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                        <h1>现场总线</h1>
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                                    <li>浏览次数：10076次</li>
                                    <li>发布时间：2013/8/15 10:18:48 </li>
                                    <li> 作者：量值溯源</li>
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                    <h2><span style="font-family:Microsoft YaHei;font-size:16px;">一、简介</span></h2>
<p><span style="font-size:small;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">　　现场总线是指安装在制造或过程区域的现场装置与控制室内的自动装置之间的数字式、串行、多点通信的数据总线。它是一种工业数据总线，是</span><span lang="EN-US"><a href="http://baike.baidu.com/view/16286.htm" target="_blank"><span style="font-family:'微软雅黑','sans-serif';color:windowtext;text-decoration:none;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">自动化</span></span></a></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">领域中的底层数据</span><span lang="EN-US"><a href="http://baike.baidu.com/view/71985.htm" target="_blank"><span style="font-family:'微软雅黑','sans-serif';color:windowtext;text-decoration:none;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">通信网络</span></span></a></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">。</span></span></p>
<p><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　简单说，现场总线就是以数字通信替代了传统</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-fareast-font-family:微软雅黑;" lang="EN-US">4-20mA<span style="mso-font-kerning:1.0pt;"><a href="http://baike.baidu.com/view/38288.htm" target="_blank"><span style="font-family:'微软雅黑','sans-serif';color:windowtext;text-decoration:none;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">模拟信号</span></span></a></span></span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">及普通开关量信号的传输，是连接智能现场设备和自动化系统的全数字、双向、多站的通信系统。主要解决工业现场的智能化仪器仪表、控制器、执行机构等现场设备间的数字通信以及这些现场控制设备和高级</span><span style="line-height:150%;font-family:'Arial','sans-serif';font-size:12pt;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US"><a href="http://baike.baidu.com/view/57978.htm" target="_blank"><span style="font-family:'微软雅黑','sans-serif';color:windowtext;text-decoration:none;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">控制系统</span></span></a></span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">之间的信息传递问题。</span></p>
<h2><span style="font-family:Microsoft YaHei;font-size:16px;">二、特点</span></h2>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="mso-font-kerning:0pt;" lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　(1) </span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">全数字化通信</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="mso-font-kerning:0pt;" lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　(2) </span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">开放型的互联网络</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="mso-font-kerning:0pt;" lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　(3) </span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">互可操作性与互用性</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="mso-font-kerning:0pt;" lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　(4) </span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">现场设备的智能化</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="mso-font-kerning:0pt;" lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　(5) </span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:0pt;">系统结构的高度分散性</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-fareast-font-family:微软雅黑;" lang="EN-US">　　(6) </span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">对现场环境的适应性</span></span></p>
<h2><span style="font-family:Microsoft YaHei;font-size:16px;">三、典型技术</span></h2>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　2003</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">年</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">4</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">月，</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">IEC61158 Ed.3</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线标准第</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">3</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">版正式成为国际标准，规定</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">10</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">种类型的现场总线。</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 1 TS61158</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 2 ControlNet</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">和</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">Ethernet/IP</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 3 Profibus</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 4 P-NET</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 5 FF HSE</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 6 SwiftNet</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 7 World FIP</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 8 Interbus</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 9 FF H1</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">　　Type 10 PROFInet</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">现场总线</span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　国内工业总线</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">EPA</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">，</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">G-link,Symotion</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">与</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">NCUC-BUS</span></span></span></span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　其它应用总线还有<a href="__ke_temp_url__"></a><u><a target="_blank"><span style="font-family:SimSun;color:#337fe5;font-size:12px;">湖南银河电气有限公司</span></a></u></span>的专业针对高速数据采集的，基于串行光纤传输的</span><span lang="EN-US"><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;">AnyBUS现场</span></span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">总线；</span></p>
