描述

DSAO110

由于現(xiàn)場總線的以上特點，特別是其系統(tǒng)結構的簡化，使其從設計、安裝、投運到正常生產運行及檢修維護，都體現(xiàn)出優(yōu)越性。它不僅節(jié)省了硬件數(shù)量與投資，節(jié)省了安裝費用，而且系統(tǒng)的維護開銷也大大地降低?，F(xiàn)場總線控制系統(tǒng)不僅精確度與可靠性高，在方便使用和維護性方面，F(xiàn)CS也比DCS有優(yōu)勢。FCS使用統(tǒng)一的組態(tài)方式，安裝、運行、維修簡便；利用智能化現(xiàn)場儀表，使維修預報（Predicted maintenance）成為可能；由于系統(tǒng)具有互操作性和互用性，用戶可以自由選擇不同品牌的設備達到最佳的系統(tǒng)集成，在設備出現(xiàn)故障時，可以自由選擇替換的設備，保障用戶的高度系統(tǒng)集成主動權。此外，它還具有設計簡單，易于重構等特點。

傳統(tǒng)的集散控制系統(tǒng)（DCS系統(tǒng)）具有集中監(jiān)控、分散控制、操作方便的特點。但是，在實際應用中也發(fā)現(xiàn)DCS的結構存在一些不足之處，如控制不能做到徹底分散，危險仍然相對集中；由于系統(tǒng)的不開放性，不同廠家的產品不能互換、互聯(lián)，限制了用戶的選擇范圍。利用現(xiàn)場總線技術，開發(fā)FCS系統(tǒng)的目標是針對現(xiàn)存的DCS的某些不足，改進控制系統(tǒng)的結構，提高其性能和通用性。
FCS想要在實際中取代DCS，既要具備DCS所具有的功能，又要能克服DCS的缺點。FCS由于采用了現(xiàn)場總線技術，在開放性、控制分散等方面優(yōu)于傳統(tǒng)DCS。但是由于它是一種新技術，目前連標準本身都還沒有制定統(tǒng)一，因此FCS與成熟的DCS相比，還存在下列的一些欠缺。

