AB 1756-IB16D/A 模塊A 全新原裝
AB 1756-IB16D/A 模塊A 全新原裝
AB 1756-IB16D/A 模塊A 全新原裝
1．輸入/輸出單元
輸入/輸出單元通常也稱I/O單元或I/O模塊，是PLC與工業生產現場之間的連接部件。
PLC通過輸入接口可以檢測被控對象的各種數據，以這些數據作為PLC對被控制對象進行控制的依據；同時PLC又通過輸出接口將處理結果送給被控制對象，以實現控制目的。
由於外部輸入設備和輸出設備所需的信號電平是多種多樣的，而PLC內部CPU的處理的信息只能是標準電平，所以I/O接口要實現這種轉換。
I/O接口一般都具有光電隔離和濾波功能，以提高PLC的抗幹擾能力。另外，I/O接口上通常還有狀態指示，工作狀況直觀，便於維護。
PLC提供了多種操作電平和驅動能力的I/O接口，有各種各樣功能的I/O接口供用戶選用。I/O接口的主要類型有：數字量（開關量）輸入、數字量（開關量）輸出、模擬量輸入、模擬量輸出等。
常用的開關量輸入接口按其使用的電源不同有三種類型：直流輸入接口、交流輸入接口和交/直流輸入接口。
常用的開關量輸出接口按輸出開關器件不同有三種類型：是繼電器輸出、晶體管輸出和雙向晶閘管輸出。
繼電器輸出接口可驅動交流或直流負載，但其響應時間長，動作頻率低；而晶體管輸出和雙向晶閘管輸出接口的響應速度快，動作頻率高，但前者只能用於驅動直流負載，後者只能用於交流負載。
PLC的I/O接口所能接受的輸入信號個數和輸出信號個數稱為PLC輸入/輸出（I/O）點數。I/O點數是選擇PLC的重要依據之一。當係統的I/O點數不夠時，可通過PLC的I/O擴展接口對係統進行擴展。
2．通信接口
PLC配有各種通信接口，這些通信接口一般都帶有通信處理器。
PLC通過這些通信接口可與監視器、打印機、其它PLC、計算機等設備實現通信。
PLC與打印機連接，可將過程信息、係統參數等輸出打印；與監視器連接，可將控制過程圖像顯示出來；與其它PLC連接，可組成多機係統或連成網絡，實現更大規模控制。
與計算機連接，可組成多級分布式控制係統，實現控制與管理相結合。遠程I/O係統也配備相應的通信接口模塊。
3．智能接口模塊
智能接口模塊是一獨立的計算機係統，它有自己的CPU、係統程序、存儲器以及與PLC係統總線相連的接口。
它作為PLC係統的一個模塊，通過總線與PLC相連，進行數據交換，並在PLC的協調管理下獨立地進行工作。
PLC的智能接口模塊種類很多，如：高速計數模塊、閉環控制模塊、運動控制模塊、中斷控制模塊等。
PARKER VERIFLO 45700818PAEV SQ420E502PFS8MMEV VALVE
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PARKER VERIFLO SQ60502PVCRMMPMEV,4500237EV REGULATOR MILLIPORE 01-1090-M FREE
PARKER VERIFLO SQ60502PVCRMMTHEV REGULATOR
PARKER VERIFLO SQ60502PVCRMMTHPM(EV) REGULATOR
PARKER VERIFLO SQ60502PVCRMMTHPMEV REGULATOR
PARKER VERIFLO VALVE 45900480 SM930LPNCS202VESP PFA SEAT LOT OF 4
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PARKER VERIFLOW VALVE 930Y2NO/NCFSFFFB 316L 45700504 FREE SHIP
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PATLITE SIGNAL DISPLAY GM-1000R3-W TESTED WORKING FREE SHIP
PATLITE SIGNAL DISPLAY GM-1200R3-W TESTED WORKING CASE BROKEN NOT CLEAN
PATLITE SIGNAL DISPLAY GM-600TCNS TESTED WORKING FREE SHIP
PATLITE SIGNAL DISPLAY GM-600TCNS TESTED WORKING FREE SHIP #1
PATLITE SIGNAL DISPLAY GSE-09TF WORKING
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PCB / CARD / 12150533A 12159513C
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PCB BOARD 110176 G4 FOR MKS BARATRON 128,128AA-00010B-S
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PCI-1713 REV A1 01-6 BOARD
PCI-1723 BOARD REV A1 01-4
PCI-1723 BOARD REV A1 02-2
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PCI-1750 REV A1 01-6 BOARD LOT OF 2
PCI-1750 REV.A1 01-8 BOARD
PCI-7200 REV.A3 BOARD
