150-F317NBR 150-F317NBR 150-F317NBR 150-F317NBR150-F317NBR 150-F317NBR 150-F317NBR 150-F317NBR
狀態(tài)說明:標(biāo)識和報告設(shè)備的狀態(tài)控制器應(yīng)記下設(shè)備的狀態(tài)供CPU了解。例如,僅當(dāng)該設(shè)備處于發(fā)送就緒狀態(tài)時,CPU才能啟動控制器從設(shè)備中讀出數(shù)據(jù)。為此,在控制器中應(yīng)設(shè)置一狀態(tài)寄存器,用其中的每一位來反映設(shè)備的某一種狀態(tài)。當(dāng)CPU將該寄存器的內(nèi)容讀入后,便可了解該設(shè)備的狀態(tài)。
接收和識別命令:CPU可以向控制器發(fā)送多種不同的命令,設(shè)備控制器應(yīng)能接收并識別這些命令。為此,在控制器中應(yīng)具有相應(yīng)的控制寄存器,用來存放接收的命令和參數(shù),并對所接收的命令進(jìn)行譯碼。例如,磁盤控制器可以接收CPU發(fā)來的Read、Write、Format等15條不同的命令,而且有些命令還帶有參數(shù);相應(yīng)地,在磁盤控制器中有多個寄存器和命令譯碼器等。
地址識別:就像內(nèi)存中的每一個單元都有一個地址一樣,系統(tǒng)中的每一個設(shè)備也都有一個地址,而設(shè)備控制器又必須能夠識別它所控制的每個設(shè)備的地址。此外,為使CPU能向(或從)寄存器中寫入(或讀出)數(shù)據(jù),這些寄存器都應(yīng)具有唯一的地址。
《誠信服務(wù)》《質(zhì)量保證》《優(yōu)質(zhì)售后》《服務(wù)至上》
宇創(chuàng)自動化,打破低價只為長期合作,沒有宇創(chuàng)給不了的價格。
宇創(chuàng)自動化,貨期質(zhì)量我們給您承諾,全新原裝盡在宇創(chuàng)自動化。
宇創(chuàng)自動化,優(yōu)質(zhì)售后航拓為您負(fù)責(zé),質(zhì)量保證請您認(rèn)準(zhǔn)宇創(chuàng)自動化。
宇創(chuàng)自動化,海量現(xiàn)貨就找福建宇創(chuàng),福建宇創(chuàng)只因有你。
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公司名稱:福建宇創(chuàng)自動化設(shè)備有限公司
Fujian Yu Chong automation equipment Co., Ltd.
公司簡稱:福建宇創(chuàng)
公司地址:廈門市海滄區(qū)滄湖東一里508號奧斯卡4號樓502室
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以下是我們公司的優(yōu)勢品牌,僅供參考,還有其他品牌沒一一列出,只要您有需要查找的
都可以發(fā)給我,這邊會第一時間回復(fù)您。
【美國,英維思 Invensys FOXBORO I\A系統(tǒng), Triconex ESD系統(tǒng)】
【美國AB ..1756系列,1785系列,1746系列,1747系列,1771系列】
【瑞士ABB.. 機(jī)器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU】
【法國施耐德140莫迪康昆騰系列處理器,內(nèi)存卡,電源模塊等?!?br />
【德國西門子Siemens MOORE,S5,S7,6DD等】
【美國通用電氣GE..IC693/IC697系列】
【美國Westinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系統(tǒng)備件】
【德國Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動模
塊等?!?br />
【美國Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列】
15天無條件退換,質(zhì)保一年
原裝新品,庫存現(xiàn)貨
折扣優(yōu)惠,低價回饋
24小時熱線:0592-7792226 大量現(xiàn)貨,價格合理,當(dāng)天打款,當(dāng)天順豐,即日到貨。
1、華東地區(qū)(包括山東、江蘇、安徽、浙江、福建、上海);
2、華南地區(qū)(包括廣東、廣西壯族自治區(qū)、海南);
3、華中地區(qū)(包括湖北、湖南、河南、江西);
4、華北地區(qū)(包括北京直轄市、天津直轄市、河北、山西、內(nèi)蒙古自治區(qū));
5、西北地區(qū)(包括寧夏回族自治區(qū)、新疆維吾爾族自治區(qū)、青海、陜西、甘肅);
6、西南地區(qū)(包括四川、云南、貴州、西藏自治區(qū)、重慶直轄市);
7、東北地區(qū)(包括遼寧、吉林、黑龍江);
8、臺港澳地區(qū)(包括臺灣、香港、澳門)。
公司聯(lián)絡(luò)人:徐工(銷售工程師)
Tel:0592-7796662
Fax:0592-6535181
Phone:18050109369
商務(wù)QQ:3250341298
