DCS（集散控制系统，Distributed Control System）

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哈喽大家好，在上一期中我们讲述了PLC可编程控制器详解，那咱们这一期中小编就详细给大家介绍一下DCS详细介绍以及优缺点等，请看下文：

DCS（集散控制系统，Distributed Control System）是一种在工业自动化领域广泛应用的控制系统，它以微处理器为基础，综合了计算机、通信、显示和控制等4C技术，实现了对生产过程的集中监视、分散控制和分级管理。以下是对DCS集散式控制系统的详细解析：

一、基本定义

DCS是分布式控制系统的英文缩写，在国内自控行业又称之为集散控制系统。它相对于集中式控制系统而言，是一种新型计算机控制系统，通过通信网络将各个控制单元连接在一起，实现对生产过程的分散控制和集中管理。

二、发展历程

DCS系统自上世纪70年代中期诞生以来，已经经历了三个主要的发展阶段：

第一阶段：以微处理器为基础的控制单元实现了分散控制，并通过CRT显示器实现集中监视和操作。这一时期的DCS系统性能还不十分完善，但已经具备了基本的分散控制和集中管理的功能。

第二阶段：随着微处理器位数的提高和CRT显示器分辨率的提升，DCS系统的硬件性能得到了显著提升。同时，模块化系统的强化和系统信息管理功能的加强，使得DCS系统更加可靠和灵活。

第三阶段：DCS系统引入了开放系统管理、实时多用户多任务的操作系统等先进技术，进一步提升了系统的性能和可扩展性。这一阶段的DCS系统已经能够实现多种生产经营信息的自动化管理，成为过程工业自动控制的主流。

三、主要特点

1、分散控制：DCS系统将控制功能分散到各个微处理器中，实现了对生产过程的分散控制。这种分散控制的方式提高了系统的可靠性和灵活性，即使某个微处理器出现故障，也不会影响整个系统的运行。

2、集中操作：虽然控制功能是分散的，但DCS系统通过通信网络将各个微处理器连接在一起，实现了对生产过程的集中操作和管理。这使得操作人员可以方便地对整个生产过程进行监控和操作，提高了工作效率。

3、分级管理：DCS系统通过形成多级控制结构（如过程控制级、集中监控级和生产管理级），实现了对生产过程的分级管理。这种管理方式使得系统更加灵活和高效，可以根据不同的生产需求进行灵活的配置和调整。

4、高可靠性和安全性：DCS系统采用冗余设计、故障诊断和恢复等多种可靠性措施，确保了系统的稳定性和可靠性。同时，系统支持热备份和冗余设计等功能，能够在设备出现故障时自动切换到备用设备或备份系统继续运行。

5、开放性和可扩展性：DCS系统采用开放式的系统架构和标准化的通信协议，使得系统具有良好的开放性和可扩展性。用户可以根据需要选择不同的硬件和软件设备，实现系统的灵活配置和扩展。

四、组成部分

DCS系统一般由以下几个部分组成：

1、现场控制级：又称数据采集装置，主要负责将过程非控变量进行数据采集和预处理，并将采集到的数据传输到监控计算机。同时，输出装置在有上位机的情况下，能以开关量或者模拟量信号的方式向终端元件输出计算机控制命令。

2、过程控制级：又称现场控制单元或基本控制器，是DCS系统中的核心部分。它接受现场控制级传来的信号，按照工艺要求进行控制规律运算，然后将结果作为控制信号发给现场控制级的设备。

3、操作员站：是操作人员与DCS系统交换信息的平台。操作人员通过操作员站来监视和控制生产过程，可以通过屏幕了解到生产运行情况并调整控制参数。

4、经营管理级（可选）：又称上位机或管理级计算机，功能强、速度快、容量大。通过专门的通信接口与高速数据通路相连，综合监视系统各单元并管理全系统的所有信息。这一级别主要面向行政管理或运行管理人员，提供全局性的监控和管理功能。

五、应用场景

DCS系统以其独特的分散控制、集中操作、分级管理的特点在工业自动化领域发挥着重要的作用。它广泛应用于化工、石油、水处理、发电厂、冶金等多个行业，实现对整个工艺过程的监测、控制和管理。

