SGD7S-330A00A002

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描述

SGD7S-330A00A002

安全性證明
? ? 要證明系統(tǒng)的安全性，需要確定寫操作過程中數(shù)據(jù)容易損壞的時刻。(讀操作從本質上來說是安全的。讀操作期間不會對EEPROM頁面進行寫操作，因此數(shù)據(jù)不會被損壞。)確定了這些易損時刻后，只需要再確定一個恢復過程。如果恢復機制涵蓋了所有可能的數(shù)據(jù)損失情況，而且如果我們假定在任何一個可能破壞EEPROM寫周期的事件之后，都將首先執(zhí)行校驗/清理周期(例如上電)，那么系統(tǒng)就是安全的。
? ? 在大多數(shù)串行EEPROM器件中，一個寫操作首先將頁面的每位數(shù)據(jù)都置為已知值，然后將所有需要改變的位設置為需要的值。因此在掉電時，中斷的寫操作極有可能破壞該頁的所有字節(jié)。通?？梢酝ㄟ^向損壞頁面寫入新數(shù)據(jù)，進而從這一失效事件中恢復出來。但這會失去原來的數(shù)據(jù)。寫操作過程中數(shù)據(jù)容易損壞的時刻如下所述(按發(fā)生的時間順序排列對數(shù)據(jù)域進行寫操作：如果此時發(fā)生電源失效事件，檢查操作不會檢測到錯誤。正在被寫入的寫緩存仍顯示可用狀態(tài)，但可用的緩存不包含有效的CRC值。
? ? 向當前寫緩存寫入狀態(tài)信息：這個操作將狀態(tài)域改為占用狀態(tài)，設定CRC并為寫操作填入頁面地址。如果這個過程被中斷，可能發(fā)生如下情況：(1)狀態(tài)無效，從而導致一個寫操作中斷錯誤；(2)狀態(tài)有效，但CRC錯誤，仍會導致一個寫操作中斷錯誤；(3)狀態(tài)和CRC域有效。在最后這種情形下，系統(tǒng)有未提交處理的寫操作。可以檢測到這一狀態(tài)，因為此時一個緩存將處于占用狀態(tài)而另一個緩存為終止狀態(tài)。如果子系統(tǒng)的其它部分檢查通過，則用戶代碼可通過發(fā)出提交或回退操作繼續(xù)執(zhí)行。無論發(fā)生何種情況，主存儲區(qū)和校驗存儲區(qū)都是安全的。
? ? 前一個緩存狀態(tài)清除為可用狀態(tài)：緩存可能有損壞的狀態(tài)或CRC，而下一個緩存為占用狀態(tài)。這意味著清除該緩存的狀態(tài)時操作被中斷，這種情況下可以執(zhí)行提交或回退操作。
? ? 在寫操作和提交操作之間：只有一個寫緩存將處于占用狀態(tài)，并且通過了CRC校驗。用戶代碼可以請求提交或回退操作。寫緩存、校驗存儲區(qū)和主存儲區(qū)都是安全的。

產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準時發(fā)貨，
保?證售后服務質量，
優(yōu)勢價格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門子，摩托羅拉，安川。力士樂。ACSO，橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

STEC MFC SEC-4400M NH3, 1 SLM, With CALABRATION SHEET

MKS BARATRON 628B13TBE1B, 1000 TORR, CALABRATION SHEET.

