6AV6645-0DD01-0AX1

分類(lèi)：
選擇深圳長(zhǎng)欣，選擇放心，售后無(wú)憂(yōu)
大量現(xiàn)貨，當(dāng)天順豐發(fā)貨！
了解產(chǎn)品更多詳細(xì)信息或購(gòu)買(mǎi)請(qǐng)撥打以下電話(huà)咨詢(xún)：
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聯(lián)系人:白工

電話(huà):18150087953 / 18005022138

Whatsapp/Wechat:+8618150087953 / +8618005022138

Email：[email protected]

描述

6AV6645-0DD01-0AX1

電子元器件的金屬引腳常有氧化物，氧化物導(dǎo)電性差，而且很難上錫，焊接前要把焊接處的金屬表面用橡皮擦打磨光潔。為使電子元器件引腳易于焊接，元件出廠時(shí)都是經(jīng)過(guò)表面處理的。對(duì)于氧化嚴(yán)重的元件，可用刀或砂紙來(lái)清除元件引腳上的氧化層。清除氧化層后在光潔的元件引線上鍍錫，使引線均勻地鍍上一層很薄的錫層。只有經(jīng)過(guò)認(rèn)真清潔和鍍錫后的電子元器件引腳，焊接之后才不會(huì)出現(xiàn)“虛焊”問(wèn)題。焊接操作要點(diǎn)
焊接元件時(shí)宜選用低熔點(diǎn)的松香焊錫絲。焊接時(shí)要用鑷子夾持元件的引腳，一是可固定元件不動(dòng)，一是可以散熱以保護(hù)元件。焊接時(shí)烙鐵頭的溫度要適當(dāng)，被焊元件和烙鐵的接觸時(shí)間也要適當(dāng)，焊接時(shí)間過(guò)短會(huì)造成虛焊，但焊接時(shí)間過(guò)長(zhǎng)又會(huì)燙壞元件。一般元件的焊接時(shí)間以2-3s為宜。焊點(diǎn)處焊錫未凝固前，不能搖動(dòng)元件或引線，否則會(huì)造成虛焊。焊接元件過(guò)程中烙鐵頭不要移動(dòng)，否則會(huì)影響焊點(diǎn)的質(zhì)量。對(duì)特殊器件的焊接應(yīng)按元件要求進(jìn)行，如CMOS器件要求電烙鐵金屬外殼不帶電并應(yīng)接地。有條件時(shí)最好使用防靜電電焊臺(tái)，沒(méi)有條件時(shí)，可先加熱電烙鐵，待焊接時(shí)把電烙鐵從電源插座上拔下，利用余熱進(jìn)行焊接。焊接完成后，要用無(wú)水酒精把電路板上殘余的助焊劑清洗干凈。焊接技術(shù)是儀表工必須掌握的一項(xiàng)基本功，也是保證儀表可靠工作的重要環(huán)節(jié)，儀表工要爭(zhēng)取多焊接，多操作，才能在實(shí)踐中不斷提高焊接技術(shù)。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門(mén)子，摩托羅拉，安川。力士樂(lè)。ACSO，橫河等進(jìn)口品牌。 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

