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【超值實(shí)惠】 因?yàn)閷I(yè)、所以!
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公司銷售:伺服驅(qū)動(dòng)器,伺服電機(jī),伺服電源,直流調(diào)速器,軟啟動(dòng),PLC,觸摸屏,變頻器... 優(yōu)勢品牌:A-B 、NATIONAL INSTRUMENTS、??怂共_、NI、艾默生、博世力士樂、羅斯蒙特、通用(GE)、霍尼韋爾、瑞恩、Schneider Modicon(施耐德莫迪康)等
產(chǎn)品廣泛應(yīng)用于:鋼鐵、石油、化工、建材、紡織、冶金、造紙、電力、監(jiān)控、機(jī)械等各種不同行業(yè)。
廈門慧星貿(mào)易是一家以工業(yè)自動(dòng)化產(chǎn)品為主的性的貿(mào)易企業(yè)。公司的主要業(yè)務(wù)是自動(dòng)化產(chǎn)品銷售、機(jī)電設(shè)備進(jìn)出口業(yè)務(wù)、數(shù)控制系統(tǒng)集成和技術(shù)服務(wù)等。公司擁有一批有專業(yè)知識(shí)的銷售團(tuán)隊(duì),可以為用戶提供專業(yè)的技術(shù)咨詢、工程安裝、產(chǎn)品供應(yīng)等全方位服務(wù)。在石油化工、工業(yè)企業(yè)、變電發(fā)電站、新能源等行業(yè)取得了良好的業(yè)績,客戶遍布全國。我們秉承“尊重、務(wù)實(shí)、專業(yè)、創(chuàng)新”的企業(yè)文化,堅(jiān)持“伙伴,本地價(jià)值”的企業(yè)理念,不斷開拓創(chuàng)新,以技術(shù)為核心、視質(zhì)量為生命、奉用戶為上帝,竭誠為您提供性價(jià)比高的自控產(chǎn)品、高質(zhì)量的工程設(shè)計(jì)改造及無微不至的售后服務(wù)。
主要經(jīng)銷分散式控制系統(tǒng)(DCS)、可編程控制器(PLC)、工業(yè)機(jī)器人(配件)、數(shù)控系統(tǒng)模塊、伺服控制系統(tǒng)組件以及其它工業(yè)產(chǎn)品和機(jī)電設(shè)備。優(yōu)勢品牌A-B(ROCKWELL)、NATIONAL INSTRUMENTS(NI)、福克斯波羅(FOXBORO)、NI(National Instruments)、艾默生(Emerson)、博世力士樂(BoschRexroth)、羅斯蒙特(Rosemount)、通用(GE)、霍尼韋爾(Honeywell)、瑞恩(Reliance)、西屋(Westinghouse)、Schneider Modicon(施耐德莫迪康)等。同時(shí),我們在很多地方都建立了高效和穩(wěn)定的供應(yīng)網(wǎng)絡(luò),如:德國,法國,加拿大,美國等地區(qū)。我們的產(chǎn)品應(yīng)用于很多領(lǐng)域,包括設(shè)備制造工業(yè),石油化工,動(dòng)力工業(yè),冶金工業(yè),汽車制造業(yè),航空航天工業(yè)……等。
自成立以來,慧星貿(mào)易始終專注品牌效益與服務(wù)質(zhì)量提升,不斷滿足用戶需要;為客戶提供性價(jià)比優(yōu)越的產(chǎn)品和方案以及全面的服務(wù),降低客戶成本,增強(qiáng)企業(yè)的競爭力。
本公司堅(jiān)持以“誠信為本、質(zhì)量、價(jià)格合理”的經(jīng)營理念,堅(jiān)持“客戶”的原則為廣大客戶提供 的服務(wù)。熱誠歡迎各界朋友前來洽談業(yè)務(wù)!
L LD4 AR1+P#2.0→AR1
+ L#16 ACC1+(.._0001_0 000)
T LD4 調(diào)整模入模塊地址指針,指向下一通道Acc1+(bb bbbb bxxx)
L LD8
+ L#16
T LD8 調(diào)整數(shù)據(jù)塊存儲(chǔ)地址指針,指向下一存儲(chǔ)地址
L LW0 將循環(huán)次數(shù)計(jì)數(shù)器LW0的值裝入累加器1
LOOP NEXT 若累加器1的值不為0,將累加器減1繼續(xù)循環(huán);若累加
器為0,則結(jié)束
在FC100中,寄存器間接尋址指令OP NDB[LW0]使用了臨時(shí)本地?cái)?shù)據(jù)LW0,變量表中定義的臨時(shí)變量雖然也在L堆棧中,但不能用于存儲(chǔ)器間接尋址,從這里也可看出臨時(shí)本地?cái)?shù)據(jù)與臨時(shí)變量的區(qū)別。程序中LW2、LD4和LD8起的作用也可用臨時(shí)變量替代。
下面舉例說明如何使用FC100。在某應(yīng)用中,機(jī)架0的4號槽位安裝了一個(gè)8模入模塊(地址256開始),若要將前6個(gè)模入模塊信號讀回,存入DB50.DBW10開始的6個(gè)字單元中,可按下列形式調(diào)用FC100:
CALL FC100
PIW_Add:= 256
CH_LEN:= 6
DB_No:= 50
DBW_Addr:= 10
數(shù)據(jù)塊
數(shù)據(jù)塊定義在S7 CPU存儲(chǔ)器中,用戶可在存儲(chǔ)器中建立一個(gè)或多個(gè)數(shù)據(jù)塊。每個(gè)數(shù)據(jù)塊可大可小,但CPU對數(shù)據(jù)塊數(shù)量及數(shù)據(jù)總量有限制,如對于CPU314,用作數(shù)據(jù)塊的存儲(chǔ)器多為8 KB(8192 B),用戶定義的數(shù)據(jù)總量不能超出這個(gè)限制。對數(shù)據(jù)塊必須遵循先定義后使用的原則,否則,將造成系統(tǒng)錯(cuò)誤。
1. 定義數(shù)據(jù)塊
在編程階段和運(yùn)行程序中都能定義數(shù)據(jù)塊。大多數(shù)數(shù)據(jù)塊是在編程階段用STEP 7開發(fā)軟件包定義的,定義內(nèi)容包括數(shù)據(jù)塊號及塊中的變量(包括變量符號名、數(shù)據(jù)類型以及初始值等),定義完成后,數(shù)據(jù)塊中變量的順序及類型決定了數(shù)據(jù)塊的數(shù)據(jù)結(jié)構(gòu),變量的數(shù)量決定了數(shù)據(jù)塊的大小。數(shù)據(jù)塊在使用前,必須作為用戶程序的一部分下載到CPU中。
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