volume contral 中文意思是什麼
volume contral
解釋
音量調節器- volume : n. 1. 卷，冊；書籍；【歷史】書卷，卷軸。2. 〈常 pl. 〉大塊，大量，許多。3. 體積；容積；分量，額；【物、樂】音量；強度，響度。
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The computers which are embedded into some sets are called embedded computer. so ， it ' s most visiable feature is the so small and compact volume. the embedded computer provides kinds of function interfaces for users ， administrates the whole system ' s inputs and outputs ， and contral set ' s calculate ability. so that ， sets with embedded computer have more excellence. profibus - dp fieldbus is a kind of communications standard and technique developed for the industrial field condition. to link the field fixings that require controlling and watching to the field controller whose core is embedded oprating system ， and realize field controlling is its function. for field fixings that may communicate each other ， they can communicate each other independently by means of profibus - dp ， then the work ' s security and efficiency are increased. speaking vividly ， profibus - dp fieldbus system is a small dcs control system. in the whole ， profibus - dp fieldbus puts parts of the dcs control system ' s function ， that will be realized by the field controller ， down to the industrial field
Profibus - dp現場總線是為適應工業現場的條件，開發的一種通信標準和技術。它的作用就是把現場需要監測和控制的設備按此標準連接到使用嵌入式操作系統的現場控制平臺，實現設備的就地控制。對某些有相互通信要求的現場設備，就可以直接通過profibus - dp現場總線實現獨立相互通信，而不必通過使用嵌入式操作系統的現場控制平臺，提高了工作的可靠性和工作效率。
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