E-T-A Flow Switch Monitor FS10-U1 10A max 24Vdc 2@Lot

Bedia Liquid Level Sensor Switch PLS-40 DC9-36V New 3@

Moore IPT Current Pressure Transmitter

Siemens A1103100532 Circuit Board Thyristor Tripler NOS

II-VI Laser Lens 1″ , 3 1/4″ Brass Casing New NOS

8908A001 Asco Electronic Module 24VDC Joucomatic NOS

3134-72 Russellstoll Receptacle 100A 480VAC 250VAC/DC

Newport Digital Panel Meter Q2001-OOR1 Quanta 115V NOS

APJ-6585 Plug 4W5P Crouse Hinds 60A 250DC/600AC

Omron A/D Module C200H-AD001 1-5V 4-20mA/0-10V AD001

Hubbell Killark SHC1058 / ZS514 Cord Connector Lot 10@

AdTech SCT00 Voltage Current Transmitter SCT00/I14/P6

Crompton Instruments 256-XWMU-QQHG-C?3-DG

Siemens Pump Overload Relay 958CA32AX625 33-66 MHA New

WeldSaver Proteus Control Monitor 9WS2WRAE-DOR Refurb

Interbus-S Phoenix Contact IBS IP CBK 1/24-F-V3

Black Box Expansion Serial Port PI221A + PI225A Unit

AdTech TCT26 Power supply Type K TCT 26/I15 115VAC

836-NX228072 Ser A Allen Bradley Pressure Switch NOS

NSD VM-2A-32 VM-2 MRE-32SP062 Absocoder Controller New

Pilz SafetyBus Input/Output Module PSSSBD1808 301140

Current Rating Module 1D89108G29 HTM-29 B Westinghouse

Siemens Simatic 6ES5946-3UA21 Module Circuit Board

Allen Bradley Hand Held Scanner 2755-G3 w/ cable

Milltronics Airanger SPL Ultrasonic Level Monitor (011)

