USAHEM-03-TE25

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描述

USAHEM-03-TE25

主控制卡是整个系统的核心控制单元，完成系统的控制任务。而冗余技术各个设计要点在此得到充分应用。互为冗余的两块主控制卡软件、硬件完全一致，它们执行同样的系统软件和应用程序，在工作/备用冗余逻辑电路的控制下，其中一个运行在工作状态（工作卡），另外一个运行在备用状态（备用卡），如图2所示。工作卡和备用卡之间具有公共的冗余逻辑控制电路和专用的高速对等冗余通讯通道，同时也可以通过I/O总线和过程控制网络进行信息交互或故障诊测。互为冗余的主控制卡都能访问I/O和过程控制网络，备用模式下的主控制卡执行诊断程序，监视工作卡的状态，通过周期查询工作卡件中的数据存储器，接受工作卡发送的实时控制运行信息。备用处理器可随时保存最新的控制数据，以保证工作/备用的无扰动切换，但工作模式下的主控制卡起着控制、输出、实时过程信息发布，等决定性的作用（具有发言权）。冗余技术的关键在于实现信息同步，而信息同步的最终目的是为了实现冗余部件之间无扰动切换。我们把信息同步的方法分为“自然同步”和“强制同步”。
    互为冗余的两个主控制卡作为一个整体与外界交换信息（网络通讯、I/O通讯），共享进入这个整体的输入信息，这就是冗余部件的同一性（也可以称为单一性）。对外输出信息时工作卡掌握主动权，代表这个整体发言，即冗余的协同性。通俗地讲，两个互为冗余的部件，对于用户使用和外部控制对象而言，可被视为一个整体。
    为了保证互为冗余的两个卡件具有平等获取外部信息（I/O通讯、网络通讯）的权利，冗余部件具有同样的通讯接口，保证卡件内输入信息的一致。冗余的两块卡件有各自的通讯通路，只要保证相同的输入信息在两个通信通路上同时进行传输，两块卡件就可以获得相同的信息。这种凭借外部设备实现输入信息的同步称为“自然同步”。“自然同步”发生在冗余系统和外部设备之间。工作卡掌握主动权，代表整体发言，并通过冗余通信将各种状态信息传送给备用卡，达到控制任务的同步，这就是“强制同步”。“强制同步”通过冗余通信使备用卡内部控制状态与工作卡保持一致，它发生在互为冗余的卡件之间。根据变量特性的不同，具体采用的同步方式也各不相同.

产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。

主营DCS系统配件
机器人系统配件
大型伺服系统配件
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Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA   专业销售进口DCS  PLC系统备件模块 15天包退换 一年质保 大量现货  国内实力库存商家

Tektronix Tempo TV220 CableScout TDR Fault Locator

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TDS 360 TDS360 Digital Oscilloscope 200Mhz/ 1Gs/s

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Tektronix 496 Tek Spectrum Analyzer *Read Notes* Wrks

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THS720, THS 720, THS720A Oscilloscope 100Mhz/500Gs/s

TEKTRONIX 492 SPECTRUM ANALYZER OPT 1-2-3

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Tektronix 7D15 255 MHz Universal Counter / Timer Plugin
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additional free NIST recalibration within one year

Tektronix TDS 220 TDS220 oscilloscope, NIST-cal’d
additional free NIST recalibration within one year

Tektronix TSG130A NTSC Multiformat Generator

Tektronix 7L13 Spectrum Analyzer

Tektronix TDS350 Digital Oscilloscope, 200 MHz

TEKTRONIX 492 SPECTRUM ANALYZER OPT 1-2-3

Tektronix TekScope THS720P 100MHz Oscilloscope THS720
@CALIBRATED@SA​LE@100 MHz/ DIMM/ 500 MS/s@90DayWarr​anty@

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Tektronix 2467 350 MHz 4-channel scope, NIST-certified
additional free NIST recalibration within one year

VX4730 Tektronix VXI 16 Bit D/A Converter, Rev: 1.4

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SONY TEKTRONIX AFG2020 ARBITRARY FUNCTION GENERATOR
250MS/s synthesized FUNCTION GENERATOR WITH OPT 02

Tektronix SD24 Dual-Channel TDR/Sampling Head SD-24

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Tektronix P7313Differenti​al Probe Accessory 020-2636-02

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Tektronix AG7 Audio Generator For the TG700 TEK-AG7 NEW

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Tektronix VX1410 VXI 13-slot Mainframe (Intelliframe)

