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
Qin Wei AEVF 3 Phase Induction Motor
Qin Wei AEVF 3 Phase Induction Motor
Qualidyne 31002BFM Power Supply w/ Rust
Qualidyne 31002BFM Power Supply w/ Rust
Qualidyne 3834 4B5NA1A-1755 4B5NA1A1755 Power Supply 400W U
Qualidyne 3834 4B5NA1A-1755 4B5NA1A1755 Power Supply 400W U
Qualidyne 60108-9EJ-001 601089EJ001 Power Supply
Qualidyne 60108-9EJ-001 601089EJ001 Power Supply
Quantum DLT7000 30-60066-01 Tape Drive 0.7-0.4A
Quantum DLT7000 30-60066-01 Tape Drive 0.7-0.4A
Quantum SDLT 600 SDLT600 Internal Tape Drive AS IS
Quantum SDLT 600 SDLT600 Internal Tape Drive AS IS
Quantum TH5BA-YF TH5BAYF DLT Tape Drive
Quantum TH5BA-YF TH5BAYF DLT Tape Drive
Quantum TH6BE-YF TH6BEYF DLT7000 SCSI Tape Drive
Quantum TH6BE-YF TH6BEYF DLT7000 SCSI Tape Drive
Quantum TR-S23BA TR-S23BA-AZ Powervault 110T External Drive w/o Front Cover
Quantum TR-S23BA TR-S23BA-AZ Powervault 110T External Drive w/o Front Cover
Quest Multilog 2000 Data Logging Gas Monitor
Quest Multilog 2000 Data Logging Gas Monitor
Quintum BX204 Tenor BX Series MultiPath Switch
Quintum BX204 Tenor BX Series MultiPath Switch
QZ-DCC9010 QZDCC9010 Servo Drive
QZ-DCC9010 QZDCC9010 Servo Drive
R&C RC-360W(24V) RC360W24V Power Supply 24V 15A 110/20V 30Days Warranty
R&C RC-360W(24V) RC360W24V Power Supply 24V 15A 110/20V 30Days Warranty
R. STAHL 9477/100812 DOM8 Profibus Relay
R. STEEL 9146/101112 Frequency Transducer
R. STEEL 9160/131161 Transducer Feeder
R. STEEL 9170/101111s Switching Amplifier
R. STEEL 9170/101111s Switching Amplifier
R. STEEL 9170/101211 Switching Amplifier
R. STEEL 9170/101411s Switching Amplifier
R. STEEL 9170/111113 Switching Amplifier
R. STEEL 9170/201011 Switching Amplifier
R. STEEL 9170/201111 Switching Amplifier
R. STEEL 9170/201111s Switching Amplifier
R. STEEL 9170/201411s Switching Amplifier
R. STEEL 9182/105111S temperature transducer
R. Steel 9461/120811 Analog Input Modules
R. Steel 9466/120811 IS1 I/O Modules
R. Steel 9468/320811 Analog Universal Module
R. Steel 9471/101611 Profibus DP Interface for IS1
R. Steel 9475/320862 Digital Output Module
R. Steel 9482/320811 Temperature Input Module
R. Steel CPM9440/150111 Profibus
R. Steel TIM R 08 9480/120811 Temperature Input Module
R.E. Technologies WT5 Watt Transducer 3 Business Days
R.E. Technologies WT5 Watt Transducer 3 Business Days
R+W BK6/150/109XX Metal Bellows Coupling
R+W BK6/150/109XX Metal Bellows Coupling
Racal 407944 REV. B* FSCM 21793 Thermal Controller Defective Fan
Racal 407944 REV. B* FSCM 21793 Thermal Controller Defective Fan
Racal-Milgo Omnimux 162 Advanced Statistical Multiplexer U
Racal-Milgo Omnimux 162 Advanced Statistical Multiplexer U
Racal-Milgo RM-1433 Multipoint U
Racal-Milgo RM-1433 Multipoint U
Racal-Milgo RM-1433 RM1433 Multiplexer Defective AS IS
Racal-Milgo RM-1433 RM1433 Multiplexer Defective AS IS
RAD ASMI31-2/M/230/V35/V110 (D) 6460810000 Access Unit w/ Breakage
RAD ASMI31-2/M/230/V35/V110 (D) 6460810000 Access Unit w/ Breakage
RAD KM2000-LS.2 KM2000LS2 Boards
RAD KM2000-LS.2 KM2000LS2 Boards
Rad RSD-1 5570020000 Digital Sharing Device
Rad RSD-1 5570020000 Digital Sharing Device
Rad RSD-1/B 5570080000 Digital Sharing Device
Rad RSD-1/B 5570080000 Digital Sharing Device
Radiant RAD 6745 Microscope Head
