国产三线在线,亚洲久草在线视频,9久re热视频在线精品,久久久xxx

PLC是以微處理器為基礎，綜合了計算機技術、自動控制技術和通信技術，用面向控制過程面向用戶的“自然語言”編程，適應工業環境，簡單易懂、操作方便、可靠性高的新一代通用工業控制裝置。PLC是在繼電器順序控制基礎上發展起來的以微處理器為核心的通用自動控制裝置。

可編程序控制器是一種數字運算操作電子系統，專為在工業環境下應用而設計。它采用了可編程序的存儲器，用來在其內部存儲執行邏輯運算、順序控制、定時、計數和算術運算等操作指令，并通過數字的、模擬的輸入和輸出，控制各種類型的機械或生產過程。可編程序控制器及其有關的外圍設備，都應按易于與工業控制系統形成一個整體、易于擴充其功能的原則設計。

PLC產品種類繁多，其規格和性能也各不相同。對于PLC，通常根據其結構形式的不同、功能的差異和I/O點數的多少等進行大致分類。

按結構形式分類

根據PLC的結構形式，可將PLC分為整體式和模塊式兩類。

整體式PLC

整體式PLC是將電源、CPU、I/O接口等部件都集中裝在一個機箱內，如圖所示。具有結構緊湊、體積小、價格低的特點。小型PLC一般采用這種整體式結構。整體式PLC由不同I/O點數的基本單元（又稱主機）和擴展單元組成，基本單元內有CPU、I/O接口、與I/O擴展單元相連的擴展口以及與編程器或EPROM寫入器相連的接口等；擴展單元內只有I/O和電源等，而沒有CPU。基本單元和擴展單元之間一般用扁平電纜連接。整體式PLC一般還可配備特殊功能單元，如模擬量單元、位置控制單元等，使其功能得以擴展。

2）模塊式PLC

模塊式PLC將PLC的各組成部分分別做成若干個單獨的模塊，如CPU模塊、I/O模塊、電源模塊（有的含在CPU模塊中）以及各種功能模塊。模塊式PLC由框架或基板和各種模塊組成，模塊裝在框架或基板的插座上，如圖所示。這種模塊式PLC的特點是配置靈活，可根據需要選配不同規模的系統，而且裝配方便，便于擴展和維修。大、中型PLC一般采用模塊式結構。

還有一些PLC將整體式和模塊式的特點結合起來，構成所謂的疊裝式PLC。疊裝式PLC的CPU、電源、I/O接口等也是各自獨立的模塊，但它們之間是靠電纜進行連接的，并且各模塊可以一層層地疊裝。這樣，不但系統可以靈活配置，還可做得體積小巧。

