FW366R 數字信號輸入卡


現貨、英維思TRICONEX、西屋、西門子停產卡件、模塊！特多優(yōu)惠等您來?。?/span>

PLC最重要的特征是“掃描”。PLC上電后，自動重復執(zhí)行程序掃描和I/O掃描，即輸入采樣、用戶程序執(zhí)行和輸出刷新三個階段。完成上述三個階段稱作一個掃描周期。在輸入采樣階段，PLC以掃描方式依次地讀入所有輸入狀態(tài)和數據，并將它們存入I/O 映象區(qū)中相應的單元內，輸入采樣結束后，轉入用戶程序執(zhí)行和輸出刷新階段，即使輸入狀態(tài)和數據發(fā)生變化，I/O 映象區(qū)中的相應單元的狀態(tài)和數據也不會改變。在用戶程序執(zhí)行階段，PLC按由上而下、先左后右的順序依次地掃描程序（梯形圖），根據邏輯運算的結果，刷新RAM存儲區(qū)或I/O映象區(qū)對應單元的狀態(tài)。在輸出刷新階段，根據I/O映象區(qū)內對應的狀態(tài)和數據刷新所有的輸出鎖存電路，再經輸出電路驅動相應的外設，這時，才是PLC 的真正輸出?？梢姡捎肞LC程序控制的過程和結果與繼電器邏輯回路是有區(qū)別的，特別是涉及到梯級的次序、脈沖信號的捕捉等，與PLC的掃描原理是密切相關的。實踐中，大量的程序問題均源于此，常常會出現不可思議的結果。因此，設計PLC程序，必須精通PLC的基本原理。

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廈門仲鑫達自動化設備有限公司
歐陽英（銷售經理）
移動電話：13394057292
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Q Q ：370848070 , 2687338778
地址；廈門思明區(qū)湖濱東路湖光大廈8樓A單元
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主要優(yōu)勢產品：
【..美國..英維思 Invensys FOXBORO I\A系統(tǒng), Triconex ESD系統(tǒng)】
【..美國.. .AB ..1756系列,1785系列,1746系列,1747系列,1771系列】
【..瑞士.. .ABB.. 機器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU】
【..法國....施耐德.. 140莫迪康昆騰系列處理器,內存卡,電源模塊等?！?br /> 【..德國...西門子..Siemens MOORE,S5,S7,6DD等】
【..美國...通用電氣..GE..IC693/IC697系列】
【..美國 ...Westinghouse（西屋）： OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系統(tǒng)備件。】
【..德國...Bosch Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅動模塊等?！?br /> 【..美國... Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列?！?/p>

Reliance Electric 0-57010 Dancer Follower Kit ! ?!

Flowserve 89983 Pneumatic Mechanical Seal Kit ! !

Honeywell 4302801 Junction Box Enclosure RAMPAC ! !
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Columbus McKinnon 264P65 Transformer ! ?!

Rex Manufacturing CE1000JK Transformer 1Ph 1000VA 60Hz ! ?!

International Rectifier ST330C16C1 Phase Control Thyristor ! ?!

Schraeder Bellows 4569-2000 Modular Lubricator 250psig AS IS ! ?!

GE Fanuc IC660TSS100K Terminal Assembly 115VAC 2A ! ?!

SoftNoze BSA-A-12-100-12?-H Right Angle Banking Screw Adapter 12mm x 100mm ! NEW!

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Consolidated XW-2-3/8 Thrust Bearing 3/8" ! !

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SIEMENS 6-GT2091-1CH50 CABLE ASSEMBLY CONNECTOR !?

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Western Digital WDAC1270-00F Hard Drive 270MB ! ?!

Numatics 152SS415K Solenoid Valve 120V 60HZ .09A ! ?!

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OMEGA PR-17-2-100-1/8?-9-E RTD Probe W/ Quick Disconnect

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Modicon DEP218/AS-BDEP-?218 Isolated Input Module 16Pt 115VAC ! ?!

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Norgren R08-000-RNM0 Pneumatic Regulator ! ?!

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Honeywell L414X-1027-2 Pressure Switch ! ?!

Square D 9012-GFW-1 Pressure Switch/Interrup?tor ! ?!

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Fisher/Rosemoun?t 67CFR-224 Pressure Regulator Filter Max 250psi ! !

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Allen Bradley 1794-CE3 Terminal Cable Extender 3FT ! ?!

Ferraz Mersen TRS35R Time Delay Fuse 35amp Box of 10 ! !

Beta Tech CC-TOOL-063-F20 Cable ! ?!

Microswitch 8LS125 Wobble Rod Limit Switch 480 VAC ! !

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Rosemount Analytical 381 22694-02 High Temperature pH Electrode Sensor ! !

Bryant BCI 8202 Vibratory Feeder Control Power Supply ! ?!

Allen-Bradley 1746-A13/B 13-Slot Chassis - IN CANADA !!

Sprecher + Schuh CEP7-EEGE Overload Relay 600V ! ?!

Savair C-G3-L-1570-6A Pneumatic Cylinder ! ?!

