6ES7136-6DB00-0CA0 编码器
PLC具有通信联网的功能,它使PLC与PLC之间、PLC与上位计算机以及其他智能设备之间能够交换信息,形成一个统一的整体,实现分散集中控制。现在几乎所有的PLC新产品都有通信联网功能,它和计算机一样具有RS-232接口,通过双绞线、同轴电缆或光缆,可以在几公里甚至几十公里的范围内交换信息。
PLC之间的通讯网络是各厂家专用的,PLC与计算机之间的通讯,一些生产厂家采用工业标准总线,并向标准通讯协议靠拢,这将使不同机型的PLC之间、PLC与计算机之间可以方便地进行通讯与联网。
了解了PLC的基本结构,我们在购买程控器时就有了一个基本配置的概念,做到既经济又合理,尽可能发挥PLC所提供的佳功能。
基本指令系统特点
PLC的编程语言与一般计算机语言相比,具有明显的特点,它既不同于语言,也不同与一般的汇编语言,它既要满足易于编写,又要满足易于调试的要求。目前,还没有一种对各厂家产品都能兼容的编程语言。如三菱公司的产品有它自己的编程语言,OMRON公司的产品也有它自己的语言。但不管什么型号的PLC,其编程语言都具有以下特点:
STANLEY QA1001-QA ALPHA IV CONTROLLER 21A108722QA1001NIB
STANLEY QA1001-QA ALPHA / QPM CONTROLLER QA100121A108722
Stanley Assembly Technologies 21A108725 Torque Controller QPMAlpha Nutrunner
STANLEY ALPHA SERIES TORQUE CONTROLLER SG-ALPHA-202-001Q1001-010-001
Stanley Alpha 21A108722 Contorller
Stanley Alpha 21A108721 Contorller
Stanley AG-ALPHA-202-001, SG-ALPHA-202-001 NutrunnerController
SSP Alfa Laval Rotary Lobe Pump 2.5" S4-0079-H07 GPM Pumps AlphaS40079H07
SSP Alfa Laval Rotary Lobe Pump 1.5" S3-0027-H10 GPM Pumps AlphaS30027H10
SSP Alfa Laval Rotary Lobe Pump 3" 1KDRS75HACZXSR5-1422-07 Tri-Clover Alpha
SSP Alfa Laval Rotary Lobe Pump 1.5" S3-0027-H10 GPM PumpsAlpha S30027H10
SSD Drives 6901-00-B Keypad with Alpha Numeric display
Squared Alpha-Pak Solid State Reduced Voltage Controller 8660MDO46 AH (EBS-407)
Squared Alpha-Pak Alpha Pak Solid State Reduced VoltageController 8660 MF046 AH
SQUARE HEXOLOY SINTERED ALPHA SILICON CARBIDE PLATE REFRACTORYWIRELESS HEATER73
SQUARE D Alpha Pak Reduced Voltage Controller P/N 1872793A Class860 for Parts
SQUARE D 8660-MGO46 8660MGO46 ALPHA-PAK ()
Sport Armband Tasche Jogging Tasche Smartphone Schutz FitnessEtui
Spool of 75+ Ft Black Alpha Wire TFT200-12, 3/32" ID, 0.107"ODTeflon Tubing
SPOOL OF +/- 45FT ALPHA WIRE CORP. FIT 105 3/4" BLACK PVC TUBING105C (OTHER)
Spool 900 FT Alpha 1550 24 AWG 1000V White Cable Wire
Spool 900 FT Alpha 1550 24 AWG 1000V Red Cable Wire
SPK100MF2-20 ALPHA GEAR REDUCER
SPK 075 MF2-10 -131-P&G Alpha SPK075MF210131P&G N330
Spiralbohrer Titex Plus A 1164 Tin 9,0 - 222 D -Alpha 2 -VHM P40 Neu
Speedy Soil / Sand Moisture Tester Alpha Lux Co
Speedy shipping with multiple nationwide warehouses
Sparco Leather Alpha Tab Index - Printeda-z - 8.50" X 11" - 25 /Set - Buff
Spacelabs Alpha X/Y Deflection
Sony α (alpha) NEX 3 NEX 5 NEX 7 camera 2 Microscope adapter Emount 23.2 mm 1"
Sony α (alpha) NEX 3 NEX 5 7 camera 2 0.5x Microscope adapter Emount 23.2 mm 1"
Sony Alpha A55 A-55 Genuine Instruction Owners Manual BookOriginal
Sony Alpha A33 A-33Genuine Instruction Owners Manual BookOriginal
Sonderposten Alpha to Omega Aloe Vera Bodylotion 3000 Teile UVP147.000€!
