A06B-0/04-B111#7000
A06B-0/04-B111#7000
DCS發(fā)展至今已相當(dāng)成熟和實(shí)用,毫無疑問,它仍是當(dāng)前工業(yè)自動化系統(tǒng)應(yīng)用及選型的主流,不會隨著現(xiàn)場總線技術(shù)的出現(xiàn)而立即退出現(xiàn)場過程控制的舞臺。面對挑戰(zhàn),DCS將沿著以下趨勢繼續(xù)向前發(fā)展:
(1)向綜合方向發(fā)展:標(biāo)準(zhǔn)化數(shù)據(jù)通信鏈路和通信網(wǎng)絡(luò)的發(fā)展,將各種單(多)回路調(diào)節(jié)器、PLC、工業(yè)PC、NC等工控設(shè)備構(gòu)成大系統(tǒng),以滿足工廠自動化要求,并適應(yīng)開放式的大趨勢。
(2)向智能化方向發(fā)展:數(shù)據(jù)庫系統(tǒng)、推理機(jī)能等的發(fā)展,尤其是知識庫系統(tǒng)(KBS)和專家系統(tǒng)(ES)的應(yīng)用,如自學(xué)習(xí)控制、遠(yuǎn)距離診斷、自尋優(yōu)等,人工智能會在DCS各級實(shí)現(xiàn)。與FF現(xiàn)場總線類似,以微處理器為基礎(chǔ)的智能設(shè)備如智能I/O、PID控制器、傳感器、變送器、執(zhí)行器、人機(jī)接口、PLC相繼出現(xiàn)。
(3)DCS工業(yè)PC化:由IPC組成DCS已成為一大趨勢,PC作為DCS的操作站或節(jié)點(diǎn)機(jī)已很普遍,PC-PLC、PC-STD、PC-NC等就是PC-DCS,IPC成為DCS的硬件平臺。
(4)DCS專業(yè)化:DCS為更適合各相應(yīng)領(lǐng)域的應(yīng)用,就要進(jìn)一步了解相應(yīng)專業(yè)的工藝和應(yīng)用要求,以逐步形成如核電DCS,變電站DCS、玻璃DCS、水泥DCS等。
PARKER L72538621B9VXBB PNEUMATIC SOLENOID VALVE 24V 150 PSI NEW CONDITION
NUMATICS I34BB500MP14X61 PNEUMATIC SOLENOID VALVE 24V 150 PSI NEW CONDITION
NUMATICS I34BA400MP14X61 PNEUMATIC SOLENOID VALVE 24V 150 PSI NEW CONDITION
NUMATICS A23SS400S000030 PNEUMATIC SOLENOID VALVE 120V 150 PSI NEW CONDITION
NUMATICS A23BA400S000030 PNEUMATIC SOLENOID VALVE 120V 150 PSI NEW CONDITION
SEALMASTER ST-23C TAKE-UP PILLOW BLOCK BEARING 1-7/16 BORE NEW IN BOX
NUMATICS 123BA400KP00030 PNEUMATIC SOLENOID VALVE 120V 150 PSI NEW CONDITION
NUMATICS 123SS500K000030 PNEUMATIC SOLENOID VALVE 120V 150 PSI NEW CONDITION
ALLEN BRADLEY 592-J0V16 OVERLOAD RELAY 3-POLE MANUAL REST NEW CONDITION IN BOX
NUMATICS A23BB500K000030 PNEUMATIC SOLENOID VALVE 120V 150 PSI NEW CONDITION
NUMATICS 134BB600MP14X61 PNEUMATIC DUAL SOLENOID VALVE 24V 150 PSI NEW CONDITION
REXROTH 361 050 000 2 CONTROLAIR FACTORY REPAIR KIT NEW CONDITION IN BOX
NORGREN 8110168E-0162-G PNEUMATIC SOLENOID VALVE 120V NEW CONDITION IN BOX
AUTOMATIC VALVE 338D32C3-AAK4 PNEUMATIC SOLENOID EXHAUST VALVE 150PSI NNB
ROSS 5055B6009 PNEUMATIC SILENCER RECLASSIFIER 1" NPT NEW CONDITION IN BOX
ARO 59842 LOGIC ASSEMBLY 125 PSIG MAX. NEW CONDITION IN BOX
NORGREN MF-12 PNEUMATIC MUFFLER 1/2" NPT CONNECTION NEW CONDITION NO BOX
VALENITE 10-ZA-2805 INSERT TOOL HOLDER BORING BAR NEW CONDITION IN BOX
VALENITE 27ZA-19890 VRS-11731 INSERT TOOL HOLDER NEW CONDITION IN BOX
