B260 analog output

Modicon Panelmate Plus MM-PM15-403

Siemens Simatic Rack w/ S7-300 Power Supply SM326 Input SM326 Output Modules

Siemens 6ES7 322-1HH01-0AA0 6ES73221HH010AA0

Siemens Simatic Analog Output Module 6ES5 470-7LB11

SIEMENS 6DD1611-0AB0 USPP 6DD16110AB0

SIEMENS Sinumerik Simodrive Sirotec cable lead 6FX2002-3AC02-1AB0

SIEMENS OFFER & WIN 6SN1123-1AA00-0DA0 Simodrive LT-Modul INT.80A

SIEMENS SIMODRIVE 6SN1112-1AC01-0AA0

SIEMENS CNC I/O Board Module 6FC3984-3RA ___ 6FC 3984

Adb CPCI-R6780

ALLEN-BRADLEY 1791-0B16 SER.B QUANTITY I/O BLOCK 24V DC 16 POINT OUTPUT MODULE

ABB ACH550-VDR-022A-6 AC VARIABLE SPEED DRIVE 20HP/600V E-BYPASS MOTOR STARTER

ACTION INSTRUMENTS AIOI8100 USPP AIOI8100

6ES7315-6FF01-0AB0 6ES7315-6FF04-0AB0 Brand , Factory Sealed,

8bit Microcontroller Family 1K/64 OTP/ROM 87C750 - 2PCS

SIEMENS A1-116-250-504 USPP A1116250504

BLAW KNOX 133618 FNFP 133618

BAILEY CONTROLS DSQC-236G USPP DSQC236G

MODICON AS-P453-621 USPP ASP453621

JOHN CRANE 35113162 NSFP 35113162

COMPUMOTOR DR-1015B-230 USPP DR1015B230

Siemens 6ES5 095-8MA02 6ES50958MA02

Siemens 6ES5-456-7LB11 USPP 6ES54567LB11

SIEMENS 6ES5 760-0AB11 6ES57600AB11

SIEMENS S5 6ES5 465 3AA13 # Ana/Temp Input

Siemens S56ES5926-3SA12 CPU926 Module

SIEMENS 6ES7221-1BF21-0XA0 6ES7 221-1BF21-0XA0 FreeShip

Siemens Simatic CPU214 6ES7 216-2BD20-0XB0 CPU 214

Siemens 5SX22

HP Agilent 10269C General Purpose Probe Interface

WS-X6196-RJ-21 CATALYST CISCO Interface Module

SIEMENS 6ES5 470-4UA12 NIB Seal Intact

Siemens LOGO! PLC to PC CABLE 6ED1057-1AA00-0BA0

Omron C200H-OA222

Schneider Modicon AS-C921-101 Communication Processor Rev A-5

Schneider Modicon Programmable Controller AS-584A-440

Schneider Modicon AS-J378-000 USPP ASJ378000

Schneider Modicon 16 pt output AS-BDAP-218

Schneider Modicon AS-P930-000 MODULE 6 MON WARR OBSOLETE

Schneider Modicon TSX AS-BDAP-210 Output Module NIB

SMC Controller:CEU2P- H0043 Input Output Module

Schneider Telemecanique XBTFC064510 XBTFCO64510

SIEMENS TI 505-3532 DC OUTPUT MODULE

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

SIEMENS Sinumerik 6FX1126-8BA00 Control Card Interface

ECDL V4 Module 7 Inbation and Communication for Mic... Bob Hudson 184224230X

SIEMENS Simodrive LT-Modul Int. 50A Ver A 1P 6SN1123-1AA00-0CA1 6SN11231AA000CA1

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC53572ZF

Adb cPCI-8217 cPCI-8217-004 VGA/LCD Module

ALLEN-BRADLEY 800MB-CPB16RAS PUSH BUTTON

ABB 1600 Amp Type LKE-16 LKE16 MPS-5 MPS5 Air Breaker

ACCU SORT 1000065955 USPP 1000065955

A06B-6064-H303 SPINDLE AMP AC SP-3S FANUC

800 Amp 600 Volt Siemens Sentron HCP367H switch

SIEMENS 1FT6132-6SF71-4TA0 NSFP 1FT61326SF714TA0

ALLEN BRADLEY 8520-1S5A-BAT-EX4-T1-Y-4-5-7 USPP 85201S5ABATEX4T1

ALLEN BRADLEY 5250-MLP2/B USPP 5250MLP2B

ITE SIEMENS HFC326N NSFP HFC326N

GENERAL ELECTRIC DS3800NFCD1L1E USPP DS3800NFCD1L1E

YASKAWA ELECTRIC CACR-PR44BC3CSY72B USPP CACRPR44BC3CSY72

MITSUBISHI FX-784B-9 USPP FX784B9

Siemens 6ES5-308-3UC11/6ES5308-3UC11 INTERFACE MODULE XLNT

SIEMENS 6ES5 430-7LA12 6ES54307LA12

SIEMENS S5 6ES5 451-7LA11 Digital Output Module

Siemens Digital Output Module 6ES5 451-7LA11

Siemens 6ES7 221-1BH22-0XA0 6ES72211BH220XA0 FreeShip

SIEMENS OP270-6 6AV6 542-0CA10-0AX1 Membrane Keypad

Redback PIM-500-E3 1 Port BNC E3 for SMS 500 90

Texas Instruments 5TI5-25806

