福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

以下链接皆有货

Allen Bradley 505-BOD-23 Size 1 Reversing Contactor 115-120v-ac 10hp

Allen Bradley 505-COC-23 Series C 25HP Combination Starter

ALLEN BRADLEY 505-TAB SER. N Nema Size 00 Reversing Contactor 480V NIB

ALLEN BRADLEY 505-TAB SER. N Nema Size 00 Reversing Contactor 480V  

Allen Bradley 509-BUD-1-4R Size 1 Series B Type 7&9 600V Explosion Proof Star

ALLEN BRADLEY 509-DAA/509-DOA SIZE 3 TYPE 1 SER. A MAGNETIC MOTOR

Allen Bradley 509-DOA Size 3 Magnetic Motor Starter

ALLEN BRADLEY 509-DOD-XXX ,SIZE 3 STARTER , WITH 592-A2KD OVERLOAD, SEE PHOTOS!

Allen Bradley 509-EOD Size 4 Starter 120V Coil 135 Amp 100HP Picture Of Contacts

ALLEN BRADLEY 509-EOD-9 SER A SIZE 4 STARTER 120V COIL See Pics Contacts

ALLEN BRADLEY 509-EOD-A2L SER A STARTER SIZE 4, 135A MAX Contactor

ALLEN BRADLEY 509GBOD SERIES W MULTI SPEED STARTER SIZE 1  

ALLEN BRADLEY 512 COMB STARTER 512-AAH-3-6P-90 509-A0D SIZE 0 W/X-343917 .075KV

Allen Bradley 512-AAB-6P-24R Combination Motor Starter

Allen Bradley 512-CAB-3-6P-90 Size 2 25HP Combination Starter Disconnect

Allen Bradley 520EAODA2FA2E 2-Speed Size 0 NEMA Starter w/ Relays

Allen Bradley 5370 Configurable vision processor module 5370-CVIM2 Ser A Rev C

Allen Bradley 5370-CVIM Vision Processor Module 5370CVIM Series B

ALLEN BRADLEY 592-COV16 SERIES A RELAY   And No Wire Marks

Allen Bradley 592-EC2CC DeviceNet E3 Plus SER C 5-25A Overload Relay

ALLEN BRADLEY 5KW SYSTEM 8520-1s5a-bat-ex4-t1-y-4-5-7 FOR PARTS

Allen Bradley 60-1600B 120v-ac Photoswitch Control Base E66

ALLEN BRADLEY 60-1798 / 601798 ()