KENNAMETAL ND5 010ZA2597 INSERT TOOL HOLDER NEW CONDITION IN BOX
EFECTOR PN3021 PRESSURE SENSOR 0-250 BAR NEW CONDITION / NO BOX
ENTRELEC 176 277 05 BJMS JUMPERS 10 POLE ( SET OF 10 PCS.) NEW CONDITION
AIR GAGE 01819-04 AMP/OSC CONTROL MODULE NEW CONDITION / NO BOX
MOORE PRODUCTS 13811-3 OPERATOR INTERFACE KEYPAD W/ RIBBON CONNECTION NOS
SPRAYING SYSTEMS 3/8P SS 5060 FLATJET SPRAYING NOZZLE NEW CONDITION NO BOX
SMC D-A33 AUTO SWITCH NEW CONDITION / NO BOX
SMC D-A37-8 AUTO SWITCH 24 VDC NEW CONDITION / NO BOX
PARKER DAEDAL CR4101 CROSS ROLLER SLIDE TABLE 1.75 X 2.00 NEW CONDITION NO BOX
COOPER TOOLS 932368 FACTORY REPLACEMENT ROTOR NEW CONDITION IN PACKAGE
PILLAR INDUSTRIES AB4148-1 FIRING BOARD NEW CONDITION / NO BOX
OMTRON 569001D TEMPERATURE CONTROL BOARD HMT 241 NOS CONDITION
BUSSMANN FUSETRON FRN-R-35 TIME-DELAY FUSE 35A 250VAC NEW CONDITION NO BOX
BUSSMANN LPJ-3SP LOW PEAK TIME-DELAY FUSES 3A 600VAC (SET OF 6) NEW NO BOX
COOPER BUSSMANN FWP-50A SEMICONDUCTOR FUSE 50A 700V AC/DC NEW CONDITION IN BOX
BUSSMANN FWP-70B FUSE 70A 700V NEW CONDITION IN BOX
COOPER BUSSMANN F-40A SEMICONDUCTOR FUSE 40A 250VAC/DC NEW CONDITION IN BOX
BANNER AP31-040V VERTICAL SLOTTED APERTURE (NEW PACKAGE OF 20)
ATKOMATIC VALVE JJ 400 SOLENOID VALVE 1/2" NPT 12VDC NEW CONDITION NO BOX
KAWASAKI 50607-1087R00 POWER SUPPLY BOARD NOS CONDITION
MARTIN 40SH20H SPROCKET TAPER LOCK BORE 20 TEETH NEW CONDITION IN BOX
NACHI 6017-2NSL C3 SEALED ROLLER BEARING NEW CONDITION IN BOX
INA 6304RS ROLLER BALL BEARING .785 ID 2.047 OD .590 W SEALED 1 SIDE NEW IN BOX
SQUARE D 8997 EQ-5214 MP-1 SERIES A MEMORY PACK REFURBISHED CONDITION
SQUARE D 8997 EQ-5214 MP-1 SERIES A MEMORY PACK USED CONDITION
STATEC TECHNOLOGIES KDX80 S2C2 INTERFACE MODULE NOS CONDITION / NO BOX
STAINLESS AUTOMATION BCI 8202 SIGNAL TRANSFORMER BOARD NEW CONDITION IN PACKAGE
JB CONTROLS PC 404 OUTPUT MODULE NEW CONDITION / NO BOX
AIR GAGE 01154-05 DRO DIGITAL READOUT MODULE NEW CONDITION / NO BOX
BANNER SM31E MINI-BEAM INFRARED EMITTER 10-30 VDC NEW CONDITION / NO BOX
BANNER SM31ELQD MINI-BEAM LONG RANGE EMITTER NEW CONDITION / NO BOX
ALLEN BRADLEY 1495-N12 AUXILIARY CONTACT SIZE 0-2 NOS CONDITION IN BOX
SPRAYING SYSTEMS 1/4A SS 5 WHIRLJET NOZZLE STAINLESS STEEL NEW NO BOX