Thalheim Tachoduktor Tachometer STD41FA4k 011215-51 NOS

Pepperl+Fuchs KHD2-IVI-AB1 92478 Bus Coupler Mod. Used

Texas Instrument Siemens ASCII Basic 305-01AB Module

Phoenix Contact Systemtrab Valvetrab Circuit Breakers +

CW-65C23 200A Receptacle Killark 4W4P 3ph 600V

4264BC Receptacle Russellstoll 30/60A 250/480VAC

Cutler-Hammer Circuit Breaker E125E EGE3050FFG New

Dynapar Danaher MSJR3500 Master Speed Controller New

Siemens Allis Contact Kit 25-106-923-812 Siz 3 NOS OEM

APS-3A De-Icing Control for Roofs/Gutters ETI NOS

810-A28C Magnetic Overload Relay Vintage Allen Bradley

Flotec Pump Century Motor 1/4hp 115V 7-129797-20 5A NOS

Plug AR647-M72 Crouse Hinds 60amp 4W4P Arktite

800H-2HG7 Jog Stop Industrial Switch 600V max Haz Duty

Russellstoll Receptacle JRSA1034H +mt. box 250/600VAC

IC693ALG221B GE Fanuc Input Analog 4pt Current Module

System Electric Condensomatic CR2000-8-AT

BLACK BOX LWU200GB-E-US LASER LINK 200GB 155293

EMERSON R313 60 HP ELECTRIC MOTOR 1190 RPM 31026

N. BASE COMMUNICATIONS NH228-IPS IP SWITCH 153044

3M FT520#R2 HOT MELT TOOL KIT 155204

ELKAY ENOBM28C SWIRLFLO SENSOR OPERATED DRINK FOUNTAIN

ICP BHC120M1A 10 TON HP MULTI POSITION FAN COIL 165796

NEW BRUNSWICK C-10* CLASSIC SHAKER 158021

YORK BP060C00N4ABA1 5T 10 SEER ROOFTOP AIR CONDITIONER

US/EMERSON C75P3B 75 HP MOTOR INVERTER TEFC 69706

ELKAY LRPBM28K 2 LEVEL REFRIGERATED WATER FOUNTAIN BODY

COPELAND 2DD3R63KE-TFD-8?00 5T AC/HP COMPRESSOR 166128

WEG 03018ET3ECT286T COOLING TOWER 30HP MOTOR 162438

DAY AND NIGHT PHF342000L00A1 3.5T ROOFTOP AIR CONDITIO

DAYTON ACP060C1342A 5TON ROOFTOP AIR CONDITIONER 151680

CARRIER 19C871479 IMPELLER 5″ IN DIAMETER SHAFT SIZE

CARRIER 19C661469 IMPELLER 3″ DIAMETER 151065

GOULDS PUMPS 0C02214A26-2149 SHAFT ASSY W/GEAR 99056

CARRIER 17M317344 GUIDE VANE ASSEMBLY 150376

OTC 5019 LOW LIFT TRANSMISSION JACK 162354

DAYTON 20 HP MOTOR 208-230/460 VOLT 3540 RPM 159300

DAYTON 20 HP MOTOR 208-230/460 VOLT 1750 RPM 159303

TRANE YSC036E4ELA0L 3 TON ROOFTOP AIR CONDITIONER

MTI QSODI6042-BT OVAL BATH TUB SOAKER ONLY/BISCUIT

BLACK BOX LWU0500-TP-PLUS?-US LASER TWISTED PAIR 156987

CARRIER 17M4241184 SEAL HOUSING 150340

DAYTON 12,000 BTUH PORTABLE AIR CONDITIONER 159684

COPELAND 6RH1-200A-TSK-8?00 20T SEMI HERMETIC 58411

DAYTON 54″ CABINET EXHAUST FAN/RPM 518 156895

DAYTON URT8618 480 VOLT 50KW UNIT HEATER 170,500 BTU

DAYTON URT8618 480 Volt 50KW UNIT HEATER 170,500 BTU

JACUZZI EH85969 72″FIBERGLASS WHIRLPOOL CENTER DRAIN

BERK-TEK 10033023 8162’SPOOLED FIBER OPTIC CABLE 140158

DAY AND NIGHT PHX336000L00A1 3T ROOFTOP AIR CONDITIONER

DAY AND NIGHT PHX336000L00A1 3T ROOFTOP AIR CONDITIONER

PORT-A-COOL PAC2K482S EVAPORATIVE FAN 1 HP 146406

