UC850-0004現(xiàn)貨

質(zhì)量沒得說，價(jià)格不是問題
細(xì)節(jié)決定質(zhì)量，品質(zhì)決定銷量
保證，質(zhì)保一年
千款庫存產(chǎn)品，讓您不敢想象
多種不同產(chǎn)品，詢您所需

2、從系統(tǒng)結(jié)構(gòu)來說:
PLC與DCS的基本結(jié)構(gòu)是一樣的。PLC發(fā)展到今天，已經(jīng)全面移植到計(jì)算機(jī)系統(tǒng)控制上了，傳統(tǒng)的編程器早就被淘汰。小型應(yīng)用的PLC一般使用觸摸屏，大規(guī)模應(yīng)用的PLC全面使用計(jì)算機(jī)系統(tǒng)。和DCS一樣，控制器與IO站使用現(xiàn)場總線（一般都是基于RS485或RS232異步串口通訊協(xié)議的總線方式），控制器與計(jì)算機(jī)之間如果沒有擴(kuò)展的要求，也就是說只使用一臺計(jì)算機(jī)的情況下，也會(huì)使用這個(gè)總線通訊。但如果有不止一臺的計(jì)算機(jī)使用，系統(tǒng)結(jié)構(gòu)就會(huì)和DCS一樣，上位機(jī)平臺使用以太網(wǎng)結(jié)構(gòu)。這是PLC大型化后和DCS概念模糊的原因之一。
3、PLC和DCS的發(fā)展方向:
小型化的PLC將向更專業(yè)化的使用角度發(fā)展，比如功能更加有針對性、對應(yīng)用的環(huán)境更有針對性等等。大型的PLC與DCS的界線逐步淡化，直至完全融和。
DCS將向FCS的方向繼續(xù)發(fā)展。FCS的核心除了控制系統(tǒng)更加分散化以外，特別重要的是儀表。FCS在國外的應(yīng)用已經(jīng)發(fā)展到儀表級。控制系統(tǒng)需要處理的只是信號采集和提供人機(jī)界面以及邏輯控制，整個(gè)模擬量的控制分散到現(xiàn)場儀表，儀表與控制系統(tǒng)之間無需傳統(tǒng)電纜連接，使用現(xiàn)場總線連接整個(gè)儀表系統(tǒng)。(目前國內(nèi)有橫河在中海殼牌石化項(xiàng)目中用到了FCS,儀表級采用的是智能化儀表例如:EJX等，具備先進(jìn)的控制水準(zhǔn))。
○如何正確對待PLC和DCS
我個(gè)人從不強(qiáng)調(diào)PLC和DCS之間孰優(yōu)孰劣，我把它們使用了一個(gè)新名詞“控制類產(chǎn)品”。我們提供給用戶的是適合用戶的控制系統(tǒng)。絕大多數(shù)用戶不會(huì)因?yàn)橄胧褂靡惶譊CS而去使用DCS，控制類產(chǎn)品必須定位在滿足用戶的工藝要求的基礎(chǔ)之上。其實(shí)提出使用DCS還是PLC的用戶大抵是從沒接觸過自控產(chǎn)品或有某種特殊需求的。過分強(qiáng)調(diào)這個(gè)東東只會(huì)陷入口舌之爭。
從PLC與DCS之間的區(qū)別和共同之處我們了解了控制類產(chǎn)品的大抵情況。注意，作為專業(yè)人士，我們自己不要為產(chǎn)品下PLC還是DCS的定義，自己的心理上更不能把產(chǎn)品這樣來區(qū)別對待。

