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 2711P-RDT10C SER B DISPLAY MODULE ONLY

ALLEN BRADLEY 2711P-RP2A G LOGIC MODULE PANELVIEW PLUS 6

ALLEN BRADLEY 2711P-T10C4A1 PANELVIEW PLUS 6 1000 2711P-RDT10C & 2711P-RP1A

ALLEN BRADLEY 2711-T10C20 E FRN 4.41 PANELVIEW 1000 OPERATOR TOUCH PANEL

ALLEN BRADLEY 2711-T10C20 PANELVIEW 1000 D FRN 4.41

ALLEN BRADLEY 2711-T10C20L1 /C FRN 4.20 PANELVIEW 1000 OPERATOR PANEL

ALLEN BRADLEY 2711-T10C20L1 /E FRN 4.41 PANELVIEW 1000 OPERATOR PANEL

ALLEN BRADLEY 2711-T5A20L1 SER B PANELVIEW 550 OPERATOR INTERFACE

ALLEN BRADLEY 2711-T6C5L1 PANELVIEW 600 OPERATOR PANEL 5.7" DISPLAY

ALLEN BRADLEY 2715-B15CD PANELVIEW 5500 15 IN. GRAPHIC TERMINAL

ALLEN BRADLEY 2755-L9RD SER D REV B SCANNER HEAD SIDE

ALLEN BRADLEY 2755-L9RD SER D REV C SCANNER HEAD SIDE

ALLEN BRADLEY 2755-LD8A1 VISIBLE LASER DIODE SCANNER

ALLEN BRADLEY 291E-FAZ-G2 /A ARMOSTAT LT ETHERNET REVERSING STARTER FRN 1.008

Allen Bradley 3 Wire DC Inductive Proximity Sensor 872L-D40EP40-D4 92523

ALLEN BRADLEY 40851-122-05A PROCESSOR CONTROLLER BOARD

ALLEN BRADLEY 4100 4100-ALEC-BETA ENCODER CONVERTER D BETA

ALLEN BRADLEY 4100-202-R 2 AXIS MOTION CONTROLLER W/ PC-658-0792 BACKPLANE

ALLEN BRADLEY 43652 CONVERTER BOARD 250 HP DRIVE

Allen Bradley 440E-L13043 Lifeline 4 Emergency Cable Pull Switch

ALLEN BRADLEY 440G-EZS21STL05H GUARD MASTER SWITCH

ALLEN BRADLEY 440G-LZS21SPLH GUARD LOCKING SWITCH

ALLEN BRADLEY 440G-S36001B SAFETY INTERLOCK SWITCH WITH GUARD LOCKING

ALLEN BRADLEY 440R-EM4R2D SAFETY RELAY GUARDMASTER

Allen Bradley 440R-G23216 Single Function Safety Relay 24V AC/DC 6A 5W

ALLEN BRADLEY 440R-H23196 /B MSR238DP SAFETY RELAY "READ"