JAMESBURY 815W3600TT/GO 10″ BUTTERFLY VALVE 58228

ELKAY ECH81J 115 VOLT REMOTE WATER CHILLER 160849

THERMO SCI 335900AP000 GEN 10 VIS W/OUTPUT PRINTER

BLACK BOX AC1051A CAT5 VIDEO MATRIX SWITCH 159872

SUMITOMO ELECTRIC SE-3NK096A 2862′ 96-STRAND CABLE

CIECOR OPTICAL 060X81-T-31XX24 FIBER OPTIC CABLE 154395

RHEEM RKNA-A060DL10E 5 TON ROOFTOP AIR CONDITIONER

SQUARE D H365R FUSIBLE SAFETY SWITCH 161058

REZNOR RP400-8 400,000 BTU ROOFTOP DUCT FURNACE 166310

REZNOR RP400-8 400,000 btu ROOFTOP DUCT FURNACE 166310

DAYTON POWER VENTED UNIT HEATER W/ BELT DRIVEN BLOWER

DAY AND NIGHT PGF342080L00A 3.5T ROOFTOP AIR CONDITION

RUBBERMAID 1046 2-1/2 CUBIC YARD TILT TRUCK 161139

3COM 3C17204-US SUPERSTACK 3 4400 157202

RHEEM RJNL-A048CL000 4 Ton ROOFTOP AIR CONDITIONER

RHEEM RJNL-A048CL000 4 ton ROOFTOP AIR CONDITIONER

CARRIER 19C761479 IMPELLER 5″ DIAMETER 151063

YORK HPP048C1323A 4Ton PACKAGED HEAT PUMP UNIT 147124

NEW JOHNSON CONTROLS 2 1/2in 3-WAY MIXING VALVE 77059

DAYTON 5 HORSEPOWER DUST COLLECTOR 161044

CARRIER 17P334841 INLET GUIDE VANE 150375

DDAY AND NIGHT PGH036LEA00AA 3T ROOFTOP AIR CONDITIONE

MITSUBISHI PUH30EK 2.5 TON 10 SEER MINI-SPLIT CONDENSER

KOHLER K-1457-H-O-BA PROTRAIT 5.5′ WHIRLPOOL BATH 82608

TVI CORP. CBR-UZ-08-E-02D EXT BASIN CHEM/STAT 146128

YORK RP0300V2LAG1 2.5T UPFLOW PACKAGE HEAT PUMP 150717

MULTIPLEX 2260SC COUNTERTOP DRINK DISPENSER 22542

FLORIDA HEAT PUMP EM048-3HZ 4 TON HORIZONTAL HEAT PUMP

ICP HC4A360ALA 5 TON SS AIR CONDITIONER R-410A 3-PHASE

ICP HC4A360AHA 5T HORIZONTAL SS AIR CONDITIONER R-410A

DAY AND NIGHT PGH036HEA00AA 3T ROOFTOP AIR CONDITIONER

CARRIER 19C661479 IMPELLER 5″ IN DIAMETER SHAFT SIZE

RHEEM E12A-3-G 13 GALLON COMMERCIAL WATER HEATER 160653

CISCO CISCO2621# 2600 SERIES MODULAR ACCESS ROUTER

DAYTON 6017-1-6 60HP ELECTRIC MOTOR 230/460V 94091

YORK D1NA048N06546 4 TON 80,000 ROOFTOP AIR CONDITIONER

CARE STREAM HEALTH INC 8191066 KODAK EDAS 290 EPI MAC

THERMO SCIENTIFIC 001373 PYROLYZER ASSEMBLY 12″Hx5″DIA

FRANKLIN CHEF FIM200 SELF CONTAINED CLEAR ICE MAKER

MILLIPORE CORP MAMPO9608 MULTISCREEN PUNCH 145853

DAYTON ACP036G0701341A 3T 70000 ROOFTOP AIR CONDITIONER

MED ENG SYSTEMS INC 1105-653 CHILLER VERSACOOL 146063

RHEEM RJNL-A036CL000 3 TON ROOFTOP AIR CONDITIONER

RHEEM RJNL-A036CL000 3 TON ROOFTOP AIR CONDITIONER

CISCO WS#C3524-XL-EN XL SWITCHES 153276

CISCO WS-C1924-EN-DC ETHERNET SWITCH 153132

MITSUBISHI CMB-1016NU-F BC CONTROLLER 208/230V 146000

CARRIER 17FA5622484 INTAKE WALL 27″ DIAMETER 151055

ICP HC4H336ALA100 3 TON HEAT PUMP SPLIT-SYSTEM R-410A

COMDIAL FXCMW-16 FX CENTREX MW 16 PORT 155205

US ELECTRIC 9001382-994 100 HP ELECTRIC MOTOR 9188