六、优缺点

优点

◆功能丰富：集成了多种技术，功能强大且全面。

◆高可靠性：采用冗余设计和容错技术，确保系统稳定可靠。

◆易于扩展和维护：模块化设计使得系统易于扩展和配置；自诊断功能降低了维护难度和成本。

◆友好的人机界面：提供直观、易用的人机界面方便操作人员进行监控和管理。

缺点

◆成本较高：集成了多种先进技术和设备导致初始投资成本较高。

◆对通信网络依赖较大：通信网络的质量和稳定性对系统正常运行至关重要。

◆维护复杂：复杂的系统结构和高度集成的技术增加了维护的难度和复杂性。

◆技术更新快：需要不断投入资金进行技术升级和设备更新以保持系统先进性。

    以上就是DCS（集散控制系统，Distributed Control System）的详细解说啦，包括优缺点、发展历程背景和主要特点等，大家还有什么不懂的呢？都可以在后台私信小编哦！每期会抽出后台中的问题来进行解答哦，我们敬请期待下一期是哪位幸运小可爱呢，大家下期见！

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BENTLY NEVADA 72301-03-04-01 BOARD

BENTLY NEVADA 78432-02 PC BOARD

BENTLY NEVADA 841 42-01 REKEY BOARD

BEP 3007327 CIRCUIT BOARD - REFURBISHED - !!!

Bernecker & Rainer B&R MDEXE3-0 Rev. 11.00 Circuit Board PCB MDEXE30 _ EXE-8

Beta LaserMike 192/182 Scanner Input Card Controller 83674 182-00422 Rev B

BETA RAVEN 4595-09 CIRCUIT BOARD

BETA TECH BC-FSC-050 I/O MODULE BOARD - !!!

Beta Tech BF-DSPY-011-001 Display Moduale Circuit Board

Beta Tech Inc BE-BBOX-012 BEBBOX012 Circuit Board Card 082297022

Beta Tech PC Board B4-INTF-010 Circuit Board Card B4-INTF-010001

BHP 037276 Board

BHP 037278 Board

BHP 037279 Torque Control Board

BHP 037280 Board

BHP 037281 Board

BHP 037404 Sensor Board

BHP 038141 PCB Assy Board

BHP 038148 PCS Front Panel Display Assy Board

BHP 038333 Picture Servo Board

BHP 038333 Picture servo drive Board

BHP 038532 Board

BIELOMATIK 03032/1 CIRCUIT BOARD CARD

BINDICATOR BREAKDATA 2200 BOARD PCB SERIAL NO.B10219

BIRTCHER 42-5VI-10-B3D-LFLNM2 WEDGE-LOK CARD GUIDE - BRAND ! !!!

