1609-U500NS現(xiàn)貨

早在2000年，澳大利亞馬盧奇污水處理廠就曾遭遇到攻擊，在前后三個(gè)多月的時(shí)間里，總計(jì)約100萬升未經(jīng)處理的污水直接經(jīng)雨水渠了公園、河流等自然水系。此番行為直接了當(dāng)?shù)卮罅亢Ｑ笊锼劳?，污水臭氣熏天，給所在區(qū)域帶來嚴(yán)重生態(tài)災(zāi)難。 2003年1月，美國(guó)俄亥俄州Dis-Besse核電站和其他電力設(shè)備受到SQLSlamme蠕蟲攻擊，在數(shù)小時(shí)內(nèi)網(wǎng)絡(luò)數(shù)據(jù)傳輸量劇增，該核電站計(jì)算機(jī)處理速度變緩、參數(shù)顯示和控制計(jì)算機(jī)無法運(yùn)作。 彼時(shí)的入侵事件就已為工控防護(hù)敲響了警鐘，但真正拉開保衛(wèi)工業(yè)信息序幕的則是臭名昭著的“震網(wǎng)”事件。 2010年6月，震網(wǎng)Stuxnet被發(fā)現(xiàn)，它是個(gè)專門定向攻擊真實(shí)基礎(chǔ)設(shè)施的“蠕蟲”。其利用當(dāng)時(shí)微軟尚未發(fā)現(xiàn)的幾個(gè)漏洞，成功偷襲了伊朗Natanz核電站，造成大量離心機(jī)損毀；此后的2012年，美國(guó)加州的Chevron石油公司對(duì)外稱，他們的計(jì)算機(jī)曾受到該震網(wǎng)病襲擊；隨后，美國(guó)BakerHughes、ConocoPhillips和Marathon等石油公司也相繼發(fā)表聲明稱，其計(jì)算機(jī)也感染了震網(wǎng)。他們發(fā)布警告，一旦侵害了真空閥，就會(huì)造成離岸鉆探設(shè)備失火、人員傷亡和生產(chǎn)停頓等重大事故。

單片機(jī)內(nèi)部?jī)?nèi)置的定時(shí)器和I/O接口是不可缺少的一個(gè)部分。定時(shí)器使用方便，控制方式很靈活，精度完全能夠滿足一般工業(yè)控制的需要。單片機(jī)的I/O系統(tǒng)類型豐富，具有很強(qiáng)的輸入輸出能力，定時(shí)器和I/O的特性也是單片機(jī)區(qū)別于普通計(jì)算機(jī)的一大特色。
　　單片機(jī)的開發(fā)早主要是處于匯編級(jí)的開發(fā)，這樣，為單片機(jī)開發(fā)程序還是比較復(fù)雜的應(yīng)用。雖然單片機(jī)的指令系統(tǒng)和普通計(jì)算機(jī)系統(tǒng)的指令非常類似，但它也有自己特殊的指令。比如MCS系列單片機(jī)的位尋址就是一個(gè)特有的尋址方式，這也增強(qiáng)了該類型單片機(jī)在處理布爾代數(shù)時(shí)候的能力。除此以外，單片機(jī)的指令格式也比較特殊。單片機(jī)的主要的開發(fā)工作都集中在接口技術(shù)，也就是為單片機(jī)進(jìn)行擴(kuò)展外部功能。單片機(jī)的接口技術(shù)主要包括了并行接口，串行接口，數(shù)模轉(zhuǎn)換器和模數(shù)轉(zhuǎn)換器以及接口的擴(kuò)展技術(shù)。通過這些擴(kuò)展工作，單片機(jī)就獲得了交互的能力，也使得內(nèi)部的處理能力得到有效的發(fā)揮。單片機(jī)發(fā)展到今天，出現(xiàn)了不少**語言的開發(fā)工具，這些系統(tǒng)通過仿真，在更高的平臺(tái)上進(jìn)行快速的開發(fā)，也為單片機(jī)的廣泛應(yīng)用鋪平了道路。