2.2.按功能分類

根據PLC的功能不同，可將PLC分為低檔、中檔、。

SHD20B220 General Electric Power Break II breaker Electrically Operated 2000A
SHD16B216 General Electric Power Break II breaker Manually Operated 1000A LSIG
SHD16B216 General Electric Power Break II breaker Hi-Break Draw-Out 1600A LSIG
SHD08B208 General Electric Power Break II breaker Hi-Break Draw-Out 800A LSIG MO
SHD08B208 General Electric Power Break II breaker Hi-Break Draw-Out 800A LSIG
SHD08B208 General Electric Power Break II breaker Hi-Break Draw-Out 600A LSIG
SGPA36AT0600 General Electric Spectra RMS Current Limiting Circuit Breaker
SGHC3604L3XX GENERAL ELECTRIC Circuit Breaker 400A 600V
SGHC3604L3XX GENERAL ELECTRIC 3 POLE 400 AMP 600 VAC
SGHA36AT0600 General Electric GE Type SGHA Circuit Breaker 3 Pole 600 Amp 600V
SGHA26AT0600 General-Electric Hi-Break Circuit Breaker 600A 2P 600V (NO )
SFLA36AT0250 GENERAL ELECTRIC Circuit Breaker 250A 600V 3P 65K
SB480KL8GF General Electric Breaker Type Bus Plug 800A 4W SKLA SKHA SKPA
SB426RGR GENERAL ELECTRIC BUS PLUG 600A 4W 240V Spectra - MINT CONDITION
SB426RG GENERAL ELECTRIC BUS PLUG 600A 4W 240V Spectra - MINT CONDITION
SB426R GENERAL ELECTRIC BUS PLUG 600A 4W 240V Spectra - MINT CONDITION
Remanufactured General Electric DS3800DMEA1D1C Motor Exciter Control
REMANUFACTURED GENERAL ELECTRIC 44A294521-G01 PC BOARD 44A294521G01
REMANUFACTURED GENERAL ELECTRIC 193X529BBG01 MAIN CONTROL CARD
REFURBISHED GENERAL ELECTRIC DS3800NISA1C1D BOARD
REFURBBED 30HP GE GENERAL ELECTRIC AC MOTOR 5KS286SAB100 460V 3550 RPM TEFC
Rebuilt General Electric Magne-Blast AMH-4.76-250-1D 1200A 4.76 kV 5Cy ML-13A GE
Rebuilt General Electric GE Rectifier Stack 36C774353AFG03 36C774353AF G03
Rebuilt General Electric GE Rectifier Stack 36C774353AAG06 36C774353AA G06
Rebuilt General Electric GE Rectifier Stack 36C774353AAG05 36C774353AA G05
REBUILT General Electric 1500 HP Horizontal Electric Motor 8409S Frame 4160V
Rebuilt GE Magne-Blast AM-4.16-250-6C 1200 Amp Circuit Breaker General Electric
Rebuilt GE Magne-Blast AM-13.8-750-2H 1200 Amp Circuit Breaker General Electric
Rblt General Electric Micro Application Board PCB F31X139APMALG2 531X139APMAXG2
Rblt General Electric Kinamatic Direct Current DC Motor 5CD223PA089B803 150 HP
Rblt General Electric GE PCB Circuit Board DS200SDCIG1AEB C-ESS SDCI 6DA02 6FA02
Rblt General Electric GE LAN I/O Terminal Board PCB 531X307LTBAJG1 F31X307LTBA
Rblt General Electric 25 Hp Kinamatic DC Motor 5CD326E29 7G3160DV5DA
RBLT GE General Electric PC Board 4117J79G1
RBLT GE General Electric 877E528G-1 877E528G1 PC Board
PLPS3G01 General Electric GE Power Supply Input 36-72 / 3A-6A
PERFECT GENERAL ELECTRIC TLB234225 CIRCUIT BREAKER
PERFECT GENERAL ELECTRIC THPC3425 (H.P.C.) HIGH PRESSURE CONTACT SWITCH
PERFECT GENERAL ELECTRIC QMR368C 1200A PANELBOARD SWITCH
PERFECT GENERAL ELECTRIC FVK424R 200A, 3PH, 4W, 240V FUSIBLE BUS PLUG
PERFECT GENERAL ELECTRIC FVK364R 200A, 3PH, 3W, 600V FUSIBLE BUS PLUG
P3HC06SLI10 600AMP 3PH 3W 600V Spectra GE GENERAL ELECTRIC BUSWAY
Oxidized Dumet wire spool General Electric
NOS! NO ! GE GENERAL ELECTRIC 600A CIRCUIT BREAKER SGLB36BB0600 W/600A PLUG
NOS GE GENERAL ELECTRIC LR65 HIGH AMP KIT 0000-260495
NNB General Electric Resistor 600 Volts 96 Amps .65 OHMS Model IC9141 151A7741G4
NNB General Electric Heavy Duty Safety Switch Model TH3364J 11
NIB GENERAL ELECTRIC S3800HSQD1J1G PC BOARD LOW HP SEQUENCE W/ DS3800DSQD1A1A
NIB GENERAL ELECTRIC RL4RD040TD RELAY 4 POLE QTY: 10
NIB GENERAL ELECTRIC IS200ICBDH1BAA PC BOARD
NIB GENERAL ELECTRIC 6960067G001 SET OF CONTACTS 3-POLE KIT
NIB GENERAL ELECTRIC 531X133PRUAPG1 INTERFACE CARD
NIB GE GENERAL ELECTRIC DS3800 DS3800DMEA1D1C 6BA04
W/O  GENERAL ELECTRIC 193X376AB G01 INVERTER CARD GE 36B605232AB-A-X1 GD
UN! GE GENERAL ELECTRIC TURBINE POWER SUPPLY BOARD DS200EXPSG1A
TFJ236150WL General Electric 150 amp 3 pole 600 volt GE Circuit Breaker
TAKE OUT GENERAL ELECTRIC 8000 SER. MOTOR CONTROL STARTER CR306F0**LTH SZ.4
TAKE OUT GENERAL ELECTRIC 8000 SER. MCC REVERSING STARTER CR309D000XABA
REBUILD GENERAL ELECTRIC 150 HP 150HP C-FACE 3 PHASE MOTOR 5K444JL257A (OR51
Old Stock TMM4412R General Electric Four Meter Module 125 Amp One Phase
OLD STOCK GE GENERAL ELECTRIC FANUC CONTROL BOARD DS3800NAIF1A1A 6BA01 C-ESS
OLD STOC GE GENERAL ELECTRIC 10KVA TRANSFORMER 9T21B1006G2 1PH 240/480V
OLD GENERAL ELECTRIC GE SNUBBER 150-300HP SNUBBER CARD 531X149SNCADG1 T12
OLD General Electric CR353GLY0001A Definite Purpose 180 A MOTOR STARTER BP
OLD GENERAL ELECTRIC 44B377098-G01 SNUBBER BOARD CV
listing GENERAL ELECTRIC RHE08 Rheonik Coriolis flow meter/ transmitter digital power
listing GENERAL ELECTRIC 8000 3PH S8505551 P-91, 516 *NO *
listing GE GENERAL ELECTRIC PC BOARD DRIVE MAIN CONTROL CARD DS215SDCCG1AZZ01B 4144
listing GE GENERAL ELECTRIC PC BOARD DRIVE MAIN CONTROL CARD DS215SDCCG1AZZ01B 4144
listing GE GENERAL ELECTRIC IC640WMI610A INTERFACE CARD
listing GE GENERAL ELECTRIC IC640WMI610A INTERFACE CARD
listing GE GENERAL ELECTRIC CONTROL BOARD DS200SDCIG1AGB 4141