CUTLER HAMMER E58-30TD250-GLP PROXIMITY SENSOR 250M 20-132VAC 15-30VDC NNB
TRABON LUBRIQUIP MSP-20S DIVIDER BLOCK NEW CONDITION NO BOX
REXROTH 5460025022 POWER SUPPLY TYPE SGR 24/2 NEW CONDITION NO BOX
BUSSMANN MCR-3 MICROTRON FUSES 50A 125VAC NEW BOX OF 10 FUSES
DODGE BRG22218C3 DOUBLE SPHERICAL ROLLER BEARING # 421268 NEW CONDITION IN BOX
SEALMASTER ER-35T BEARING INSERT WITH COLLAR 2-3/16" BORE NEW CONDITION IN BOX
SEALMASTER ER-19T BEARING INSERT WITH COLLAR 1-3/16" BORE NEW CONDITION IN BOX
SHAWMUT A4J350 AMPTRAP FUSE 350A 600VAC CLASS J NEW CONDITION / NO BOX
SQUARE D 9001 KM1 PILOT LIGHT MODULE WITH LAMP 110-120V NEW CONDITION / NO BOX
BUSSMANN FNM-20 FUSETRON MIDGIT FUSES 20A 32VAC NEW BOX OF 10
BUSSMANN 216 BUSS FUSE REDUCERS (1 PAIR) 100 TO 60A NEW CONDITION IN BOX
LAWSON FLSR 2 IDL WINDOCATOR FUSES 2A 75-600VAC TIME DELAY RK5 SET OF 5 NNB
LAWSON FLSR 25 IDL WINDOCATOR FUSES 25A 75-600VAC TIME DELAY RK5 SET OF 3 NNB
LITFUSE FLSR 6 ID INDICATOR FUSE 6A 75-600VAC/DC NEW CONDITION NO BOX
LAWSON FLSR1 IDL WINDOCATOR FUSES 1A 75-600VAC TIME DELAY CLASS RK5 SET OF 4 NNB
LITFUSE IDSR 2-1/2 INDICATOR FUSES 2-1/2A 75-600VAC/DC (SET OF 2) NEW NO BOX
LAWSON FLNR 354 IDL WINDOCATOR FUSES 35A 250VAC RK5 NEW SET OF 3 NO BOX
LAWSON FLNR 40 IDL WINDOCATOR FUSES 40A 250VAC RK5 NEW SET OF 4 NO BOX
LAWSON FLSR5 IDL WINDOCATOR FUSES 5A 75-600VAC TIME DELAY CLASS RK5 SET OF 3 NNB
GOULD SHAWMUT ATM 25 FUSES 25A, 600VAC 500VDC SET OF 3 NEW FUSES NO BOX
BUSSMANN LPN-RK-12SP LOW PEAK TIME-DELAY FUSES 12A (SET OF 5) NEW CONDITION
LITFUSE IDSR 1-1/2 INDICATOR FUSES 1-1/2A 75-600VAC/DC (SET OF 3) NEW NO BOX
CUTLER HAMMER FH-10 THERMAL OVERLOAD HEATING ELEMENTS .57-.63A (NEW SET OF 2)
CUTLER HAMMER FH-10 THERMAL OVERLOAD HEATING ELEMENTS .57-.63A (NEW SET OF 3)
ALLEN BRADLEY 836T-T253J PRESSURE SWITCH 12-150 RANGE EXCELLENT USED CONDITION
CUTLER HAMMER M30CBP 10A71D PLUG-IN TYPE STARTER/RELAY DISCONNECT ASSY. NOS
MAC VALVES 6322D-341-2E-110EA PNEUMATIC SOLENOID VALVE NEW CONDITION NO BOX
MAC VALVES 821C-2E-110EA-152 PNEUMATIC SOLENOID VALVE NEW CONDITION IN BOX
EMECANIQUE LC1D09G7 CONTACTOR 120V COIL 20695 NEW CONDITION / NO BOX
FESTO HGPP-20-A-G2 PRECISION GRIPPER NEW FACTORY SEALED IN BOX
DODGE 133293 SPLIT THRUST COLLAR 4-15/16 NEW CONDITION IN BOX
