LRS-57-5-4现货 in stock! 欢迎来电咨询~！！

LRS-57-5-4,

LRS-57-5-4

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　PLC与单片机的差别是：
　　1、PLC是应用单片机构成的比较成熟的控制系统，是已经调试成熟稳定的单片机应用系统的产品，有较强的通用性。
　　2、而单片机可以构成各种各样的应用系统，使用范围更广。单就“单片机”而言，它只是一种集成电路，还必须与其它元器件及软件构成系统才能应用。
　　3、从工程的使用来看，对单项工程或重复数极少的项目，采用PLC快捷方便，成功率高，可靠性好，但成本较高。
　　4、对于量大的配套项目，采用单片机系统具有成本低、效益高的优点，但这要有相当的研发力量和行业经验才能使系统稳定。
　　从本质上说，PLC其实就是一套已经做好的单片机(单片机范围很广的)系统。
　　但PLC也有其特点：PLC广泛使用梯形图代替计算机语言，对编程有一定的优势。你可以把梯形图理解成是与汇编等计算器语言一样，是一种编程语言，只是使用范围不同!而且通常做法是由PLC软件把你的梯形图转换成C或汇编语言(由PLC所使用的CPU决定)，然后利用汇编或C编译系统编译成机器码!PLC运行的只是机器码而已。梯形图只是让使用者更加容易使用而已。
　　如上所说，那么MCS-51单片机当然也可以用于PLC制作，只是8位CPU在一些高级应用如： 大量运算(包括浮点运算)，嵌入式系统(现在UCOS也能移植到MCS-51)等，有些力不从心而已，不过加上DSP就已经能满足一般要求了，而且同样使用梯形图编程，我们可把梯形图转化为C51再利用KEIL的C51进行编译。我们也能发现不用型号的PLC会选用不同的CPU，其实也说明PLC就是一套已经做好的单片机系统。
　　既然如此，当然也可以用单片机直接开发控制系统，但是对开发者要求相当高(不是一般水平可以胜任的)，开发周期长，成本高(对于一些大型一点的体统你需要做实验，印刷电路板就需要一笔相当的费用，你可以说你用仿真器，用实验板来开发，但是我要告诉你，那样做你只是验证了硬件与软件的可行性，并不代表可以用在工业控制系统，因为工业控制系对抗干扰的要求非常高，稳定第一，而不是性能第一，所以你的电路板设计必须不断实验，改进)。当你解决了上述问题，你就发现你已经做了一台PLC了，当然如果需要别人能容易使用你还需要一套使用软件，这样你可以不需要把你的电路告诉别人。你也不可能告诉别人。
　　这样一看PLC其实并不神秘，不少PLC是很简单的，其内部的CPU除了速度快之外，其他功能还不如普通的单片机。通常PLC采用16位或32位的CPU，带1或2个的串行通道与外界通讯，内部有一个定时器即可，若要提高可靠性再加一个看家狗定时器问题就解决了。
　　另外，PLC的关键技术在于其内部固化了一个能解释梯形图语言的程序及辅助通讯程序，梯形图语言的解释程序的效率决定了PLC的性能，通讯程序决定了PLC与外界交换信息的难易。对于简单的应用，通常以独立控制器的方式运作，不需与外界交换信息，只需内部固化有能解释梯形图语言的程序即可。实际上，设计PLC的主要工作就是开发解释梯形图语言的程序。现在的单片机完全可以取代PLC。以前的单片机由于稳定性和抗电磁干扰能力比较的弱和PLC是没有办法相比的，现在的单片机可能已经做到了高稳定性和很强的抗干扰能力在某些领域已经实现了替换。
 

IC676ACC003 Protective Caps - Female (For unused incoming power connectors) - Qty 5

IC752DPA260RR Datapanel 1060IR with infrared touch. 10.4 inch VGA (640x480) active matr ix TFT color display. No bezel - mounts from inside panel. Supports all WinCfg functionality.