APC SC620I USPP SC620I
APC AP7990 APC 5.7k VA Switched Rack PDU - 24 x NEM - power distribution strip
APC SU700NET USPP SU700NET
APC BR24BPG BUCK-UPS BATTERY PACK 24V 372 VAh For BR1500s BX1500 APC Back-UPS
APC Low Voltage RM Metered PDU 15Amp 120v AP7831 NEW
APC AP7722 Automatic Transfer Switch AP-7722
APC Replacement Battery Cartridge #11 (RBC11)
APC AP7941 24 outlet Switched rack power distribution unit 200V, 208V, 230V
APC AP7893 Rack PDU Metered Zero U
APC AP7894 Rack PDU Metered Zero U
APC Multi-Platform Analog KVM 16-Ports AP5202
RBC12 Replacement Battery #12 American Power Conversion-APC
APC AP7941 24-Outlet Switched Rack PDU W Mntg Brackets
APC AP7941 24-Outlet Switched Power Distribution unit
American Power Conversion APC Battery Symmetra PX SYBTU1-PLP C10 NEW
APC InfraStruXure Manager Server AP92200
ACF502 208-230V SX Roof Fan Tray American Power Conversion-APC
NEW SET 4 AUTOCLAVABLE AccuPette PIPETTE, PIPETTER, PIPETTOR &Rack+Free Shipping
APC SmartUPS Genuine Replacement Battery Cartridge RBC7 700XL 1000XL NEW!!
(AB01) CONTROLLER ADVANCED,KAIJO APC-A PUMP WORKING
New batteries - APC 2200 XL
APC AP7832 Rack PDU Metered Zero U
APC SC1500 1500VA 865W UPS
Lot of 4 APC AP7862 Metered Rack PDU
100X APC Signaling UPS USB to RJ45 RJ50 Router PC Cable
APC SMC1500 Smart UPS C 1500VA LCD 120
ALBRECHT CT40 32APC MILLING CHUCK CAPACITY 3/4 - 1 1/4
AP7832 APC 24-Outlet Power Distrubution Unit Strip 885-1935
APC AP7582 Bagic Rack PDU
RBC25 Replacement Battery #25 American Power Conversion-APC
AP7920 Rack PDU Switched 1U 12A/208V American Power Conversion-APC
APC RM Vertical Rack PDU Basic - ZeroU 5.7kW 208V Output AP7564 New!!
Presonus APC88 - 8 Channel Compressor / Limiter / Gate - VERY CLEAN - SEE PHOTOS
APC NA110P302 NSFP NA110P302
APC APCRBC105 Replacement Battery #105
APC AP5017 17" LCD MONITOR KEYBOARD MOUSE KVM RACKMOUNT RACK MOUNT 1U W/ CABLE
APC Metered Rack 2880VA PDU AP7832
APC AR8127BLK 19" Rotating Keyboard Drawer
SUA750 APC Model 750 Smart-UPS Battery
APC Metered Rack 2880VA PDU 120V 30A NEMA L5-30P 0U 0U
APC SMART-UPS SC450RM1U 450VA 280W 4 OUTLETS UPS

1609-U500NS

ADEPT TECH 30332-00395 NSPP 3033200395
ADEPT TECH 10338-00190 USPP 1033800190
ADEPT TECH 30330-31000 USPP 3033031000
ADEPT TECH 10338-00180 USPP 1033800180
ADEPT TECH 10150-23000 USPP 1015023000
ADEPT TECH EXC31A331A01AD?-04 USPP EXC31A331A01AD?04
ADEPT TECH 10330-11150 USPP 1033011150
ADEPT TECH 10133-21000 USPP 1013321000
ADEPT TECH 10300-11110 NSPP 1030011110
ADEPT TECH 10330-00200 USPP 1033000200
ADEPT TECH 10332-21000 USPP 1033221000
ADEPT TECH 10332-00600 USPP 1033200600
ADEPT TECH 10320-33018 USPP 1032033018
ADEPT TECH 100 USPP 100
ADEPT TECH 10330-15200 USPP 1033015200
ADEPT TECH 10300-11110 USPP 1030011110
ADEPT TECH DIO NSFP DIO
ADEPT TECH 10310-58020 NSFP 1031058020
ADEPT TECH 10315-00940 USPP 1031500940
ADEPT TECH 10841-00500 NSFP 1084100500
ADEPT TECH 90310-48000 NSFP 9031048000
ADEPT TECH 10338-51000 NSPP 1033851000
ADEPT TECH 90310-48050 USPP 9031048050
ADEPT TECH 10330-00800 NSPP 1033000800
ADEPT TECH 10332-00800 NSPP 1033200800
ADEPT TECH DIO NSPP DIO
ADEPT TECH 20840-13400 NSFP 2084013400
ADEPT TECH 10330-00800 USPP 1033000800
ADEPT TECH 10332-00800 USPP 1033200800
ADEPT TECH 10330-00400 NSPP 1033000400

