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What's DCS?

What's DCS?

DCS кǺẺШ Ҩҡ Distributed Control System DCS ӻСͺ仴ѡ ǹǺ 觤¡Ѻ PLC ˭դö٧ 駡äǺẺ Batch, Sequencial , Analog Control Advance Contol ǹԴͼ 觤 Ѻ Scada ֧ǹ纻ѵ History

ͧҡкǺá 鹨 Relay 繵ǤǺк Ѳ PLC ҷ¹ͧ PLC շ 5  Ladder (LD), Instruction List (IL), Sequence Function Chart (SFC), Structure Text (ST)  Function Block Diagram (FBD) ҡͧ operate ҹ graphic PLC 鹨еͧ͡Ѻػó MMI (Man Machine Interface) ͺҧ¡ HMI (Human Machine Interface) 㹵 PLC ǹ˭ built-in · HMI öʴʶҹеҧ ͧ process ö Operate HMI ǷͧʴӤѭ Historical Report, Alarm Message, Trend

DCS кѲѧҡ PLC ¨ҷ¹ᵡҧѹ Ѻ ѧվ鹰ҹͧ PLC logic ҹԧкǺ˭ process ͹ҧ ( process oil and gas) դʶҡ DCS ա Graphic ,Trend ,Historical, Alarm Message 㹵ͧ

ٻçҧ DCS á


ʶһѵ¡ DCS

ʶһѵ¡ DCS ͧԵкѷҨçҧҧѹ͡ẺͧԵкѷ DCS ͧԵءѷͧػóСͺ㹢ͧ DCS ʵ˹ҷûԺѵԧҹФѺԴͺ ˹ͧ (module) ػóСͺͧ DCS ͧԵ¨ժ¡ҧѹ DCS ͧСͺ˹ͧѡɳФ¤֧ѹѧ

1. ˹͡кǹ (process interface module) ػóԴҧ DCS ѺкǹüԵ ˹ҷ ѺѭҳѴҡкǹüԵѺ DCS ѭҳǺҡ DCS ѧкǹüԵ ˹͡кǹͧ鹢ͧ DCS Сͺ˹Ѻѭҳ͹͡ (analog input module) ˹ѭҳ͹͡ (analog output module) ˹ѺѭҳԨԵ (digital input module) ˹ѭҳԨԵ (digital output module)

2. ˹¤Ǻкǹ (process control module) ػóѡͧ DCS ѺǺкǹüԵ ѺŢͧкǹüԵҡ˹͡кǹͤӹdzҢͧѭҳǺ觡Ѻѧ˹͡кǹͤǺкǹüԵա˹˹͡кǹèеԴ͡Ѻ˹¤Ǻкǹ͢¤ǵӢͧ DCS äǺкǹüԵͧ鹢ͧ DCS Сͺ äǺẺԨԵµçСäǺẺԴдѺ

3. ˹µԴлԺѵԧҹͧѡҹ (operator interface module) ˹»Ժѵԡâͧǡ (engineerint workstation) ػóԴҧ DCS ѺдѺǡоѡҹ DCS Ҩ¡˹µԴлԺѵԡâͧѡҹǡػó 2 ش ػóشѹ˹ҷ˹µԴлԺѵԡâͧѡҹǡ ˹µԴлԺѵԡâͧѡҹ˹ҷػó׵Դ͡Ѻѡҹ͵ǨͺФǺкǹüԵ ˹»Ժѵԡâͧǡ÷˹ҷػó͵ҧ DCS ѺǡѺèѴçҧͧкǺͧкի á˹´ӴѺʴҾҿԡѺѡҹ 纺ѹ֡ʴѵԡкǹ Т͹˵ءóҧ ͧ DCS

4. ˹͢ (communication module) ػóѺػóءǹͧ DCS Ѻ͢¤Ҥ ˹ͧ͢鹢ͧ DCS §ػóǺкǹáѺػóԴлԺѵԡâͧѡҹ

5. ˹红лѵԡкǹ (process data and history module) ػóѺ红ѺäǺкǹüԵͧ DCS ТŻѵԢͧкǹ˹红лѵԡкǹâͧ DCS ѡԴѺ˹µԴлԺѵԡâͧѡҹǡ իҨ¡˹红лѵԡкǹػóػó͡Ѻ͢¤Ҥͧͧ ػó红ͧ鹢ͧ DCS Сͺػó红ŪԴҡ (magnetic disk) ෻ (magnetic tape)

6. ˹͡Ѻ͢¤ (computer network interface module) ػóҧ͢¢ͧ DCS Ѻ͢¢ͧѺǺккǺ DCS öԴ͡Ѻͧ¹͡кիػóͧ͢˹µԴлԺѵԡâͧѡҹǡ ͡Ѻ͢¢ͧ DCS µçػó͡Ѻ͢¤

