Stanford SR560

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描述

Stanford SR560

為了使各位初學(xué)者更方便地了解PLC,本文對PLC的發(fā)展、基本結(jié)構(gòu)、配置、應(yīng)用等基本知識作一簡介。
在自動化控制領(lǐng)域,PLC是一種重要的控制設(shè)備。目前,世界上有200多廠家生產(chǎn)300多品種PLC產(chǎn)品,應(yīng)用在汽車(23%)、糧食加工(16.4%)、化學(xué)/制藥(14.6%)、金屬/礦山(11.5%)、紙漿/造紙(11.3%)等行業(yè)。為了使各位初學(xué)者更方便地了解PLC,本文對PLC的發(fā)展、基本結(jié)構(gòu)、配置、應(yīng)用等基本知識作一簡介,以期對各位網(wǎng)友有所幫助。
PLC的發(fā)展歷程
在工業(yè)生產(chǎn)過程中,大量的開關(guān)量順序控制,它按照邏輯條件進(jìn)行順序動作,并按照邏輯關(guān)系進(jìn)行連鎖保護(hù)動作的控制,及大量離散量的數(shù)據(jù)采集。傳統(tǒng)上,這些功能是通過氣動或電氣控制系統(tǒng)來實現(xiàn)的。1968年美國GM(通用汽車)公司提出取代繼電氣控制裝置的要求,第二年,美國數(shù)字公司研制出了基于集成電路和電子技術(shù)的控制裝置,首次采用程序化的手段應(yīng)用于電氣控制,這就是第一代可編程序控制器,稱ProgrammableController(PC)。
個人計算機(簡稱PC)發(fā)展起來后,為了方便,也為了反映可編程控制器的功能特點,可編程序控制器定名為ProgrammableLogicController(PLC),現(xiàn)在,仍常常將PLC簡稱PC。
PLC的定義有許多種。國際電工委員會(IEC)對PLC的定義是:可編程控制器是一種數(shù)字運算操作的電子系統(tǒng),專為在工業(yè)環(huán)境下應(yīng)用而設(shè)計。它采用可編程序的存貯器,用來在其內(nèi)部存貯執(zhí)行邏輯運算、順序控制、定時、計數(shù)和算術(shù)運算等操作的指令,并通過數(shù)字的、模擬的輸入和輸出,控制各種類型的機械或生產(chǎn)過程??删幊绦蚩刂破骷捌溆嘘P(guān)設(shè)備,都應(yīng)按易于與工業(yè)控制系統(tǒng)形成一個整體,易于擴充其功能的原則設(shè)計。
上世紀(jì)80年代至90年代中期,是PLC發(fā)展最快的時期,年增長率一直保持為30~40%。在這時期,PLC在處理模擬量能力、數(shù)字運算能力、人機接口能力和網(wǎng)絡(luò)能力得到大幅度提高,PLC逐漸進(jìn)入過程控制領(lǐng)域,在某些應(yīng)用上取代了在過程控制領(lǐng)域處于統(tǒng)治地位的DCS系統(tǒng)。
PLC具有通用性強、使用方便、適應(yīng)面廣、可靠性高、抗干擾能力強、編程簡單等特點。PLC在工業(yè)自動化控制特別是順序控制中的地位,在可預(yù)見的將來,是無法取代的。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(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,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進(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? 國內(nèi)實力庫存商家

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

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

ICP HC4H330AKA 2.5 TON SPLIT-SYSTEM HEAT PUMP R-410A

DAYTON AC048X1341A 4 TON SS AIR CONDITIONER 13 SEER

BLACK BOX KV1044A 4 PORT QUAD HEAD 159766

T & S B-2339 CONTROL UNIT AND HOSE REEL ASSEMBLY 160681

TRANE 4TEE3C08A1000A 5 TON UP/HORIZONAL FAN COIL R-410

MI-T-M GC-3004-0ME1 COLD WATER PRESSURE WASHER 157636

YORK D2NA042N03646 3.5T 45,000 ROOFTOP AIR CONDITIONER

HALSEY TAYLOR OVL-II-SER-Q OVAL SHAPED WATER FOUNTAIN

專業(yè)銷售進(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? 國內(nèi)實力庫存商家


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

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學(xué)習(xí)編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運算、實數(shù)運算、類型轉(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(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
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)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。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)會一種至于其它的學(xué)習(xí)起來也就簡單了。