MARATHON 365TSTDS4001AN 100 HP ELECTRIC MOTOR 39457

DAY AND NIGHT PGF336060L004 3T ROOFTOP AIR CONDITIONER

POWELL & POWELL SUPP 1893-10 10″GATE VALVE 160776

UNITARY PRODUCTS GROUP HP042X1331A 3-1/2T SS HEAT PUMP

GENERAL SHELTERS PAC2K363S 36″ EVAPORATIVE FAN 64194

SHIVA LPE57-AS-US-8 ETHERNET CONNECTOR 153042

BACHARACH HGM300-11-2 REFRIGERANT GAS MULTIZONE MONITOR

REZNOR RP-150F 150,000 BTU 80% AFUE GAS DUCT FURNACE

MULTIPLEX 00904158 DISPENSER ASSEMBLY ICE BIN 12446

KOLDWAVE 5K90CM34 7.5 HP WATER COOLED CONDENSING UNIT

CISCO CVPN3005-E/FE-B?UN CONCENTRACTOR 153466

DAY AND NIGHT PHN342000L00A1 3.5T ROOFTOP AIR CONDITIO

DAYTON CABINET SUPPLY FAN/48″ PROPELLER 152501

PERLE PERLE833 8 PORT TOKEN-RING 149537

EBARA CAD015-95018 CPU BOARD 150383

BLACK BOX ACR9002A SERVSWITCH DUAL ULTRA 162920

CARRIER 50TJ-006-611BF 5 TON ROOFTOP AIR CONDITIONER

CARRIER 50TJ-006-611BF 5TON ROOFTOP AIR CONDITIONER

CARRIER 50TJ-006-611BF 5 Ton ROOFTOP AIR CONDITIONER

DAY AND NIGHT PHH036H0A00AA 3T ROOFTOP AIR CONDITIONER

BLACK BOX WG40700 WATCHGUARD FIREBOX X700 159706

NEXAIN 530645 50 PAIR PLENUM CABLE 1700′

BLACK BOX EFN1024A-0500 FIBER OPTIC CABLE 500′ 156311

TRANE YHC033A3RLA1261 3 TON ROOFTOP AIR CONDITIONER

RHEEM RLKA-A048DL015 4 TON ROOFTOP AIR CONDITIONER

EMERSON H30P2B 30 HP ELECTRIC MOTOR 1775 RPM 39315

DAYTON AEHH-8N 20 HP MOTOR 1170 RPM/3-PHASE 157432

DAY AND NIGHT PGN336060H00A 3T ROOFTOP AIR CONDITIONER

ICP HC4A348AHA 4 TON SS AIR CONDITIONER R-410A 3 PHASE

BLACK BOX AC503AE# CAT 5 VGA VIDEO SPLITTER 155088

ICP LABC150M1AA 12.5 TON AC FAN COIL UP/HORIZONTAL

MTI QWODI6042-BT WHIRLPOOL OVAL TUB WITH PUMP/BISCUIT

CARRIER 19DH33238 GUIDE VANE ASSEMBLY 150329

OPTICAL CABLE CORPORATION EFP2048A-1000 48 FIBER 153572

BLACK BOX LWU1000-FO-US LASER FIBER INPUT 156988

YORK B2HP036A46 3 TON ROOFTOP AIR CONDITIONER 149904

YORK B2HP036A46 3T ROOFTOP AIR CONDITIONER 149904

REZNOR RP125F-8 125,000 BTU 80% GAS DUCT VENT FURNACE

CISCO ACCESS AS2511#RJ-CH SERVER/CABLING AND SETUP KIT

COPELAND 4RR1-3000-TSK-R?EMFG 30 TON COMPRESSOR 96912

DAYTON 20″ FLOOR DRILL PRESS 230 VOLT 1-1/2 HP 19420

YORK D1NH036N05646 3T 70,000BTU ROOFTOP AIR CONDITIONER

DAYTON 20″ FLOOR DRILL PRESS 1-1/2HP 230V 19420

YORK D1NH036N05646 3T 70000 BTU ROOFTOP AIR CONDITIONE

JACUZZI K615969 72″ OYSTER WHIRLPOOL BATH/6 JETS 160486

COMFORTAIRE TGCG042A-4K-120 3.5T ROOFTOP AIR CONDITION

COMFORTAIRE TGCG042A-4K-120 3.5t ROOFTOP AIR CONDITION

KOHLER K-1014-HA-0 20.5″ X 31″ FIBERGLASS WHIRLPOOL TUB

YORK DAPM-F048AA 4 TON ROOFTOP AIR CONDITIONER R-22

APRILAIRE 1160 STEAM HUMIDIFIER 24-LBS/HR 151030

DAYTON FAN FORCED 30.0KW ELECTRIC UNIT HEATER 161855