BKG PL 620 MICROPROCESADOR PRINCIPAL BOARD PL620

BKG PL 620 MICROPROCESSEUR MAIN BOARD PL620

BKG PL 620 MICROPROCESSOR MAIN BOARD PL620

BLACK BOX 19" SLIDING PIVOTING KEYBOARD TRAY W/ SIDE MO TRAY RMT385

BLACK BOX MULTIPORTOCOL PCI CARD LP IC187C 7201R REV H

BOARD 00-108-699 0018

Board 056375 Circuit Board 9425-026

BOARD 602402-105

BOARD ASSEMBLY 1021333-102

BOARD B341E110339 B325E110323 NE 3196 M5 94 V0

BOBST 704-1107-04 CONTROL INTERFACE BOARD

Bosch 0 811 405 120 WV60-RGC2 Amplifier Card 0811405120 Top Zustand

BOSCH 043517-107401 BOARD INTERFACE - REFURBISHED -

BOSCH 0-811-405-028 AMPLIFIER CARD

Bosch 0811405060 PL6 Amplifier Card Verst?rker Karte Top Zustand

BOSCH 0811-405-063 PC BOARD DRIVE CARD

Bosch 0811405096 Amplifier Card PV45 0-811-405-096

Bosch Circuit Board 033093-1037 _ 0330931037 _ O33O93-1O37 _ 033092-104401

Bosch Circuit Board 043636-1017 _ 046361017 _ O436360-1O17

BOSCH CONTROL CARD 0 811 405 074

Bosch Module AG/Z-S 064720-1017 0647201017 Circuit Board

Bosch Module BM-DP12 Circuit Board 075888-2017 BMDP12 0758882017

Bosch Power Supply Board? D-64711 DCIO 1/MK Board Number 077003-101 7

Bosch Power Supply Board? D-64711 DCIO 1/MK Board Number 077003-102 7

Boston Digital Circuit Board PCB 15C550 _ PCB15C550 _ 15C551-019

Boston Digital Circuit Board PCB 15C551-277_15C551277_15C551

BOSTON DIGITAL Component Side Servo CPU Board_ PCB 14C125 REV A_ASSY 14C126

Boston Digital Control Panel Interface PCB 15C916_ASSY 14D858

Boston Digital Corp Encoder Circuit Board PCB 14C148_PCB14C148_ASSY 14C149

Boston Digital Corp Encoder Connector Circuit Board PCB 15C620_PCB15C620

Brady WM-21 Wire Marker Label Cards Number 21 Boxes of 25  5

Brake Master Cylinder-Master Cylinder Cardone 10-1423 Reman

Brake Master Cylinder-Master Cylinder Cardone 10-1584 Reman

Brake Master Cylinder-Master Cylinder Cardone 10-1676 Reman

Brake Master Cylinder-Master Cylinder Cardone 10-2007 Reman

Brake Master Cylinder-Master Cylinder Cardone 10-2446 Reman

BRANSON 100-242-047 CIRCUIT BOARD

Bridgeport AXSBOB Circuit Board PCB Module 1942755, No Rev

Bridgeport AXSBOB Circuit Board PCB Module 31944108 Rev. C

Bridgeport Boss 8 EAF CNC PCB Circuit Board 1934724 _ 194

Bridgeport Boss Controls Circuit Board 027015 _ A027015 _ O27O15

Bridgeport Circuit Board - FPU Board 1937431 _ Part No. 1937430 Rev. B

Bridgeport Circuit Board 1942616 Rev B PCB

Bridgeport Circuit Board 360 273 0195 _ 3602730195 _ 824M

Bridgeport Circuit Board 4679107 _ 46791O7

Bridgeport Circuit Board A026974 B/L 3 _ CNC Mill Boss Controls _ AO26974 PCB

Bridgeport Circuit Board A026974 B/L 4 _ CNC Mill Boss Controls _ AO26974 PCB

Bridgeport CNC Boss PCB Circuit Board A018542 SMD _ AO18542 _ 018399-B

Bridgeport CNC Boss PCB Circuit Board A025115 VCC RSI _ AO25115

Bridgeport CNC Boss PCB Circuit Board A025118 BCC VCC _ AO25118

Bridgeport CNC Circuit Board BCI C1936971 _ 1936969

Bridgeport CNC Mill Boss Controls RCK Board 2926865 _ BJMR-554V-1 40.0_026863-B

Bridgeport CNC Mill Circuit Board 1936004 Rev C FMDC Card 1939523 _ 1936OO4

Bridgeport CNC PC Board BCC Boss 2925118 _ 023600 _ 3190-2BCC _ 31902BCC

Bridgeport Controls 018399-B Circuit Board PCB 018399B

Bridgeport Controls 027015 Circuit Board PCB

Bridgeport Controls A-023382 Circuit Board CNC PLC Mill

Bridgeport Controls ABL-023385 A 1923386 Circuit Board PC CNC Mill

Bridgeport Controls Circuit Board 29 268 65 29 268 65

Bridgeport Controls ERS Card A027990 Circuit Board PCB

