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
Heerbrugg MTr 22 Power Supply For Microscope C
Heidenhain 300.102 Controller
Heidenhain 300.102 Controller
HEIDENHAIN encoder ROD 1420
HEIDENHAIN Encoder ROD 426 5000 27S1203
Heidenhain Indramat RQN 224 Encoder
Heidenhain LIDA 407 628 507-07 440mm Scale Tape w/ 352 707-02
Heidenhain LIDA 407 628 507-07 440mm Scale Tape w/ 352 707-02
Heidenhain ST 1277 ST1277 511 395-01 TTLx10 Length Gauge 100,00 kHz
Heidenhain ST 1277 ST1277 511 395-01 TTLx10 Length Gauge 100,00 kHz
Heidolph K203-020-230-54-4-O-L-KA-OA-SS-B5 Motor
Heidolph K203-020-230-54-4-O-L-KA-OA-SS-B5 Motor
Heidolph Laborata 4000 Rotary Evaporator
Heidolph Laborata 4000 Rotary Evaporator
Heine GW 300-60x30 Transducer
Heine GW 300-60x30 Transducer
Helix Adsorber 8080255K001 Helium Filtration Cartridge w/ Rusts & Scratches
Helix Adsorber 8080255K001 Helium Filtration Cartridge w/ Rusts & Scratches
Helmholz 700-153-1AA02 7001531AA02 PROFIBUS Slave Interface Module PAS 300
Helmholz 700-153-1AA02 7001531AA02 PROFIBUS Slave Interface Module PAS 300
Hemmi Slide Rule PU1004A Power Supply AC100V 50/60Hz
Hemmi Slide Rule PU1004A Power Supply AC100V 50/60Hz
Hemmi Slide Rule PU1004B Power Supply
Hemmi Slide Rule PU1004B Power Supply
Hemmi TDS 5514-13FCN Board
Hemmi TDS 5514-13FCN Board
Hengstler SIGNO 722 Programmable Tachometer
Hengstler SIGNO 722 Programmable Tachometer
Heraeus 36507951A TYP PTR 3 Board w/ 36507961B
Heraeus 36507951A TYP PTR 3 Board w/ 36507961B
Hesse Mechatronics E-Net 2.0 Board
Hesse Mechatronics E-Net 2.0 Board
Hetronic CS458RXN Receiver 3 Business Days
Hetronic CS458RXN Receiver 3 Business Days
Heuft HE700018 M12 10.02 HE700018M1210.02 10-30VDC 100mA Encoder
Heuft HE700018 M12 10.02 HE700018M1210.02 10-30VDC 100mA Encoder
Hewlet Packard 8112A Pulse Generator 50MHz As Is
Hewlet Packard 8112A Pulse Generator 50MHz As Is
Hewlett Packard 09836-66542 3430926 Circuit Board
Hewlett Packard 09836-66542 3430926 Circuit Board
Hewlett Packard 3488A Switch/Control Unit C
Hewlett Packard 3488A Switch/Control Unit C
Hewlett Packard 6205C Dual DC Power Supply 0-40V.3A/0-20V.6A w/ Cut cable
Hewlett Packard 6205C Dual DC Power Supply 0-40V.3A/0-20V.6A w/ Cut cable
Hewlett Packard 6621A System Power Supply
Hewlett Packard 6621A System Power Supply
Hewlett Packard 6645A 0-120V/0-1.5A System DC Power Supply
Hewlett Packard 6645A 0-120V/0-1.5A System DC Power Supply
Hewlett Packard 9000 300 Workstation Computer w/ Missing Cover
Hewlett Packard 9000 300 Workstation Computer w/ Missing Cover
Hewlett Packard C6396A Tape Drive
Hewlett Packard C6396A Tape Drive
Hewlett Packard CN05E5Z26F CB070A OfficeJet All-in-One
Hewlett Packard CN05E5Z26F CB070A OfficeJet All-in-One
Hewlett Packard HP Agilent 8153A Lightwave Miltimeter As Is
Hewlett Packard HP Agilent 8153A Lightwave Miltimeter As Is
Hewlett Packard HP Agilent E3003-61070 E300361070 DTH MUXR Controller Module
Hewlett Packard HP Agilent E3003-61070 E300361070 DTH MUXR Controller Module
HI270BI0 MDK 3IIV-0 103743
HI270BI0 MDK 3IIV-0 103743
HiClass Function Control
HiClass Function Control
Hicom Card 1P S30810-Q2166-X000-05 Q2166-X000-05 LTUCX
Hicom Card 1P S30810-Q2166-X000-05 Q2166-X000-05 LTUCX
Higen FMA-KN05-AB10 FMAKN05AB10 AC Servo Motor
Higen FMA-KN05-AB10 FMAKN05AB10 AC Servo Motor
