描述
DCS它可以控制和监视工艺全过程，对自身进行诊断、维护和组态。但是，由于自身的致命弱点，其I/O信号采用传统的模拟量信号，因此，它无法在DCS工程师站上对现场仪表（含变送器、执行器等）进行远方诊断、维护和组态。FCS采用全数字化技术，数字智能现场装置发送多变量信息，而不仅仅是单变量信息，并且还具备检测信息差错的功能。FCS采用的是双向数字通信现场总线信号制。因此，它可以对现场装置（含变送器、执行机构等）进行远方诊断、维护和组态。FCS的这点优越性是DCS无法比拟的。
（6）FCS由于信息处理现场化，与DCS相比可以省去相当数量的隔离器、端子柜、I/O终端、I/O卡件、I/O文件及I/O柜，同时也节省了I/O装置及装置室的空间与占地面积。有专家认为可以省去60%。
（7）与（6）同样理由，FCS可以减少大量电缆与敷设电缆用的桥架等，同时也节省了设计、安装和维护费用。有专家认为可以节省66%。
对于（6）、（7）两点应补充说明的是，采用FCS系统，节省投资的效果是不用怀疑的，但是否如有的专家所说达60~66%。这些数字在多篇文章中出现，编者认为这是相互转摘的结果，目前还未找到这些数字的原始出处，因此，读者在引用这些数字时要慎重。
（8）FCS相对于DCS组态简单，由于结构、性能标准化，便于安装、运行、维护。
（9）用于过程控制的FCS设计开发要点。这一点并不作为与DCS的比较，只是说明用于过程控制或者说用于模拟连续过程类的FCS在设计开发中应重点考虑的问题。
1）要求总线本安防爆功能，而且是头等重要的。
2）基本监控如流量、料位、温度、压力等的变化是缓慢的，而且还有滞后效应，因此，节点监控并不需要快电子学的响应时间，但要求有复杂的模拟量处理能力。这一物理特征决定了系统基本上多采用主一从之间的集中轮询制，这在技术上是合理的，在经济上是有利的。
3）流量、料位、温度、压力等参数的测量，其物理原理是古典的，但传感器、变送器及控制器应向数字智能化发展。
4）作为针对连续过程类及其仪器仪表而开发的FCS，应侧重于低速总线H1的设计完善。
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主营DCS系统配件
机器人系统配件
大型伺服系统配件
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ALLEN-BRADLEY 1391B-AA45/D AC SERVO CONTROLLER
SIEMENS S7-300 SIMATIC PLC SYSTEM 315-2AF03-0AB0 CPU
SIEMENS 6ES5955-3LC42 POWER SUPPLY MODULE
TIMKEN M241549/M241510 TAPERED ROLLER BEARING,NEW
34 ALLEN-BRADLEY 800T SERIES PUSH BUTTONS,MIXED
NORDSON 8514893 HOT MELT GLUE GUN,NEW
BALDOR ZD18H203-E AC FLUX VECTOR DRIVE,3HP
SIEMENS 6SN1118-0AA11-0AA1 SINGLE AXIS DRIVE
3 GUHRING 23MM SOLID CARBIDE COOLANT DRILLS,TIN,NEW
TELESIS TMC420/TMP 1700 PINSTAMP & CONTROLLER
NEWALL 7B211000 DP7 DIGITAL READ-OUT,AXIS,SCALE
ALLEN-BRADLEY 2711-T6C2L1 PANELVIEW 600 OIP W/AIC+
30 ALLEN-BRADLEY PUSH-PULL START-STOP BUTTONS,PILOTS
RELIANCE ELECTRIC 0-51874-2 STATIC SEQUENCE CARD
ALLEN-BRADLEY 2711-K5A8 PANELVIEW 550 INTERFACE,NEW
BALDOR ZD18H430-EO VECTOR DRIVE,NEW
ANN ARBOR INX6TTPIII850-TFT INDUSTRIAL COMPUTER
FANUC A06B-6050-H104 VELOCITY CONTROL UNIT
ALLEN-BRADLEY 1394C-AM07 AC SERVO AXIS CONTROLLER,NEW
INDRAMAT HDS02.2-W040N-HS12-0 AC DIGITAL SERVO DRIVE
NEWALL 7B211000 DP7 DIGITAL READ-OUT,AXIS,SCALE
FANUC A06B-6058-H222 SERVO AMPLIFIER
SQUARE-D KA36200 200 AMP CIRCUIT BREAKER I-LINE
DART MD10P DC SPEED CONTROL DRIVE,W/PU-20E PICKUP,NEW
5 POUNDS KESTER 24-7068-9720 LEAD FREE SOLDER 1mm
SIEMENS 505-6851-A REMOTE BASE CONTROLLER,NEW
24 ALLEN-BRADLEY PILOT LIGHT PUSH-BUTTONS,KEYED,MIXED
5 WILSON/STRIPPIT 1-1/4″STYLE OBROUND PUNCHES & DIES,
ALLEN-BRADLEY 1785-V40B PLC-5 VME RIO CONTROLLER
ALLLEN-BRADLEY F-4050-Q-H04AA AC SERVO MOTOR,2.5 KW
ALLEN-BRADLEY F-4050-Q-H04AA AC SERVO MOTOR,2.5KW
ALLEN-BRADLEY 1394C-AM04 AC SERVO AXIS MODULE,3KW
ALLEN-BRADLEY 1756-A17 CONTROLLOGIX PLC RACK,17-SLOT
BALDOR DC ADJUSTABLE SPEED MOTOR DRIVE