7. ˹͡Ѻкͧ (subsystem interface module) ػóҧ DCS ͧкǺ¹͡к DCS ū ҫⵡҿ (gas chromatograph) ػóѺ觢 (remote input/output device) ͧ кǺ˹»żŢͧͧ DCS öԴ͡ѺͧкǺ¼ҹ͢¢ͧ˹͡кǹ͡Ѻ͢¤Ҥͧ DCS µç˹кͧǡѺ͡Ѻ͢¤к

8. ˹¨¡ѧ俿 (power supply module) ػó¡ѧ俿Ѻػóءǹͧ DCS ػó¡ѧ俿 ˹ҷӨѴѭҳúǹлѺдѺçѺѺػóҧ ͧի 纾ѧҹ俿ͧѺк DCS

 

õԴ DCS ǺкǹüԵçҹصˡ

¡Шµ˹觵ҧ çҹصкǺẺШ իԸաõԴͧ˹ҷͧͧкǺҧҡкǺẺٹҧ

ٻõԴ DCS ǺüԵçҹصˡ

 

äǺкüԵͧ DCS

ѺäǺкüԵ ѡҹö觧ҹ鹾͡ʴҾкǹüԵͧͷͧ觧ҹҾ᷹ûѺͧǺẺ  DCS ʴŢͧкǹüԵ¾ѡҹöǨͺкǹüԵͧ͵ҧ кǺҡҾͧիʴѧ

  1. кǹüԵ (Overview display)
  2. кǹ (Group display)
  3. ˹ͧ (Instrument display)
  4. кǹ (Trend display)
  5. Ҿͧ˵ءó (Graphic display)
  6. ѭҳ͹˵ءó (Alarm display)

 

ººҧʹТ¢ͧիʡѺкǺẺҧ

  • ͡ẺеԴкǺ

իʪŴФҧ͡ẺкǺСõԴͧѴФǺçҹصˡҡ ͡Ẻö͡իçѺͧТҴͧçҹصˡ çҹصˡҴҨԴ§ػóǺкǹüԵػóԴ¼ҹѭҳ͢¢ͧкǺ ѺçҹصˡҴ˭Ҩ͡ԴػóСͺҧӹǹҡ鹵

ٻõԴѭҳͧкǺẺҧçҹصˡ

çҹصˡѧͧѭҳӹǹҡҧҵѴʴкǺ իѭҳѧͧҡիö͡ԴҵѴͧѹ֡ѭҳͧ㹢ͧիͧѺʴ˹ҨҾ繵ͧԴͧʹѧǨԧкǺẺ

ٻͧ㹢ͧի

 

  • ͶФʹ㹡кǹüԵͧ DCS

кǺͧçҹصˡ͡ҡõԴ੾ͧͷդͶ٧ ͡ẺѧͧԨóҴҹʹСèӡѴ¢ͧкǹüԵҡغѵ˵ͤԴҴҧ㹢ͺࢵӡѴҡش

  1. кǺͧӡѴ¨ҡ˵ؤͧͤԴҴͧͧǧӡѴ
  2. кǺͧѴͧͤǺͧѺѡҹǺöԺѵ˹ҷǺкǹüԵ᷹ͧͤǺѡǹѺöԹԷѹ
  3. кǺͧѴкǺǩعԹѺѡҹǺö觡ش¡ԡкǹüԵҧǹͷѹ»ʹ·ء鹵͹
  4. кǺͧкǨͺͧѺǨͺ١ͧ㹡ûԺѵԧҹҧ

 

  • DCS öͶФʹ㹡ûԺѵԧҹǺкǹüԵͧçҹصˡ ѧ
  1. áШػóѺФǺкǹüԵͧ DCS 繡ͧӴѺ˹ҷѺԴͺ㹡õǨͺдšкǹüԵͧçҹصˡ ѹ Ͷͧ͢кǺҡ
  2. ѡТͧѺԺѵ˹ҷ᷹˹¤ǺкǹüԵͧ DCS ˹¤ԧԴ͹˹¤Өз˹ҷѡ
  3. õԴͧͤǺͧѺԺѵ˹ҷ᷹˹¤Ǻкǹ˹͡кǹǹشöӧҹ ͧͤǺз˹ҷ᷹
  4. кǨͺͧ DCS öǨͺûԺѵ˹ҷͧͧ͵ҧкǺеǨͺõԴ͡Ѻͧ蹷͡Ѻ DCS Թô¤١ͧʹ кõǨͺͧͧ DCS ѧ觡ͧͤǺͧͧ DCS ҶԺѵ˹ҷ᷹ͧͤǺѡǹشѹշǨͺ ԴԢͧͧ кǹüԵöԹ仴¤ºµͧʹ
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