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福建宇創(chuàng)自動化設(shè)備有限公司 經(jīng)銷批發(fā)的AB、Scheneider、Siemens、FANUC,F(xiàn)OXBORO,安川,GE,艾默生、無暢銷消費者市場,在消費者當(dāng)中享有較高的地位,公司與多家零售商和代理商建立了長期穩(wěn)定的合作關(guān)系。福建宇創(chuàng)自動化設(shè)備有限公司經(jīng)銷的AB、Scheneider、Siemens、FANUC,F(xiàn)OXBORO,安川,GE,艾默生、品種齊全、價格合理。福建宇創(chuàng)自動化設(shè)備有限公司實力雄厚,重信用、守合同、保證產(chǎn)品質(zhì)量,以多品種經(jīng)營特色和薄利多銷的原則,贏得了廣大客戶的信任。
QJ71DN91 Mitsubishi PLC Devicenet Master Card
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DELL NVIDIA QUADRO 600 1GB DDR3 PCI-E 2.0 X16 128-BIT VIDEO CARD PWG0F
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GENERAL ELECTRIC 2 POLE 20 AMP 120/240V TE122020 240V
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Namco Infra-Red Switch EP110-14221 PLC NIB
FOXBORO 871CR-A3T1C1B1 NSFP 871CRA3T1C1B1
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PHOTOSWITCH 871F-A50-C80-T2-B USPP 871FA50C80T2B
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Side Input H5 PCB A-1187-129-B 1-871-245-12 from SONY KDL-40XBR2 LCD TV
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X-2178-605-1 Sony Door HD Vaio VGN-CR150E/B VGN-CR123E/B VGN-CR125E/B X2 GRADE A
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AB 871L B40EP40 T2 ALLEN BRADLEY SENSOR SERIES A
New Foxboro 875CR-A2F-AC Electrochemical 875CRA2FAC New
Foxboro 875PH-A2F-AC Ph/ORP Analyzer
ZüNDSPULE » FORD COUGAR MONDEO 3 EC B5Y
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FORD COUGAR MONDEO 3 EC B5Y » ZüNDSPULE
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USB AC Adapter Charger F-2AC-1A F-2AC-2A F-2AC-1B F-2AC-2B F-2AC-1 for Olympus
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IBM Roal Electronics 595W Redundant AC Power Supply 97P5253 137B EC F74935
NEW PARKER PREP-AIR 3/8" 3 PIECE-- PS756P - 06E17B13AC - 11F17EC
AC Adapter For SONY VAIO PA-1900-11SY VGN VPC VGN Series Power Supply DC Charger
Hydrion A PH Paper ph range 2-4-6-8-10 5 Rolls Inside!
Hydrion A PH Paper ph range 2-4-6-8-10
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Hydrion A PH Paper ph range 2-4-6-8-10 Easy Strips for Quick Tests
GLI P53A2A1N PH Analyzer (ELE2437)
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Dayton 6X597E Mercury Contactor 1Ph 35A @ 600VAC N.O.
TOYOTA YARIS SCP1 NLP1 NCP1 NLP2 NCP2 VERSO » CONTI - KEILRIPPENRIEMEN
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NEW MOTORTRONICS INVERTER DRIVE N SERIES N1-2P5 N12P5 1.2KVA 3.1A 1/3 PH
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