BLACK BOX DVD-PRM-PRO-101?6 1 TO 10 DVD/CD DUPLICATOR

MINUTEMAN C46100-00 17″ BRUSH HEAD CARPET CLEANER

THERMO SCIENTIFIC 51231135 FIXED ANGLE ROTOR ADAPTER

JENN-AIR JES8850BAS STAINLESS STEEL CONVECTION OVEN

AMERICAN STANDARD 2703128WC.021 6 JET WHIRLPOOL TUB

DAYTON GCGD42S41S3A 3.5 TON SS AIR CONDITIONER 1-PHASE

TRANE WSC036A3R0A0000 3T ROOFTOP AIR CONDITIONER 15061

BLACK BOX IC454A CCTV RECEIVER HUB 16 PORT BALUN 155222

COMFORTAIRE RSG1448-1B 4 TON SS AIR CONDITIONER 165161

ICP HC4A336AHA 3 TON HORIZONTAL AIR CONDITIONER R-410A

ICP HC4A336ALA 3 TON SS AIR CONDITIONER R-410A 3-PHASE

ICP HC4A336AHA 3T HORIZONTAL AIR CONDITIONER R-410A

ICP HC4A336ALA 3T SS AIR CONDITIONER R-410A 3-PHASE

ICP HC4A336AHA 3 TON HORIZ AIR CONDITIONER R-410A

RHEEM RRNL-B036CK08E 3 TON ROOFTOP AIR CONDITIONER

DURAMETALLIC KR8GA000AB3 CARBON SEAL RING 57319

EMERSON AF17 3-PHASE GENERAL PURPOSE MOTOR 146674

CISCO CISC02611# DUAL ETHERNET MODULAR ROUTER 153237

DAYTON 36″ EXHAUST VENTILATOR 1/2-5 HP 35511

YORK B1HA048A46 4 TON ROOFTOP AIR CONDITIONER 149901

SQUARE D PQ4620G FUSIBLE BUS PLUG/CURRENT RATING 200AMP

BLACK BOX KVT123A SERVIEW II RACK-MOUNT 155242

THERMO SCIENCE NC9063335 PC POWER BOARD 7000M 146052

BLACK BOX LR0025AE#KIT E3 NETWORK EXTENDER KIT 155272

BLACK BOX SCA-ON2-2001A KVM EXTENDER/SHARER LOCAL MODUL

PARALLEL TO SERIAL MINI BUFFER PI454A-180 115V 145055

BLACK BOX TD115V-R3 SERIALTEST WITH COMPROBE 145069

JACUZZI ES60969 72″ x 42″ OYSTER RIVA 6 WHIRLPOOL BATH

DAYTON HPP042C1241B 3.5 TON ROOFTOP AIR CONDITIONER

MITSUBISHI PL42AK INDOOR AIR HANDLER 148608

MITSUBISHI PL42AK INDOOR AIR HANDLER R-22 148608

TRANE 4TWA3048A4000AA 4T SS HEAT PUMP R-410A 3-PHASE

SQUARE D 82344N 200A/480 VAC DOUBLE THROW SAFETY SWITCH

YORK DAYA-W036N070 3T 70,000 ROOFTOP AIR CONDITIONER

專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊

PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家


選擇深圳長(zhǎng)欣，選擇放心，售后無(wú)憂(yōu)大量現(xiàn)貨，當(dāng)天順豐發(fā)貨！
主營(yíng)：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，力士樂(lè)等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊(cè)”（不管能不能看懂，先了解個(gè)大概，以便學(xué)習(xí)編程時(shí)查找）；
2、由位控邏輯入手，逐漸增加定時(shí)、計(jì)數(shù)等條件，把或、與、非關(guān)系理順；
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類(lèi)型轉(zhuǎn)換；
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解（最好是有個(gè)物理回路驗(yàn)證，比如變頻器+電機(jī)+測(cè)速傳感器）；
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制（盡量避免跳轉(zhuǎn)，非跳不可時(shí)也是跳的越近越好）；
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列，GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌，由于PLC的基本框架大同小異，學(xué)會(huì)一種至于其它的學(xué)習(xí)起來(lái)也就簡(jiǎn)單了。

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