Festo LRMA-QS-4 Pressure Regulator ! !

Carbide Tools M42 End Mill Tool 3/16 L:1.020 ! !

Allen Bradley 800R-3HZ4R Pushbutton Enclosure ! !

Allen Bradley 140M-C2E-C10 Motor Protection Circuit Breaker 6.3-10A ! !

IFM IM8501 Inductive Proximity Sensor 10-55VDC ! !

Hoffman T-893599 Type 12/13 Wall Mount Enclosure ! ?!

Allen Bradley 800T-9TJZ Pushbutton Enclosure Series L ! ?!

Dodge 392121 Reducer Seal Kit ! !

Balluff BES-516-200-S21?250S Proximity Switch ! ?!

Allen Bradley 1321-3R4-D Line Reactor 4 Amp ! ?!

Boston Gear SD-1F6-SP-024 Infrared Sensor w/ Indicator 1W 20-264V 15-30VDC !?

SMC VQC4-LAL000 MY-DE Pneumatic 3-Port Valve Manifold ! ?!

Allen Bradley MSR123RT Safety Relay 24VDC ! ?!

Festo SMEO-4U-S-LED-2?4B Proximity Switch 3 Pin 12-27V ! !

Sick WT18-2P430 Photoelectric Proximity Switch 30V ! !

Bemag O100P480MS240M Transformer 240/480V ! !

Aladco 622501 Dual Check Valve 1/4 ! ?!

Transfab DL7123QG07 Transformer 600V 25VA ! ?!

Eaton 1273A-300 Photoelectric Thru-Beam Detector ! !

Theben TR610 Programmable Time Switch 250H 120V 60Hz ! !

Rexroth Directional Solenoid Valve 4WE6J61/EG24N9K?4?

Allen Bradley CE254C Coil 230-240V 60Hz for Starter or Contactor ! ?!

Allen Bradley 800T-16HG2KBAX Pushbutton Selector Switch Illumin. 2Position !NEW!

Robotron 454-0-0028-0 Firing Module ! ?!

Jakob Safety RT6-24VDC Safety Relay 24VDC ! !

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RJG T-30000 Transducer Quick Connect ! ?!

SMC MHL2-10D Pneumatic Gripper ! ?!

Honeywell Microswitch Photoelectric MHP-F33 ! !

WESTINGHOUSE FB3050S 50A 600V 3 Pole Circuit Breaker !

Kraus & Naimer C26 Heavy Pilot Duty Rotary Cam 600VAC ! ?!

Telcon MDA6 Isolating Amplifier 200mV ! ?!

Allen Bradley 140M-C2E-B16 Standard Motor Circuit Breaker 1-1.6A ! !

Allen Bradley 140-MN-0250 Manual Motor Starter ! !

Pilz PNOZ-X2-24V Safety Relay 24VAC/DC ! ?!

Pilz PNOZ-X2.1-2S Safety Relay 24VAC/DC ! ?!

ATI Master Discrete Module 19 Pin Block 9121-VB2-M ! WO

Turck B1M-NST-AN6X-H1?141/S34 Proximity Sensor ! !

Baumer Electric Sensor FUF050A2005 ! !

Brady Portable Thermal Labels PTL-43-439YL ! NIB !

Parker/Compumot?or 71-018303-35-B Motor Cable ! ?!

Arjay 9064D Level Alarm Series 9060 115V ! ?!

Phoenix Contact CM62-PS-120AC/1?0DC/1 Power Supply !?

Omron S82K-906 Power Supply 2.5 Amp 240V ! ?!

Potter Brumfield PM-17AY-24 Relay 24VDC ! ?!

Festo Proximity Switch SMTO-4-PS-S-LED?-24B ! !

Rosemount 2001853 High Purity Referece Cell ! !

Cutler Hammer EHD3060 Circuit Breaker 3-Pole 60A 480VAC ! ?!

Henry Ball Valve w/ Chained Cap 1-1/8" O.D. 900409 !NIB

Numatics 152SS400K000030 Solenoid Valve 12AMP 50-60 hz 110-120V ! ?!

Proface EXM-DMM8DRT EX Sink/Source Module 4PT 24VDC ! ?!

Superior Electric 116BU Variable Transformer 1 HP 50/60Hz ! ?!

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Seeka FR510 Fiber Optic Photo Sensor ! !

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SunX FX-A3R Fiber Optic Photo Sensor ! !

Mac 611B-11-611BA Regulated Pressure Valve ! ?!

Hammond 3 Phase Dry Type Line Reactor RI0003M22 600V 3A

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Fincor 105893101-C PC Board ! !

Generic 105623001 PC Board ! !

TCS D240 Line Isolator Converter 120V ! !

Square D 9001-KM1 Light Module 110-120V 30mm ! !

General Electric CR2820B125AA2 Pneumatic Time Delay Relay ! ?!

Square D 7001 KEO-02 DC Relay ! ?!

Crouzet 84-873-010 FW Phase Monitor 230V ! !
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