MicroLogix 1000/1761 System 1761-CBL-PM02 CABLE: MICROLOGIX 1000 TO PERSONAL COMPUTER

SLC/1746 System 1761-NET-AIC AIC+ ADVANCED INTERFACE CONVERTER

Distributed I/O 1794-ACNR15K CONFORMAL COATED, REDUNDANT MEDIA ADAPTER, CNET

Application-specific products 1404-M605B-DNT MASTER MODULE - PQ 24V POWER SUPPLY DNET COM

Support 6233-5VTLR SUPT REINSTATEMENT CONTRACT FOR 62335VTL

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RSI Software Products 9301-2SE2350JPU2 RSVIEW32 WORKS 300-5K UPGRADE IN-SUPT (JP)

RSI Software Products 9701-VWSTFRU1 RSVIEW STUDIO FOR ME - ENT SERIES UPGRADE (FRENCH)

RSI Software Products 9399-WAB32UGPT RSLINX USERS GUIDE (PORTUGUESE)

Motion Control 8720MC -D180-AA- 180 AMP D CHASSIS DRIVE, ENCLOSURE, LESS OPTIONS

BC646MRB150 Logic PC Runtime 150 I/O

IC300OSW001 Cscape PDA Software with Handspring Visor/Visor Deluxe/Prism Cable

IC754ACC12GAS Gasket for 12 QuickPanel View & Control"

MTR-3T45-H-R-B-M-0 MTR series metric servo motor with resolver and brake

20AC8P7A3AYNAEC0 PowerFlex 70 AC Drive 8.7 A at 4 kW 20A

20DC022A0EYNANANE PowerFlex 700S AC Drive 20D

20G1ALF460AN2NNNNN PowerFlex 755 AC Packaged Drive

25B-D2P3N114 PowerFlex 525 0.75kW (1Hp) AC Drive

2715-T10CD PanelView 5500 10.4 in. Graphic Terminal

FR-A740-5.5K 9.1 KVA 12A 5.5KW

CTT120/480-0 120A 耐压480V

cDAQ-9179

EPIA-PX10000G

PCL-849

EPE-1815VNA-H61

SKYNET ADT-925C

PCA-6002VE

Q965 18204010

1492-SPM1D500 MCB Supplementary Protector 50 A

变频器选件 6SE6 400-0BE00-0AA0 BOP2 操作面板 430

20AC2P1C0AYNANC0 PowerFlex 70 AC Drive 20A

GC646MPM001 Proficy GlobalCare Complete for Logic Developer - PLC Nano/Micro

HE693OIU177 Compact VF OIU powered by 24VDC with Numeric Keypad

IC609SJR121RR Series One Junior 24Vdc Src In/Rly Out, 115Vac Power

IC647HSTSC15KM Server to Server Collector for Historian - Standard Server 15000 Points (M4 Key)

IC660BBA026RR Curr Src Analog Input Block, 24/48Vdc Power, 6 Inputs, Ph B

IC694MDL741CA Conformal Coated Output module 12/24 VDC 0.5 amp 16 points NEG logic.

IC756WDJ009E-23 DV Development Sys VB and Java, English, Version 2.3

MicroLogix 1500/1769 System 1769-ECR RIGHT END CAP/TERMINATOR

PLC-5/1771 System 1771-CE 1771 I/O CHASSIS CABLE FOR 1771-P2 POWER SUPPLY

Distributed I/O 1797-IJ2 2-CHANNEL EX HIGH RESOLUTION FREQUENCY MODULE

Operator Interface 2711P-B6C1D PV PLUS 600 COLOR, KEY/TOUCH, SRIO, DC PS

Support 9323-PA1GR SUPT REINSTATEMENT CONTRACT FOR 9323PA1G

Support 9358-HSTS2400S SUPT RENEWAL CONTRACT FOR 9358HSTS2400

Support F1772-LWSERD FIRMWARE UPGRADE FOR 1772-LW PLC2 PROCESSOR MODULE

RSI Software Products 9324-RLD3U7ENE RSLOGIX 5000, STANDARD TO PRO UPGRADE, ENGLISH