Allen Bradley 609-ACW Ser K Manual Starter Nema Size 0 3PH  Old Stock

Allen Bradley 609-ACW Size 0 3 Phase Manual Controller

Allen Bradley 609-BAWA 3 Phase Size 1 Manual Starting Switch

ALLEN BRADLEY 609-BJW PUSHBUTTON STARTER SER. K SIZE 1 TYPE 12 3PHRRANT

ALLEN BRADLEY 6189-15B2AGP SER. B 15" BEZEL AGP OPERATOR PANEL 6180-ADKDEFDCCCZ

ALLEN BRADLEY 634484 CIRCUIT BOARD REV. 7

Allen Bradley 700DC-P400Z24 Series A DC Relay  

ALLEN BRADLEY 700DC-P800Z24 SER E DC RELAY COIL 24VDC 700-PC40 SER A PRISTINE

ALLEN BRADLEY 700-F220A2 CONTROL RELAY 240V/60HZ 220V/50HZ COIL

 ALLEN BRADLEY 700-FEA1SU22 SER B TIMER ON-DELAY

ALLEN BRADLEY 700-N400A2 TYPE N AC RELAY 240V-60HZ Series C 700-NT 700-NPTA1

Allen Bradley 700-P800A1 Control Relay 10AMP 120V AC 8 N.O. Contacts  

Allen Bradley 700-P800A1 Control Relay 115-120v-ac Ser D

ALLEN BRADLEY 700-PT200A1 B AC RELAY W/ 700-P200A1 B W/ 700-PT B  No Marks

Allen Bradley 700S-CF620DJC Safety Relay Ser A

Allen Bradley 702-EOD93 Series K Size 4 3 Phase 3 Pole 100HP 135A Starter  1

Allen Bradley 705X-Aod Ser L Size 0 Contactor Assembly FEN000606

Allen Bradley 709-AEA Series K Explosion Proof Motor Starter

ALLEN BRADLEY 709-B0A103 STARTER 120 V Coil SERIES K SZ 1

ALLEN BRADLEY 709-B0A103 STARTER 240 V Coil SERIES K SZ Old Stock See Pic

Allen Bradley 709-EOD103 Series K Size 4 Motor Starter

Allen Bradley 712-BAB6903 10HP Series L Combination Starter

Allen Bradley 712-BJA242 Type 12 Series N Size 1 Combination Starterar

Allen Bradley 712-COD127 Series K Size 2 25HP Starter

Allen Bradley 715-BOD127 Series 1 600V 10HP Multi-Speed Starterarr

Allen Bradley 7300-VPT 635344-90 Power Supply Board

ALLEN BRADLEY 74A83 COIL 240V 60 CYCLE - 220V 50 CYCLE 2-3 POLE ONLY

ALLEN BRADLEY 75A86 COIL SER K SIZE 5 120V/60CY 110V/50CY

ALLEN BRADLEY 800E-4X211 Lot Of 7

Allen Bradley 800F-X01 Contact Block 800F-XO1 Lot Of 13

ALLEN BRADLEY 800H NP33KF4 SER A SELECTOR SWITCH NO KEY

Allen Bradley 800H-3HC73 Double Switch Station

Allen Bradley 800H-AP1 Hazardous Location Push Button Green With 800T-XAP NOS

Allen Bradley 800H-BP6 Heavy Duty Push Button Series NOS W 800T-XAP Contact

Allen Bradley 800HC-FRXTPH16RA5 Series F Illuminated Pushbutton

ALLEN BRADLEY 800H-HP31KB6 SER A SELECTOR SWITCH NO KEY

ALLEN BRADLEY 800H-HP31KB6 SER A SELECTOR SWITCH SER.C CYL. LOCK SEL. SWITCH

ALLEN BRADLEY 800H-HP31KB6 SER C SELECTOR SWITCH NO KEY

ALLEN BRADLEY 800H-JP43KB7 SER C SWITCH LOCK WITH KEY

ALLEN BRADLEY 800HL-PPBF16A PUSHBUTTON AMBER EXPLOSION PROOF

ALLEN BRADLEY 800HL-PPT16A PILOT LIGHT AMBER EXPLOSION PROOF

Allen Bradley 800H-NP14 800H-2HHx7 800H-3HF7 Series T Explosion Proof Switch

ALLEN BRADLEY 800H-PR46A Pilot Light 480V

ALLEN BRADLEY 800H-PRT16A / 800HPRT16A ()

ALLEN BRADLEY 800H-PRT16G / 800HPRT16G ().

ALLEN BRADLEY 800H-QPB24B BLUE PILOT LIGHT EXPLOSION PROOF

ALLEN BRADLEY 800H-QPBH10R RED PUSH BUTTON EXPLOSION PROOF

ALLEN BRADLEY 800H-UR34 15k Potentiometer Unit Motor Speed Control 4/4x/13

Allen Bradley 800H-UR34 Potentiometer Unit Type 4,4x,13 15000 Ohms.  