MILLIPORE intelliFlow DEVICE NET, N2, 50 ,400, 200 SCCM

Motion Engineering SA-NOV controller lot’s of 2 used

STEC LF-310A, TEPO,0.25 g/min, liquid flow controller

AMAT 0010-0 09416 Etch Chamber RF Match, Untested used

Sieger Gas detection DIGI-CAT and DIGI-CHEM with sensor

Comdel, CPS-500AS RF Power source, AMAT 0190-13320

ENI VL-400 Phase shift controller

AMAT 0010-0 09416 Etch Chamber RF Match, Untested used

Lam 230-140148-308 ESC, 8 inch, look new in Box

SHB INSTRUMENTS MODLE 109 SCOPE

ASYST TECHNOLOGY P/N 01270-001, Cassette loader,

CTI ON-BOARD NETWORK TERMINAL CONNECTOR

Bentek DC PC BOARD, reliance, 03-188758-00, Novellus

UNIT UFC-8160, NF3, SiH4, PH3, lots of 3, used

PB02807 BM18164 DAN 9710094

BM26015/L AB26015/N ASSY, H-STN XORB-100

BM302960000 /D 9923DAN

502622 BM303030200

AMETEK 80440K 94V-0, REV B

19801004800874 JZ29A-01 MEIDEN, MU24A30756

FABR 016763 REV A

DSC-002 99A5 PCB BOARD

PTI4 4896

PROM DISK 66700301

TYLAN 2979M Mass Flow Controller FC-2979MEP5-WM, Gas O2

Phasetronics P1229 Driver, AMAT 0190-05682, 2 unit

Terranova 934 wide range vacuum gauge controller used

LAM 685-094680-001 LIGHT PEN 0080025890 interface PCB

MYKROLIS intelli flow 3XP, N2 1000SCCM lots of 2 used

NOVELLUS ISIOC HI-LO Transfer 02-150755-00 REV.A

ISIOC Power supply, 02-125105-00, 27-053659-00 used

NOVELLUS Controller I/O DUALCAP 27-156710-00, REV.C

MKS BARATRON 624A21TBC, 20 TORR, CALIBRATION SHEET.

MKS BARATRON 627A12TBC, 100 TORR, CALIBRATION SHEET.

MKS BARATRON 122B-11993, 100 TORR, CALIBRATION SHEET.

MFC Mykrolis FC-2902MEP5-T, 5 SLPM, Gas N2 NEW

TYLAN 2900M series MFC lots of 3, and TN2900 MFC, USED

SensArray TC Thermal, Model 482-05-0002

SensArray TC Thermal, Model 482-XX-0002

3 Unit MFC UFC-1100A, N2 1SLM, 300 SCCM, 50 SCCM NEW

DeviceNet Unit MFC UFC-8565, H2 2L, SIH4 30CC lots of 2

Unit MFC UFC-8561C, H2 100CC lots of 2 used

6 NEW AMAT4020-01416 filtr AIR/WTR 1000 PSIG vacuseal

IN USA NDIR OPTI-sense 5000 lots of 2, used,

11 MKS BARATRON 852B61PCJ2GC, 60 PSIA

HP 3335A SYNTHIESIZER / LEVEL GENERATOR

SVG90 Electronic Cabinet spare parts

MILLIPORE IntelliFlow, N2 and SIH4 Used lots of 2

EDWARDS ACTIVE GAUGE CONTROLLER D38650000

MKS i-BARATARON DIGITAL MANOMETER DMA12TCECJNN633

Granville-Phill?ips 275 MINI-convectron lots of 3 used

MKS BARATRON 628B13TBE1B, 1000 TORR, very clean.