RSI Software Products 9305-RSVADDCDEE RSVIEW32 ACTIVE DISPLAY DEDICATED CLIENT (GERMAN)

RSI Software Products 9358-PMSEE NET PROCESS MONITOR

Motion Control 2092-DA2 DRIVE, 2.4A/7.2A, ULTRA1500 DIGITAL SERVO DRIVE

A06B-0141-B075#7008 AC12/2000 Servo Motor, 32K Serial Encoder

IC200UAR028-24 Qty of 24, 28 point PLC< (16) 120VAC In, (12) Relay Out (2 at 10 amp & 10 at 2 amp), 120V/240AC Power Supply. Battery (IC200ACC403) is required for data retention. Battery not included.

IC752BTS450RR Display Station 1085 - 10.4" active matrix VGA (640x480) resistive touch screen with integrated keypad, Pentium 133, 32MB, 1.2 Gig hard drive, expansion slots, Ethernet, with CIMPLICITY HMI and Win NT

MTR-1362-E-A-E-SRR Stepping Motor Nema34 Encoder Splashproof

ZA06B-0113-B075#7008 B0.5/3000 servo motor with 32k serial encoder

20BD3P4A0AYNANC0 PowerFlex 700 AC Drive 3.4 A at 2 Hp 20B

20G11TC770JN0NNNNN PowerFlex 755 AC Packaged Drive

25-PM1-B011 PowerFlex 520 2.2kW (3Hp) Power Module

990XTS00300 Quantum B200 转换接头

FRN 2. 2E1S-4C 4. 1KVA 5.5A 2.2KW 3相AC380V/50Hz/60Hz

61F-G2 自动供水和排水控制，水位异常高报警 电源:110/220VAC

ATV-31HU30M3XA 3

USB-232/4

PCI-7432

ARCNET PCI20-CXB

INTEK PLUS V3.3

PCI-9111

DAQ-PCI64C

1492-RIFM20F-2 Connection Products

总线插头 6GK1500-0FC00 RS485 总线插头， 12MBd180? ，连接 OP 及 OLM

2099-BM10-S Kinetix 7000 Servo Drive

GA647IFESGCLNTCRN GCA iFIX Optn: ESig & ERec iClient Run

GP-2102NT/FOWSB GagePort Digital NT 2-port input (Fowler OEM) - Sales BOM.

IC5007TAX0030 PanelPC 17 inch Standard Unit Deluxe with Windows XP

IC647HSTAE75KM Alarm and Events Option for Historian - Standard Server 75000 Points (M4 Key)

IC647SSM005 Scheduler Shop Floor Server 5 users

IC693MDL742 12/24 Vdc Output, 1 Amp, Positive Logic (16 Points), Fused

IC756LDV000E-925 "DataViews Development on Intel Linux/Red Hat Op Sys, English v9.25"

Pico Controllers 1760-IA12XOW6I 18 I/O EXPANSION MODULE, AC

PLC-5/1771 System 1771-OAN OUTPUT MODULE, 120V AC, 32 OUTPUTS

Distributed I/O 1791P-16B0 PROFIBUS 24VDC CBLOCK I/O, 16 IN SINKING, BASE

Communications 2760-RB FLEXIBLE INTERFACE MODULE, 2-SLOT, 1771 I/O RACK

Operator Interface 2706-PDH485P DH-485 COMMUNICATION MODULE FOR 2706-P22R

Support 9701-VWSB000AR SUPT REINSTATEMENT CONTRACT FOR 9701VWSB000AENE

Support 9515-RSNHS250S SUPT RENEWAL CONTRACT FOR 9515RSNHS250ENE

EtherNet/IP Products 2711P-K7C4B2 PV PLUS 700, KEYPAD, ENET, AC PS, EXT MEM

RSI Software Products 9301-2SE340ITU2R RSVIEW32 RUNTIME 300-32K UPGRADE OUT-SUPT (IT)

RSI Software Products 9356-PRO2300U6R UPGRADE: OUT-SUPT: RSSQL PROF.300 TO 1500 TAG