ADEPT TECH 10330-00500 NSPP 1033000500
ADEPT TECH 10300-1600 USPP 103001600
ADEPT TECH 10332-00500 REV A PC BOARD VJ1 CARD *USED*
One-day shipping available
ADEPT TECH 10300-11200 USPP 1030011200
ADEPT TECH 10332-22000 USPP 1033222000
ADEPT TECH 10310-70200 USPP 1031070200
ADEPT TECH 10310-61210 USPP 1031061210
ADEPT TECH 10330-00500 USPP 1033000500
ADEPT TECH 10332-00505 USPP 1033200505
ADEPT TECH 133 USPP 133
ADEPT TECH 10154-66100 USPP 1015466100
ADEPT TECH 10300-15520 NSFP 1030015520
ADEPT TECH 10300-15200 NSPP 1030015200
ADEPT TECH 10332-11400 NSPP 1033211400
ADEPT TECH 90332-00380 NSFP 9033200380
ADEPT TECH MI6E USPP MI6E
Adept Tech 10330-11350 or 30330-11351 #7625
ADEPT TECH 90332-48050 NSFP 9033248050
ADEPT TECH 10330-10200 USPP 1033010200
ADEPT TECH 10330-10250 USPP 1033010250
ADEPT TECH 10332-21000 NSFP 1033221000
ADEPT TECH 10330-00180 PC BOARD DUAL B AMP REV. P3
ADEPT TECH 10300-15100 USPP 1030015100
ADEPT TECH 10300-15500 USPP 1030015500
ADEPT TECH 10300-15520 USPP 1030015520
ADEPT TECH 90332-00380 NSPP 9033200380
ADEPT TECH 10300-15200 USPP 1030015200
ADEPT TECH 10332-11410 USPP 1033211410
ADEPT TECH PN# 30330-12350 VME SIO MODULE REV. B
ADEPT TECH 10332-00712 USPP 1033200712
ADEPT TECH 10300-15400 USPP 1030015400

UC850-0004

AMETEK AIR VOLUME CONTROL
Ametek Mechanical Force Gauge LKG-2 with case
AMETEK PRESSURE GAUGES VACUUM V500 1/4"LM
NEW AMETEK VACUUM GAUGE 0 TO 30 INCHES Hg 1X583
AMETEK DREXELBROOK 506-6000 LCS POINT LEVEL CNTL MANUAL
Ametek T-645 Reservoir for T-620 Hydraulic Hand Pump
Ametek 2-Volt 9-18 Volt Gauge 0A0D40 Auto/Marine NGI 2 Blk
Lot of 3, Panalarm Ametek Relay 70-TCF1-12 UNUSED
AMETEK / M & G DIVISION 316 USED TYPE SB STAINLESS STEEL DIAPHRAGM 316
AMETEK HUNTER L-20M MECHANICAL GAGE
* AMETEK VACUUM MOTOR/BLOWER, 2M425
Ametek Tachometer/Pro?cess Time Indicator (LOC-L3)
AMETEK DIXSON TACHOMETER 0-3500 RPM W/HOUR METER24V NEW
Ametek Suspended Electrode Lot of 2
RILEY AMETEK PANALARM 50-F1 RELAY 24VDC 24V 24 VOLT VDC
AMETEK USG 171732AGL GAUGE 1/4 NPT NEW 5000PSI
Ametek RO-3167 Reverse Osmosis System Membrane 24Gpd Water Filter
US GAUGE AMETEK 3" PRESSURE TEST GAUGE 0 - 20 PSI
Ametek 115757- P Vacuum Motor
Ametek Mini jammer blower motor 150016-00
AMETEK WINDJAMMER BLOWER MOTOR 1-3/4" FILTER 551692
NEW AMETEK SOLFRUNT 1980 PROCESS GAUGE, 30-0-60 PSI
Ametek Lamb 116311-00 Vacuum Cleaner Motor Brushes
USG AMETEK 1-1/2" P500K 60 PSI 1/8 NPT CBM GAUGE.
AMKASYN KU-40-1 USPP KU401
AMKASYN 45739946-71876?4 USPP 45739946718764
AMK AMKaSYN AN40 Power Supply Module #6881LR
AMK AMKASYN AZ40 Drive Nr.44457-9922-?586865
AMK/AMKASYN 45620-9811-553?760 INVERTER DRIVE ***XLNT***
AMK/AMKASYN 45621-0042-745?173 INVERTER DRIVE ***XLNT***
APC PDUM160H-B Symmetra PX Battery Enclosure tested spare
APC SYCF40KF USPP SYCF40KF
APC SYMMETRA SY16K UPS SYSTEM SY16kVA Refurbished
Lucent ADAX APC7 SS7 Controller 2x 500Mhz Xeon Server
Snap Tool Box
APC ET41150 USPP ET41150
1/6 Scale Custom Handmade All Metal M113 APC Armored Personel Vehicle Hot Toys
Enlarge
APC power distribution cabinet - 80 kW Mfg. Part: 0G-PD80G6FK1-M?1
APC SYAF8KRMT Symmetra LX 8kVA N+1 Power Array Cabinet AC 208/240 V
APC SYSW40KF USPP SYSW40KF
New AMD Universal Interrupt Controller PN# AM9519APC