Solder, 1LB Roll, Alpha Aqualine 6000 63SN/37PB, .015" 110407,QQS-571, NOS
Solder Wire Roll .75mm 75cm .5kg Alpha Fluitin 1532Sn60Pb38Cu2
Solder Paste ~ Non-Electrical Repair Kit ~ 2 Oz. Alpha Fry 51011~ Free Shipping
SOLDER Alpha Cleanline Telecor Plus Core Solder Dia .032 (1 LbRoll) !
Solder 25lbs Mixed Lot dutch Acid & Rosin Core Wire SolderAlpha
Softshell Jacke ALPHA von elysee
Sodium C14-16 Alpha Olefin Sulfonate (AOS 40 Type) Surfactant 1gallon
SMZ-2T Microscope camera kit 1x lens 2 Canon EOS Apophot Optilabo Alpha Eclipse
SMV1207-000 ALPHA INDUSTRIES WAFER DIE CHIP SIZE 14-12 IC5052-3100/units
SMS1046-98 ALPHA INDUSTRIES Schottky Mixer Detector Diode,SOT-23, 3pin, (10pcs)
SMP1350-11 ALPHA INDUSTRIES DIODE PIN 50V 250MW SOD-323 (10pieces)
Smead SMD67195 Lavender Alpha-Z Color-Coded Second LetterLabels, Letter Y,
Smead SMD67194 Light Brown Alpha-Z Color-Coded Second LetterLabels, Letter X,
Smead SMD67193 Yellow Alpha-Z Color-Coded Second Letter Labels,Letter W,
Smead SMD67192 Pink Alpha-Z Color-Coded Second Letter Labels,Letter V, Pink,
Smead SMD67191 Dark Brown Alpha-Z Color-Coded Second LetterLabels, Letter U,
Smead SMD67190 Gray Alpha-Z Color-Coded Second Letter Labels,Letter T, Gray,
Smead SMD67189 Orange Alpha-Z Color-Coded Second Letter Labels,Letter S,
Smead SMD67188 Purple Alpha-Z Color-Coded Second Letter Labels,Letter R,
Smead SMD67187 Light Blue Alpha-Z Color-Coded Second LetterLabels, Letter Q,
Smead SMD67186 Dark Green Alpha-Z Color-Coded Second LetterLabels, Letter P,
Smead SMD67185 Dark Blue Alpha-Z Color-Coded Second LetterLabels, Letter O,
Smead SMD67184 Red Alpha-Z Color-Coded Second Letter Labels,Letter N, Red,
Smead SMD67183 Light Green Alpha-Z Color-Coded Second LetterLabels, Letter M,
Smead SMD67182 Lavender Alpha-Z Color-Coded Second LetterLabels, Letter L,
Smead SMD67181 Light Brown Alpha-Z Color-Coded Second LetterLabels, Letter K,
Smead SMD67180 Yellow Alpha-Z Color-Coded Second Letter Labels,Letter J,
Smead SMD67179 Pink Alpha-Z Color-Coded Second Letter Labels,Letter I, Pink,
Smead SMD67178 Dark Brown Alpha-Z Color-Coded Second LetterLabels, Letter H,
Smead SMD67177 Gray Alpha-Z Color-Coded Second Letter Labels,Letter G, Gray,
Smead SMD67176 Orange Alpha-Z Color-Coded Second Letter Labels,Letter F,
Smead SMD67175 Purple Alpha-Z Color-Coded Second Letter Labels,Letter E,
Smead SMD67174 Light Blue Alpha-Z Color-Coded Second LetterLabels, Letter D,