MKS BARATRON 629B13TBCJ1B, 1000 TORR, very clean

BELLOWS CYLINDER 80*60STMV lot’s of 2

Perkin Elmer PVD 4400 Sputter Chamber Liner, very clean

STEC MFC SEC-4550, O2, 50 SLM, looks clean

STEC MFC SEF-8460SL, N2, 50 SLM, looks clean

7 Sanyo Denki PM0PA1C3P20 PM DRIVER TYPE C

MKS baratron 127AAX-000100T, 10 TORR lots of 2

MKS baratron 124AA-00010BB, 10 TORR, lots of 2

STEC 4.0g/min TEOS LFC LF-410A-EVD

EFD 1500XL LIQUID DISPENSER and Foot Paddle controller

Sorensen power supply, DCS80-13E, 0-80 V, 0-13 A, used

AMAT 0226-09937 and AMAT 0226-09677 Pump Dist PCB

PureDigital Mass Flow Controller 6256, WF6, lots of 2

UltraGlo vacuum general UV2-11 & UC2-31S01, N2

Aera MFC TC FC-980C, SiH4 1 SLM with Calabration SHEET

INFICON AG, LI-9496 Balzers, CDG100A, 100 TORR

MYKROLIS intelli flow 3XP, N2, 5000 SCCM lots of 3 used

COMDEL LFMN 8/5, novellus P/N 27-296658-00

MKS BARATRON 627B152TBC1B, 500 TORR, looks very clean

828-36-003 Lot of 2 Pole PC, Outer, Short

PHD, 4475-19 ParentD30, 0180502-3-01 Actuator, Mini Rot

899-02-054 Non-Cooled D.S.S. Plate Inset

828-36-002 Pole Pc Outer Long, 828-36-017, 828-20-005

MKS Spectra HPQ2, Microvion plus, Resist torr, lot’s 3

Advanced Energy AE 3155039-000A TCM

SYSMELEC HANDHELD ROBOT & AUTOMATION CONTROLLER NO 181

TYLAN GENERAL, ADAPTORR MODEL AC-4, Millipore AC-4S02

TYLAN GENERAL, ADAPTORR MODEL AC-4, Millipore AC-4

MILLIPORE, ADAPTORR MODEL AC-2, Millipore AC213C REV C

Unit MFC 8565C, N2 750 SCCM NEW with calibration form

UNIT UFC-1660 N2, 50 SCCM, lots of 2, used, as is

STEC 0.2g/min TEPO LFC LF-310A-EVD

Vat Gate Valve, heater, 64248-XE52-1108?, Looks clean

Leybold Turbotronik controller NT 340 M Turbo Pump

CTI CRYOGENICS KEYPAD, FOR ON-BOARD SYSTEM

CTI CRYOGENICS KEYPAD CONTROLLER, FOR ON-BOARD SYSTEM

MKS CDN391R AS01391-21-1 PCB

MKS CDN396R AS01396-6-5 PCB

Asyst SB-731 Robot Pendant Controller, Looks New

Asyst SB-731 Robot Pendant Controller, Looks New

VARIAN WAVEFORM GEN III ASSY 01907110 BOARD

ILLIMINA ASSY 250878 CCA, COMM, ACHIMEDES, 250659 REV A

EMC-1 94V0, BM23475L11R REV B

PRI EMC-1 94V0, BM23475L11R, PC23475 REV B COMP SIDE

Aera Mass Flow Controller FC-PA780c, C4F8 and H2/N2

AMAT ANALOG I/O BOARD 0100-20100 APPLIED MATERIALS

AMAT ANALOG I/O BOARD 0100-20003 APPLIED MATERIALS

AMAT 0190-76005 Board OREGAN MICRO SYSTEMS, REV B

AMAT 0100-20003 AI/O ANALOG I/O BOARD, REV G

AMAT 0100-20100 AI/O ANALOG I/O ASSY BOARD, REV P4

AMAT 0100-20100 AI/O ANALOG I/O ASSY BOARD, REV A

MKS CONTROL VALVE TYPE 153D-4-100-2, THROTTLE VALVE

MKS BARATRON 627B12TEC1B, 100 TORR, looks clean

STEC SEC-4550 MFC, N2, 30 SLM, used

STEC SEC-4550 MFC, N2, 30 SLM, used

STEC SEC-4550 MFC, N2, 40 SLM, used

STEC SEC-7355 MFC, Ar, 50 SLM, used

STEC SEC-4550 MFC, O2, 50 SLM, used

AMAT 0010-76968 OTF centerfinder emitter and 0100-76055

Motorola MVME 340B 01-W3787B01B PCB, 84-W8787B01C

STEC MFC PV-1000, Piezo valve PV-1501MC NEW

STEC MFC SEC-4600MO, N2, 100 SLM Used

BM06240 R/J, COMP SIDE REV F PB02807 PRI BOARD

18800045 SRV/S06D06 SCHALTER MICRO- mit ROLLE

BM19261L01/C

SHB INSTRUMENTS MODLE 109 SCOPE