Bridgeport FPS Card _ Board 024063-B _ 024063B _ P/N: 1924086 _ 31924086

Bridgeport Heidenhain Relay Board 4679107 Type E _ 46791O7

Bridgeport PWMINT Circuit Board PCB Module 31943304 Rev. C

Bridgeport Textron BCI Circuit Board 1936969 _ C1936971 Rev F

Bridgeport Textron BSP-2 Circuit Board 1936739 Rev C _ A0638482

Bridgeport Textron Circuit Board 1936479 Rev A _ 193647Q4

Bridgeport Textron Circuit Board 1937308 _ 19373O8

Bridgeport Textron Circuit Board 1937997 _ 1936628 _ 1936478

Bridgeport Textron Circuit Board 1938000 _ 1938OOO _ 1937862 _ 1937784

Bridgeport Textron Control Panel with Circuit Board 1938374 Rev B _ 1938372

Bridgeport Textron DMB Base Board 1937794 _PCB Circuit Motherboard 1937411 Rev C

Bridgeport Textron EAF Circuit Board PCB 1934628 Rev H

Bridgeport Textron EZIO Circuit Board 1937308 _ 19373O8 _ 1937306 Rev 0 PCB

Bridgeport Textron FBP Circuit Board 1937438 _ 193743 Rev B _ 1935082 Rev O

Bridgeport VMC 760 Circuit Board 4689770 PCB Issue DCB _ 468977O

BRISTOL 392927-01-2 PC BOARD

BRISTOL ST16C650IJ PC BOARD

BROADATA 4600E-TX-S-SC-CC-HD15 HIGH RES FIBER OPTIC RGB VIDEO TRANSMISSION CARD

BROADCOM BCM95708ST0805 CIRCUIT BOARD ADAPTER -  -

BROCADE 75878-0052 MX 11272Z BOARD NI-MLX-10GX8-D 8-PORT EXPANSION MODULE

BROTHER B521127-5_B5211275 TAPPING CENTER CIRCUIT BOARD PCP

BROTHER B521138-2 PCB Communication Circuit BOARD _ Brother TC-228 CNC Drill Tap

BROTHER B52J027-3 CNC Circuit BOARD _ Brother TC-228 CNC Drill Tap

Brother Circuit Board A1 AI AM-1 0001020A _ B/N: 521097-5 _ 5210975

Brother Circuit Board AI AM-1 _ AIAM1 _ B521098-6 _ B5210986 _ 9811007B

Brother Circuit Board B521047-6 _ B5210476_ Brother CNC Tapping Center TC-221

Brother Circuit Board B521049-6 _ B5210496_ Brother CNC Tapping Center TC-221

Brother Circuit Board B521067-3_B5210673_B521049-6_B5210496_B521124-1_B5211241

Brother Circuit Board B521068-1 _ B5210681 _ Brother CNC Tapping Center TC-221

Brother Circuit Board PCB_B52J052-2_B52J052-200_94219

Brother Circuit Board PCB_JCI-D1S_JCID1S_B521084-1_B5210841

Brother Control Circuit Board PCB_B52J026-2_B52J0262_94219

Brother Control Circuit Board PCB_B52J052-2_B52J062_94219

BROTHER Monitor CRT Panel Main Board 8521048-4 JCI-D1S

Brother Relay Board B521035-3 _ B5210353 Circuit Board

BROTHER TC-221 CNC TAPPING CENTER B521033-2 B5210332 JCI-D1S CIRCUIT BOARD

Brother TC-225 Relay Board B521078 2 _ B5210782 _ JCI-DIS _ 8711015AA _ JCI-D1S

Brother_TC-323_Circuit Board PCB_B52J025-1_B52J0251

Brown and Sharpe Circuit Board 80-106 Rev. A _ 80106 _ 80-1O6 _ 80-120 _ 80-187

Brown Boveri W981F84H001 Circuit Board Rev C Fire Alarm

Brown Boveri W981F84H009 Rev A Circuit Board W981F72H021

BRYANT 2K2329 PC BOARD

BRYANT 2K2345 PC BOARD

BRYANT 2K9122 CIRCUIT BOARD 2K2330

BRYANT 2K9124 PC BOARD

BRYANT 2K9129 PC BOARD

BRYANT 2K9139 CIRCUIT BOARD

BRYANT 2K9142 PC BOARD

BRYANT 2K9156 PC BOARD

BRYANT 2K9182 PC BOARD

BRYANT 2K9189 PC BOARD

BRYANT 2K9191 PC BOARD

Bryant Grinder PCB CNC Circuit Board 2K9126 ___ 2K 9126

Bryant Grinder PCB Printed CNC Circuit Board 2K9139-2 _ 2K91392

Bryant Timing Board AC600, AC6OO, Rev B

Brytron Ltd. J10008M Electronic Printed Circuit Board

BUG1 3Z2K0471-1 SR7BUG1-G1 2N2K2560-A00 Card Board Module

BURFORD BOARD FABC01257 REV.E W/ C01410 REV. C

BURFORD CORP. AUXILIARY BOARD ASSEMBLY FABC01267 REV. D

BURFORD PC BOARD FABC01267 REV. D W/ C01410 REV. C

Burr-Brown TM8701 Micro Terminal with Card Reader

Burroughs Corp Circuit Board 25582115 Rev 045B _ BDS40832 _ BDS4O832