Tektronix AM503S TM502A,AM503B,A​6302 Current Probe Set

Tektronix VX4332 40-Channel 2-Wire Relay Scanner Master

Tektronix P7260 Active Probe

TEKTRONIX 2467B Oscilloscope, Analog. 400MHz 4 Channels

Tektronix TDS2012 100 MHz OScope w/COM Module

Tektronix TCP202 Current Probe ” Working & Calibrated”.
One-day shipping available

Tektronix AM503S current probe TM502A+AM503B+A​6302

Tektronix ASG 140 Audio Signal Generator

Tektronix DM 5110 Programmable DMM Multimeter Plug-In
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Tektronix TLA714 Logic Analyzer Color Portable Mainfram

Tektronix SC 502 15 MHz 2 Channel Oscilloscope Plug-In
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Tektronix 1420 NTSC Vectorscope

TEKTRONIX VXOA41 OPTICAL ATTENUATOR

TEKTRONIX P6247 1GHz DIFFERENTIAL PROBE + ACCESSORIES

Tektronix THS730A 200 MHz Scope DMM Digital 1GS/s

Tek 7854 400 MHz, Used Waveform Processing Oscilloscope

Tektronix SG504 w Head Leveled Sine Wave Generator

Tektronix OF192 Fiber Optic Multimode Bandwidth Tester
Tested, 30-day warranty/14-da​y right of return

Tek Tektronics 11A72 2 Ch 1GHz Vertical Plug-In

Tektronix 1780R Video Measurement Set

CDS / Tektronix 73A-308 80 Relay/High Voltage Logic Dri

TEKTRONIX ST2400 SDH/SONET SET WITH OPTION

Tektronix TLA7M4 Logic Analyzer Module,136 Ch.,8 Probes
Guaranteed fully working. New 1yr calibration 14day RoR

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB

Tektronix 11402-2D-4D Digital Oscilloscope Mainframe.

TEKTRONIX OC48SAA

TEKTRONIX P6209 4 GIG ACTIVE

Tektronix 7104 with 4 plug-ins

TEKTRONIX DIGITAL STORAGE OSCILLOSCOPE TDS 2014C

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Tektronix 11301 Progr. Oscilloscope w/ 11A34 & Opt. 1T
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Tektronix VX4820 Digital Test VXI Module

Tektronix CSA 803A CSA803A 50GHz Signal Analyzer 803

TEKTRONIX ASG 140 AUDIO SIGNAL GENERATOR ((MakeOFFER!))

Tektronix Tek 1910 Digital Generator **GUARANTEED**

Tektronix SJ300E Sonet SDH Jitter Wander Analyzer

TEK Tds 524a 2ch 500mhz.color digitizing oscilloscope
opt 13,1f,2m working , 10days return if not happy ,[

Tektronix TAS485 TAS 485 analog scope, calibrated
additional free NIST recalibration within one year

Tektronix 2465A 350 MHz 4-channel scope, NIST-certified
additional free NIST recalibration within one year

Tektronix 485 Dual Trace 350 MHz Portable Oscilloscope

Tektronix 2236 100 MHz oscilloscope, NIST-calibrated
additional free NIST recalibration within one year

Tektronix TLA7AA4 CS 2Mb 136Ch Logic Analyzer Module
One-day shipping available

Tektronix P6703 O/E Converter

Tektronix 2247A OSCILLOSCOPE W/V.METER/COUNT​ER/TIMER

Tektronix 11403A-1S-4D 3 GHz Color Digitizing Oscillosc

Tektronix 1720 Vectroscope for NTSC System Vector & Ste

Tektronix P6249 Active Probe, DC to 4 GHz

Tektronix TLA7N4 136 Channel Logic Analyzer Module

Tektronix P6015A 75Mhz High-Voltage Probe

Tektronix TDS360 Digital Oscilloscope

Tektronix 7D20T Power Module Mainframe for 7D20
One-day shipping available

TEKTRONIX 1755A Waveform Vector Monitor WORKS GREAT!