Radiant RAD 6745 Microscope Head
Radio Signal RSMF-450P4 RSMF450P4 Cavity Filter
Radio Signal RSMF-450P4 RSMF450P4 Cavity Filter
Radiometer Copenhagen TITRALAB TIM800 Titration Manager U
Radiometer Copenhagen TITRALAB TIM800 Titration Manager U
RadiSys 60-0470-01 60047001 PCB Board
RadiSys 60-0470-01 60047001 PCB Board
RADVISION L2W-323/4X L2W323/4X PRI Gateway Conferencing Unit 100-240 VAC
RADVISION L2W-323/4X L2W323/4X PRI Gateway Conferencing Unit 100-240 VAC
RAGONOT Malakoff SB4004M11112Z 3000RPM
Ramsey 11-100-05 REV.B 1110005 Circuit Board
Ramsey 11-100-05 REV.B 1110005 Circuit Board
Ramsey Hitech RH6005D Gwebb Load Cell and GWA 125 Board
Ramsey Hitech RH6005D Gwebb Load Cell and GWA 125 Board
Rapid Power Corporation A9-02310 A902310 3 Phase Driver Board
Rapid Power Corporation A9-02310 A902310 3 Phase Driver Board
Rave APS-RV500-P01 APSRV500P01 500W Aero Cool Power Supply 500W
Rave APS-RV500-P01 APSRV500P01 500W Aero Cool Power Supply 500W
Rave SL-3438 Laser
Rave SL-3438 Laser
Rave SL-3438 Laser w/ missing parts
Rave SL-3438 Laser w/ missing parts
Rax Vision 8066 Magnifier Lamp
Rax Vision 8066 Magnifier Lamp
Raytek RAYST3LXU Non Contact Thermometer Made in USA
Raytek RAYST3LXU Non Contact Thermometer Made in USA
Raytheon 586955-1 Rev L Circuit Board
Raytheon 586955-1 Rev L Circuit Board
Raytheon Company MQB72-20M2 Sorensen Power Supplies U
Raytheon Company MQB72-20M2 Sorensen Power Supplies U
RC Network RC8000 Plus RC-8032 32 Slot Data Hubs C
RC Network RC8000 Plus RC-8032 32 Slot Data Hubs C
RCI transducer type 2207
RCP2-C-BA7-I-PM-O-KI RCP2-C-BA7-I-PM-0-KI Robo Cylinder Actuator Controller
RCP2-C-BA7-I-PM-O-KI RCP2-C-BA7-I-PM-0-KI Robo Cylinder Actuator Controller
RD1D-8012 2N3K8012-D RD1D8012 2N3K8012D Board
RD1D-8012 2N3K8012-D RD1D8012 2N3K8012D Board
RE Electronica Industriale REG 50 3FBD REG503FBD DC Motor Drive
RE Electronica Industriale REG 50 3FBD REG503FBD DC Motor Drive
Real Magic 09-700228-01 0970022801 IR Receiver
Real Magic 09-700228-01 0970022801 IR Receiver
Red Lion ARCJ1AZ0 C-Flange Adapter Hess Sensor56C Ring Kit
Red Lion ARCJ1AZ0 C-Flange Adapter Hess Sensor56C Ring Kit
Red Lion ARCJ1B00 Face-Mounted Motor Adapter Kit
Red Lion ARCJ1B00 Face-Mounted Motor Adapter Kit
Red Lion ARCJ1BZ0 Adapter with Hess Sensor 143TC Ring Kit
Red Lion ARCJ1BZ0 Adapter with Hess Sensor 143TC Ring Kit
Reer Argolux As ASE-403 ASE403 Light Curtain
Reer Argolux As ASE-403 ASE403 Light Curtain
REIFA-HYDRO REIFAHYDRO Float Switch Exportation NOB
REIFA-HYDRO REIFAHYDRO Float Switch Exportation NOB
Relay Circuit Board Module 3Business
Relay Circuit Board Module 3Business
Reliance 767.64-00 7676400 800792-95A Board U
Reliance 767.64-00 7676400 800792-95A Board U
Reliance 809.5300D0F 809'53-00 IIOA U
Reliance 809.5300D0F 809'53-00 IIOA U
Reliance Electric 01482-1079-000-05 Servo Motor 88-Z533-T1 w/ Breakage
Reliance Electric 01482-1079-000-05 Servo Motor 88-Z533-T1 w/ Breakage
Reliance Electric 0-58706-3 0587063 Circuit Board C
Reliance Electric 0-58706-3 0587063 Circuit Board C
Reliance Electric E240 240-026-0888 2400260888 Servo Motor Rev.R Made in USA
Reliance Electric E240 240-026-0888 2400260888 Servo Motor Rev.R Made in USA
Reliance Electric KP-H330-BOL KPH330BOL Oven Blower Motor w/ Breakage Cut Cable