Motion Control 1326AB-B740C-S2L MOTOR,SERVO,460V,53.0NM,2200RPM,SINGL,IP67

4162-L-6 4162 CONTINUOUS LENS KIT. FOR (6) 4162s

HMI-KPN-302 QUICKPANEL KEYPAD FOR 10.5"

IC693CPU360RR CPU 360 Module (240K Bytes configurable user memory, 4K I/O, 8 racks), no built-in Serial Ports

SPS-24W-2 24 VDC PS, 1.0A, 85-265 VAC INPUT

TRM-JAUX-10 S2K auxiliary I/O screw terminal breakout board with 10 foot cable

20BD014A0AYNAND0 PowerFlex 700 AC Drive 14 A at 10 Hp 20B

20G11BD1K2AN0NNNNN PowerFlex 755 AC Packaged Drive

22C-B012N103 PowerFlex 400- 2.2 kW (3 HP) AC Drive

140XBP00400C Quantum 背板, 4槽, CC

284S-MTRS22-M6 ArmorStart Spare Parts

H3BA-N8H DC24/AC220, 1.2S-300H 可调，瞬时两开两闭

1746-OW16 16点继电器输出模块 2.5A

PXI-6513

X34PI-1.00

SOM-5786

FSP460-60PFN

FSP300-60GTB

WADE-8656-J2

1492-MS6X12V1-END Connection Products

数字量输入/输出模块SM 6ES7 321-1BL00-0AA0 DI/32 24VDC，光电隔离，40pin 前连接器

行程开关 3SE53122SE12

CP9I-0MEB-0070-AZ Alpha 50HVis shielded motor power cable (7 meter)

GFK-0263 Logicmaster 90-70 Programming Software User's Manual

IC200UEX213 28 point expansion. (16) 12VDC In, (12) Relay Out, 12VDC Power Supply (included IC200CBL501)

IC647ANS001 PA new SFL allows 1 Production Unit in PA plant model to use 1 of the 11 server functions

IC647PDCH025 Ruggedized PDC Historian Base with 2500 Tags

IC693CHS392RR Base, Expansion, 10 Slots

IC754CSL06CTD 6 inch TFT QuickPanel Control/ Loaded/ 24VDC

KIT-GFS-351-CN QP View & Control Workshop Student Kit

SLC/1746 System D1746-UM010BENP BARREL TEMPERATURE CONTROL MODULE USER MANUAL

Distributed I/O 1734-PDN DEVICENET INTERFACE MODULE

Application-specific products 1405-M620-240 MINI POWERMONITOR M620 240V

Operator Interface 2711-T10C20 PV1000 COLOR TOUCH, ENET & RS232 PRINT

Support 9301-2SE3400ZHR SUPT REINSTATEMENT CONTRACT FOR 93012SE3400ZH

Support 9381-PA2500KENS SUPPORT RENEWAL CONTRACT FOR 9381PA2500KEN

DeviceNet Products 1790D-8BV8B DNET LDX ,24VDC,8 UNIV IN/8 SRCE OUT BASE, D-SHELL

RSI Software Products 9301-2SE3303JPE RSVIEW32 RUNTIME 1500 WITH RSLINX (JAPANESE)

RSI Software Products 9358-PBANT30ENE RSBATCH NT FOR PROCESSLOGIX ARCHIVER 30 UNITS