ALLEN BRADLEY 800MR-FX6D2 / 800MRFX6D2 NIB

ALLEN BRADLEY 800MR-H42B / 800MRH42B

Allen Bradley 800MR-QB24BAS 800MRQB24BAS Ser D Push Button Switch 300v 10AMPS

ALLEN BRADLEY 800R-3HZ4 SERIES C ENCLOSURE On Off Pendant

ALLEN BRADLEY 800T-2TZ Push Button Enclosure

Allen Bradley 800T-D2 Black Mushroom Head Pushbutton

ALLEN BRADLEY 800T-FC26A PUSHBUTTON DOUBLE FLUSH & MUSHROOM1NO/1NC SER T NNB

 Allen Bradley 800T-H3103A Selector Switch 800TH3103A Ser T Sealed

Allen Bradley 800T-J19KE7B Selector Switch 3 Position Black Ser T

ALLEN BRADLEY 800T-J44B SER. T (GY/BL) NSMP

Allen Bradley 800T-J4KE7 3 Pos Spring Return Selector Switch

ALLEN BRADLEY 800T-J91B19 Three Postion Selector Switch

ALLEN BRADLEY 800T-PB16G ILLUMINATED PUSHBUTTON GREEN 120V SER. T 50/60HZ

  Allen Bradley 800T-PT16G 120V Green 30mm Push to Test Pilot Light

Allen Bradley 800T-PTH46G 800TPTH46G

ALLEN BRADLEY 800T-Q24G PILOT LIGHT GREEN 24VAC/DC SERIES U

Allen Bradley 800T-QMH2G Ser U 30mm Green Illuminated Push Button 57mm Mush Head

Allen Bradley 800T-QT10G Pushbutton Green Series T

ALLEN BRADLEY 800T-QTH10R PUSH TO TEST PILOT LIGHT RED LED 120V 1NO/1NC SERIES T

ALLEN BRADLEY 800T-T2F3DDXX AB 2-WAY JOYSTICK GENUINE

Allen Bradley 800T-T3Q7 Toggle Switch 800TT3Q7 Ser. T

 ALLEN BRADLEY 800T-XAY STACKABLE SEALED CONTACT BLOCK 1 NO 1 NC

 Allen Bradley 801-CMC21 Fork Lever Limit Switch Series A NIB

ALLEN BRADLEY 802MC-AY12 LIMIT SWITCH CORROSION RESISTANT SERIES F NIB

 Allen Bradley 802T-KTP Oiltight Limit Switch Series J NIB

Allen Bradley 802T-NPTP Oiltight Limit Switch 120-300V AC  Old Stock

Allen Bradley 802T-X7 Oil Light LImit Switch Base Assembly

Allen Bradley 802X-WS17 SER. B 120-600VAC 60A Limit Switch

Allen Bradley 806-G0D108 Ser B Solenoid 120V Coil NOS

 Allen Bradley 808-H2 50-60RPM Zero Speed Switch

 Allen Bradley 808-R4X1 Series F 2000RPM Speed Switch  arr.