TERAWAVE 10068-01 M2-0-ALL/2C/RS/ATM/ED Interface Module FREE SHIP

TSXDET3232 Modicon Premium 24 VDC Input TSX-DET-3232

Siemens E48/40 WBUG FG0 GR60 48V40A Rectifier Module

Modicon MM-PMTS-200

Schneider Modicon AUTOMATION AS-BDA P-210 MODULE 5124

Schneider Modicon ASBCTR205 High Speed Counter Module AS-BCTR-205

Schneider Modicon AS-BZAE-204 USPP ASBZAE204

Schneider Modicon ASH827209 PERFECT 800 Series Rack AS-H827-209

Schneider Modicon /MODICON DTA-201/AS-HDTA-201 5-SLOT SUBRACK

Schneider Modicon Input Module AS-B805-016

Schneider Telemecanique TSX Nesa TSX08H04M HMI Panel

SCHNEIDER AEG DEP218 AS-BDEP-218 TSX COMPACT INPUT MODULE 65

PWR-2821-51-AC CISCO 2821 2851 AC POWER SUPPLY

SIEMENS 6ES5-441-4UA14/6ES5441-4UA14 OUTPUT MODULE XLNT

SIEMENS 6DD1660-0AH1 CS51 Free Ship

KLOCKNER-MOELLER UM 1.2-3 COMMUNICATION MODULE UM1.2-3 UM123

SIEMENS Simodrive 6SN1135-1BA11-0CA0 CMI# 1-230-1035A

SIEMENS Sinumerik 840C Interface 6FC5103-0AD13-0AA0_ T-K42025281 Version C

SIEMENS MOORE PRODUCTS 66BA4 PNEUMATIC RELAY 1:4 RATIO 1/4NPT 54715

Allen-Bradley Remote Keypad

520 iKANOS Fusiv IKF68331-A1-PB1-C chips 4/each

ABB SACE-E2B/E-1600 EMAX Power Breaker 1600A 400VAC

A06B-0148-B177#7008 FANUC SERVO MOTORS REMANUFACTURED

700' Aluminum URD Direct Burial Underground Davidson 3/0 3/0 3/0 3/0 Wire

PERCEPTRON 911-0018 USPP 9110018

ALLEN BRADLEY 1775-MEA USPP 1775MEA

ALLEN BRADLEY 1336S-B015-AA-EN-HA1-L5 USPP 1336SB015AAENHA1

GENERAL ELECTRIC DS3800HLND1C1C USPP DS3800HLND1C1C

TELEMECANIQUE TSX-SCM-2012 USPP TSXSCM2012

SSD DRIVES 547-2400-9-8-1-010-1010-1-00 USPP 5472400981010102

DANFOSS 175L1004 USPP 175L1004

Siemens 6ES5 955-3LC12 6ES59553LC12

SIEMENS 6ES5 095-8MC01S5-95U CPU

SIEMENS 6ES5-760-2CA21 NSFP 6ES57602CA21

Siemens 6ES5 524-3UA15/6ES55243UA15

Siemens 6AV7723-2AB10-0AG0 PC670 Membrane Keypad

Siemens LOGO! 12/24RC 6ED1 052-1MD00-0BA6 in Box

Roland UA-1010 Octa-Capture Audio Interface Producer X2 Upgrade Bundle

Telemecanique TSXCTC02

SIEMENS SIMATIC S5 INTERFACE MODULE 6ES5 308-3UB11 free ship

Wago 750-466 2-CHANNEL ANALOG INPUT MODULE

Siemens 6SY7000-0AD86

Modicon AS-S212-250

Schneider Modicon DEP218 AS-BDEP-218 TSX COMPACT INPUT MODULE 65

Schneider Modicon AEG/ AS-DAP-209 Output Module

Schneider Modicon AS-B875-102 IN A BOX

Schneider Modicon AS-516P-002

Schneider Modicon INPUT MODULE ASB805016 AS-B805-016

Schneider Modicon AS-M680-008 ASM680008 Memory Cart

Schneider Automation Inc DAP 216/AS-BDAP-216 DAP216ASBDAP216 Output Module

SIEMENS 505-4308 INPUT MODULE 5054308

RELIANCE ELECTRIC 86474S RECTIFIER STACK REMANNED

SIEMENS 6GF7021-1AA USPP 6GF70211AA

SIEMENS SINUMERIK OP012 6FC5203-0AF02-0AAL MembraKeypad

PROSOFT 3100-MCM COMMUNICATION INTERFACE MODULE 3100MCM

SIEMENS PROFIBUS-DP 6SN1114-0NB00-0AA1

SIEMENS ZOGNO Operator Control 6FC-3471-OAA-Z

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

AllenBradley1794-OB16IsolatedOutputModule

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

ABB K-Line Power Circuit Breaker K1600 K1600M

ZF PRECISION PLANETARY GEAR 2 SPEED, RATIO: 5.5:1.0

(T2-2) 1 AMCI SD17060B-25 STEPPER DRIVE. T2-2.

MITSUBISHI Q4ACPU NSFP Q4ACPU

ALLEN BRADLEY 1370A-RAOA7-0B1E USPP 1370ARAOA70B1E

GENERAL ELECTRIC DS215DMCBG1AZZ02A NSFP DS215DMCBG1AZZ02

FORNEY 35539501 NSFP 35539501

SIEMENS 6ES7-317-2EK13-0AB0 NSFP 6ES73172EK130AB0

ROHM OVS-130-453-399 NSPP OVS130453399