LLS3008现货 in stock! 欢迎来电咨询~！！

LLS3008,

LLS3008

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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。
 

PCL-841

DiVA011-1104-481

R2G-6300P-R

HS6250

MC-03F037B

DAQ-2501-005

1492-SPM3D040 MCB Supplementary Protector 4 A

软启动器 3RW44462BC44

20AC037A0AYNANC0 PowerFlex 70 AC Drive 20A

GC-8459-SR-MT SYSINT SW 12 MO LIC

HE300DNT100 DeviceNet Interface board for AF300E$

IC600KD513RR Amber OptiBasic Operator Interface Terminal/ 12 inch CRT

IC647HSTES15KM Historian Enterprise Server 15000 Points (M4 Key)

IC648MNT036 Annual Software Maintenance for LM90-30 Standard Serial Communications

IC694ALG392CA Conformal Coated Output module analog 8 points, voltage/current.

IC756SDV000J-912 1DV Dev - Solaris Op Sys Jap v9.12

MicroLogix 1200 System D1762-RM001EENP MICROLOGIX 1200 AND 1500 INSTR. SET REF. MANUAL

PLC-5/1771 System 1771-RTP4 HIGH RESOLUTION ISOLATED ANALOG SERIES

Distributed I/O 1794-IE8 ANALOG INPUT MODULE, 12 BIT, 8 POINT

Communications 9399-WAB32LUG RSLINX LITE USER'S GUIDE

Support 6223-52VDLR SUPT REINSTATEMENT CONTRACT FOR 622352VDL

Support 9358-BPC03R SUPT REINSTATEMENT CONTRACT FOR 9358BPC03ENE

Support F1771-IFESERB FIRMWARE UPGRADE FOR 1771-IFE I/O MODULE

RSI Software Products 9324-RLD000FRE RSLOGIX 5000 SERVICE EDITION, FRA

RSI Software Products 9301-2SE350JPU2R RSVIEW32 RUNTIME 1500-100K UPGRADE OUT-SUPT (JP)

RSI Software Products 9358-HSTS2500U2 UPGRADE: IN-SUPT: HISTORIAN 300 TO 70K TAG

Motion Control 8720SM-015S2EBS3 15 KW/41.5 AMP, 460 VAC, AC MOTOR WITH SNS60

829-1-0 Thumbwheel Assembly. 1 Digit, 0 True. Dust Seal

IC200MDL244 INPUT 240VAC ISOLATED, 8 POINTS

IC697CMM742 Ethernet Inferface for Series 90-70, Type 2

MTR-1324-E-A-E-SRR Stepping Motor Nema34 Encoder Splashproof

Z44C742172-001 Alpha i-series PSM power supply module 200V control power flying lead cable (25 feet)

20BD096A3ANNAND0 PowerFlex 700 AC Drive 96 A 75 Hp 20B

20G11NC3P5AA0NNNNN PowerFlex 755 AC Packaged Drive

22F-D6P0N103 PowerFlex 4M-2.2 kW (3 HP) AC Drive

NWBP85002 Quantum ASSY BRIDGE PLUS

294D-FD4P2Z-G1-SB Variable Frequency Drive

S82F-3024 220VAC，容量：300W输出 24V 14A

1756-TBNH 可拆卸式端子块（20个螺丝夹）

PXIe-6537

PCI-1784U

PC2U-530P-X2S

BPC1875A

MPM UP2000轴控制卡PC-271

W26361-W75-Z4-02-36

1492-PDLM1 Marking Strip

通讯处理器 6GK7443-1EX11-0XE0 CP443-1 以太网，ISO，TCP/IP

2098-DSD-005X Ultra 3000 0.5 kW Servo Drive

FG-100FF/M Proficy Process Systems Foundation Fieldbus/Modbus Gateway from Softing

GFK-2073 Bus Conversion Unit (10.5 inch and 12.1 inch QuickPanel Ethernet Series) Insta llation Guide

IC220PWR001 POWER TERMINAL, 24VDC (REQUIRES 1 IC220TBK087)

IC647DMS010 DataMart 10 PA Connections

IC647ROC010M ROC:Fisher Remote Operations Controller for 50 Units

IC693MDL390CA Conformal Coated OUTPUT module 120/240 VAC 2A 5 point, isolated per point.