Motion Control MPL-B540K-SK22AA MOTOR,SERVO,19.4 NM,4000RPM,SINGL,460V,16.5KG

Motion Control 2090-UCSR-A300 ACTIVE SHUNT REGULATOR,ULTRA 300W

GQPL2D200C2P QUICKPANEL COLOR 12.1" TFT GE LABEL

IC646MSP005 Logic Developer - State Professional 5 Pack

MTR-3T44-J-R-B-M-0 MTR-Series Servo Motor, Resolver, Metric, 24V Brake

ST-1218 STXi input module 8 points, Positive Logic, 12V/ 24VDC

20BC072A3AYNANA0 PowerFlex 700 AC Drive 72 A 37 kW 20B

20F11RC2P1JA0NNNNN PowerFlex 753 AC Packaged Drive

22A-A1P5N104 PowerFlex 4- 0.2 kW (0.25 HP) AC Drive

281G-F12D-10C-RRG-CBG ArmorStart 280/1 Starter

C200H-DA003 模出单元,8路12位?D/A 1～5V 0～10V -10～+10V

ADAM-3952 导轨安装的50-pin接线端子板，用于PCI-1240

PCIe-6351

HSB-681

BPS-400SP

MHG2-6400P

IMBA-9454G-R10

ACTEL ProASIC3

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1494H-BF3H6 Heavy Duty Fusible Safety Discon Switch

软启动器 3RW44446BC34

BC647TPD300 CIMPLICITY HMI ProServer 300 I/O Development and Runtime System with Proficy GlobalCare

GC647PRTHE050 GlobalCare Complete - Proficy Portal Historian Edition Client Pack 50 Users Ver 3.0

IC200MDL741CA OUT 24VDC POS .5A ESCP 16PT Conf Coat

IC646PDS100 OpenProcess Designer Development S/W

IC647MRA300 View Runtime 300 I/O with USB Hardware key

IC677DBM442 Profibus VersaMax IP Modular slave with (4) 24VDC inputs and (4) 24VDC outputs (2 amp). Module requires IC677PBI001 master in network.

IC697PWR748RR Power Supply, 48 Vdc, 90 Watts

IC800SSI216RP2 16 amp 230 VAC Profibus S2K servo controller for MTR series motors

SLC/1746 System 1747-L524 SLC 5/02 CONTROLLER, 4K MEMORY - DH 485

Industrial Computers 6189-RW4 VVCE COMAPCT FLASH 512MB W/ME

Application-specific products 9358-PBA03ENE RSBIZWARE BATCH FOR PROCESSLOGIX ARCHIVER 03 UNITS

Operator Interface 2711-B5A8L3 PV550 MONO KEY&TOUCH, DH+ & RS232 PRINT

Support 9303-3CS0EFFR SUPP REINSTATEMENT CNTRCT FOR 9303-3CS0EFF

Support 9391-SDVEKR 9391-SDVEK SOFTWARE SUPPORT CONTRACT REINSTATEMENT

ControlNet Products 2711-K5A15L1 PV550 MONOCHROME KEY, CNET & RS232 PRINT

RSI Software Products 9301-2SE2500KOU2 RSVIEW32 WORKS 1500-100K UPGRADE IN-SUPT (KO)

RSI Software Products 9358-BEBNT10ENE RSBATCH / EPROCEDURE FOR NT BUNDLE 10 UNITS

Motion Control MPL-A4540C-HJ24AA MOTOR,SERVO,10.2NM,1500RPM,ENCDR,230V,BRK,13KG(PIN

Motion Control 2090-XXNFMP-S12 CABLE,NON-FLEX,MOTOR FEEDBACK,MP/1326AB,12M

CBL-OIJR-06-RA Serial Cable, Operator Interface Panel (OIP) to S2K, Rt. Ang, 6 Ft.

IC641PCC006 Complete Development System - Unlimited Points

IC800SLT001 SL Amplifier Terminal Block for APM/DSM Interface

PPS-DEMO-01 Proficy Process Systems Demo Kit containing PACSystems RX3i Controller w ith 12-slot base, 24VDC Multipurpose Power Supply, 300Mhz CPU, Ethernet module, RX3i Profibus Master module, Analog Input HART module, 16 Point Input Simulator module and Unive

20B-STD-N PowerFlex 700 Standard Control Board Kit

20DD500A0ENNBNANE PowerFlex 700S AC Drive 500 A 450 Hp 20D

20SF1K0NES PowerFlex 1000 A SCR Bus Supply

2711P-B7C22A9P PanelView Plus 7 Graphic Terminal

280-PWRM35B-M6 ArmorStart Three-Phase Power Media

CPM1A-DA001 2 路模拟量输出 分辨率1/4000 转换速率2.5ms/CH 每个输出通道可独立设置量程 输出：-10～10V 0～10V 0～5V 0～20mA 1～5V 4～20mA