PCI-7296 005,51-12009-0A5O BOARD
PCI-7296 REV A3 BOARD
PCI-7296,0060 GP,51-12009-0A5O BOARD
PCI-8164 00B0 GP 51-12406-0A40 94V-0 T156-4123 BOARD
PCI-8S BACKPLANE BOARD WORKING
PCI-9111 HR 51-12251-0B20 BOARD
PCI-9114DG BOARD
PCI-DAS1200 REV.4 MULTIFUNCTION ANALOG AND DIGITAL I/O BOARD
PCL-727 12CH D/A OUTPUT CARD #1
PCL-727 12CH D/A OUTPUT CARD REV. A2 01-1 BOARD
PCL-727 12CH D/A OUTPUT CARD REV. A2 BOARD
PCL-733 32 CH ISOLATION DIGITAL INPUT REV.A1 BOARD
PCL-734 32 CH ISOLATION DIGITAL OUTPUT REV.A1 BOARD
PCL-812PG REV.B1 03-1 BOARD
PCL-818 SERIES REV.B1 02-1 PCL-818HD-B BOARD
PCL-839 3 AXIS STEPPING MOTOR CONTROL CARD
PDH260C 38122219 H 0202 BOARD
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Performance Technologies PT-SBS915 VME BOARD
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PFEIFFER BALZERS TPU 170 Turbo Pump
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PFEIFFER VACUUM COMPACT CAPACITANCE GAUGE, D-35614 ASSLAR CMR 262 #
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PFEIFFER VACUUM COMPACT PIRANI GAUGE D-35614 ASSLAR TPR265
PFEIFFER VACUUM D-35614 ASSLAR PKR 251 PTR26000 COMPACT FULL RANGE GAUGE WORKING
PFEIFFER VACUUM D-35614,TPR 280 PTR26950,KLA TENCOR 200-20613-000 AB FREE SHIP
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PFEIFFER VACUUM PF 123 225-X DN 25 ISO-KF
PFEIFFER VACUUM PF 129 243-X DN 40/25 KF
PFEIFFER VACUUM TPG 256A MEASUREMENT & CONTROLLER,PTG28760 WORKING FREE SHIP
PFEIFFER VACUUM TURBO MOLECULAR PUMP CONTROLLER DCU150 TESTED WORKING
PFEIFFER VACUUM TURBO PUMP TMU262 DN100 CF-F 3P TC100 CONTROLLER DCU150 WORKING
PFEIFFER VACUUM, D-35614 CMR 361 RANGE:1100mbar
PFEIFFER VACUUM, D-35614 CMR 362 RANGE:110mbar
PFEIFFER VACUUM, D-35614 IKR 251 PTR25500 COMPACT COLD CATHODE GAUGE
PFEIFFER VACUUM, D-35614 TPR 280 PTR26950A
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PHOENIX CONTACT POWER SUPPLY QUINT-BUFFER/24DC/20 & IDEC PS5R-SE24 TESTED FREE
PHOENIX CONTACT POWER SUPPLY QUINT-PS-100-240AC/24DC/10
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PILZ PLC MODULE - PSS DI2O T 16 INPUT_16 OUTPUT
PILZ PLC MODULE - PSS DI2O T EIN-AUSGABE 16E+16A
PILZ PLC MODULE - PSS DO S 32 DIGITAL OUTPUTS NO FRONT COVER
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PIO-9032B-SB BY I.O DATA BOARD
PIOIBM32/32 ADM-1038-1 BOARD
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