FESTO SMH-S1-HGPP20/25 HALL SENSOR 189042 NEW CONDITION IN PACKAGE
FESTO 173218 SMT-10-PS-KL-LED-24 PROXIMITY SENSOR / SWITCH NEW IN PACKAGE
RUSSELLSTOLL SKRR12XG EVER-LOK RECEPTACLE 12W 11P 20A 250/600VAC NEW NO BOX
COPELAND 012-3030-00 DEFINITE PURPOSE CONTACTOR 30A 600V NEW CONDITION IN BOX
RANCO G23-5052 A/C HIGH PRESSURE CONTROL SPDT P20EB-4 NEW CONDITION IN BOX
TOL O MATIC 02240200 FLOAT-A-SHAFT HIGH TORQUE BEARING 1" BORE NEW CONDITION
FAFNIR 309PP SEALED ROLLER BALL BEARING 45 X 100 X 25MM NEW CONDITION IN BOX
SKF 2314 M SELF ALIGNING DOUBLE ROLLER BALL BEARING NEW CONDITION IN BOX
SKF 2316 M SELF ALIGNING DOUBLE ROLLER BALL BEARING NEW CONDITION IN BOX
BUSSMANN FRS-R-4 FUSETRON CLASS RK5 FUSES 4A 600V FRSR4 NEW BOX OF 10
RUSSELLSTOLL SKRR12XG EVER-LOK RECEPTACLE 12W 11P 20A 250/600VAC NEW IN BOX
SCHMERSAL LSS 300-2110 PHOTOELECTRIC LASER SCANNER EXCELLENT USED CONDITION
GENERAL ELECTRIC TED113020 CIRCUIT BREAKER 1 POLE 20 AMP 277VAC NEW NO BOX
MOORE INDUSTRIES ACX/0-5A/4-20MA/12-42DC-EM-RF-FA CURRENT TRANSMITTER USED
PROTECTION CONTROS DC MICROAMPERES PANEL METER NEW CONDITION / NO BOX
EMECANIQUE LB1 LC03M08 OVERLOAD PROTECTION MODULE THERMAL/MAGNETIC TRIP NNB
EMECANIQUE LB1 LB03P07 INTEGRAL STARTER OVERLOAD MODULE 1.6-2.5A NEW NO BOX
BUSSMANN FBP 500 SEMICONDUCTOR FUSE 500A 700V NEW CONDITION / NO BOX
BUSSMANN FRN-R-8 FUSETRON TIME DELAY FUSES 8A 250V (SET OF 3) NEW NO BOX
BUSSMANN FRN-R 100 FUSETRON TIME DELAY FUSE 100A 250VAC NEW CONDITION NO BOX
LITFUSE FLNR 200 ID INDICATOR FUSE 200A 250V TIME DELAY CLASS RK5 NEW NO BOX
LAWSON FLNR 200 IDL WINDOCATOR FUSE 200A 250V TIME DELAY CLASS RK5 NEW NO BOX
LAWSON FLNR 70 IDL WINDOCATOR FUSES 70A 250VAC TIME DELAY CLASS RK5 SET OF 3 NNB
LAWSON FLNR 90 IDL WINDOCATOR FUSES 90A 250VAC TIME DELAY CLASS RK5 SET OF 3 NNB
LITFUSE L25S 300A POWR-GARD SEMICONDUCTOR FUSE 300A 250VAC NEW NO BOX
BUSSMANN JKS-40 LIMITRON FAST ACTING FUSE 40A 600 VAC NEW CONDITION / NO BOX
BUSSMANN ALS 500 FUSE 500A 125VAC NEW CONDITION / NO BOX
LAWSON FLNR 300 IDL WINDOCATOR FUSE 300A 250VAC TIME DELAY CLASS RK5 NEW NO BOX
HUBBELL 45115 VARILOAD TWIST-LOCK CONNECTOR 5-WIRE 30A 250/600V NEW IN BOX
GOULD SHAWMUT 64011 FUSE BLOCK 600V-400A 1 POLE NEW CONDITION IN BOX