3VU1640-0MM00 10~16A

NI 9475

ROCKY-058HV

ADAM-4013

H8SGL-F

01-w3369f 30-50573-02

6064881C

1492-J4M IEC 1-Ckt Feed-Thru Blk Motor Conn 4mm

1492-SPM3D400 MCB Supplementary Protector 40 A

软启动器 3RW40562BB35

BC646OEM0400 OEM Edge - Historian Kit (Approval Required)

GC647DMC200 GC DataMart 200 Reporting Clients

IC200ALG261 Analog input 15 bit differential voltage 8 channel

IC646IFCLNTCRO010C iFIX iClient Read Only 10 PK Keyless (M1Component Part)

IC647IFPLSRUNLMTC iFIX Plus SCADA Unlimited Server (M1Component Part)

IC660MLD120 Label for IC660BBD120 (Qty 100)

IC697BEM731RR Series 90-70 Genius I/O Bus Controller

IC800APK080 SVU1-80 Alpha series 80 amp amplifier kit

ControlLogix/1756 System 1756-L55M13 LOGIX5555 PROCESSOR WITH 1.5MBYTE MEMORY

Industrial Computers 6182H-7BEH4B VVCE 700, KEY/TOUCH, EXT MEM, ENET, AC

Process Control 9358-BHIST01ENE RSBIZWARE BATCHHISTORIAN - 3 UNITS

Operator Interface 2711P-B15C6B2 PV PLUS 1500, KEY/TOUCH, RIO/DH, AC PS, EXT MEM

Support 9240-MON16R SUPT REINSTATEMENT CONTRACT FOR 9240MON16

Support 6310-MSS 6310-MS SOFTWARE SUPPORT RENEWAL

Support F1794-ACNR15SERB FIRMWARE UPGRADE FOR 1794-ACNR15 I/O MODULE

RSI Software Products 9301-2SE2350U3 UPGRADE: IN-SUPT: RSVIEW32 WORKS 1500 TO 5000

RSI Software Products 9351-DKTSRT INTERCHANGE SOFTWARE FOR MS-DOS RUNTIME

RSI Software Products 9399-WGGUG RSSERVER FOR GE FANUC GENIUS I/O USER GUIDE

Motion Control 8720MC-MCM SPARE MAIN CONTROL MODULE KIT

BC646MRD300 Logic PC Runtime (HRT) 300 I/O

IC300RCS210 Remote Control Station (OCS without Keypad and display) Supports up to 4 SmartStack I/O Boards, full ladder instruction set, and CsCAN Networking.

IC754VKB06MTD Starter Kit - 6" Monochrome QuickPanel View Basic, Touch, 24VDC

MTR-3T55-I-R-B-M-0RR Servo Motor Metric 24V Brake

20AC8P7F0AYNANC0 PowerFlex 70 AC Drive 8.7 A at 4 kW 20A

20DC030A3NYNACGNE PowerFlex 700S AC Drive 20D

20G1ANC205JA0NNNNN PowerFlex 755 AC Packaged Drive

25B-E6P6N104 PowerFlex 525 4kW (5Hp) AC Drive

280-FAM35F Field Attachable Receptacle, Female, M35

FR-F740-5.5K 8.8 KVA 11.5A 5.5KW 3相AC380V/50Hz/60Hz

6ES7 222-1BF21-0XA0 8点24VDC输出

cFP-AIO-610

LY20C390

PS-7270B/ATX

AIMB-742 AIMB-742G2

X9SAE-V

TI XIO2200A FG-E2200-2E1I-B1-01-BC01

DMC-1822

1492-SPM2B100 MCB Supplementary Protector 10 A

软启动器 3RW30141BB14

20AC3P5A3AYNAEC1 PowerFlex 70 AC Drive 20A