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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。

Siemens 6ES5 710-8MA11 RAIL STB CAB 55-135135

Siemens S5 Digital Input 6ES5-433-7LA11

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

REMAN Allen Bradley 1756-HSC /A ControlLogix High Speed Counter

iDatab ADS-HRN-CH4 T Harness Interface Module

TELLABS 5310Z T1 INTERFACE MODULE

WS-G5487 GENUINE CISCO 1000BASE-ZX EXTENDED REACH GBIC S.MODE

Siemens 6ES7132-4BD01-0AA0 w/ 6ES7193-4CA40-0AA0

Siemens S7-200 EM231 RTD 6ES7231-7PB22-0XA0 EM 231 ping Worldwide

Reliance 45C67

Schneider Modicon GOULD PROGRAMMABLE CONTROLLER AS-584L-231 230V

Schneider Modicon AS-B352-000 USPP ASB352000

Schneider Modicon AS-S908-011 USPP ASS908011

Schneider Modicon AS-B875-111 ANALOG INPUT MODULE FOR PARTS

Schneider Modicon AS-B806-032 120V Output 800 IO ASB806032 Point

MODICON AS-J470-000 ANALOG OUTPUT MEMORY MODULE Q1-5

Siemens PLC Digital Input Module 6ES7 321-7BH01-0AB0 6ES73217BH010AB0

Siemens 6ES5 451-8MR12 -FS- 6ES54518MR12

Siemens Power Supply Sitop Power 20 6EP1436-1SH013_6EP14361SH013_6EP1436-1SHO13

SIEMENS 6SE7090-0XX84-AH02 & 6SE7090-0XX84-3EHO VERSION A V-STAND

Wellfleet Communication 107290 SYNC 34001 NET Module Norb Networks Dual CARD

SIEMENS 6SN1118-0DG21-0AA0 _ 6SN11180DG210AA0 version E

SIEMENS Simodrive 611 6SN1118-0NJ01-0AA1 Free Ship

SIEMENS 6fc5503-0ac00-0aa0 802S Free Ship

Advantech PCI-1610CU

Allen-Bradley 1771-0AD 12 to 120V AC Output Module

ABB Automation AC Gantry Aluminum Motor M3BP 1500r/min 4 pole

ADEPT LINEAR MODULE 90400-20055C ~

6SE7032-6TG50-Z+C43+F01+G44+G91+K01+K11+K80 SIEMENS MASTERDRIVE 260A VECTOR CNTR

HONEYWELL 1870 USPP 1870

SYMAX 8030-CRM-565 NSFP 8030CRM565

CUTLER HAMMER S801T24N3B USPP S801T24N3B

COMPUMOTOR KHJX-DRIVE-720 USPP KHJXDRIVE720

NSK XY-HRS-050-H201 USPP XYHRS050H201

MITSUBISHI MC260-CE NSFP MC260CE

GE FUJI KLC300BE USPP KLC300BE

Siemens 6ES5 262-8MA12 6ES52628MA12

Siemens 6ES5-482-4UA20 NSFP 6ES54824UA20

SIEMENS 6ES5-312-3AB12 USPP 6ES53123AB12

SIEMENS S5-110 6ES5 405-7AB11 E/I Module NOS

Siemens 6ES5 465-4UA12 6ES54654UA12 Analog Input Module

Siemens 6FC5510-0BA00-0AA0 + 6FC5511-0CA00-0AA0

Siemens TP177 6AV6 640-0CA11-0AX1 Touch Glass + Film

Siemens 6ES5463-4UB12

Juniper Networks JX-2T1-RJ48-S Dual-port T/E1 Physical Interface Module PIM

ZIATECH ZT88CT60-S328 NSPP ZT88CT60S328

Siemens 6ES7 212-1BA01-0XB0 6ES7212-1BA01-0XB0

SIEMENS OP25 OP25/A 6AV3 525-1EA01-0AX0

PLC DIRECT D4-DCM

Schneider Modicon AS-B864-001/ASB864001

Schneider Modicon AS-584A-330 USPP AS584A330

Schneider Modicon AS-M780-032 USPP ASM78003 Memory Cartridge

Schneider Modicon AS-9492-001 USPP AS9492001

Schneider Modicon 984 Series 7 Slot Chassis AS-H819-007 surplus

Schneider Modicon /MODICON TSX COMPACT DTA 202/AS-HDTA-202 -

Siemens Texas Instruments U-05N Input Module U05N

Telemecanique Digital Operator Panel VL 1006366598

SIEMENS SIMATIC S7 SM332 ANALOG OUTPUT MODULE AO4 X 16 BIT 6ES7-332-7ND02-0AB0

SIEMENS 3SB02-P3G NSFP 3SB02P3G

SIEMENS SINUMERIK 840D/840Di/810D CYCLES AND PROGRAMMING GUIDE MANUAL NE

BOSCH/REXROTH/INDRAMAT RMK12.2-IBS-BKL RECO COMMUNICATION MODULE

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 [1]