UC850-0004

ACCURAY 083892002 NSPP 083892002
ACCURAY KEYBOARD DISPLAY MODULE CIRCUIT CONTROL CIRCUIT CARD BOARD 59045
ACCURAY 1-061551-002 USPP 1061551002
ACCURAY 9-085158-001 SCANNER CONTROL PCB PRINTED CIRCUIT BOARD CARD MODULE 51992
ACCURAY HONEYWELL 085345-001 OAD SCANNER CONTROL MODULE REVISION REV C 59006
ACCURAY 64811-002 USPP 64811002
ACCURAY 64860-002 USPP 64860002
ACCURAY 9-064856-001 POWER FAILSAFE MODULE CARD BOARD 58668
ABB ACCURAY 1-084902-001 REV CB TEST PANEL MODULE CARD BOARD 58734
ACCURAY 2-085155-001 PC PCB CONTROL PRINTED CIRCUIT BOARD MODULE CARD 58690
ACCURAY 3-083142-001 SCANNER CONTROL BOARD CARD MODULE PCB 51909
ACCURAY 062798-002 NSFP 062798002
ACCURAY MM-C-100298-58?9 FRONT DISPLAY KEYPAD MODULE CONTROLLER BOARD PLC 54306
ACCURAY 082132-001 082133-001 SCANNER PCB PC CONTROL CIRCUIT BOARD MODULE 59052
ACCURAY 059092-014 NSPP 059092014
ACCURAY BPNL150A-003 KB150X CONTROL DISPLAY PANEL CONTROLLER MODULE 58676
ABB ACCURAY 8-061594-003 SSI PCB CIRCUIT BOARD MODULE CARD 56993
ACCURAY 773863004 5-053789-001 1.5IN LED DEDICATED PROCESS DISPLAY MODULE 58622
ACCURAY 3-082144-001 605696005 DISPLAY MODULE BOARD CARD 58623
ACCURAY 5-053788-001 1.5IN LED DEDICATED PROCESS DISPLAY MODULE 58671
ACCURAY 2-064810-002 OPERATOR INTERFACE LAMP DRIVER MODULE CARD BOARD 58343
ACCURAY 2-064810-002 OPERATOR INTERFACE LAMP DRIVER MODULE CIRCUIT BOARD 58675
ACCURAY 062798-003 NSFP 062798003
ACCURAY 60132860 BPNL1508-001 SECURITY CONTROL DISPLAY PANEL MODULE 58807
AccuRay 9-085159-001 Rev. BB PPC Board
ACCURAY 083898-010 USPP 083898010
ACCURAY 1-61552-002 61552002 MPR MODULE BOARD SCANNER 55102
ACCURAY 083898-011 USPP 083898011
ACCURAY 8-085217-001 INPUT OUTPUT I/O PRINTED PC CIRCUIT BOARD MODULE CARD 58647
ACCURAY 5-053788-001 1.5IN LED DEDICATED PROCESS DISPLAY MODULE 58672
ACCURAY 2-064810-002 OPERATOR INTERFACE LAMP DRIVER MODULE CARD BOARD 58674

UC850-0004