Smead SMD67173 Dark Green Alpha-Z Color-Coded Second LetterLabels, Letter C,
Smead SMD67172 Dark Blue Alpha-Z Color-Coded Second LetterLabels, Letter B,
Smead SMD67171 Red Alpha-Z Color-Coded Second Letter Labels,Letter A, Red,
Smead SMD67170 Assorted Alpha-Z Color-Coded Second Letter LabelsStarter Set,
Smead SMD67164 Light Green Alpha-Z Color-Coded First Letter NameLabels, M & Z,
Smead SMD67163 Lavender Alpha-Z Color-Coded First Letter NameLabels, L & Y,
Smead SMD67162 Light Brown Alpha-Z Color-Coded First Letter NameLabels, K & X,
Smead SMD67161 White Alpha-Z Color-Coded First Letter NameLabels, J & W,
Smead SMD67160 Pink Alpha-Z Color-Coded First Letter NameLabels, I & V, Pink,
Smead SMD67159 Brown Alpha-Z Color-Coded First Letter NameLabels, H & U, Dark
Smead SMD67158 Gray Alpha-Z Color-Coded First Letter NameLabels, G & T, Gray,
Smead SMD67157 Orange Alpha-Z Color-Coded First Letter NameLabels, F & S,
Smead SMD67156 Purple Alpha-Z Color-Coded First Letter NameLabels, E & R,
Smead SMD67155 Light Blue Alpha-Z Color-Coded First Letter NameLabels, D & Q,
Smead SMD67154 Dark Green Alpha-Z Color-Coded First Letter NameLabels, C & P,
Smead SMD67153 Blue Alpha-Z Color-Coded First Letter NameLabels, B & O, Dark
Smead SMD67152 Red Alpha-Z Color-Coded First Letter Name Labels,A & N, Red,
Smead SMD67150 Assorted Alpha-Z Color-Coded First Letter ComboAlpha Labels
Smead SMD63276 Green End Tab Guides, Alpha, Vertical Metal Tabs,Pressboard,
Smead SMD57076 Self-Tab Card Guides, Alpha, 1/5 Tab, Manila, 5 X8, 25/Set
Smead SMD57076 Manila Self-Tab Card Guides, Alpha, 1/5 Tab,Manila, 5 X 8,
Smead SMD56076 Self-Tab Card Guides, Alpha, 1/5 Tab, Manila, 4 X6, 25/Set
Smead SMD56076 Manila Self-Tab Card Guides, Alpha, 1/5 Tab,Manila, 4 X 6,
Smead SMD55076 Self-Tab Card Guides, Alpha, 1/5 Tab, Manila,25/Set
Smead SMD55076 Manila Self-Tab Card Guides, Alpha, 1/5 Tab,Manila, 25/Set
Smead SMD52376 Manila Recycled Top Tab File Guides, Alpha, 1/5Tab, Pressboard,
Smead SMD52180 Recycled Top Tab Guides, Alpha, 1/5 Tab,Manila/Color Poly, Legal
Smead SMD52180 Manila Recycled Top Tab Guides, Alpha, 1/5 Tab,Manila/Color
Smead SMD50576 Manila Green Recycled Top Tab Guides, Alpha, 1/5Tab,
Smead SMD50376 Manila Recycled Top Tab File Guides, Alpha, 1/5Tab, Pressboard,
Smead SMD50180 Recycled Top Tab File Guides, Alpha, 1/5 Tab,Manila/Poly, Letter
Smead SMD50180 Manila Recycled Top Tab File Guides, Alpha, 1/5Tab,