Astec Power supply MP1-3Y-2Q-4NN-0?0, Part # 73-690-0267

PORTER Liquid flow controller P2000-C010, 10.0 ML/MIN

MASS FLOW CONTROLLER MC-2100 NEW

MASS FLOW CONTROLLER MC-4400 NEW

MASS FLOW CONTROLLER MC-2200 NEW

Mass Flow Meter 1258B, Argon, lots of 2 used

SMC NP420-DN1 VV5Q11-ULB98018?1

TYLAN GENERAL CDL-21S06-EMC 0-100 T0RR RANGE, lots of 3

UNIT 1660 UFC-1660 He 10 SLPM with calabration sheet

Novellus Controller I/ 0 Daulcap Firmware Version 4.8

SMC NP420-DN1 VV5Q11-ULB00004?7

SMC NP420-DN1 VV5Q11-ULB98018?0

MASS FLOW CONTROLLER 5877, He, 10 SCCM lots of 2 USED

UNIT MFC UFC-8165, 10L, Gas N2, NEW in box

UNIT UFC – 7000 industrial MFC, H2, 1.00 SLM, NEW

BOC EDWARDS interface module, U20000521 used

UNIT UFC-1660 CL2 200 SCCM and O2 50 SCCM, lots of 2

UNIT UFC-1660 CL2 200 SCCM and O2 1 SLPM, lots of 2

MKS Baratron 627A01TBC, 1 TORR with connection valves

Granville Phillips 370149 Vacuum Gauge controller, used

USED Kollmorgen Magnet Driver AMAT 0190-70060

MKS MFC DPCA12T51CB00, AMAT 3030-10854, 50 sccm He

EDWARDS Active gauge D14549000

Tylan 2950 MFC FC-2952M 4V metal, Co, CHF4, lot’s of 2

SEMI GAS SYSTEM AUTOMATIC SWITCHOVER AND CYLINDER SCALE

2 STEC MFC SEC-4400MC N2, WF6, used

AMAT 0020-25836 PVD Clamp Ring 8 inch, very clean

Smart Cap Key – JSR – 1860 – 35, 4A-9-8, Lot of 15

BODINE ELECTRIC 42A3FEPM-E4 GEARMOTOR, 130 VOLTS, CLEAN

MILLIPORE FC-2902MEP-T, SIH4, 1.5 SLMP NEW

3 Mass Flow Meter Tylan FM-360, Argon and Air, untested

STEC PV-2000 MFC Piezo valve PV-2103MC NEW in box

STEC MFC SEC-4550M, N2, 40 SLM used

IRVINE OPTICAL CORPORATION 136PC1562

CT AURAVISION 94V-0 E92481

Tylan General CMLA-21 100 TORR CAPACITANCE GAUGE

LINTEC Liquid flow controller, TEOS, 0.1g/min used

Horiba Stec LF-310A-EVD TEPO 0.1g/min Liquid mass meter

Tylan 2900 MFC FC-2900M-EP, N2, 20 SLPM, lot’s of 2

Tylan 2900 MFC FC-2900M-EP, O2, 20 SLPM, lot’s of 2

RF MATCHING UNIT VSP-0971

Aera MFC FC-7800CD, SiH4 200 SCCM looks very clean

CTI-Cryogenics On Board P300 Module 8113160G001, 2 unit

TEMP CONTROLLER INR-244-402 WITH Omron BU SO4X

AMAT 0010-04926 HV Module CESC, untested

Jennings UCS-200-15S and CVCJ-1000-3S, looks very clean

Tylan General CMS-11S02, 0-10 TORR, lots of 2

ZYMARK MODULE EIA 112200

SEMITOOL 2601800 , 16750-505-0016

AMAT AFC 550, H2, 30 SLPM used

VERIFLO CORP GAS VALVE 45200254

APPLIED MATERIALS VALVE AIR ACTUATEO DIAPH

THERMOCOUPLE TYPE K 39 INCH VAC /39 INCH AIR KF40

PARKER VERIFLOW VALVE, 9444A0PLPN0SFSF?F, 48200029

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣，選擇放心，售后無憂大量現(xiàn)貨，當天順豐發(fā)貨！
主營：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，力士樂等各大品牌的DCS系統(tǒng)配件，機器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”（不管能不能看懂，先了解個大概，以便學習編程時查找）；
2、由位控邏輯入手，逐漸增加定時、計數(shù)等條件，把或、與、非關系理順；
3、進而練習整數(shù)運算、實數(shù)運算、類型轉換；
4、量程轉換、PID調節(jié)回路的建立及P、I、D參數(shù)的理解（最好是有個物理回路驗證，比如變頻器+電機+測速傳感器）；
5、循環(huán)、順序、跳轉等程序控制（盡量避免跳轉，非跳不可時也是跳的越近越好）；
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列，GE 卡件 模塊 驅動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌，由于PLC的基本框架大同小異，學會一種至于其它的學習起來也就簡單了。

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