Tektronix THS710A Scopemeter Digital Oscilloscope 60MHz

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Tektronix G9F-2746-00 Cage 80009 Acquisition Processor

TEKTRONIX 7854 OSCILLOSCOPE w/ Opt 2D + AMP + TIME BASE
4 Slot Module w/ Dual Trace 7A24 + 7A26 + 7B80 + 7B92A

Tektronix THS730A Digital Oscilloscope 200MHz Scope DMM

Tektronix DMM4050 6.5 Digit Resolution Multimeter
Comes with CD Manual, Documentation, USB Cable, Leads
One-day shipping available

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Tektronix TDS430A 400 MHz, Digital Storage Oscilloscope

Tektronix ADA400A Differential Preamplifier

TEKTRONIX TLA7N4-6S 2 GHZ LOGIC ANALYZER TLA704 TLA711

Tektronix 11801C

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Tektronix Model 7854 4 Channel Oscilloscope. With Opt.

Tektronix 11801B 50 GHz Digital Sampling Oscilloscope

Tektronix 015-0310-01 TMS5006 CG5001 SG503 Calibrator

Tektronix 7B92A Dual Time Base Plug-In
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Tektronix TAS475 oscilloscope 4 channel 100 Mz w probes

TEKTRONIX SD-42 6 GHZ HEAD CSA803C 11801C ELECTRICAL

TEKTRONIX P7330 3.5 GHz DIFFERENTIAL PROBE

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Tektronix 11801 Digital Sampling Oscilloscope

Tektronix TSG170D Digital Composite NTSC Generator

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Tektronix TSG170D with 1J

Tektronix ADA400A Differential Preamplifier
Expedited shipping available

Tektronix 760A Stereo Audio Monitor

Tektronix 11403 Digitizing Oscilloscope – 4 Modules

Tektronix CG551AP Programmable Calibration Generator
Calibrated, 30-day warranty/14-da​y right of return

TEKTRONIX CTS 710 SONET TEST SET CTS-710 w/access.

Tektronix TSG271 PAL TV Generator
30-day warranty/14-da​y right of return

TEKTRONIX PS280 DC POWER SUPPLY

Tektronix 2465A DM Oscilloscope

TEKTRONIX TLA714 Logic Analyzer,Color Mainframe,6 Slots
NIST calibration/30​-day warranty/14-da​y right of return

Tektronix TLA7N4/6s Logic Analyzer Module, 136 Ch.
Guaranteed fully working. New 1yr calibration 14day RoR

Tektronix P6042 Current Probe

Tektronix TEK 2467/10 Oscilloscope 4 Ch. 350 MHz

TEKTRONIX 1503B METALLIC TDR CABLE TESTER W/ EXTRAS!
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TEKTRONIX 2337 100 MHZ DIGITIZING OSCILLOSCOPE

Tektronix VX4610 SDH/SONET Generator/Recei​ver
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Tektronix 2465ADV Portable Oscilloscope 350MHz, 4 Ch.
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Tektronix Model: VX4790A arbirary Waveform Generator

Tektronix 1735 Waveform Monitor

Tektronix 1740 WaveForm Monitor w/opt 06 (Reduced!)

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@CALIBRATED@SA​LE@5 to 1080 MHz Range@90 Day Warranty@

Tektronix THS710 THS 710 “TekScope,” NIST-calibrated
additional free NIST recalibration within one year

Tektronix TekScope THS720A 100MHz Oscilloscope THS720
@CALIBRATED@SA​LE@100 MHz/ DIMM/ 500 MS/s@90DayWarr​anty@

Tektronix TDS 310 TDS310 digital scope, NIST-calibrated
additional free NIST recalibration within one year

Tektronix 2232 storage scope with RS232, NIST-certified
additional free NIST recalibration within one year

Tektronix TDS 310 TDS310 digital scope, NIST-calibrated
additional free NIST recalibration within one year

TEKTRONIX ASG-100 AUDIO SIGNAL GENERATOR

Tektronix 2465BCT Oscilloscope, 400 MHz, 4-Channel with

Tektronix 11403 1 GHz Color Digitizing Oscilloscope

Tektronix 1730 NTSC Waveform Monitor

Tektronix HFS9DG2 Four Channel Single-ended output Data

Tektronix AM5030 Current Probe Amplifier

Tektronix TLA7L4 136 Channel Logic Analyzer Card

Tektronix TDS 340 TDS340 digital scope, NISTcalibrated
additional free NIST recalibration within one year

TEKTRONIX DSA601A SIGNAL ANALYZER / OSCILLOSCOPE + AMPS

Tektronix 7D15 Universal Counter Timer Plug-In Module
One-day shipping available

Tektronix THS720A Portable Digital 100MHz Oscilloscope

Tektronix P7240 4Ghz Probe Tested

Tektronix DMM4050 Digital Multimeter
One-day shipping available

Tektronix 012-1614-01 IView External Oscilloscope Cable

Tektronix ADA400A Differential Preamlifier

Tektronix 7A26 Dual Trace Amplifier Amp Plug-In
One-day shipping available

TEKTRONIX P6249 4GHz ACTIVE PROBE AND ACCESSORIES. NEW!
Expedited shipping available