BURTON 513-716-000 DRIVE CIRCUIT BOARD 413-144-000

BURTON INDUSTRIES 513-149 PC BOARD DRIVE OPTION 413-019

ByStronic E0569-5-A Circuit Control PC Board From BL1500DC

ByStronic E0583-5-A Circuit Control PC Board From BL1500DC

BYSTRONIC E0790-5-A PRINT ROM/RAM 3 BOARD, BYSTRONIC PRINT E07905A

BYSTRONIC E715-5-C BOARD POSCON Var 01

BYSTRONIC E715-5-C BOARD POSCON Var 01 XY

C79451A3278B101 THERMOSTAT HEATING BOARD

Cadet 6F1500 72" electric baseboard heater 1500 watt 240/208V 5120/3840 BTUS

CAE ELECTRONICS MA1075015-01 CIRCUIT BOARD

CAE ELECTRONICS MA133719012268 CIRCUIT BOARD

CAE ELECTRONICS MA8672002268 CIRCUIT BOARD

CAL Controls 39793 Iss. 1 CALogix Backplane Board

Cardinal 8B 8" Quick Acting Heavy Duty Drill Press Speed Vise USA

Cardinal Detecto PCS-200 Price Computing Scale Display Keyboard 0-150LBS 115VAC

CARDKEY DST-SI pn 11-0850-01 .5 amp 115 V 31-1152-01(2) with 2 transformers

Cardkey STI-E/LC1 Smart Terminal Interface w/Cardkey 36-1717-01 REV-C Board

CARDONE 18-4328H BRAKE CALIPER

CARRIER CEPL130259-01 PCB-05 CEPP130173-04-04-01 Integrated Starter Module

CARRIER HK42FZ015 CONTROL CIRCUIT BOARD

Cat Caterpillar 215B-LC Excavator Vintage Microfiche Parts Catalog 10 Cards

Cat Caterpillar 315.315L Excavator Vintage Microfiche Parts Catalog 3 Cards

Cat Caterpillar 416 Backhoe Loader Vintage Microfiche Parts Catalog 10 Cards

Cat Caterpillar 416B Backhoe Loader Vintage Microfiche Parts Catalog 5 Cards

Cat Caterpillar 416C Backhoe Loader Vintage Microfiche Parts Catalog 9 Cards

Cat Caterpillar 428B Backhoe Loader Vintage Microfiche Parts Catalog 6 Cards

Cat Caterpillar 5130 Excavator Vintage Microfiche Parts Catalog 10 Cards

Cat Caterpillar 910 Wheel Loader Vintage Microfiche Catalog 10 Card Set Rare

Cat Caterpillar 916 Wheel loader Vintage Microfiche Catalog 5 Card Set Rare

Cat Caterpillar D5H Track Skidder Vintage Microfiche Parts Catalog 3 Cards

Cat Caterpillar E120 &E120B Excavator Vintage Microfiche Parts Catalog 6 Cards

Caterpillar 933 & 931 LGP Traxcavator Vintage Microfiche Parts Catalog 7 Cards

Caterpillar IT12F IT12B & IT12 Intergrated Toolcarrier Microfiche Catalog 9 Card

Caterpillar IT14F & IT 14B Intergrated Toolcarrier Microfiche Catalog 5 Cards

CCI-1-0 CONTROL BOARD PN 184249B

CENTRAL DATA CORP. CD21/3038 CIRCUIT BOARD

Cerberus Pyrotronics CSM-4 Circuit Board 580-190142-14

Cerberus Pyrotronics CSM-4 Circuit Board 580-190142-4 Fire Alarm

CERBERUS PYROTRONICS KELLER'S K-500 CIRCUIT BOARD FIRE ALARM

CERBERUS PYROTRONICS PM-32 PROGRAM MATRIX MODULE CIRCUIT BOARD

CERBERUS PYROTRONICS PS-5A POWER SUPPLY CIRCUIT BOARD

CERBERUS PYROTRONICS ZN-34U LOGIC MODULE FIRE ALARM CIRCUIT BOARD CARD

CERUTTI RE 52206 BOARD

CH FDPW FDPW367 800 AMP 600V FUSIBLE F PANEL PANELBOARD SWITCH fdpw327 240v

CH FDPWT FDPWT3223R 60 100 AMP 240V FUSIBLE PANEL PANELBOARD SWITCH SER C

CH WEST FDPWT FDPWT3644J 200 AMP 600V F PANELBOARD SWITCH fdpwt3244j 240v

CH WESTINGHO FDP FDP325R 400 AMP 240V F PANELBOARD SWITCH HARDWARE fdp365r

CH WESTINGHO FDPS FDPS368 1200 AMP 600V F PANELBOARD SWITCH HARDWARE SER A

CHALLENGER FCSCT FCSCT3633R 100 AMP 600V PANELBOARD SWITCH fcsct3233r 240v

CHALLENGER QSF QSF20D 200 AMP 240V FUSIBLE PANELBOARD SWITCH QSF20 W/HARDWARE

CHARMILLES / FARNELL ROBOFORM EDM CIRCUIT BOARD N200T233/U

CHARMILLES Base Circuit Board PCB_812.115.0C_8121150C_812115OC

Charmilles Board PCB 812030 E_852025 A_813095 A_855212 Robocut 2 CNC EDM

Charmilles Circuit Board PCB 811020 D_852193 811 020 D Robocut 2 CNC EDM