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
ProFace 358020701 AST3301S1D24 Touchscreen
ProFace 391001704 GP4106W1D LCD Display
Pro-face Digital GP477R-EG11 GP477REG11 Graphic Panel w/ breakage
Pro-face Digital GP477R-EG11 GP477REG11 Graphic Panel w/ breakage
Pro-Face DR2-B121BD PanelStation Operator
Pro-Face DR2-B121BD PanelStation Operator
Pro-face FP2500-T11 FP2500T11 Touchscreen w/ Breakage No Signal AS IS
Pro-face FP2500-T11 FP2500T11 Touchscreen w/ Breakage No Signal AS IS
Pro-face GP2301-LG41-24V 2980070-04 Touch Panel
Pro-face GP2301-LG41-24V 2980070-04 Touch Panel
PROFACE GP270SC2124VP Quickpanel
ProFace GP37W2BG4124V 5" TFT LCD Color
ProFace GP4201TM (Modular Type) Model PFXGM4201TAD TOUCHPANEL
ProFace GP4201TW PFXGP4201TADW Touch Panel
ProFace GP4301TM (Moduary Type) Model PFXGM4301TAD TOUCHPANEL
Pro-Face GP-4401T PFXGP4401TAD Touch Screen 24VDC
Pro-Face GP-4401T PFXGP4401TAD Touch Screen 24VDC
Pro-face GP470-EG11 GP470EG11 Graphic Panel w/ Scratches Defective
Pro-face GP470-EG11 GP470EG11 Graphic Panel w/ Scratches Defective
Pro-face GP477R-EG11 GP477REG11 Graphic Panel w/ Missing Back Cover
Pro-face GP477R-EG11 GP477REG11 Graphic Panel w/ Missing Back Cover
Proface GP570-SC11 GP570SC11 For Parts
Proface GP570-SC11 GP570SC11 For Parts
PROFACE GP570-SC11 GP570SC11 Operator Interface Touch Panel HMI
PROFACE GP570-SC11 GP570SC11 Operator Interface Touch Panel HMI
Proface GP570-TC11 GP570TC11 Graphic Panel As Is
Proface GP570-TC11 GP570TC11 Graphic Panel As Is
Proface GPH70-LG11-24V GPH70LG1124V Teach Pendat DC24V 12W
Proface GPH70-LG11-24V GPH70LG1124V Teach Pendat DC24V 12W
Pro-face PFXGM4301TAD Front Module
Pro-face PFXGM4301TAD Front Module
Pro-face PFXGM4301TAD Touch Screnn Panel
Pro-face PFXGM4301TAD Touch Screnn Panel
Pro-face PFXGP4402WADW GP-4402WW Touch Panel
Pro-face PFXGP4402WADW GP-4402WW Touch Panel
Pro-face PFXGP4601TAA GP-4601T Analog Touch Panel NO POWER AS IS
Pro-face PFXGP4601TAA GP-4601T Analog Touch Panel NO POWER AS IS
Pro-face PFXGP4601TAD GP-4601T Analog Touch Panel
Pro-face PFXGP4601TAD GP-4601T Analog Touch Panel
ProFace PFXZXMA31 Cable 3m for Use with MMS Un
Proface PL6700-T11-WN01F PL6700T11WN01F Panel Computer As Is
Proface PL6700-T11-WN01F PL6700T11WN01F Panel Computer As Is
Pro-face Proface GP2301H-LG41-24V 3080028-03 Touch Panel Cut Cable 24VDC 0.625A
Pro-face Proface GP2301H-LG41-24V 3080028-03 Touch Panel Cut Cable 24VDC 0.625A
ProFace XYcom 5015T/R2 Panel
ProLicht TBD2/AS.0200.24/E6 DIN Rail Power Supply
Promess UFM:374148 w/ 4-09.4-20R.93-1QA
Promess UFM:374148 w/ 4-09.4-20R.93-1QA
Prominent beta/4 BT4a1602SST200UA000000 Soleniod Driven Pump
Prominent beta/4 BT4a1602SST200UA000000 Soleniod Driven Pump
ProMinent CNPA1601PVT200D01 Concept Plus Solenoid Driven Diaphragm
ProMinent CNPA1601PVT200D01 Concept Plus Solenoid Driven Diaphragm
Prominent D1CAD0L34001G000E Dulcometer Fluid Control
Prominent D1CAD0L34001G000E Dulcometer Fluid Control
Prominent Fluid Controls CONB0308PP1000A001 230V 16W w/ Breakage & Cut Cable
Prominent Fluid Controls CONB0308PP1000A001 230V 16W w/ Breakage & Cut Cable
Proquip Inc 550354000 037820 Frequency Synthesizer 2
Proquip Inc 550354000 037820 Frequency Synthesizer 2
Proquip Inc 550364000 67268 Board
Proquip Inc 550364000 67268 Board