SIEMENS PCB 6FC5357-0BA20-0AE0 GWE-570038962000 Nice

Advantech PCA-6741 PCA-6741L Card

Allen-Bradley 2711P-T7C4D8 Panelview Plus 6 6.5 Color Touchscreen

ABB 4" MAGNETIC FLOW METER 10DX43HCDE15P3B2DAA2132X3ABBC1 DIGITAL

ACCUTHERM THERMA CARE RA 090804

A4001-N ESD Target Set IEC 61000-4-2, 30dB Attenuator, SMA Cable

83402A, Agilent, Lightwave Source 300 kHz - 6 GHz, OPT 012, 6 MONTH

SIEMENS 6ES7-671-0CC01-0YX0 NSFP 6ES76710CC010YX1

ASEA BROWN BOVERI DSCA-125A USPP DSCA125A

APC SURT3000XLT USPP SURT3000XLT

MITSUBISHI A3-CPU NSPP A3CPU

INDRAMAT BTV20.2CA-64B-33C-D-FW USPP BTV202CA64B33CDF

ALLEN BRADLEY 2711-B6C1 USPP 2711B6C1

SIEMENS R15-02-256 USPP R1502256

Siemens 6ES5-415-7AB11 USPP 6ES54157AB11

SIEMENS 6ES5 464-8MA21 6ES54648MA21

SIEMENS 6ES5 705-0BB50 6ES57050BB50

Siemens PLC DIGITAL INPUT 6ES5 422-8MA11 6ES5422-8MA11

Siemens 6ES7 334-0CE00-0AA0 6ES7334-0CE00-0AA0 in Box

Siemens PLC EM232 EM 232 6ES7-232-0HB21-0XA0

PVDM3-128 CISCO 128-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE

HAI 81A00-3ZB ZIGBEE INTERFACE MODULE FOR HAI AND LUMINA CONTROLLERS

USB SERVER INTERFACE MODULE FOR

SIEMENS 6AV6545-0AG10-0AX0 MP270 Touchscreen Glass

Siemens LOGO 24L 6ED1053-1CA00-0BA0 6ED1 053-1CA00-0BA0

Netcom Panel-Tec PE 8000

Schneider Modicon Battery CELL MA-0147-002 FOR AS-5378-002 PACK

Schneider Modicon AS-500P-000 P190 PROCESSOR BOARD

Schneider Modicon AS-E785-914 Memory Module Lot of 2

Schneider Modicon GOULD AS-M680-116 MODULE MEMORY EXECUTIVE CARTRIDGE ASSEMBLY 16K NNB

