MHD093B-035-PGO-AA現貨
TR201200對于空間受限應用,機器人設計人員還可以選用內置了微控制器和內存的加速度傳感器,通過定制軟件構建微小的系統。由于這些傳感器通常無需其它處理器便能連接其它傳感器,因此經常被稱為傳感器集線器。例如,飛思卡爾D3604-60001提供3x3-mm三軸加速度傳感器和帶有14KB閃存和1.5KBRAM的32位微控制器。當機器人的末梢或手臂部分需要安放傳感器時,飛思卡爾TRICONEX 3664和其它類似器件就非常有用,因為機器人的末梢或手臂部分的空間非常狹小。另一個應用是設計精致小巧的可穿戴式機器人系統,甚至用于內窺鏡檢查醫(yī)療應用的可吞咽機器人膠囊。
2、從系統結構來說:
PLC與DCS的基本結構是一樣的。PLC發(fā)展到今天,已經全面移植到計算機系統控制上了,傳統的編程器早就被淘汰。小型應用的PLC一般使用觸摸屏,大規(guī)模應用的PLC全面使用計算機系統。和DCS一樣,控制器與IO站使用現場總線(一般都是基于RS485或RS232異步串口通訊協議的總線方式),控制器與計算機之間如果沒有擴展的要求,也就是說只使用一臺計算機的情況下,也會使用這個總線通訊。但如果有不止一臺的計算機使用,系統結構就會和DCS一樣,上位機平臺使用以太網結構。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更加分散化以外,特別重要的是儀表。FCS在國外的應用已經發(fā)展到儀表級??刂葡到y需要處理的只是信號采集和提供人機界面以及邏輯控制,整個模擬量的控制分散到現場儀表,儀表與控制系統之間無需傳統電纜連接,使用現場總線連接整個儀表系統。(目前國內有橫河在中海殼牌石化項目中用到了FCS,儀表級采用的是智能化儀表例如:EJX等,具備先進的控制水準)。
○如何正確對待PLC和DCS
我個人從不強調PLC和DCS之間孰優(yōu)孰劣,我把它們使用了一個新名詞“控制類產品”。我們提供給用戶的是適合用戶的控制系統。絕大多數用戶不會因為想使用一套DCS而去使用DCS,控制類產品必須定位在滿足用戶的工藝要求的基礎之上。其實提出使用DCS還是PLC的用戶大抵是從沒接觸過自控產品或有某種特殊需求的。過分強調這個東東只會陷入口舌之爭。
從PLC與DCS之間的區(qū)別和共同之處我們了解了控制類產品的大抵情況。注意,作為專業(yè)人士,我們自己不要為產品下PLC還是DCS的定義,自己的心理上更不能把產品這樣來區(qū)別對待。
ACCURAY 067455-004 DISPLAY ACCURAY 067455004 MAKE OFFER
Accuray MCC/IFCC I/F, part # 013509 REV: J PCB
Accuray 67461-002 67461002 PC Board
Accuray 69242-002 69242002 PC Board
Accuray 64844-002 64844002 PC Board
Accuray 64811-002 64811002 PC Board
INDUSTRIAL NUCLEONICS ACCURAY AD-9-055109-30?269 727622008 55169-30269 PCB CIRCUI
INDUSTRIAL NUCLEONICS ACCURAY 1780-52 89-69-0458 PCB CIRCUIT BOARD / CARD / MODU
INDUSTRIAL NUCLEONICS ACCURAY 2H 245855 PCB CIRCUIT BOARD / CARD / MODULE - USED
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INDUSTRIAL NUCLEONICS ACCURAY 61461-32438 PCB CIRCUIT BOARD / CARD / MODULE - US
INDUSTRIAL NUCLEONICS ACCURAY 69-00-8052 PCB CIRCUIT BOARD / CARD / MODULE - USE
Actus Power AC Servo Controller NPSA-104MU-IP1 USPP NPSA104MUIP1 Pak 3PH 220V
ACTUS POWER NPSA-103MU-E4C?SA USPP NPSA103MUE4CSA
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Actus Power AC Servo Controller NPSA-102MU-E9B?S USPP NPSA102MUE9BS Pak 3PH 220V
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ACTUS POWER NPSA-2.5NN-40E?3 USPP NPSA25NN40E3
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Actus Power AC Servo Controller NPSA-2.5NN-60-?E1 USPP NPSA2.5NN60E1 Pak 1-PH/3PH
Actus Power AC Servo Controller NPA-20NN-50-E8? USPP NPSA20NN50E8 Pak 1-PH/3PH
ACTUS POWER NPSA-2.5-64 NSPP NPSA2564
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ACTUS POWER NPSA-20-54 USPP NPSA2054
(AS01) NPSA-ZMTA-201A NIKKI DENSO ACTUS-MINI POWER USED WORKING
(AS01) NPSA-ZMTA-401A NIKKI DENSO ACTUS-MINI POWER USED WORKING
(AS01) NPSA-ZMTA-401A?E NIKKI DENSO ACTUS-MINI POWER USED WORKING