Tektronix DC 5009 135MHz Universal Counter Timer Plugin
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Tektronix DVG1 Digital Video Generator for TG-2000

Tektronix TDS2014B Oscilloscope with Probe

Tektronix 2465B 400 MHz, 4 Channel Used Oscilloscope

Tektronix A6304XL Current Probe With Case

Tektronix VX4372 2 Wire Scanner

Tektronix TDS220 Portable Digital 100MHz Oscilloscope

Tektronix ASG100 Audio Signal Generator
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TEKTRONIX TM-504 WITH A6302, AM503, FG504

Tektronix 012-1614-00 Option 1C iVIEW TLA Scope Cable
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Tektronix P7350 – 5GHz Differential Probe

Tektronix TEK OCP5002 2 GHz Optical Converter PWR Meter

Tektronix TEK 1503C Metalic Cable Tester w Case

Tektronix CSA 803 Touch Screen Comm Signal Analyzer #5

Tektronix P6042 Current Probe ( DC to 50 MHZ )

Tektronix 067-0587-02 Calibration Fixture 7000 series

P6245 Tektronix 1 GHz Active FET Probe

Tektronix 2465 300 MHZ Oscilloscope w P6131 probes

Tektronix 1503B Metallic Cable Tester TDR

TEKTRONIX 1241 LOGIC ANALYER, COLOR AVIONICS

Tektronix TDS220 Digitizing Sccope

TEKTRONIX TLA7AA4 CS LOGIC ANALYZER 136CH 2MB DEPTH #4

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16M DEPTH

TEKTRONIX TLA7AA4 CS LOGIC ANALYZER 136CH 2MB DEPTH #3

Tektronix TDC5 Tunable Down Converter

Tektronix Mpeg ATSC DVB Anaysler AD954

TEKTRONIX OTS90G1 GPIB MODULE 10Gb/s OC192

TEKTRONIX OTS90G1 GPIB MODULE OC192 10Gb/s

Tektronix DAS9200 Digital Analysis System

Tektronix TDS360 200 MHz 2-CH Digital Real-Time Scope

Tektronix SJ300E (Parts Unit)

TEKTRONIX 11301A Counter Timer Oscilloscope

TEKTRONIX WFM90 WAVEFORM/VECTOR​/PICTURE/AUDIO MONITOR!
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED @@@

Tektronix TAS485 200 MHz 4 Channel Analog Oscilloscope

Tektronix 1760A Waveform Monitor

TEKTRONIX TDS 350 2 CHANNEL OSCILLOSCOPE W/OPTS! TDS350
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TEKTRONIX TEKTRONIX TLA520 LOGIC ANALYZE TLA-520

TEKTRONIX DSA602A DIGITIZING SIGNAL ANALYZER W/PLUG INS
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TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #1

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #7

Tektronix 2337 Oscilloscope 100 MHz

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #6

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #2

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #5

TEKTRONIX TLA7P4 1S LOGIC ANALYZER 136CH 2GHz 16MB #3

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TEKTRONIX 2431L 300MHz DIGITAL OSCILLOSCOPE + P6131

专业销售进口DCS  PLC系统备件模块

PLC模块，可编程控制器，CPU模块，IO模块，AI模块，通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗

15天包退换 一年质保 大量现货  国内实力库存商家


选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！
主营：本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

先介绍几点经验。
1、先通读一遍“系统手册”（不管能不能看懂，先了解个大概，以便学习编程时查找）；
2、由位控逻辑入手，逐渐增加定时、计数等条件，把或、与、非关系理顺；
3、进而练习整数运算、实数运算、类型转换；
4、量程转换、PID调节回路的建立及P、I、D参数的理解（最好是有个物理回路验证，比如变频器+电机+测速传感器）；
5、循环、顺序、跳转等程序控制（尽量避免跳转，非跳不可时也是跳的越近越好）；
6、中断、通讯、位置控制....

本人以ABB工业机器人配件DSQC系列和Motorola MVME系列，GE 卡件 模块 驱动器系列为主攻。各位电工朋友可根据自己的条件选择适合自己的PLC品牌，由于PLC的基本框架大同小异，学会一种至于其它的学习起来也就简单了。

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