Schneider Modicon AS-B820-008

Schneider Modicon P933 POWER SUPPLY AS-P933-000

Schneider/Modicon TM2DDO32TK TM2DD032TK

Schneider Power Meter PowerLogic PM810MG

SiemensPanel6AV6640-0BA11-0AX06AV640BA110AX0

SIEMENS 6AV6545-5BC00-0CD0 OPERATOR INTERFACE PANEL

SIEMENS Simadyn D SP9 6DD1683-0BE0 6DD16830BE0 in Original box

GE FANUC IC693CMM311N COMMUNICATION MODULE

SIEMENS SIMODRIVE POWER MODULE 6SN1123-1AA00-0CA2 --

SIEMENS Sinumerik 6FC5203-0AF00-0AA0 Operator Panel

SIEMENS MOORE 16147-51-1 ACM ADVANCED CONTROL MODULE TRANSITION 41312

ALLEN-BRADLEY P/N: 1492-CB3

A-B 20BE022A0AYNAND0 POWERFLEX 700 DRIVE 20HP TESTED

ABS Pumps AFP 1541.2 M105/40 14hp 575v 3ph 1750rpm Submersible Pump - Refurb'd

A06B-0356-B755 FANUC SERVO MOTORS REMANUFACTURED

75 HP ELECTRIC MOTOR 3600 RPM 365TS

RELIANCE ELECTRIC 801429-SC USPP 801429SC

ALLEN BRADLEY 2711-T10C8 USPP 2711T10C8

ALLEN BRADLEY 1771-NIVR USPP 1771NIVR

HONEYWELL 51401291-100 USPP 51401291100

WESTINGHOUSE WHUN31 USPP WHUN31

TOTAL CONTROL PRODUCTS CRTXXXXXM1A USPP CRTXXXXXM1A

GETTYS A3110-001 USPP A3110001

Siemens 6ES5-234-1AD11 USPP 6ES52341AD11

SIEMENS 6ES5 375-0LD31 6ES53750LD31

SIEMENS BOARD 6ES5-400-0AA11 6ES5 400 0AA11 6ES54000AA11 SPCB463 SIEMEN

Siemens 6ES5 951-7NB13 Power Supply 6ES59517NB13 6ES5

Siemens 6ES5246-4UA41 ping Worldwide

Siemens MOBILE PANEL 177PN 6AV6645-0BA01-0AX0 99%

RELIANCE ELECTRIC 57416-S REMOTE I/O COMMUNICATIONS MODULE 57C416

Texas Instruments 500-5011

Spirent Adtech AX/4000 DS3 Interface pn 400302

Verifone Vx570 Dial 6meg PCI DSS Credit Card Terminal

SIEMENS C98043-A7001-L1

Modicon AS-W606-012

Schneider Modicon AUTOMATION AS WBXT 201

Schneider Modicon AS-B804-016 Output Module -NO BOX

Schneider Modicon AS-BDAP-211 NSFP ASBDAP211

Schneider Modicon AS-B875-002

Schneider Modicon Thermocouple Input Part AS-B883-200

Schneider Modicon B375 ANALOG INPUT MODULE AS-B375-001

Schneider MODICON AS-BADU-206

Schrack Seconet BX-AIM Germany Input Module EG072947-A\00

RELEASE SuperMicro X9DRD-IF Motherboard FULL MFR

SIEMENS 6ES5-470-8MB11/6ES5470-8MB11 OUTPUT MODULE NIB

SIEMENS SINUMERIK 880 6FX1121-2BA03 6FX11212BA03

Modicon / AEG Communication Processor Module AS-C921-101

SIEMENS Simodrive 611 E/R 6SN1146-1BB02-0CANIB

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

SIEMENS CAT Caterpillar D6H & LGP II PARTS MANUAL CATALOG TRACTOR BULLDOZER 4RC 6FC 3306

AllenBradley1756-OB16EDigitalOutputModuleControlLogix

ALLEN BRADLEY SLC 500 OUTPUT MODULE 1746-OB8 SER A

ABB Robot IRB 6400R 2.5 / 150 - Control system S4C M99

A06B-0142-B084 FANUC SERVO MOTORS REMANUFACTURED

0.250" x 25" Vamco Servo Feeder Model: CFS-30II S/N: HDC42530PVPCL13

MODICON MM-PM21-200 USPP MMPM21200

ALLEN BRADLEY 150-A240NCDB USPP 150A240NCDB

ADEPT TECH 30332-12350 USPP 3033212350

GE FANUC IC752WTA055-GC USPP IC752WTA055GC

SOLA ELECTRIC 056-00300-0000-09 USPP 05600300000009

SIEMENS 6ES7-806-0CC00-0YE0 NSFP 6ES78060CC000YE0

ALLEN BRADLEY 8000-MB2Z USPP 8000MB2Z

Siemens 6ES5 941-7UB11 6ES59417UB11

Siemens Simatic Hi Speed Counter Module 6ES5-491-0LB11IP242A 6ES5-242-1AA32

SIEMENS 6ES5-521-8MA22 SERIAL INTERFACE MODULE 6ES55218MA22

Siemens 6ES5 445-3AA11 Output Module 6ES54453AA11

Siemens 315-2DP 6ES7 315-2AG10-0AA0

Siemens ET200 Output 6ES7 132-4BB01-0AB0 6ES7132-4BB01

