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基于EXTR指令的PLC与变频器通信程序设计 被引量:2
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作者 余文培 《自动化技术与应用》 2012年第7期86-88,共3页
本文主要阐述了在FX2N系列的PLC中,应用FX2N-ROM-E1功能扩展存储器盒的扩展功能指令EXTR来编制PLC和变频器的串行通信程序。改善了以往应用RS功能指令编程方法的繁杂,使通信程序的编写变得更加简单便捷,增强了程序的可读性,同时也使程... 本文主要阐述了在FX2N系列的PLC中,应用FX2N-ROM-E1功能扩展存储器盒的扩展功能指令EXTR来编制PLC和变频器的串行通信程序。改善了以往应用RS功能指令编程方法的繁杂,使通信程序的编写变得更加简单便捷,增强了程序的可读性,同时也使程序的调试、运行变得更加容易和可靠。 展开更多
关键词 EXTR PLC 变频器 通信 程序设计
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基于EXTR指令的三菱PLC与变频器RS-485通信程序的设计与应用 被引量:3
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作者 付惠琪 《电工技术》 2015年第12期44-45,50,共3页
阐述应用EXTR专用通信指令实现PLC与变频器通信的方法,并结合三菱FX2N型PLC与变频器的实际应用,给出了系统的硬件构成、软件设计等。该方法具有简洁、易懂、易于调试、结构简单、易掌握等特点。
关键词 FX2N型PLC 变频器EXTR指令 RS指令 串行通信
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Extraesophageal saline enhances endoscopic ultrasonography to differentiate esophagus and adjacent organs
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作者 Jian-Jun Li Hong-Bo Shan +8 位作者 Long-Jun He Thomas D Wang Huan Xiong Li-Ming Chen Xiao-Hai Li Xin-Xin Huang Guang-Yu Luo Yin Li Guo-Liang Xu 《World Journal of Gastroenterology》 SCIE CAS 2014年第35期12551-12558,共8页
AIM:To distinguish between the esophagus and adjacent organs using extraesophageal saline injection(ESI) in a canine model.METHODS:ESI was performed through the esophagus under the guidance of linear-array endoscopic ... AIM:To distinguish between the esophagus and adjacent organs using extraesophageal saline injection(ESI) in a canine model.METHODS:ESI was performed through the esophagus under the guidance of linear-array endoscopic ultrasonography(EUS).Approximately 15 mL of methylene blue saline(0.5%) was then injected through each of the extraesophageal puncture points using a 22 G needle.Radial EUS examinations were conducted before and after ESI.EUS images of the trachea,tracheal bifurcation,arcus aortae and thoracic aorta were recorded.Vital signs were monitored during the ESI procedure and EUS examination.The dogs were then sacrificed for exploratory thoracotomy.RESULTS:No obvious fluctuation in vital signs or serious adverse events occurred during the ESI procedure.On EUS imaging,an apparent hypoechoic area outside the esophagus,which separated the esophagus and adjacent organs,was visualized.The adventitious of the esophagus and adjacent organs were easily distinguished.The findings of subsequent exploratory thoracotomy confirmed the EUS findings:obvious accumulation of a blue liquid in the extraesophageal tissues,as well as in the esophageal-thoracic aorta space,esophageal-arcus aortae space and esophageal-tracheal space.CONCLUSION:The esophagus and adjacent organs were successfully separated by ESI,and extraesophageal saline acted as an effective ultrasonic contrast agent. 展开更多
关键词 ESOPHAGEAL cancer Endoscopic ultrasonog-raphy Extr
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《古典文献研究》稿件书写格式
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《古典文献研究》 CSSCI 2008年第1期616-616,共1页
一、来稿请使用繁体字。除特殊论文外,异体字、俗字等请改用繁体正字。欢迎打印稿。二、注释请采用页下注。注释码用阿拉伯数字①②③④……表示,其位置在标点符号前(引号除外)文字的右上角。当页再次征引,用"同注×,第×&... 一、来稿请使用繁体字。除特殊论文外,异体字、俗字等请改用繁体正字。欢迎打印稿。二、注释请采用页下注。注释码用阿拉伯数字①②③④……表示,其位置在标点符号前(引号除外)文字的右上角。当页再次征引,用"同注×,第××页"的形式。 展开更多
关键词 古典文献研究 页下注 著作名 出版年代 卷数 BERKELEY 明期 中文数字 公元纪年 Extre
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Pesticide Makers Enjoy Fat Profits or Suffer Losses
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《China Chemical Reporter》 2008年第28期11-12,共4页
In contrast with the consistent growth results of urea firms,China’s pesticide makers reported wide ranging fmancial results for their product lines for the first half(H1) of this year,ending June 30th.The early bird... In contrast with the consistent growth results of urea firms,China’s pesticide makers reported wide ranging fmancial results for their product lines for the first half(H1) of this year,ending June 30th.The early birds entering the manu-facture of glyphosate shared fats profits brought by the quadrupled price increase in twelve months.At the other extreme firms who were heavily involved in producing the highly toxic pesticides that were recently banned 展开更多
关键词 PESTICIDES producing facture TWELVE Shandong extre
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WACKER Develops Hydrophilic Softener for Textile Finishing
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《China Chemical Reporter》 2007年第29期13-13,共2页
On September 7th,2007 WACKER,the Munich-based chemi-cals group,has developed a new silicone softener emul-sion for the hydrophihc finishing of textiles.The product,aself-dispersing concentrate,imparts not only outstan... On September 7th,2007 WACKER,the Munich-based chemi-cals group,has developed a new silicone softener emul-sion for the hydrophihc finishing of textiles.The product,aself-dispersing concentrate,imparts not only outstandingabsorbency and a very good hand,but also high stabihty 展开更多
关键词 SILICONE FINISHING chemi TEXTILES CONCENTRATE extr
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