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ACTUS POWER NPSA-103MU-EIB?S/1680336B USPP NPSA103MUEIBS1?68
ACTUS POWER NPSA-2.5-64 supply NPSA2564
MHD093B-035-PGO-AA
APC AP7941 Rack PDU LOT OF 10, Switched, Zero U, 30A, 200/208V, (21)C13 & (3)C19
APC SURT10000XLT Smart-UPS RT 10000 VA 208V 240V UPS
AP5808 17" Rack LCD Console American Power Conversion-APC
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APC AP5808 17 Rack LCD Console
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APC AP5719 Rackmount LCD AP5719
SURTA2200RMXL2?U 2200VA Smart-UPS RT RM 120 American Power Conversion-APC
APC Matrix 5000 MX5000IU
APC Smart-UPS X 1500 VA Tower/Rack Mountable UPS SMX1500RM2UNC
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ABB 610013G5 PC Bard TAI/APC Terminal Block & Conn. Set 5761806-0D 61001395
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GAUI 500X Quad Flyer Quad copter GU-INS GPS Light Combo 222007APC
MHD093B-035-PGO-AA
DIXSON AMETEK DC AMPERS METER BW051P BWVRR2RHY1MDLX?BX02
Ametek Power Instruments RPM Meter
Ametek Drexelbrook Sensing Element 700-0202-002
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USG Ametek Gauge 4-1/2" Liquid Filled
AMETEK FIG # P1408 SPEC # 044585 PRESSURE GAUGE GUAGE GAGE SIZE 3" FACE 0-1000PS
Ametek Lamb Vacuum Cleaner Motor 116309-00
Ametek Universal Thru-Flow Vacuum Motor 120V 1Ph New
ENFM 160 PSI Liquid Filled Pressure Gauge, Ametek/TCI Division
Ametek Pressure Gauge 1/2"NPT SS V1929 / 1929
Ametek / USG Pressure Gauge Arc-Loc 0-160 psi 4-1/2"
Ametek 1726 Dual Function Digital Tachometer
Ametek / USG Pressure Gauge Arc-Loc 0-300 psi, 4-1/2"
Lamb Ametek Vacuum Cleaner Motor 119400-00
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AMETEK MODEL 1535 STAINLESS PRESSURE GAUGE NIB
NEW AMETEK 300 PSI SOLFRUNT PRESSURE GAUGE 1982 300
Ametek Pressure Gauge Gage 2-1/2" 2000-PSI 1/4NPT NEW
New Lamb Ametek 116378 Vacuum Motor ; 2-stage, 4.3 inch, 120 volt MADE IN USA
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Ametek Brushless Motor Controller With Heatsink 48070-01
*Ametek 1903 200psi
Ametek 116565-00 Blower / Vacuum Motor
118173-73 220volt Power Nozzle Motor, Ametek Lamb
4 NEW NIB AMETEK/USGAUGE PRESSURE GAUGE 088703 30-0-150 1/8" ANPT 2-1/2" FACE
AMETEK TRANSMITTER PRESSUR SYNCHRO 26VOLTS 0-100PSI MS28131 ST-106AG
AMETEK LAMB 117135-00 VACUUM MOTOR / BLOWER MOTOR NEW
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AMETEK ROTRON FAN 28VDC 2.10AMPS 5000RPM 85MAX AMB
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Ametek USG 160 PSI 4''
Ametek USG 2-1/2" Dia Pressure Gauge P1555LX (Lot of 2)
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MHD093B-035-PGO-AA