Parker Pressure Comp Flow Control 3000PSI # PCMS1600S

Parker Hydraulic Pump Pressure Comp Piston 32GPM P2075P

PARKER HYDRAULIC PRESSURE REDUCING VALVE~NEW~SURPL?US~

PARKER 422-8-RL MEDIUM PRESSURE HYDRAULIC HOSE 1/2″

PARKER PR3MM Pressure Reducing Valve

NEW PARKER R6PH PRESSURE CONTROL VALVE

3 Parker Low Pressure Regulators SQMICRO130E602P?FSMM

Parker Hydraulic Pressure/Temp CompFlow Control FG3PKCA

PRESSURE REDUCING GAUGE VERIFLO PARKER NPR73530W4PXFSM

Parker Proportional Pressure Valve NIB

New Overstock Parker A4ADB Pressure Regulator Valve

Parker Low Pressure Regulator SQ2MICRO0302PFS?MM New

NEW PARKER PRESSURE SWITCH SCPSD-250-04-17

Parker 240′ 1/2″ Low Pressure 250 PSI Rubber Hose 801-8

PARKER PRESSURE REGULATOR VALVE – REFRIGERATION

Parker RAS-600-S4 RAS600S4 RAS600S Pressure Valve NEW

Parker Hydraulic Pressure Compensated Flow Control

NIB Parker Veriflo Pressure Regulator 3000 PSI 41500617

Parker RAS600S Pressure Control Valve RAS600S

Parker PRC3MM Pressure Control Valve Hydraulic

8523 NEW Parker A4AD Pressure Regulator

Parker 214′ 1/2″ Low Pressure 250 PSI Rubber Hose 801-8

2658 NEW PARKER A4AD Refrigerant Pressure Regulator

Parker PR-1-4114-2 High Purity Pressure Regulator

PARKER PSB040AF1A HYDRAULIC PRESSURE SWITCH NIB

Parker PR-3-4118-1 ?” PTFE Pressure Regulator

Parker 959100W2PFSMM High Pressure Regulator NEW

PARKER PRESSURE DRIVER CARD 801179 **NICE**

PARKER PRM3AA25KNS 50 PRESSURE CONTROL VALVE New

Parker Hydraulic Pump Pressure Comp Piston 5GPM #PAV10

Parker BC10BMV 10 pressure control Valve NNB BC10BMV10

PARKER PRDM3PP02SVS PRESSURE REDUCING VALVE 315 BAR NEW

Parker Veriflo Pressure Regulator

Parker Hydraulic Pump Pressure Comp Vane 45D10L1A1B1AC

Parker 3000 PSI Hyd Pressure Cylinder 03.25JJ2HTS #6078

Parker Oildyne OE4-SBHS-5K Hydraulic Pressure Switch

Parker Convum MPS-R3F5-NC Stainless Pressure Sensor New

PARKER A810E FLO-CON OUTLET PRESSURE REGULATOR 85272

New Parker Manapak Pressure Reducing Valve PRM3PA17KN32

PARKER REGULATOR BACK PRESSURE, BR-3-1168-2

Parker Low Pressure Regulator SQMICRO130E602P?FSMM New

Parker Low Pressure Regulator SMSQ2MICRO30102 New

Parker Hyd Pressure Reducing Valve PRDM2PP16SUS (NIB)

NEW PARKER VERIFLO DSG HP PRESSURE REDUCING REGULATOR

NEW, PARKER PRESSURE REDUCING VALVE PR800SM-20KE

PARKER HYDRAULIC PRESSURE REDUCING VALVE R6PM

Parker RAS-600-S4 RAS600S4 RAS600S Pressure Valve USED

Parker hydraulic pressure reducing valve FM3DDKN-50

Parker Hydraulic Pressure Reducing Valve

Parker Hydraulic Ring ASB250AF1A4 Pressure transducer

7134 NEW Parker A4A Pressure Regulator 1″

Parker Pressure Reducing Valve AR FM3DDKN 55

Parker Pressure Reducing Valve DR FM3DDKN 55

Parker 621B-6 Pressure Control Valve 621B6 USED

Parker PRDM2PP16SVG, Pressure Reducing Valve NEW

Parker PRDM2BB16LVM, Pressure Reducing Valve NEW

Parker PRDM2BB02LNM, Pressure Reducing Valve NEW

Parker PRDM2PP02LNM, Pressure Reducing Valve NEW

PARKER 626092 OILDYNE PRESSURE SWITCH 0E4-SBKS-44K NEW

PARKER HYDRAULIC PRESSURE REDUCING VALVE PRDM2PP16LNS

PARKER PRDM2PP16SVGX79?7 PRESSURE REDUCING VALVE NIB

PARKER MODEL A4A PRESSURE REGULATOR 2 1/2″ NEW

PARKER PRM3PP25K HYDRAULIC PRESSURE CONTROL VALVE

Parker Flo-Con By-Pass Pressure Regulator SM080128 NIB

Parker Pressure Filter F3-15P-1-40SA-E?S-50-XX-11-80

Parker 41975 20-20 Clamp SAE flange high pressure

Parker PRM3PAH-20GB Pressure Reducing Valve

Parker PR400SHV Pressure Reducing Valve

NOS! PARKER REMOTE PRESSURE AIR VALVE CWJ12501

NEW Parker Hydraulic Filter 932630Q High Pressure

Parker D39DW11C4N89 75, PRESSURE REGULATION VALVE , NEW

PARKER VERIFLO IR400S4PG PRESSURE REDUCING REGULATOR

NOS! PARKER REMOTE PRESSURE VALVE CC1225B

LOT PARKER VERIFLO PRESSURE TRANSDUCER SWITCH DWYER

Parker Oil Pressure Regulator Control Valve A4AL; *A7

Parker high pressure clamp flange elbow 41775-16-16

Parker 41575 16-16 Clamp SAE flange high pressure 1 in

Parker 035682000B Pressure Regulator

Parker Veriflo 944AOPLPNOSFSFF High Purity Low Pressure

PARKER HIGH PRESSURE BALL VALVE # BV3H06S2SS1N

LARGE PARKER 1″ AIR PRESSURE REGULATOR NEW 035682000B
Expedited shipping available

PARKER 035662000B PRESSURE REGULATOR 5-125 PSIG NEW

Pressure Pump Inlet Filter **NEW** Part#1J2-5

Parker Flo-Con Pressure Regulator A7-A

PARKER FP2AUS14 250 PRESSURE 1.000 STROKES AIR

PARKER H2 1/2″ SAFETY PRESSURE RELIEF VALVE REFRIGERANT

Parker 73212BN52N00 3/4″ Skinner Pressure Vessel 2-Way

PARKER REMOTE PRESSURE VALVE CC1225B 150 PSI DO 1/4″

Parker Veriflo IR4205 Stainless High Pressure Regulator

PARKER 1/4 NPT CONTROLLED PRESSURE SAFETY THUMB LEVER

Parker Veriflo 1/4″ Pressure Regulator (SQ2MICRO130E60?)

