咨詢熱線－－-17750626260
PLC的掃描工作方式與電器控制的工作原理明顯不同。電器控制裝置采用硬邏輯的并行工作方式，如果某個(gè)繼電器的線圈通電或斷電，那么該繼電器的所有常開(kāi)和常閉觸點(diǎn)不論處在控制線路的哪個(gè)位置上，都會(huì)立即同時(shí)動(dòng)作；而PLC采用掃描工作方式（串行工作方式），如果某個(gè)軟繼電器的線圈被接通或斷開(kāi)，其所有的觸點(diǎn)不會(huì)立即動(dòng)作，必須等掃描到該時(shí)才會(huì)動(dòng)作。但由于PLC的掃描速度快，通常PLC與電器控制裝置在I/O的處理結(jié)果上并沒(méi)有什么差別。

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廈門莫格電氣自動(dòng)化有限公司

張芳（銷售工程師）

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UNIPOWER TECHNA-CHECK ULTRA TRANSDUCER PWM325

HASTINGS REFERENCE PROXIMITY SENSOR DB-300A

NAMCO EE220-31920 ROTATABLE CYLINDER, NIB

ORION PERPHECT PH LOGR METER MODEL 310

FOXBORO PH TRANSMITTER W/ PH/ORP SENSOR 870ITCR-FXFNZ-7 105450

CSAT 530-C71 600 DPI ENCODER INCLUDING BRACKET, NNB

BANNER SMA91RQD Valu-Beam AC SCANNER RECEIVER, NNB

IFM EFECTOR OAH-CPKGT/US100 OA8517 PHOTOELECTRIC SENSOR, NIB

IFM IDC2050BARKA/LS?-100AK INDUCTIVE PROXIMITY SWITCH, NIB

DYNAPAR ROTARY ENCODER AI2500142B92F

CUTLER HAMMER EATON PROXIMITY SENSOR E57LAL30T111 NIB

WENGLOR SENSORIC PROXIMITY SENSOR D-88069 NNB

OPB 840W51 SLOTTED TRANSISTOR SWITCH

SKF VIBRATION SENSOR CMSS799LF

DELPHI TS10088 AIR TEMPERATURE SENSOR, NIB

ELECTRO SPEED SENSOR POSITION PROXIMITY SWITCH 4910 NNB

MSA CO CELL C025E/F SENSOR

WESTINGHOUSE TYPE GS GROUNDGARD SENSOR STYLE 3512C13H01

IFM PB5227 EFECTOR SENSOR NNB

DELPHI SS10222 SPEED SENSOR, NIB

DELPHI SS10259 SPEED SENSOR, NIB

SMC * SENSOR CABLE * D-B54

ASHCROFT TEMPERATURE CONTROLLER T424TS090 102185

SICK C 4000 24VDC STANDARD SAFETY LIGHT CURTAINS C40E-0303CA010

CUTLER-HAMMER CURRENT SENSOR 8257A68H01

KEYENCE EX-202 INDUCTIVE GUAGING SENSOR EX-200 SERIES

ELECTRO-SENSORS INC. 115VAC CONTROL BOARD SS-100 / 535-0063

KING SINGLE LINE VOLTAGE THERMOSTAT K601W NIB

BALLUFF 20-250V AC/DC PROXIMITY SENSOR BES-516-207-BO-?E-03*

FOXBORO I/A SERIES MAGEXPERT FLOW TRANSMITTER IMT96-PEADB10N-?AB ST-A

DELPHI SS10380 SPEED SENSOR, NIB

PRECISION DELAYED RESPONSE PHOTOCONTROL 480VAC 97-275 NIB

IFM EFFECTOR INFARED SENSOR OA0104 OAR-FKOA

DELPHI TS10035 TEMPERATURE SENSOR, NIB

DELPHI PS10073 POSITION SENSOR, NIB

EFECTOR INDUCTIVE PROXIMITY SWITCH IF0301 NIB IFA2004-ABOW/SL?/LS-100AK

IFM EFECTOR IDC2050BARKA/LS?-300BL INDUCTIVE PROXIMITY SENSOR

FISHERBRAND HYDROMETER NIB 11-520A 103847

DELPHI OXYGEN SENSOR ES10034 NIB

INGERSOLL-RAND TRANSDUCER 93939783

SICK OPTIC LUT-1440 18-30 VDC LUMIN SENSOR WITH LENS

TELEMECANIQUE PROXIMITY SENSOR XSA-V12801

MICROSCAN FIS-0520-0002 CLASS II BAR CODE SCAN HEAD MS-520

DELPHI TS10166 AIR TEMPERATURE SENSOR, NIB

CARRIER 14FLA@120/240V TEMPERATURE CONTROL SWITCH HH 22HB 067 NIB

TELEMECANITUE PROXIMITY SWITCH XSA V12801

ALLEN BRADLEY BULLETIN 872C INDUCTIVE PROXIMITY SENSOR SEALED

COLT INDUSTRIES SONAC 220 115/230VAC LEVEL SWITCH

IPF INFRARED SENSOR MZ R9 01 74 NIB

PEPPERL+FUCHS PHOTOELECTRIC SENSOR 087993

FOXBORO TEMPATURE TRANSMITTER B0300AP

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MIDDEX ELECTRONIC SENSOR D-7201

SMC * SENSOR * D-A80

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SICK OPTIC BARCODE SCANNER CLV490-3010 *NIB*

IFM ELECTRONIC PRESSURE SENSOR PL2654 NNB

BALLUFF DATASENSOR POWER SUPPLY BOS SR21-AH

IFM ELECTRONIC TT3050 TEMPERATURE SENSOR EFECTOR

TAMAGAWA SEIKI 3.5V 3000HZ BRUSHLESS RESOLVER, TS530N33E9

STI * MINISAFE SAFETY CURTAIN TRANSMITTER COSMETIC DEMAGE * MS4432X

CUTTLER-HAMMER PROXIMITY SENSOR E57-30LE40-AA

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IFM EFECTOR 100 INDUCTIVE SENSOR IFR200 IFK3004BBPKG/AM?/SC/US104DPS NIB

NAMCO EE510-92540 WFI HammerHead 9-WAY CONFIGURABLE PROXIMITY SENSOR, NIB