3 WILSON TOOL 1-1/4″STYLE SQUARE PUNCHES & DIES
1 SET STI MS4324 SAFETY LIGHT CURTAINS,LCC CONTROLLER
40 3M 07526 SCOTCH-BRITE 3″ BRISTLE DISCS,50GRADE,ROLOC
1 SET FAFNIR 2MM9109WI-DUL SUPER-PRECISION BEARINGS
2 KENNAMETAL NSR-163D NL7 LATHE INSERT TOOL HOLDERS
2 HPI ER-32 COLLET CHUCKS,CAT-40,TOOL HOLDER
NORTON 5″x1-3/4″x1-1/4” CBN GRINDING WHEEL NEW
RELIANCE ELECTRIC S-4075-R-H00AA SERVO MOTOR
2 CUTLER-HAMMER ED3225 3-POLE CIRCUIT BREAKER,225 AMP
SQUARE-D Q2-32125 125 AMP CIRCUIT BREAKER I-LINE
KENNAMETAL? 11-5/8″X 1-1/2″ BORING BAR,A24UMCLNR4 NC7
WILSON .250″X4″ THICK TURRET RECTANGLE PUNCH & DIES
SQUARE-D AW-2 ELECTRONIC FOOT SWITCH,600VAC/DC,COVERE
BERGER LAHR RDM 51117/50 STEPPING MOTOR,NEW
4 BAUSCH & LOMB ILLUMINATORS & 31-35-28 TRANSFORMERS
2 REXROTH VT 3000 PROPORTIONAL VALVE AMPLIFIERS
EMERSON FX-6210 POSITIONING SERVO DRIVE
CALCO 1/2HP AC MOTOR,1730RPM,115/230VAC,NEW
CALCO 1/2HP AC MOTOR,1730RPM,115/230VAC,NEW,56 FRAME
PARKER HPX15T-XTAA-2 OPERATOR INTERFACE COMPUTOR,NEW
SQUARE-D FA36060 60 AMP CIRCUIT BREAKER I-LINE
STRIPPIT 1-1/4″ NUMBER PUNCH W/ 7 NUMBER KEYS
20 FAFNIR G1008KRRB+COL 1/2″ BEARINGS W/COLLARS NEW
ALLEN-BRADLEY 22B-D024H204 POWER-FLEX 40 AC DRIVE
MITUTOYO 321-011 CMM PROBE, SENSOR
HARIG TRU-DEX PRECISION WHEEL DRESSER,RADIUS-TANGENT
Quantum Sun 213830-17P 212330-05 6471405-11 633056405
Sun 380-1196-1 LTO-3 Tape Drive 6420800-11 70-85775-01
Motorola VME Card SBC MPC750 EO-00102 XPC8260 8260 166
Motorola AdvancedTCA 10GBPS Ethernet Blade Force PMC
Motorola CPCI CompactPCI PCRB 01-W3833F-02C CPSB Blade
ROBERTSHAW Robert Shaw N506010 N506-010 Controller
DEC Rainbow 100/190 ONLY ONE IN THE WORLD rare vintage
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IB800 IB800S-16M P4 SBC PICMG Industrial Computer 2GHz
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ZNYX ZX4500P CPCI Card Dual 1000sx Switch 700-0113-003
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Themis USPIIi-1V UltraSPARC IIi VME64 VME SBC Sun Creat
Vintage Hard Disk Drive HP 97500-85620 9153C NIGHTHAWK
Hard Drive ESDI NEC D5655 Disk HH 134-500588-602 *NEW*
HP 64708A 64708-66505 VME Card A-3345-09 68030 analyzer
DEC Intel BRUTUS SA-1100 Design Verification Platform
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AMPRO Little Board/286 SBC A60220 rev D1 w SCSI tiny
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Motorola MCPN765 CPCI CompactPCI SBC 01-W3569F-13C
Husky 648522 Control Card Module HPM 686114
Motorola CPCI CompactPCI JTAG CPLD Tsi320 01-W3850F-01A
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Pentium SBC Industrial PICMG Rocky-P248V-3.0 Slot1
Micro Memory MM-6490R/1G Dual-Port VME VME64 RACEway
