OPC是一个过程控制的工业标准,也是管理这个国际组织的重要措施,随着科学技术的不断发展,逐渐加大了自动化控制系统的研究,很多仪表仪器中,也通过OPC来控制系统的工作过程。本文主要研究组态软件iFIX与PLC的通信,进而探索系统之间的自动化控制水平,在西门子s7-300PLC通信过程中,会涉及到很多数据的传送和输入。因此必须具备高效的通信系统,才能提高系统的工作效率,最大限度的展现出工业控制系统的水
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Orbital injury and complications are commonly encountered in endoscopic sinus surgery (ESS) despite advances in techniques and instrumentation. For the recent 1
梦圆时刻.举国欢腾:中国画卷.震撼世界;赛场内外,精彩纷呈。湖北日报传媒集团党报与都市类媒体功能互补,传统媒体与网络媒体分层覆盖.构筑奥运报道立体格局,使奥运报道特色鲜明、热烈
以TiO2和纳米炭黑为原料, 机械干法混合后, 在Ar气氛下微波碳热合成纳米TiC。合成产物通过XRD和SEM进行表征, 研究了TiO2粒径、反应温度、保温时间对微波碳热合成纳米TiC物相
The coexistence of acquired hemophilia A with a secondary retropharyngeal hematoma is an extremely unusual condition with important clinical implications. The p
Right vocal cord paralysis in our present case was diagnosed on clinical and radiological examination which is precipitated by an anomalous right aortic arch wi
近年来,我国针对医疗体制也提出了一系列改革措施,其中财务管理作为医院运行的基础组成之一扮演着重要角色。本文主要对医院财务管理存在问题及解决对策应用展开深入化分析探
Schwannomas of the head and neck as well as brachial plexus primary tumors are both uncommon entities, and combination of these conditions is quite rare. Schwan
Purpose: Bleomycin is an antibiotic medication that inhibits the synthesis of DNA, RNA, and proteins and is now used in a variety of medical conditions includin