BUSSMANN LKS300 SUPER-LAG RENEWAL FUSE LINKS 300A 600V (SET OF 4) NEW IN BOX
HUBBELL 23034 HUBBELLOCK MALE CAP CONNECTOR 3-WIRE 20A 125V NEW IN BOX
HUBBELL 25403 HUBBELLOCK FEMALE RECEPTACLE 5-WIRE 250/600V NEW IN BOX
HUBBELL 2515 TWIST-LOCK FLANGED INLET 20A 5-WIRE GRD. 120/208V NEW IN BOX
NORDSON CR6-E52951 HEATER CARTRIDGE 120V 130W 3/8" X 3-1/4" NOS CONDITION
FERRAZ SOCOMEC 2411 3F02 MANUAL MOTOR CONTROLLER SWITCH NEW CONDITION IN BOX
SIEMENS Q350 CIRCUIT BREAKER 50 AMP 3 POLE 240VAC NEW CONDITION NO BOX
GOULD SHAWMUT 69283 POWER DISTRUBUTION BLOCK 3 POLE 600V NEW CONDITION NO BOX
ALLEN BRADLEY 1492-CB1G020 CIRCUIT BREAKER 2A 1 POLE 277VAC NEW IN BOX
BOLTSWITCH BF-3-2 BLOWN FUSE DETECTOR EXCELLENT USED CONDITION
SQUARE D FAL220301202 MOLDED CASE CIRCUIT BREAKER 240V 30AMP 2 POLE
BUSSMANN 2788-3 FUSE BLOCK NEW CONDITION / NO BOX
EFECTOR IN5374 INDUCTIVE PROXIMITY SWITCH/SENSOR 10-36VDC 2MM RANGE NEW IN BOX
CUTLER HAMMER 9902A-6501 SENSOR DEMONSTRATOR NEW CONDITION IN BOX
GOULD SHAWMUT 67052 POWER DISTRUBUTION BLOCK 2 POLE 600V NEW IN BOX
BANNER SM312F GLASS FIBER OPTIC INFRARED SENSOR 25620 NEW CONDITION IN BOX
UNIVERSAL TRIAD C340SI277RH COMPACT LIGHTING BALLAST 277V NEW CONDITION NO BOX
TURCK FCS-N1/2A4P-ARX-B1151 FLOW CONTROL SENSOR NEW CONDITION IN BOX
NSK 7922CTRDULP4Y SINGLE ROW SUPER PRECISION ANGULAR CONTACT BALL BEARING NIB
NSK 7922A5TRDULP4Y SINGLE ROW SUPER PRECISION ANGULAR CONTACT BALL BEARING NIB
LM SERVO CONTROLLER BOARD R3.0B97/01/22 04-773-1-33 NEW CONDITION / NO BOX
COOPER BEARINGS 02BCP215GR SPLIT PILLOW BLOCK ROLLER BEARING 2-15/16" BORE NNB
PHD 15342-1-7001 PNEUMATIC FINGER TYPE GRIPPER NEW CONDITION / NO BOX
STAUBLI RM137 EA STAINLESS HYDRAULIC DISCONNECT COUPLING NEW CONDITION IN BOX
ALLEN BRADLEY 199-FSMA9 COIL MOUNT SURGE SUPPRESSOR NEW CONDITION IN PACKAGE
ALLEN BRADLEY 800T-N2 EXTENDED HEAD PUSHBUTTON LOCKING ATTACHMENT NEW IN BOX
PARKER PS924P 15F GRADE 6 REPLACEMENT ELEMENT KIT NEW CONDITION IN BOX
ALLEN BRADLEY PHOTOSWITCH 42GRL-9003-QD1 TRANS BEAM LIGHT SOURCE NEW IN BOX
UNITED ELECTRIC J400-555 PRESSURE SWITCH 0-100 PSI NEW CONDITION / NO BOX
REXROTH R060202010 LINEAR BALL BUSHING 20 X 32 X 45MM NEW CONDITION IN BOX
MCGILL 24AFC2448 PRECISION AIRCRAFT NEEDLE ROLLER BEARING 1-1/2"ID 3"OD NEW