IC756CDV010K-98 DV Draw Development on Compaq True64, Korean, Version 9.8

MSI-PROD-SV-43 Product Mang Server Software-43

PLC-5/1771 System 1785-CHBM CONTROLNET 1.5 HOT BACKUP MEMORY CARTRIDGE

Distributed I/O 1790-T0W8X LDX I/O, 24VDC, 8 RELAY OUT EXPANSION, TERM BLK

Communications 1785-TR10B2 AUI TO THIN WIRE ENET TRA

Operator Interface 2711-NMH1 PV1200/1200E MOUNTING CLIP

Support 9305-RSVADDCITR SUPT REINSTATEMENT CONTRACT FOR 9305RSVADDCIT

Support 9324-RLD300PTS SUPT RENEWAL CONTRACT FOR 9324RLD300PT

DeviceNet Products 9355-WABENE RSLINX PROFESSIONAL - ENGLISH

RSI Software Products 9301-2SE3400FRU5 RSVIEW32 RUNTIME 5K-32K UPGRADE IN-SUPT (FR)

RSI Software Products 9371-RSWD1U2 RSWIRE DES JIC PROF ACAD TO STDAL UPG IN-SUPT:

Motion Control 1326AB-B410G-S2L MOTOR,SERVO,460V,2.7NM,5000RPM,SINGLE,IP67

2125-230 Greyline OS, 4 Line, (20) 5MM Chars, VFD, Quick Connect, 230VAC, NEMA 4

HE697RTM700 TRU Master Module 90-70

IC690CDR002 InfoLink CD-ROM Documentation, single-user license+ media

QPK2D100S2P/B QUICKPANEL COLOR 6" STN BLANK

TDP-150RR DataPanel 120x64 Pixel LCD Display w/Keypad & Function keys

20BC3P5A3AYNACC0 PowerFlex 700 AC Drive 20B

20F1AND361AN0NNNNN PowerFlex 753 AC Packaged Drive

22B-D012N104 PowerFlex 40- 5.5 kW (7.5 HP) AC Drive

140DRA84000C Quantum 继电器输出, 16点, NO, 2A/点, CC

284E-FVD2P3Z-10-RR-3-DB-SB-EMI EtherNet Variable Frequency Drive

E3Z-D82 1m 扩散反射光电开关．晶体管输出　pnp 电源12-24V

ADAM-4080 2ch计数/频率输入模块

PXI-4071

W26361-W65-X-04

SUN SPARCengine 4559-08 501-4559

HANNSTAR nv-4 94V-0

AIMB-340-00A1

PCB-A623-88.73

1492-MCBA390 90 A Ul489 Miniature Circuit Breaker

1494V-DS600 Disconnect Switch

软启动器 3RW44586BC44

CBL-RKLK-10 Target rack linker cable

GF-3016R Connecting FlashCable to Chatillon DFGS RS232.

IC200UDD212 28 point PLC,(16) 12VDC In, (12) 12VDC Out 0.70 A, 12VDC Power Supply . Battery (IC200ACC403) is required for data retention. Battery not i ncluded.

IC646TPR000 ProServer Unlimited I/O Point Runtime System

IC647OPMM OPM:Opto 22 Mistic

IC693ALG392LT High Density Analog Output (8 Channels) (LT)

IC752DPJ003RR Datapanel J+ with Advanced software, 256x64 LCD with EL backlight. Va rious sizes of text, bitmaps, bar graphs, real time clock. With Real T ime Trends & Host Communications. Includes integrated keypad for data entry. No touch capability.

IC800VMTBC005 VersaMotion amplifier I/O breakout terminal board and 0.5 meter cable

SLC/1746 System 1747-UIC CONVERTER USB/DH-485

Industrial Computers 6186-M17AL VERSAVIEW 17 INCH MONITOR, TEMPERED GLASS

Application-specific products 1404-M405B-CNT 1404-M4 CONTROLNET PM3000 24V P.S.