High Performance Parts 208-70-71510 2087071510 Bushing
High Performance Parts 208-70-71510 2087071510 Bushing
High Vacuum Apparatus 11211-0400 Pneumatic Vacuum Gate Valve
High Vacuum Apparatus 11211-0400 Pneumatic Vacuum Gate Valve
High Vacuum Apparatus 11241-0400X 112410400X Pneumatic Vacuum Gate Valve
High Vacuum Apparatus 11241-0400X 112410400X Pneumatic Vacuum Gate Valve
High Vacuum Apparatus 11241-0400X001 112410400X001 Pneumatic Vacuum Gate
High Vacuum Apparatus 11241-0400X001 112410400X001 Pneumatic Vacuum Gate
High Vacuum Apparatus Gate Valve 39x22x8
High Vacuum Apparatus Gate Valve 39x22x8
High Vacuum Apparatus Gate Valve 41x26x6
High Vacuum Apparatus Gate Valve 41x26x6
Hilba P52/2 B57-4-B-02 Servo Motor w/ BHK 16.05A500-I6-5
Hilba P52/2 B57-4-B-02 Servo Motor w/ BHK 16.05A500-I6-5
Hilba P52/2 Motor w/ B57-4-B-02 P52 + MEM 56 + H40-6-0500VL
Hilba P52/2 Motor w/ B57-4-B-02 P52 + MEM 56 + H40-6-0500VL
Hilberling HZ1800 Rofin Sinar
Hilberling HZ1800 Rofin Sinar
Hioki 1999 1114A502 Light Control Board U
Hioki 1999 1114A502 Light Control Board U
Hioki 1999 1114A506 DC Board
Hioki 1999 1114A506 DC Board
Hioki 1999 1301A503 Z o Sensor Board U
Hioki 1999 1301A503 Z o Sensor Board U
Hioki 1999 1301A504 Board
Hioki 1999 1301A504 Board
Hioki 2101 Volt Meter Relay
Hioki 2101 Volt Meter Relay
Hioki 3112 Digital M-Ohm High Tester 30Days Warranty
Hioki 3112 Digital M-Ohm High Tester 30Days Warranty
Hios BLT-AY-61 BLTAY61 BL Driver Controller
Hios BLT-AY-61 BLTAY61 BL Driver Controller
Hios CLT-65 CLT65 Power Supply
Hios CLT-65 CLT65 Power Supply
Hios Hitachi 6101B CL Driver Controller
Hios Hitachi 6101B CL Driver Controller
Hios HP-100 HP100 Digital Torque Meter Tester w/ rusts/scratches
Hios HP-100 HP100 Digital Torque Meter Tester w/ rusts/scratches
Hi-Pot Gnd-Test E230 G48/15 Bwru-PDT Rectifier
Hi-Pot Gnd-Test E230 G48/15 Bwru-PDT Rectifier
Hirose HS3552-2 HS35522 Stepping Motor Driver Controller
Hirose HS3552-2 HS35522 Stepping Motor Driver Controller
Hirsch Electronics M2 Power Supply w/o Cover
Hirsch Electronics M2 Power Supply w/o Cover
Hirschmann SPIDER-5TX-EEC Rail Switch
Hirschmann SPIDER-5TX-EEC Rail Switch
Hi-Scope Hi-Rox KH-2200MD3 KH2200MD3 Compact Micro Vision System
Hi-Scope Hi-Rox KH-2200MD3 KH2200MD3 Compact Micro Vision System
Hitachi 4196256 Piping Linefoe
Hitachi 4196256 Piping Linefoe
Hitachi 97-44338-9 LMG6911RPBC-XOT Display Screen Panel
Hitachi 97-44338-9 LMG6911RPBC-XOT Display Screen Panel
Hitachi ADAX3-08LL2 ADAX308LL2 Servo Drive
Hitachi ADAX3-08LL2 ADAX308LL2 Servo Drive
Hitachi ADVA-R5ML ADVA-R5ML/NT80V65 Servo Drive w/ Missing Front Cover
Hitachi ADVA-R5ML ADVA-R5ML/NT80V65 Servo Drive w/ Missing Front Cover
Hitachi BSU09H Base Rack Module 9 Slot
Hitachi BSU09H Base Rack Module 9 Slot
Hitachi CPU-20Ha CPU20Ha RAM-16H CPU-20HA79QDDACDD CPU Module AS IS
Hitachi CPU-20Ha CPU20Ha RAM-16H CPU-20HA79QDDACDD CPU Module AS IS
Hitachi E-20HR E20HR PLC
Hitachi E-20HR E20HR PLC
Hitachi EFOU-KP EFOUKP Condenser Motor 100W 100V 50/60Hz
Hitachi EFOU-KP EFOUKP Condenser Motor 100W 100V 50/60Hz
Hitachi HFD516CI 61X4546 Floppy Disk Drive
Hitachi HFD516CI 61X4546 Floppy Disk Drive
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- 销售:叶工
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