廈門(mén)鈦尼電氣有限公司
主營(yíng)產(chǎn)品: 電工電氣,工控設(shè)備,PLC |
廈門(mén)鈦尼電氣有限公司
主營(yíng)產(chǎn)品: 電工電氣,工控設(shè)備,PLC |
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參考價(jià) | 面議 |
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更新時(shí)間:2018-06-03 16:52:00瀏覽次數(shù):108
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MVME224A-3
MVME224A-3
3.2用于模擬量控制
模擬量,如電流、電壓、溫度、壓力等等,它的大小是連續(xù)變化的。工業(yè)生產(chǎn),特別是連續(xù)型生產(chǎn)過(guò)程,常要對(duì)這些物理量進(jìn)行控制。
作為一種工業(yè)控制電子裝置,PLC若不能對(duì)這些量進(jìn)行控制,那是一大不足。為此,各PLC廠家都在這方面進(jìn)行大量的開(kāi)發(fā)。目前,不僅大型、中型機(jī)可以進(jìn)行模擬量控制,就是小型機(jī),也能進(jìn)行這樣的控制。
PLC進(jìn)行模擬量控制,要配置有模擬量與數(shù)字量相互轉(zhuǎn)換的A/D、D/A單元。它也是I/O單元,不過(guò)是特殊的I/O單元。
A/D單元是把外電路的模擬量,轉(zhuǎn)換成數(shù)字量,然后送入PLC。D/A單元,是把PLC的數(shù)字量轉(zhuǎn)換成模擬量,再送給外電路。
現(xiàn)貨,現(xiàn)貨,降降降,火火火,火火火……
現(xiàn)貨,現(xiàn)貨,降降降,火火火,火火火……
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SQUARE D 150 AMP I LINE BUS PLUG 600 VAC 3 PHASE 3 WIRE
ICE CUBE INC ENCLOSURE AIR CONDITIONER 120 VAC 4.5 AMP
ANDOVER CONTROLS MODEL I2810 CONTROLLER
HONEYWELL ASSEMBLY NO: 51309355-502 DR4500 MAIN PR
SUNSINE 300 AC PHOTOVOLTAIC INVERTER MODULE S3-U-1-A
FISHER PROVOX COMMUNICATION INTERFACE CL7652X1-A2
HONEYWELL STAINLESS TRANSMITTER STG97L STG97LR
TOSHIBA EX40PLUS PROGRAMMABLE CONTROLLER EX40*4MARD
ALLEN BRADLEY INVIEW MESSAGE DISPLAY 100/240 VAC 1.0-0.
MTH 7-1/2 HP PUMP 208-230/460 3? 1745 RPM 1-1/2"X1-
MARSH 1/2" HAND OPERATED STENCIL MACHINE MODEL H
ALLEN BRADLEY CO-PROCESSOR 1785-05G
RED VALVE TYPE A PINCH VALVE 03-4706 4"
HONEYWELL DR4500A PROCESSOR CARD 30754999-503
MODICON 140-CRA-212-10 DIO DROP MB+ AC PS 140CRA21210
BALLUFF BESINDUCTIVE PROX SENSOR RPEA-3005P-PU-02
WILLIAMS AH030W20407R000 AIR HANDLER 2 HP 460 V
HENGSTLER INCREMENTAL ENCODER 0 533 531 0533531
REXROTH 5460041100 TRANSDUCER SHAPING AIR GEN #4
TOLEDO 9325-0031 MODULE M8141 ADALET XP ENCLOSURE
SIEMENS 3NE12250 SEMICONDUCTOR SITOR FUSE 200 AMP B
KUKU ROBOTIC ARM ZH6-1 0763 WRIST ASSEMBLY 6-KG
SQUARE D EHB34070 CIRCUIT BREAKER 70 AMP CIRCUIT BREAKE
ENDRESS & HAUSER PROMASS 63 TRANSMITTER 63MT08-ATF00B20
RELIANCE ELECTRIC RECTIFIER STACK ASSY. 86466-11R
CONTROL TECHNIQUES Eb-202 EPSILON BASE SERVO DRIVE
STEARNS BRAKE ASSY. 1087021H0ELF 460 VAC 1.125 BORE
ALLEN BRADLEY 1336 PLUS 11 SENSORLESS VECTOR VFD 7.5 HP
RJS INSPECTOR 3000 BARCODE SCANNER MISSING BATTERY COVE
WESTINGHOUSE DIRECTIONAL OVERCURRENT RELAY 115V 5A
SQUARE D QMB-FAW 100A CIRCUIT BREAKER ADAPTER W/ 20 AMP
SQUARE D QMB-FAW 100A CIRCUIT BREAKER ADAPTER WITH TWO
SQUARE D QMBS8536 MOTOR STARTERS WITH SIZE 0 8536SBO2 &
CASHCO ACTUATED LINE CONTROL VALVE POSITIONER SRI986DID
MITUTOYO ABS LINEAR SCALE W/ ENCODER 23" LONG MODEL
CRAFT SPLIT CYLINDRICAL BEARING 3-15/16 INCH S1BC31
GE 100 AMP MOTOR CONTROL BUCKET DISCONNECT 480 VAC 3 ?
SQUARE D Q432400 I LINE CIRCUIT BREAKER THERMAL MAGNETI
SQUARE D 51 KVA TRANSFORMER 460 HV 460Y/265 LV 51T145HD
OSRAM XENON SHORT ARC LAMP 2500 WATT XBO-2500/HS OF