Operator Interface 2711-T6C2L1 PV600 COLOR TOUCH, DH485

Support 9301-2SE3100ITS SUPT RENEWAL CONTRACT FOR 93012SE3100IT

Support 9380-RSBAR500R SUPT REINSTATEMENT CONTRACT FOR 9380RSBAR500

DeviceNet Products 1734-TBCJC SCREW TERMINAL BASE CJC SPRING TERMINAL BASE CJC

RSI Software Products 9301-2SE3200PTU1 RSVIEW32 RUNTIME 150-300 UPGRADE IN-SUPT (PT)

RSI Software Products 9358-BPCNT30U2 UPGRADE: IN-SUPT: RSBATCH PC-BASED 10 TO 30

Motion Control MPL-B4520P-RJ24AA MOTOR,SERVO,6.1 NM,5000RPM,RSLVR,460V,BRK,9.5KG

Motion Control 2090-SCVG1-0 SERCOS FBR CABL,CONN,STNDRD PVC JKT,GLASS,1.0M

GFK-1886A ViewStation/ControlStation CE Iix (10") HW User's Guide

IC646MED010 CIMPLICITY Machine Edition Demo 10 Pack

MTR-1231-N-D-E-0 Stepping Motor Nema23, Series Wdg

QPICBAE0000 QP 10.4 In TFT, Ethernet, CF Card, 110 VAC, Blank Label

20BC030A3AYNANA0 PowerFlex 700 AC Drive 30 A at 15 kW 20B

20F11NC015JA0NNNNN PowerFlex 753 AC Packaged Drive

21G1ALC567JN2NNNNN-ND-P3-P14 PowerFlex Air Cooled 755 Packaged Drive

2711P-RFK15 PanelView Plus Accessory

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

C200HW-BI081-V1 扩展机板?可安装8个I/O单元

PCI-1716 250KS/S,16位，16路高分辨率多功能数据采集卡

PCI-6517

ISP-768LV4

PC-DVR-G31 G41

EFRP-S2753 EFRP-S753

P5/6X86 SBC

ELEC5M-08

1492-L4-OR IEC Term Blck 6.1x62x35.7mm Spr Clp

1494C-DJ644-A4-B-D-E 400 A Flange Mtd Cable Switch

软启动器 3RW44273BC36

BC647OEM0401B OEM Edge Program Renewal - Historian

GC647PATABB0 Proficy PAT - Driver For Ethernet-Coupled Abb Bomem Ftir Spectrometers - Assist Support

IC200MDD842LT MIXED 24VDC POS LOG OUTPUT 0.5A GRP WITH ESCP 16PT / INPUT GRP 16PT (L T)

IC646NMX000 MODBUS TCP/IP Communications

IC647M32M M32:Moore MYCRO 320 Independent Computer Interface

IC670MFP100RR Micro Field Processor

IC697MDL653RR 24 Vdc Input, Positive/Negative Logic (32 Points)

IC800SLMCONKITVLB Connector kit for 3.5 kW to 5 kW S-series servo motors with brake

ControlLogix/1756 System 1751-SLBA SYNCHLINK FIBER BASE BLOCK

Industrial Computers 6182H-15BEH4B VVCE 1500 KEY/TOUCH, EXT MEM, ENET, AC

Process Control 1757-REDPLXOPC REDUNDANT PROCESSLOGIX OPC SERVER

Operator Interface 2711P-ST15K PANELVIEW PLUS 1500 KEYPAD STARTER KIT

Support 9326-AD10APS SUPT RENEWAL CONTRACT FOR 9326AD10APENE

Support 9371-EDDL2R SUPT REINSTATEMENT CONTRACT FOR 9371EDDL2

ControlNet Products 1734-TB3Q10 TEN 12-POSITION IP20 SCREW TERMINAL BASES

RSI Software Products 9301-2SE240FRU2R RSVIEW32 WORKS 300-32K UPGRADE OUT-SUPT (FR)