1609-U500NS

APW MCLEAN 28-0226-003 USPP 280226003
APW MCLEAN M13-0116-G1014?H USPP M130116G1014H
APW MCLEAN 17-0216-G009 USPP 170216G009
APW MCLEAN 33-0326-G014 USPP 330326G014
Hoffman APW/McLean Electronic Air Cond M17-0216-G009 * * WARRANTY * *
APW MCLEAN HE-24 USPP HE24
Hoffman APW/McLean Electronic Air Cond M17-0216-G009H?* * WARRANTY * *
HOFFMAN APW MCLEAN M13-0116-G1014?H 120VAC 4A 1000 BTU QUANTITY!!!
APW MCLEAN XR200416012 NSFP XR200416012
APW McLean M13-0116-G1014?H AIR CONDITIONER
APW Mclean Electronic Enclosure Air Conditioner M17-0216-G009H _ M170216G009H
APW Hot Dog Display Warmer Model DS1A Very Good
APW MCLEAN HX-2616-101 USPP HX2616101
APW MCLEAN TFP61UL12 NSFP TFP61UL12
APW Wyott Mobile Plate Dispenser's (4) in GOOD SHAPE
APW MCLEAN CCS14ELLG USPP CCS14ELLG
HOT DOG ROLLER GRILL, APW Wyott HR-50S, 30 1/2"W - Slant Top 120V w/Sneeze Guard
APW Wyott Hot Dog Grill Roller Type Model # HR 20 Excellent Condition
APW Wyott Champion Char-Rock Broiler GCRB-24H
APW MCLEAN M17-0216-G009H 115V ELECTRONIC ENCLOSURE AIR CONDITIONER
APW McLean Electronic Enclusure Air Conditioner M13-0116-G1014?H _ M130116G1141H
APW MCLEAN XR-2926-001 NSFP XR2926001
APW WYOTT CTCW-43 Refrigerated Commercial cold well, expo cooler
APW Wyott Champion Gas Hotplate GHP4H
APW Wyott Champion Gas Hotplate GHP-4H-CE
Superior AMERICAN PERMANENT WARE/APW COMMERCIAL FOOD WARMER restaurant
APW McClean Electronic Enclosure Air Conditioner HB16 0916-013 NEW
LOT OF 6 APW OVERHEAD WARMER REMOTES & CABLES 76485
APW Wyott Roll Warmer BW50
Hoffman APW/McLean Electronic Air Cond M13-0116-G1014?H * * * WARRANTY * * *
Hoffman APW/McLean Electronic Air Cond M13-0116-G1014 * * * WARRANTY * * *
APW MCLEAN T-FP41UL12 NSFP TFP41UL12
KEB COMBIVERT SR25APW FNFP SR25APW
Cables To Go APW SWING OUT WALL MOUNT 16128 Support up to 100lbs Heavy-Duty
McLean APW Electronic Enclosure Air Condtioner HB16-0916-013
APW MCLEAN T10EMC NSFP T10EMC
APW MCLEAN TFP61SS NSFP TFP61SS
APW MCLEAN TFP61 NSFP TFP61
APW MCLEAN T-FP41UL12 USPP TFP41UL12

1609-U500NS

?

?

?

?