Allen Bradley 815-EOV169 Series K 600VAC Overload Relay

Allen Bradley 8200 Series Control Panel W/O Screen Or Keys

Allen Bradley 8200C045 115V 10A Computerized Numerical Control

 Allen Bradley 836-A1E Pressure Control Hazardous Location Pilot Duty 1-YEAR

 Allen Bradley 836-C5J Ser B Pressure Control Switch

ALLEN BRADLEY 836-P11-LKJS-M Pressure Switch  

Allen Bradley 836T-T301J Ser A Pressure Control Switch Range 70-1000 PSI 600V

Allen Bradley 836T-T302J Ser. A Pressure Switch 120-600VAC 60A 200-3000PSI

 ALLEN BRADLEY 845GM-F4GAHP2048R ABSOLUTE ENCODER

ALLEN BRADLEY 845H-SJDZ13-CNY2-C SER. B 5VDC  Old Stock

Allen Bradley 845H-SJHZ14CMYA1 Series B Incremental Encoder

ALLEN BRADLEY 845T-LN12ECN SER B ENCODER 10 PIN CONNECTOR

Allen Bradley 849A-ZOA24 Ser. B Pneumatic Timing Relay 849A-Z0A24

ALLEN BRADLEY 849A-ZOD24 TIMING RELAY SER.B 849AZOD24

Allen Bradley 849-N4 Aux Contact for Pneumatic Timing Relay -

 Allen Bradley 8500-ANIO ANALOG I/O Digital Module RR

Allen Bradley 8500-E154 I/O Digital Module Analog

 Allen Bradley 8520-HR-A1-A3-2Q-4Q 176870/01 Series A Board

Allen Bradley 8520-S10 CE 1394 Series C 10KW 15A System Module Drivear

ALLEN BRADLEY 855T-B00XN4 SERIES B STACKLIGHT BASE W/BULB E60

 Allen Bradley 855T-B10BR3 Series C Green Strobe Light

Allen Bradley 855T-B10FC4 Flashing/Sound Lamp 855TB10FC4 W Bulb C66

Allen Bradley 855T-B10FN6 Flashing Stack Light Blue,   E60

 ALLEN BRADLEY 855T-BPM10C CONTROL TOWER STACK LIGHT MOUNTING BASE 855TBPM10C

Allen Bradley 871FM-D2NP11-Y3 Ser A Proximity Sensor Switch E79

ALLEN BRADLEY 872C-A10C18-A2 SER.B PROXIMITY SENSOR NSMP A62

Allen Bradley 872C-N8BN12-E2 Inductive Proximity Sensor

ALLEN BRADLEY 875CP-NM30NP34-A2 SER. A 10-40VDC NSMP

ALLEN BRADLEY 889D-F8AC-15 SER. A 8 Pin Straight Micro Female E58

ALLEN BRADLEY 889M-F12AH-30 12 Cond Cable Straight 30 Meter

 Allen Bradley 889M-F12AHMU-3 Cordset 12 Pin Straight 3 meter E55

Allen Bradley 889N-F5AE-20F 5p Mini Straight Qd Cordset 20 Foot 600v-ac E55

 Allen Bradley AB 1336SNSP16A Sealed PCB PLC 74103-784-51 REV 01 E79

ALLEN BRADLEY AC DRIVE VFD 1336-B003-ECD-FC3-L3 OPEN FRAME 5.7A 3.8-4.5KVA 380-4

Allen Bradley AC Solenoid W/Coil 110/120 VAC 50/60 HZ 860-G0D106 Ser A NOS

ALLEN BRADLEY AC VFD DRIVE 20AD2P1A0AYNNNC0 SER A POWERFLEX 70 2.1A 1HP 0.75KW 3

Allen Bradley BELIMO ZS-250 Series 2 Explosion Proof Housing Damper Pnumatic

Allen Bradley BUL. 1494F 1494F-NF200 200A 600VAC 3 Pole Disconnect Switch  1

Allen Bradley Bulletin 700 24V DC 700-HLT2Z24 Box Of 10

Allen Bradley Bulletin 800 2SZA7 Series L NEMA Type 7-9 Explosion Proof Push

Allen Bradley Bulletin 800 Group D Class 1 Type 7 Explosion Proof Pushbutton

Allen Bradley Bulletin Drive 1361-R062-3 240V 1 Phase

Allen Bradley Bulletin Reversing Contactor 3 Pole 104-C09KJ22 104C09KJ22 24V

ALLEN BRADLEY CAT 100-D Ser A. Contact  A62

ALLEN BRADLEY CAT 800T-T4T8 SER T JOYSTICK

Allen Bradley Cat E Size 4 E100 100HP 135A Motor Starter

Allen Bradley Clear mark Advanced Printer 1492-PCMA110 2021 Model Needs Software

ALLEN BRADLEY COMBO STARTER 512-BJB-3-4LG-6P-24J-90-414 SIZE 1 FUSIBLE 3RAR

ALLEN BRADLEY COMMUNICATIONS ADAPTER 1768-ENBT 834MA 5.2V 90DAY

ALLEN BRADLEY Contactor 100-A60N*3 SER C 120V Coil See Pics Of Contacts Refurb

Allen Bradley Contactor 100-ED400ED11 400 Amp

Allen Bradley Contactor Cover 100-D110

ALLEN BRADLEY CONTACTOR REVERSING 104-A45ND3 45A 220-660V 3P 3PH SER C W/RELAY 1