1747-L541

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描述

1747-L541

因PC機(jī)軟硬件資源豐富、產(chǎn)量大、價(jià)格低且質(zhì)量高,所以為廣大技術(shù)人員所熟悉和認(rèn)可。家用電腦逐步普及,目前,PC機(jī)占通用計(jì)算機(jī)95%以上。這是工業(yè)PC熱的基礎(chǔ)。搞工控的專家和技術(shù)人員自然想賦予PC總線更高的使命,擬讓它在過程控制、制造自動(dòng)化及樓宇自動(dòng)化等方面扮演重要角色。作為與DCS、PLC成鼎足之勢的IPC市場在擴(kuò)大,尤其是在我國。IPC機(jī)箱中插入各種高性能的CPU卡、RAM、ROM/FLash電子盤、各類外設(shè)卡及工業(yè)I/O卡,便構(gòu)成了一個(gè)工業(yè)過程控制IPC硬件系統(tǒng)。嵌入式PC和嵌入式計(jì)算機(jī),嵌入到設(shè)備內(nèi)部,提供用戶接口,管理數(shù)據(jù)輸入、輸出和指導(dǎo)設(shè)備工作的計(jì)算機(jī)。目前,中國在嵌入式設(shè)計(jì)中使用最多的還是80386和80486,這種CPU性能價(jià)格比高,有InTel、IBM、Cyixs、AMDT TI等著名CPU制造商支持。豐富的軟件(包括操作系統(tǒng)、開發(fā)工具和應(yīng)用軟件)支持。嵌入式PC能在惡劣環(huán)境下(如高溫、潮濕和震動(dòng)等)長期可靠工作。嵌入式PC平均無故障時(shí)間(MBTF)為1000~150000h,而臺(tái)式機(jī)僅為10000~15000h。硬件、軟件和工業(yè)PC差不多。

 

LiNbO3 10G optical modulator EOM (2 lot) NEW

agilent e4861a w/ 2 X e4862a 2.67 G gen mods 81250a

tf-sata-ne-xp tf-sata-fe-xp tek sata hardware

40G BERT SHF mp1800a me7750a me7760a me7780a

LiNbO3 10G optical modulator (500 lot) NEW, EOM

hp 8958a cellular, good condition

mg3670b 2.25GHz NEEDS REPAIR sold as-is, w/ 4 options

1480 sumitomo 1462nm 180mw pump laser 100 lot NEW

J7241A N2X 1-port OC-192/STM-64 XM Test Card,1550nm

mp1777a 10G jitter analyzer

agilent e4866a 10.8Gbit 81250a parBERT generator

hp 8155a 1550 nm laser source w/modulation

dsa70804 dsa70804b dpo70804 dso90804a dsa90804a LOADED!

dsa70804 dsa70804b dpo70804 dso90804a dsa90804a LOADED!

dsa70804 dsa70804b dpo70804 dso90804a dsa90804a LOADED!

LiNbO3 10Gb optical modulator NEW (10 lot)

1480 alcatel 1462nm 180mw FBG pump laser 100 lot NEW

tek TLA7AA4 /4S/3P 136-Channel LA 2GHz 32Mb/120MHz

81250a 43.2 GHz parBERTe4805b e4861a e4863a e4862a

TEK TLA7016 w/ 4 X TLA7AA4 /8S 235MHz, 8MB

AGILENT N4220B P A Probe for PCI express e2960a n4220a

agilent N1737a option 30 OC3/STM1 unit

agilent N1737a ATM test set

34 Ch Mictor-on-PCB to P6860 Compression Adapter

hp 8922p /10 with 83220e

optical mount w/dual adjusters

optical mount w/dual adjusters

LiNbO3 10Gb optical modulator EOM NEW 2 lot

melles griot 3 axis mount w/motorized micro-adjusters

smiq06b /b1 e4438c

JCA48-4111B1 RF Amplifier 4-8.6GHz NEW 34dB Gain c-band

8 lot of tek p6860 probes 34-Channel High Density Com

etek jdsu fdk 2 stage isolator WDM filter 4000 lot NEW

melles griot 3 axis mount w/manual micro-adjusters

anritsu md8480c 1BTS/WCDMA/HSDP?A+

AGILENT N4220B P A Probe for PCI express e2960a n4220a

jdsu ts-170 w/cont + oc3/12 stm1/4 ts-30

d3186 10/70 mp1763b 12.5G PPG mp1763c 71612b mp1761b

ts-30 jdsu innocor multirate ts-70 1310nm 2007 vintage

p6860 probe 34-Channel High Density Com

melles griot optical mount w/adjuster

LiNbO3 10G optical modulator (125 lot) NEW, EOM

hp 8958a cellular, good condition 10 lot

LiNbO3 10Gb optical modulator EOM NEW 1 lot

LFE Corporation PDS-504 Plasma Cleaning Tool

LiNbO3 10G optical modulator (1000 lot) NEW, EOM

agilent 16702b /003 tla7012 16902a 16902b 16804a 16754a

LiNbO3 10G optical modulator EOM NEW (100 lot)

infrared analysis gas cell 6ft. long/ 1.5ft diam

500 lot single stage isolator, TAP, WDM, FILTER NEW

agilent e4861a w/ 2 X e4863a 2.67 G analyze mods 81250a

anritsu k222b 40GHz (f) – (f)

agilent e4805b 2.67GHz clock module 81250a

FDK YM-6060-ZT1 2 stage isolator NEW 1000 lot

agilent e2951a protocol analyzer for InfiniBand 1x

fsp7 7GHz fsp13 fsp3 fsu8 8561ec e4443a mint winXp

anritsu mg3681a /2/11/40a/41a 3GHz WCDMA e4432b e4433b

agilent 16754a 68CH.600MHz/4GH?z LA card 16753a 16755a

LiNbO3 10Gb optical modulator NEW (10 lot)

8901b modulation analyzer rear connectors needs repair

tek tmscab3x probe

marconi 2955 test set good condition

aria optical fibre SC to FC Dx, MM 50/125um, 1m NEW

aria optical fibre SC to FC Sx, MM 50/125um, 1m NEW

hp 908a 50 ohm terminator (3 lot)

md8470a CDMA2000/1xEVDO winXp multi-sector/ca?rrier

AGILENT N4220A P A Probe for PCI express e2960a

SHF 5002a 50Gbit demux mp1802a mp1804a mp1812a

SHF EA40G mp1776a 81250a mp1800a ont-512 mp1595a

LiNbO3 10Gb optical modulator lithium niob EOM NEW 4lot

LiNbO3 10G optical modulator (250 lot) NEW, EOM


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當(dāng)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(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時(shí)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(jī)器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動(dòng)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(xué)會(huì)一種至于其它的學(xué)習(xí)起來也就簡單了。