Parker Pressure Regulator 72-130
Expedited shipping available

NEW PARKER FLO-CON BYPASS HOT GAS PRESSURE REGULATOR A9

3 NEW PARKER MANAPAK PRESSURE CONTROL VALVES PRM2PP07KN

5 PARKER SENSOCONTROL PRESSURE SWITCH SCPSD-600-04-07

LOT 2 PARKER PRESSURE REGULATOR MASTER PNEUMATIC FILTER

parker bvhp12bss1na HIGH PRESSURE BALL VALVE

2″PARKER BRUNING HI PRESSURE INLINE CHECK VALVE DC20005

PARKER HIGH PRESSURE HOSE

Parker PRM3 PP17K Pressure Reducing Valve 150-2500 PSI

A810E Parker FLOCON 1-3/8″ Outlet Pressure Regulator
One-day shipping available

PARKER/SCHRADER BELLOWS PRESSURE REGULATOR 035662000B

2683 NEW Parker 201673 Pressure Regulator

PARKER HYDRAULIC PRESSURE REDUCING VALVE V-21 FT

New Parker CPOM2AAV55X Pilot-Oper. Pressure Check Valve
Expedited shipping available

NIB PARKER BVHP16SSS1NA HIGH PRESSURE BALL VALVE
Expedited shipping available

Parker Hydr. Pressure Reducing Module D03 # BD03PNR-A

Parker 035643000B Pressure Regulator NEW Free Shipping
One-day shipping available

Parker hydraulic cylinder model C2H19 PRESSURE 3000

Parker 3/8″ S. Air Dual Pressure Switch New

Parker Hannifin Hydraulic Pressure Control Valve 3000

Parker Pressure Switch Male DIN P01909

NEW PARKER BI-PRESSURE PUMP CONTROL FPS-213

Parker hydraulic filter assembly , pressure switch 18p

PARKER PRESSURE REDUCING HYDRAULIC VALVE PRM3PB25KN 32

PARKER PRESSURE REDUCING HYDRAULIC VALVE PRM3PAH-20HY

PRESSURE REDUCING RELIEF VALVE, PARKER #PR101S10-C3F

Parker SensoControl Senso Control SCP-8181 Pressure

NEW PARKER VERIFLO IR501B6P0140458?0 PRESSURE REGULATOR

*NEW* Parker Senso Control Pressure Controller #SCPSD

Parker grade 10 Hi pressure filter element 10CWC08-033

Parker 1/2″ remote pressure valve SS121050 NIB
One-day shipping available

MAZAK PARKER PRESSURE REGULATOR UNIT

PARKER VERIFLO 43200648 PRESSURE TRANSDUCER

Parker Veriflo Pressure Regulator Valve 45100064 SS

New Parker Veriflo Pressure Regulator 43800745 Series

Parker Veriflo Pressure Regulator Valve 742793

Ewal/Parker Titan II 1/4″ Pressure Actuation Valve

Parker 71216SN2FU00 Skinner Valve Pressure Vessel

PARKER PRM2PP07LN 42 HYDRAULIC PRESSURE CONTROL VALVE

Parker MPS Convum PRESSURE Switch P6N-PG(11)

Parker sandvik high pressure hydraulic filter housing

2669 NEW Parker A4AZ Inlet Pressure Regulator

PARKER REFRIDGERANT INLET PRESSURE REGULATOR A8 A81

Parker pressure regulator 8311

Parker TFE 919-5 Stainless Steel High Pressure 1/4 Hose

PARKER PRESSURE REGULATOR

PARKER HYDRAULIC PRESSURE REDUCING VALVE ~NEW~SURPLUS~

2 NIP NEW PARKER PRESSURE SWITCH PS1-P1091 81099

Parker 035632000B Pressure Regulator

PARKER 9S HI PRESSURE SWIVEL PS1690106-16-16

NEW PARKER BVHP08SSS1NA HIGH PRESSURE BALL VALVE
Expedited shipping available

PARKER PRESSURE REGULATOR 035631000B

PARKER PRESSURE REGULATOR 035642000B

PARKER 035642000B PRESSURE REGULATOR 5-125 PSIG NEW

Parker Valve, pressure relief VR74FSF3SK

Parker Parflex 560-10 5/8″ Medium Pressure Hose 50′

PARKER UHP VALVE…VALVE PRESSURE 150 PSI MAX.