SCE2020-4XGBE-MM Cisco Service Control Engine 2020 Network monitoring device

Square D 9065-TF22

SIEMENS ASI BLOCK 3RK1400-1DQ00-0AA3 AS-INTERFACE COMPACT MODULE K60 BRAND

WE SHIP SAME Cisco CP-7937G Unified IP Conference Station 7937 C

SIEMENS 6SE6400-0EN00-0AA0 ENCODER MODULE

Siemens TP27-6 6AV3627-1NK00-0AX0 Touchscreen Glass

Schneider Modicon TSX COMPACT 24VDC 0.5A OUTPUT MODULE AS-BDAP-216N 3

Schneider Modicon ASBDAO216 16 Pt 24VDC Output AS-BDAO-216

Schneider Modicon AS-B827-032 MODULE ASB827032

Schneider Modicon AS-B829-116 MODULE ASB829116

Schneider Modicon AS-W804-002 USPP ASW804002

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

Schneider PLC Output Module TSXDSZ32R5 In Box

SIEMENS 6ES5-464-8ME11 ANALOG INPUT MODULE 6ES54648ME11

RSP720-3C-10GE Cisco Route Switch Processor 720 with 10 Gigabit EN upbs Rout

Siemens Coros OP5 6AV3 505-1FB12 Operator Panel OP5-A2 6AV3505-1FB12

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

Rivulet Communications NCU-PCI module

SIEMENS 6SN2-132-5KW11-1BA1 NSFP 6SN21325KW111BA1

SIEMENS 6RB2100-0NA01 Simodrive Analog Control Board

SIEMENS 6FC5111-0BA01-0AA0 Measuring Circuit Board

ALLENBRADLEY3055DATAMYTEOPERATORINTERFACE

Allen Bradley VersaView 1700P Interface Panel Catalog6181P-17NPXPH!

ABB EH 210 120V OUT OF

Advance HiVolt 1140-90129 OL330/253/07 Power Supply 0090-91806 Rev.A

(H7) 1 GE 44A399734-G01 PC BOARD H7

KMC CONTROLS KMD-5831 USPP KMD5831

ADEPT TECH 30336-31000 USPP 3033631000

FOXBORO D0148MP USPP D0148MP

FANUC A06B-0345-B331 USPP A06B0345B331

SICK OPTIC ELECTRONIC CLV-490-1010 NSPP CLV4901010

RELIANCE ELECTRIC 0-51865-14 NSFP 05186514

SABINA ELECTRIC 6801001 USPP 6801001

Siemens 6ES5 463-4UB12 ANALOG INPUT MODULE

Siemens 6ES5-928-3UB21 NSPP 6ES59283UB21

SIEMENS 6ES5-431-4UA12 NSFP 6ES54314UA12

Siemens 6ES5 523-3UA11 PROCESSOR MODULE CASING 6ES5 491-0LB11 6ES5523-3UA11

Siemens S5 6ES5 491-OLB11

Siemens BCM8001 80011000 Card

Siemens 6ES7 132-0BH01-0XB0 -FS- 6ES71320BH010XB0

Square D 8009 RT8

Norb Networks DS1404036-E5 8-Port 1 Gbps Gigabit Ethernet Interface Module

WS-CDC-2500W CATALYST 6500/7600 2500W DC POWER SUPPLY

SIEMENS 6ES7212-1BB21-0XB0 CPU 222

SIEMENS SIJECT OP15B Membrane Keypad

Reliance 57516

Schneider Modicon Gould AS-B230-501 Output Module ASB230501

Schneider Modicon AS-B356-000 USPP ASB356000

Schneider Modicon AS-S908-120 USPP ASS908120

Schneider Modicon AS-B885-111/ASB885111 Motion Module CLEAN OFFERS ACCEPTED

Schneider Modicon AS-B807-132 ASB807132 32 Point 120VAC Input NIB

Modicon AS-B872-002 Analog Output Module 60 DAY WARRANTY

SIEMENS INPUT MODULE PLC EM221 4-10mA 6ES7-221-1BF00-0XA0 6ES7221-1BF00-0XA0

Siemens 6ES5 441-4UA11 6ES54414UA11

SIEMENS PC-GF20 USPP PCGF20

SIEMENS NCU-BOX 6FC5247-0AA00-0AA2 SINUMERIK 840D/DE

Transcom SSP-1240 4-W Repeater RPTR w/DX Communications module

SIEMENS 6SN1118-0DG23-0AA1 | 12mo warranty | Free EU Shipping | Inc UK VAT

SIEMENS SIMODRIVE 611 6SN1111-0AA01-1AA0

SIEMENS 6FC5410-0AY03-1AA0 CPU810D CCV3.4 Free Ship

Advantech PCL-745 Rev.a2 Isolated RS-422/485

ALLEN-BRADLEY 1769-OB32 COMPACT I/O 32 PT. SOURCING OUTPUT MODULE IN BOX

ABB BAILEY IMASI23 SYMPHONY DIGITAL ANALOG SLAVE INPUT MODULE CONTROL B202649

Adept SIO/IDE Hard Drive Board 10332-22000