RSI Software Products 9358-B60U1 UPGRADE: IN-SUPT: RSBIZWARE BATCH 03 TO 60

Motion Control MPL-A430P-MJ24AA MOTOR,SERVO,5.42 NM,5000RPM,MULTI,230V,BRK,8.2KG

Motion Control 2090-UXNFDN23-K03 CABLE,ULTRA,NON-FLEX, MOTOR FEEDBACK,N,SKW,3M

CBL-155 Cable. Allen Bradley ML-1000 Micrologix (RS-232)

IC610MDL158RR 24Vdc Source Out, w/Removable Term. Block, w/LEDs (16 pts)

IC800SLCBZ100 Brake Cable, 30-750 W SL Servo Motor with Brake, 10 Meters

OC647IFHAVM iFIX Optn: High Availability (M4 Part)

20AD3P4C3AYYANC0 PowerFlex 70 AC Drive 3.4 A at 2 Hp 20A

20DD022A0EYNANANE PowerFlex 700S AC Drive 20D

20P41AB110RA0NNN PowerFlex DC Drive 230V AC 30 HP

2711-NV5 PV600 Key Key Touch Antiglare Overlay

280-PWRM24A-M4 ArmorConnect 4 Meter M24 Patchcord

3G3RV-A4150 NEW 24KVA 31 15KW 3相AC380-460V/50HZ/60HZ

6EP1 332-1SH41 单相220VAC输入,输出24VDC,2.5A

NI 9151

WAFER-8522-600-R10

CPCI-3538

AI-LOGIX DP6409

LMB-845GV IBS-820H

ROCKY-318-M4-R3-JP

17-106-172010 PROX-1720LFS

1492-SPM3C100 MCB Supplementary Protector 10 A

软启动器 3RW40472TB05

BC646MPH001 Logic Developer PDA Single Liscense with SAFE

GC647AEC025 GC Efficiency Client 25 Pak

HMI-CAB-C90 CABLE PLC-2 PROGRAM PORT

IC641SWP715 GMR Phase 3 System and Configuration Software

IC647IFCLNTSRO050M iFIX iClientTS Read Only 50 PK (M4 Part)

IC660EBD101 Electronic Assembly for IC660BBD101

IC695STK002 RX3i Power PACkage 2 Starter Kit includes RX3i and QuickPanel View 6 inch STD with software (one each IC695CPE305/ IC695CHS012/ IC69 5LRE001/ IC695PSA040/ IC695ETM001/ IC694ACC300/ IC694MDL940/ IC754VSI06STD/ BC646MQP001/ IC646MPP001 and DC power)

IC756WRE099K-23 DataViews Runtime for Windows 50-99, Per User, Korean, Version 2.3

FlexLogix System 1794-OV16 FLEX I/O 24V DC 16 POINT SINK OUTPUT MODULE

PLC-5/1771 System D1785-6.8.9 REF.GUIDE CONNECTING PLC-

Process Control 1757-PLXSR100 PLX 100 POINT REDUNDANT SERVER LICENSE

Operator Interface 2711P-T10C15B1 PV PLUS 1000, TOUCH, CNET, AC PS, STD MEM

Support 9324-FWRTENS SUPT RENEWAL CONTRACT FOR 9324FWRTEN

Support 2707-NP2R SUPT REINSTATEMENT CONTRACT FOR 2707NP2

Support F1785-L40LSERB FIRMWARE UPGRADE FOR 1785-L40L PLC5 PROCESSOR MODU

RSI Software Products 9301-2SE2303ESE RSVIEW32 WORKS 1500 WITH RSLINX (SPANISH)

RSI Software Products 9701-VWSS000DEU2 RSVIEW SE 100 TO UNLTD DISP UPGRADE (GERMAN)

RSI Software Products 9399-RL53GRFR RSLOGIX 5 GETTING RESULTS GUIDE(FRENCH)

Motion Control 1394C-SJT05-C MODULE,SYSTEM,5KW,IMCS,NO RIO,NO AXIS LINK

BC646MDE075 Logic Developer - PC & View Development/Runtime (HRT) 75 I/O

IC300OCS042 OCS with 2x20 LCD Display and with 16-key keypad. Built in I/O no expansion. 16 DC Inputs (12/24vdc), 12 DC Outputs (5/12/24vdc, 0.5A neg. logic with ESCP). No network interface

