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1 FF

2 PID FF Profibus I/O

3 FF EPC DCS FF D PFD/P&ID H1 / EPC FF FF C A B

4 D A C B FF FF FF FF DCS FF FF H1 FAT EPC DCS /FF 11 FAT DCS/FF FAT SAT

5 EPC FF DCS DCS DCS FF FF / / DCS / CPU / / I/O FF

6 EPC FF DCS FF FF FF FF I/O

7 EPC FF DCS FF FF 100% FAT FF FAT SAT

8 FF FF H1 FF DCS FF SIS 4-20mA HART FF AI LAS ITK DCS FF PID AO DI LAS ITK DCS PID DCS FF IEC61158 FF

9 FF H1 FF H1 Chicken Foot H1 FF FF FF FF FF 60mA FF FF H1 H1 FF 9 H1 FF 2

10 H1 1 H1 1 1 H H1 H1

11 H1 LAS H1 R LAS H1 FF FF DCS DCS 100% H1 FF FAT H1 12 FF H1 LAS DCS FAT FF 1200 FF 18#AWG 0.8m2 7

12 FF H1 FF FF UPS 20-35V.DC H1 24V.DC FF H1 FF FF H1 H1 24V.DC FF H1 H1 FF DCS FF H1 14V.DC

13 (Link Active Scheduler LAS)

14 FF PID FF AMS VALVELINK PC FF DCS/FCS FF

15 Delta V Valve Transmitter BKCAL_IN BKCAL_OUT FIELDVUE AI OUT IN OUT PID CAS_IN AO

16 -1 8 H1 Up to 8 H1 segments No spurs 1 H1 1 H1 segments HOST Junction Box Junction Box Homerun Homerun cable cable Up to 9 devices / H1 9 /H1 Multi-pair cable Single pair cable up to 8 pairs 8 Spurs Transmitter Valve etc

17 -2 1 H1 1 H1 segments HOST Junction Box Homerun cable Single pair cable Up to 9 devices / H1 9 /H1 Spurs Transmitter Valve etc

18 FF FF FF H1 R PID DCS H1 FF H1 H FF IEC FF FF 4-20mA DC AI/AO PID DCS

19 EPC DCS P&ID Segment FF HART FF HART

20 FF H1 ( Segment) Segment Segment Segment, PID Segment

21 H1 (Segment) Segment * 1000 ms ms ms -AI -AO -PID 100ms(max) 30ms 130ms(max) 60ms 160ms(max) 120ms H1 40ms(max)

22 FF (IEC ) 18AWG(A) % at khz K m (max) 22 / (max) 150pF/m mm (max) 3db at 39kHz 90% (+) (-) (+) (-),, 2

23 FF 8 FF /Segment FF = Trunk + Spur 500m 8 x 40m = 320m 500m + 320m = 820m FF 44 /km FF 14V.DC FF 30mA FF 8 /Segment * FF * FF - 30mA x 8 = 240mA (max) -FF - 60mA 0.3A x 44 /km x 0.5 = 6.6V - 240mA + 60mA = 300mA - FF 0.03A x 44 /km x 0.04 = V

24 H1 (R) 25V-6.6V=18.4V DC FJB PSC Trunk 500m 300 ma 24V.DC 40m 18.4V V= V 30mA 350mA 25V DC FT PT CV 1* 2* 8* * 120m 18.4V - (120/40) X V = V

25 FF VCR-Virtual Communication Relationships FF VCR - / Publisher/Subscriber VCR - Report Distribution VCR - / Client/Server VCR Segment VCR VCR * AI / PID AO VCR AI / PID AO * AI /DCS PID / AO DCS VCR VCR / PID / VCR AI / AO * AI PID / AO VCR / AI PID / AO VCR

26 FF * + - > 50k + - > 200M * + - > 1 F F + - > 300 F * V.DC * FF AC AC200mV/ 10 s/

27 FF * * * * DCS *

28 FF FF DD DCS H1 FF FF FF FF H1 H1 DCS control studio, DCS

29 DCS DCS down load DCS DSC idle time >50% DCS

30 SECCO EMERSON / VORTEX PH

31 SECCO DCS/SIS I/O AI AO DI DO Serial I/O Total I/O No of segment DCS SIS

32 SECCO Segment/FF FF Segments FF No/Segment * /Segment % *1 /Segment % *2 /Segment %

33 Segment Validation Summary Number of instrument in the Segment Voltage at instrument Total cable length Total current consumption Total capacitance Assigned instrument that has not spur connected to the trunk Number of terminators Number of devices per spur Maximum spur cable length

Microsoft Word - DCS系统的实践应用与工作经验

Microsoft Word - DCS系统的实践应用与工作经验 DCS 系统的实践应用与工作经验北京远东仪表有限公司张洪垠摘要 : 本文着重介绍了有关 DCS 系统的选型配置使用与考核等方面要求, 作者介绍了多年从事 DCS 的工作实践体会和感受, 可作为从事 DCS 系统方面工作的有关人员参考关