Allen Bradley 440R-N23132S Guardmaster MSR127TP Single Function Safety Relay

ALLEN BRADLEY 440R-S13R2 GUARDMASTER SAFETY RELAY

ALLEN BRADLEY 440R-S13R2 GUARDMASTER SAFETY RELAY #2

Allen Bradley 442L-AMBSFZNMZ3 Base for 442L-Sfznmz Laser Scanner

ALLEN BRADLEY 45MLA-AT1200P10 TRANSMITTER RECEIVER LIGHT ARRAY PHOTOELECTRIC SEN

 ALLEN BRADLEY 505-AAD REVERSING STARTER ENCLOSURE ONLY

ALLEN BRADLEY 520E-BOD 2 SPEED SEPARATE WINDING STARTER 50-60HZ 110-120V

ALLEN BRADLEY 520F-COB STARTER MULTI SPEED 600V AC MAX

ALLEN BRADLEY 56RF-IN-IPD22 SER A FW 1.06 RFID iCODE INTERFACE

 ALLEN BRADLEY 592-1EFCC OVERLOAD RELAY

ALLEN BRADLEY 6 AWG CABLE

ALLEN BRADLEY 6177RM4AXPX /B INDUSTRIAL COMPUTER

ALLEN BRADLEY 6180-FLKEGLHCHEZ /B OPERATOR INTERFACE

ALLEN BRADLEY 6181P-15TPXP 1500P OPERATOR INTERFACE TOUCH SCREEN 15 IN

ALLEN BRADLEY 6181P-15TPXP SER E 1500P OPERATOR INTERFACE 15 IN

ALLEN BRADLEY 6181P-17A3MW71AC /F 1700P OPERATOR INTERFACE 17 INCH

Allen Bradley 61825-CGBZZC Ser A Industrial Computer Touch Screen

ALLEN BRADLEY 6690-DS2 REMOTE I/O BOARD FOR 1394 MOTION CONTROL SYSTEM

ALLEN BRADLEY 700-FSM3UU23 HIGH PERFORMANCE TIMING RELAY

Allen Bradley 700-HLS1Z24 Interface Module Series A Relay 700 Bulletin

 ALLEN BRADLEY 700S-CF620EJC SAFETY CONTACTOR 24 VDC COIL

 ALLEN BRADLEY 700-SN50VHC SER A HEAT SINK

ALLEN BRADLEY 712-BAB729 COMBINATION STARTER #2

ALLEN BRADLEY 7A MOTOR CIRCUIT PROTECTOR 140MG-H8P-B70 BREAKER

 ALLEN BRADLEY 800H-DP6 HEAVY DUTY RED PUSH BUTTON

ALLEN BRADLEY 800T-9TZ ENCLOSURE 800T-PH16R PILOT LIGHT 800T-A... PUSH BUTTON

 ALLEN BRADLEY 800T-PA16B SER T PUSH BUTTON

ALLEN BRADLEY 808-M17 SPEED SWITCH

ALLEN BRADLEY 8600-2571F 86002571F OPERATOR INTERFACE PANEL

ALLEN BRADLEY 900023 -9002E REV FT01 I/O PC BOARD

ALLEN BRADLEY 905728-01 MEMORY PC BOARD

ALLEN BRADLEY 960588 PLC INTERFACE CARD

 ALLEN BRADLEY 96994001 CABLE ASSEMBLY

Allen Bradley A010-AN-EN4-GM5 Circuit Board

ALLEN BRADLEY A77143-246-52 77143-246

ALLEN BRADLEY A77145-231-51 A40863-032-51 FOR 1404-M405A-RIO POWERMONITOR

ALLEN BRADLEY A7714S-252-51 99572-000 POWER BOARD

Allen Bradley A-B Kinetix Low Inertia Servo Motor 400V 4500rpm

Allen Bradley A-B Rec A Reversing Contractor 26A 100-250V AC/DC Coil

Allen Bradley A-B Reversing Contractor Coil 3 Main Poles

ALLEN BRADLEY BASE 1764-24AWA W/ 1764-LSP PROCESSOR UNIT MICROLOGIX 1500

ALLEN BRADLEY CAT 25C SER B POWERFLEX 527 AC DRIVE CONTROL KEYPAD MODULE

ALLEN BRADLEY CONTACTOR OPEN TYPE 3P 4000-048-03 CAT 702-DOD93

ALLEN BRADLEY DISPLAY DRIVE CARD HH18882 MIC-REV. 03 60 Hz

ALLEN BRADLEY GUARDMASTER TLS1-GD2 440G-T27171 SAFETY INTERLOCK SWITCH

Allen Bradley Inverter 1.5kW 2Hp AC Drive 25B-D4P0N104 SEE DES

Allen Bradley Inverter Duty AC Servo Motor 460V 3 Phase 3800RPM 0-260HZ 10.6HP

Allen Bradley Minature Contactor 100-K09DJ10 9A 24VDC

ALLEN BRADLEY MPL-A1510V-EJ42AA AC SERVO MOTOR 8000 RPM

ALLEN BRADLEY MPL-B310P-MJ74AA KINETIX SERVO MOTOR 5000 RPM #1

ALLEN BRADLEY MPL-B430P-MJ74AA KINETIX SERVO MOTOR 5000 RPM

ALLEN BRADLEY MSR5T 440R-B23020 GUARDMASTER SAFETY RELAY

ALLEN BRADLEY PANEL VIEW 600 AA77143-218-52 PANEL

ALLEN BRADLEY PANELVEIW 900 77144-217-52 77145-231-51 FOR PARTS

ALLEN BRADLEY PANELVEIW C600 GRAPHIC TERMINAL

ALLEN BRADLEY PANELVIEW PLUS COMPACT 600 OPERATOR INTERFACE

ALLEN BRADLEY PC-666-0894 PC-670-0894 PC-677-0895 6690DS2

ALLEN BRADLEY PC-670-0894 AXIS BOARD

ALLEN BRADLEY PLUS II 1336F-B015-AA-EN-HAS2-L6 ADJUSTABLE FREQUENCY AC DRIVE

ALLEN BRADLEY POWER SUPPLY 1768-PB3A - PARTS

ALLEN BRADLEY POWERFLEX 4 22A-A4P5N104 /A 1HP AC DRIVE FRN 7.02

ALLEN BRADLEY POWERFLEX 525 25B-D2P3N114 1HP DRIVE