VME card MERCURY MCV6 RACE QUAD I860-XR 40MHZ CPU 8M
OCULUS TCi XR-M130-1180A ACQUISITION BOARD
VME-MMCPU Vintage 68000 CPU Card 450-01172-01 Rev A
Qbus DEC VAX emulex UC0710401-04 RevJ Dual Port SCSI
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Ariel DSP-56 Motorola DSP560001 SCSI DSPnet 8bit ISA
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VME MERCURY MCV6 RACE QUAD I860-XR 40MHZ CPU 4M
Blue Wave CPCI C6402-02 C6400 Comstruct DSP TMS320
Tape Drive SCSI Mammoth-2 M2 HVD 220/4X0 1005941-000
IXIA MCi 850-0002-0A Trigger Synch ISA Netwok Card
BSI SBS Telemetry Data Acquisition 4411C PCDECOMMUTATOR
SBC Slot1 Peak 630C 630-C PICMG Industrial Computer MB
Dome Imaging 55-MD5PCX2-51 MD5/PCX Display Controller
Leitch 743-190 Dpsreality Board DPS 743-191 PCI Card
Hunter Industrial Pentium Motherboard FU-PNTHI-256A/F/4
Motorola VME Card MVME131 SBC 68020 CPu M68KVMMB-851
Qbus DEC VAX PDP CMD CQD-423/TM BOYB2L 1997
Cylink SWIFT SecureX25L Encryptor *BRAND NEW*
IBM Type 5494 All Remote Control Unit AS/400 Twinax
IBM Type 5494-B3083 Remote Control Unit AS/400 Twinax
Overland Tape Software TC-PC TX-8 TC-50M IBM XT/AT 1987
Wordstar 4 Professional 5.25 inch DOS COMPLETE PACKAGE
MOTOROLA VME Card MVME197DP 01-W3815B MVME197 88410 197
Motherboard Sun Blade UltraSparc IIIi 210/240 375-3107
SBC Peak 510S 510 PICMG Peak510S Industrial Socket5
Corelis PC-1149.1/100F controller JTAG Emilator ISA A2
Macintosh Performa 5400 6400 Motherboard 820-0828-A G3
Wicat 150WS 1982 Z80 MultiBUS Memory Card TMS4164 TMM
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Fastest VLB Motherboard PCI Pentium PCI54PV Socket5 1.2
HP 13398A CE Alignment Pack 7920 Disc Drive CDC PE Disk
Toshiba T5100 Vintage 386 Laptop PA8040U
IBM PS/1 Type 2121-P82 Rare 386sx Vintage Computer
Sun Storedge L280 Tape Library 380-0079-01 3703423-01
27256 256 256K EPROM Large Quantity BULK LOT 1000 pcs
Marantz CDR510 Professional CD Player/Recorder CDR-510
Tandberg Overland Data SCSI Library SLR100 1108 006295
CISCO CSS5-SCM-2GE **NEW** 11500 Switch Control Module
CISCO CSS5-IOM-8FE **NEW** 11500 Fast Ethernet Module
EICON Diva Server PRI-Digital 800-681-02 PCI Card
Algorithmics P5064 Evaluation Platform RM5270 RM7000
HP ULTRIUM 215 LTO-1 SCSI LVD Tape Drive C7377-60040-ZN
HP Compaq AP400 System Board 317706-001 LOADED DUAL CPU
HP 9000 HP9000 E45 CPU Board A2576-60001 A2051-66531
A1027-66510 System Board Motherboard HP 822S 69510
Motherboard Pentium TYAN Tomcat S1563 Socket7 Dual
Pentium Motherboard Slot1 ASUS P2B-D2 v1.02 Dual SCSI
HP Compaq System Board 011653-001 Proliant ML370 G3
Advantech CompactPCI CPCI CPU Card MIC-3365 MIC-3365F
