AB 1756-IF16 模塊 全新原裝
AB 1756-IF16 模塊 全新原裝
AB 1756-IF16 模塊 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。
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SHIBAURA TOKUDA PIRANI GAUGE TPG-1RC
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SHIBAURA VNC02 BOARD VNC0220 FREE SHIP
SHIMADEN CONVERTER CP2MD-4613-0
SHIMADEN CONVERTER CP2RT-1413-JK310C0
SHIMADEN PAC28P1-491-075-000010 REGULATOR
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SHIMADEN SR82 TEMPERATURE CONTROLLER SR82-1P-N-02-1166000 POWER ON TESTED
SHIMADEN SR82 TEMPERATURE CONTROLLER SR82-1V-N-02-1166000 POWER ON TESTED
SHIMADZU 262-78187-10V1 TURBO PUMP CABLE 10M TESTED WORKING FREE SHIP
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SHIMADZU TURBO-MOLECULAR PUMP TMC-203LM CONTROLLER EI-203M WORKING FREE SHIP #1
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SHIMADZU TURBO-MOLECULAR PUMP TMP-1303LMC-G1,EI-1303MD TESTED WORKING FREE SHIP
SHIMADZU TURBO-MOLECULAR PUMP TMP-203M-G1 CONTROLLER EI-203M WORKING FREE SHIP
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SHIMPO ABLE GEARHEAD REDUCER VRKF-5C-400/ RATIO 1:5
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SHIMPO-NIDEC ABLE REDUCER GEARHEAD NEVSC-5B-200-T2 RETIO 1:5
SHIMPO-NIDEC ABLE REDUCER VRKF-9C-400 RATIO 1: 9
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SHINAGAWA MODEL AK-30 VFF
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SHINDENGEN RF GENERATOR XR-PH0360L-C 2L80-000101-15 TESTED WORKING
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Shinko Twin VF Regulator C8-3VFT #1
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SHOP MEASURING MICROSCOPE TOPCON WITH TS-60
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SIEMENS 3~MOTOR 1FT6163-8WA76-8FG0-Z WITH BINDER
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SIEMENS 3RV1021-4AA10 AND SIEMENS 3RV1021-1HA10
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SIEMENS 6ES5 262-8MA12 CLOSED LOOP CONTROLLER
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SIEMENS ISKAMATIC B EU31/6FQ2531-0B BOARD#
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