IC752SKT016 DATAPANEL 240E STARTER KIT

MTR-3T13-G-R-0-M-S MTR series metric servo motor with resolver and shaft seal

ZA06B-6130-K201 CX19A or CX19B connector for BSVM1-20i or BSVM1-40i Beta i series amplifier

20CD590B0ANNBNA0 PowerFlex 700H AC Drive 590 A 500 Hp 20C

20G1AGC260JN0NNNNN PowerFlex 755 AC Packaged Drive

25A-E1P7N104 PowerFlex 523 0.75kW (1Hp) AC Drive

2711P-T7C21D8S-B PanelView Plus 7 Standard 700 Brandless

6SE6440-2UD41-1FB1 110KW

SRCa3931-02 热保护交流接触器 0.48-11A

PCA-6010VG

PCM-3353F

NSNK-001

MXG-9140

FSP250-60ATV(PF)

CONTEC PC-686E(PC)H-LV

8001-4145

1492-SPM1C320-N MCB Supplementary Protector 32 A

通用型变频器 6SE6 430-2UD42-5GB0 250 KW,,326 x 1533 x 545

20AC043A3AYNAEG0 PowerFlex 70 AC Drive 43 A at 22 kW 20A

GC646IFCLNTCRO010 GCC iFIX iClient Read Only 25 PK Keyless Runtime Version

HE660SER160 Discontinued Part. Check with GE IP on migration path.

IC600LR648RR 32K/16K Combined Memory

IC647HSTES50KM Historian Enterprise Server 50000 Points (M4 Key)

IC655ALG567RR Analog Output (-10V + 10V, 2 Channels)

IC694CHS392CA Conformal Coated 10 slot I/O expansion base.

IC756SDV001E-99 DV Development - Solaris Op Sys Addt'l User, English, Version 9.9

MicroLogix 1500/1769 System 1764-24BWA ML 1500 BASE 24V DC IN / RELAY OUT / AC POWER

PLC-5/1771 System 1771-AF1 FIBER OPTIC CONVERTER MODULE, STAND-ALONE

Distributed I/O 1794-IP4 4-CHANNEL 12/24V PULSE COUNTER INPUT MODULE

Communications 9399-WABOUG RSLINX OEM USER GUIDE

Support 9310-2CV5R SUPT REINSTATEMENT CONTRACT FOR 93102CV5

Support 9358-BRE01R SUPT REINSTATEMENT CONTRACT FOR 9358BRE01ENE

Support F1771-KGM FIRMWARE UPGRADE FOR 1771-KGM COMMUNICATION MODULE

RSI Software Products 9324-RLD0U6PTE RSLOGIX 5000 SERVICE ED TO FULL UPG, PTG

RSI Software Products 9301-2SE350ZHU1R RSVIEW32 RUNTIME 32K-100K UPGRADE OUT-SUPT (ZH)

RSI Software Products 9358-MTRCK03U1 UPGRADE: IN-SUPT: RSBW MATERIALTRACK 1 TO 10

Motion Control 8720SM-018S2FBS2 18.5 KW/47.1 AMP, 460VAC,AC MOTOR WITH SRM60 ENC.

840 SLDERLSS Field CONN Adapter. Converts 16 Conductor Ribbon Cable to 16 IND. WIRES

IC200MDL741 OUTPUT 24VDC POS LOGIC 0.5A PER PT (1 GROUP OF 16) W/ESCP 16PT

IC697VAL232 Analog Input, 32 Channel, jumper selectable for jumper selectable for 0 to 5VDC, 0-10VDC, +/-2.5VDC, +/-5VDC, +/-10VDC. 16 bit resolution.

MTR-1331-J-E-D-E-0 MTR series NEMA 34 stepping motor with series winding connection and encoder

ZA06B-0061-B203 B2/4000is servo motor with 128k serial encoder

20BD125A3ANNAND0 PowerFlex 700 AC Drive 20B

20G11ND077AA0NNNNN PowerFlex 755 AC Packaged Drive

22F-RF6P0-AS PowerFlex 4M EMC Filter Kit