SBC Advantech PCA-6180-A1 PICMG P3-600 1906618002
TriEMS 6221 CPCI CompactPCI 206221 RevB Antara.NET SBC
Motorola CPN5360 CPCI CompactPCI SBC 01-W3632F-16A 500M
FORCE SPARC CPU-5V/64-110-2 /16 VME MAINFRAME CARD
Motherboard Pentium TYAN Tomcat S1562-PCB-04 S1562S
Motherboard Pentium TYAN Tomcat S1563-PCB-01 3.02
Hard Drive ESDI Micropolis 1568 ES0003-01-1D Disk FH
Sony Optical Drive SMO-E301 MO Disk Drive 1993
Hard Drive SCSI Micropolis 1588-15MBSUN0669 370-1326-04
Hard Drive SCSI Epson HMD-946-504-01 HMD946
MFM Hard Drive Miniscribe 8425 Vintage 3.5
Data Translation DT2871 color frame grabber board ISA
Motherboard Dual Pentium Pro Intel PR440FX 673289-508
Cleo Software 212 201 Phone 1 Inc CCITT 8bit ISA Modem
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CWS Data Acquisition 03-907879-01 Rev1 Vintage ISa Card
LSI Logic MiniRISC BDMR400x Evaluation Board MR400x rB
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JUMPtec 18001-0008-26-1 ETX-P1-EG Module with 32MB RAM
Pelco CM9700-SER SERCOM-8 Card 8-port ISA PCB9759003-F
AP5200IF Pentium SBC Corsair Flash CM2258FX PICMG PC104
Trenton PICMG SBC Slot1 20-005601-04 440LX Teknor H-04
Hard Drive C.Itoh YE Data YD-3540 MFM Vintage Disk HDD
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09L5143 34L2729 21H8979 13N4734 34L7935 RS/6000 4 Cards
HP 9000 A1703-60031 A2516-60001 Series 800 900 756MB
N5120 Quad Port Comms Controller 40449-002 RS-422 RS422
IBM RS6000 7025-F50 Planar 07L6594 73H1925 93H4228
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Motorola CPV5350 CPCI CompactPCI SBC 01-W3573F-02E
FLEXDS PCI Card RevB by DSP Research PLX PCI9052
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Texas Instruments Activator 2 SCSI FPGA PAL Programmer
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IOtech DaqBoard 200 RevB 2954000 16-bit ISA Card AD676
CompuAdd HC ESDI ISA Hard Disk Drive Controller Card
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Tandberg SLR60 SLR SCSI Tape Drive Nortel NTRH9095
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Hard Drive IBM Fujitsu M2952SYU 50pin SCSI CA01407-B313
SBC Texas Micro 25527 RevG Dual Slot1 PICMG
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BDMR4010-PC/SUN Evaluation Board LSI MiniRISC CW4010
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Motherboard Pentium Dual 370 EliteGroup D6VAA rev:1.1
SCSI Hard Disk 50-pin Fujitsu M2614SA Rev C6
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Newport/Klinger 12-bit DC Motor Controller Card ISA
TEAC SCSI Floppy Drive FD-235HS 19308111-21 0950-9074
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