Pro-Star STI 01-79439-140 0179439140 Programmable LED Intensity Controller
Pro-Star STI 01-79439-140 0179439140 Programmable LED Intensity Controller
Protect 6504 40MHz Oscilloscope w/o handle
Protect 6504 40MHz Oscilloscope w/o handle
PRS-3260D PRS3260D Board AS IS
PRS-3260D PRS3260D Board AS IS
Prufer Hoffmann 178388 P KW 33/98
Prufer Hoffmann 178388 P KW 33/98
PS800 DC Power Supply
PS800 DC Power Supply
PSC 350201-00001-RF 35020100001RF SP400RF Charger
PSC 350201-00001-RF 35020100001RF SP400RF Charger
PSI 175C-03 PIN TRM 175C03 Power Supply
PSI 175C-03 PIN TRM 175C03 Power Supply
PS-X-23 PSX23 AC100-110V DC 280-310V Cut Cable 30Days Warranty
PS-X-23 PSX23 AC100-110V DC 280-310V Cut Cable 30Days Warranty
PTS 1044/9 PTS10449 Circuit Board
PTS 1044/9 PTS10449 Circuit Board
PTS 310R203GX-108 310R203GX108 Frequency Synthesizer Made in USA As Is
PTS 310R203GX-108 310R203GX108 Frequency Synthesizer Made in USA As Is
PTS PFF-1073 PFF1073 Module for PTS X10R4N1X-49/X-54
PTS PFF-1073 PFF1073 Module for PTS X10R4N1X-49/X-54
PTS SGC-1144 SGC1144 Module
PTS SGC-1144 SGC1144 Module
PTS-1045/6 PTS10456 Circuit Board
PTS-1045/6 PTS10456 Circuit Board
PTS-1050/4 PTS10504 Circuit Board
PTS-1050/4 PTS10504 Circuit Board
PTS-1052/6 PTS10526 Circuit Board
PTS-1052/6 PTS10526 Circuit Board
PTS-1065/0 PTS10650 Circuit Board
PTS-1065/0 PTS10650 Circuit Board
Pulizzi 125303 / TPC 884-2518 8842518 Power Controller
Pulizzi 125303 / TPC 884-2518 8842518 Power Controller
Pulizzi Z-Line 1545 PC 874-A/1545 Remote Power Control Box w/ Cut Cable
Pulizzi Z-Line 1545 PC 874-A/1545 Remote Power Control Box w/ Cut Cable
Pulnix TM-7CN TM7CN Compact Monochrome Camera w/ 1-60189, 1-6010, 1-60920
Pulnix TM-7CN TM7CN Compact Monochrome Camera w/ 1-60189, 1-6010, 1-60920
Puls CP388.111FE CP388111FE Power Supply
Puls CP388.111FE CP388111FE Power Supply
Puls CP388.111FE CP388111FE Power Supply 280W
Puls CP388.111FE CP388111FE Power Supply 280W
Puls Dimension XT40 XT40.241 XT40241 Semi Regulated Power Supply DC 24V
Puls Dimension XT40 XT40.241 XT40241 Semi Regulated Power Supply DC 24V
Puls PIC120.241C PIC120241C Power Supply AC 200-240V w/ Breakage
Puls PIC120.241C PIC120241C Power Supply AC 200-240V w/ Breakage
Puls SL20 SL20.514 SL20514 Power Supply DC 45V/10.5A
Puls SL20 SL20.514 SL20514 Power Supply DC 45V/10.5A
PULS SLV20.200 Buffer Module
PulScale Linear Scale Encoder w/ EM0IHB006A Amplified Unit 5V
PulScale Linear Scale Encoder w/ EM0IHB006A Amplified Unit 5V
PULSE QT20.481 Power Supply 3Phase, 48V 10A 480W
Pumster LSS-150 LSS150 Air Driven Liquid Pump
Pumster LSS-150 LSS150 Air Driven Liquid Pump
Pushtechs PS-900 PS-900-201000 Digital Temperature Controller
Pushtechs PS-900 PS-900-201000 Digital Temperature Controller
PW-330ATXE-12V PW330ATXE12V Switching Power Supply
PW-330ATXE-12V PW330ATXE12V Switching Power Supply
PWB 00915-0013-0001 0091500130001 Board
PWB 00915-0013-0001 0091500130001 Board
PWB 00915-0022-0001 Board
PWB 00915-0022-0001 Board
PWB 500487 REV 3 PWA 500488 Board
PWB 500487 REV 3 PWA 500488 Board
PWBEL01E3 PWB-EL01E3 Board
PWBEL01E3 PWB-EL01E3 Board
PXI Comtel 207-01409 FG-ML2 Board
PXI Comtel 207-01409 FG-ML2 Board
Pycon 04-PRT336 04PRT336 Isa 96 Channel Scanner
Pycon 04-PRT336 04PRT336 Isa 96 Channel Scanner
Q-Check Digital Readout Coordinate Functions
Q-Check Digital Readout Coordinate Functions