PARKER HYDRAULIC PRESSURE REDUCING VALVE ~NEW~SURPLUS~

Ewal/Parker 1/4″ Inline Needle Pressure Air/Gas Valve

PARKER 07R313AC 1/2″ 250PSI AIR PRESSURE REGULATOR

3957 NEW Parker PR101S20 Hyd Pressure Reducer Valve

7 NEW PARKER VERIFLO PRESSURE RELIEF VALVE 110ST100

PARKER HI PRESSURE LIVE SWIVEL

Veriflo PARKER Gas / Pressure Valve Diaphragm

PARKER PRESSURE REGULATOR 5-125 PSIG

PARKER HHR1 SANDWICH PRESSURE REGULATOR W/GAUGE NEW

PARKER SCHRADER 0-60 PSIG 035600200 PRESSURE GAUGE NIB

PARKER HANNIFIN PARFLEX HIGH PRESSURE HOSE ASEMBLY

Parker Hydraulic Pressure Filter 5W353 925580

PARKER PNEUMATIC – PRESSURE REGULATOR 06R213AB 250PSI
Expedited shipping available

NEW PARKER 07R324VC PRESSURE REGULATOR

NEW – Lot of 10 – Parker 3/8″ Brass Low Pressure Valve

PARKER A1 CONSTANT PRESSURE EXPANSION VALVE

PARKER PNEUMATIC PRESSURE REGULATOR 3/8″ Ports 06R213AC
Expedited shipping available

PARKER PRESSURE FLOW CONTROL # PCK1020S-11

PARKER CONVUM DIGITAL PRESSURE SENSOR MPS-P32N-PG

PARKER PRESSURE REGULATOR

Parker-Finite Pneumatic pressure regulator F06R313AC

PARKER ASIC PERFORMER PRESSURE TRANSDUCER TRANSMITTER

PARKER ASIC PERFORMER PRESSURE TRANSDUCER TRANSMITTER

PARKER HI PRESSURE LIVE SWIVEL

PARKER 035632000B PRESSURE REGULATOR NIB

New Parker Pressure Regulator 06R216AC 250 PSI P-Max

Parker 71215SN2EN00 Pressure Vessel USED Free Ship

Parker Pressure Reducing Manapak Flow Control Valve NIB

NIB PARKER 71215SN2EN00 PRESSURE VESSEL ORIFICE 3/64

Parker No-Skive High Pressure Hydraulic Hose 304-1 NIB

International NEW Parker Pressure Switch 379502 FR SHIP

New Parker GP-111-03 Pressure Gauge 0-160 PSI Regulator

PARKER PNEUMATICS PRESSURE OIL AIR HYDRAULIC CYLINDER

Parker Schrader Pressure Regulator Gauge 035600200

NIB PARKER PNEUMATIC PRESSURE REGULATOR 14R013FC 1/8″ F

PARKER FOR TOTAL CONTROL WHEN THE PRESSURE’S ON 20713

Parker Veriflow Air Pressure Regulator Valve HFR902W

Parker PS1-P1091 Pneumatic Pressure Switch Line Mounted

Carrier Parker Differential Pressure sensor

Lot of PARKER POLYFLEX HIGH PRESSURE FITTING Qty 4 NEW

NEW LOT INDUSTRIAL PARKER HIGH PRESSURE HOSES 2600PSI

NEW PARKER PNEUMATIC REMOTE PILOT SIGNAL PRESSURE VALVE

PARKER AIR PRESSURE with POLYCARBONATE BOWL & GAUGE

PARKER FINITE DIFFERENTIAL PRESSURE INDICATOR DPI-13

PARKER PRESSURE REGULATOR 1/4″ 035602000B 5-125PSIG

NEW! Parker 3/8″ Bronze Hydraulic Pressure Hose *

PARKER A2-11390 CONSTANT PRESSURE EXPANSION VALVE

4 used PARKER 3/8″ TUBE X 3 HIGH PRESSURE TEE