<p><span style="font-family:Microsoft YaHei;font-size:16px;"><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US">　　Symotion</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">是一种用于</span><span style="line-height:150%;font-family:'Arial','sans-serif';font-size:12pt;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US"><a href="http://baike.baidu.com/view/1501678.htm" target="_blank"><span style="line-height:150%;font-family:'微软雅黑','sans-serif';color:windowtext;font-size:10.5pt;text-decoration:none;mso-bidi-font-family:Arial;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">运动控制</span></span></a></span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">的实时工业总线，基于</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US">10/100M<a href="http://baike.baidu.com/view/848.htm" target="_blank"><span style="line-height:150%;font-family:'微软雅黑','sans-serif';color:windowtext;font-size:10.5pt;text-decoration:none;mso-bidi-font-family:Arial;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">以太网</span></span></a><a href="http://baike.baidu.com/view/239585.htm" target="_blank"><span style="line-height:150%;font-family:'微软雅黑','sans-serif';color:windowtext;font-size:10.5pt;text-decoration:none;mso-bidi-font-family:Arial;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">物理层</span></span></a></span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">，</span><span style="line-height:150%;font-family:'Arial','sans-serif';font-size:12pt;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US"><a href="http://baike.baidu.com/view/239619.htm" target="_blank"><span style="line-height:150%;font-family:'微软雅黑','sans-serif';color:windowtext;font-size:10.5pt;text-decoration:none;mso-bidi-font-family:Arial;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">应用层</span></span></a></span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">使用</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US">canopen</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">及精简协议。可应用于运动控制器，电机驱动器，</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US">PLC</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">，编码器光栅尺与其它工业现场执行器互连。</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-font-kerning:1.0pt;mso-fareast-font-family:微软雅黑;" lang="EN-US">symotion</span><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;"><span style="font-family:SimSun;font-size:12px;">总线提供安全、开放、低成本及高性能应用</span>。</span></span></p>
<h2><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><strong>四、总线优点</strong></span></span></span></h2>
<p style="text-indent:0cm;margin:0cm 0cm 0pt;"><strong><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　1、现场总线使自控设备与系统步入了信息网络的行列，为其应用开拓了更为广阔的领域；</span></span></span></span></strong></p>
<p style="text-indent:0cm;margin:0cm 0cm 0pt;"><strong><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　2、一对双绞线上可挂接多个控制设备，</span><span style="font-family:Arial;"><span style="font-family:SimSun;font-size:12px;"> </span></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">便于节省安装费用；</span></span></span></span></strong></p>
<p style="text-indent:0cm;margin:0cm 0cm 0pt;"><strong><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　3、节省维护开销；</span></span></span></span></strong></p>
<p style="text-indent:0cm;margin:0cm 0cm 0pt;"><strong><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">　　4、提高了</span><span lang="EN-US"><a href="http://baike.baidu.com/view/3834076.htm" target="_blank"><span style="line-height:150%;font-family:'微软雅黑','sans-serif';color:windowtext;font-size:10.5pt;text-decoration:none;mso-bidi-font-family:Arial;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;text-underline:none;" lang="EN-US"><span style="font-family:SimSun;font-size:12px;" lang="EN-US">系统的可靠性</span></span></a></span><span style="font-family:SimSun;font-size:12px;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;">；</span></span></span></span></strong></p>
<p style="text-indent:0cm;margin:0cm 0cm 0pt;"><strong><span style="line-height:150%;mso-bidi-font-family:Arial;mso-bidi-font-size:12.0pt;mso-fareast-font-family:Arial;" lang="EN-US"><span style="mso-list:Ignore;"><span style="font:16px Microsoft YaHei;"><span style="line-height:150%;font-family:SimSun;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">　　5、为用户提供了更为灵活的系统集成主动权。</span></span></span></span></strong></p>
<h2><span style="line-height:150%;font-family:Microsoft YaHei;background:white;font-size:16px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">五、行业应用</span></h2>
<p><span style="line-height:150%;font-family:SimSun;background:white;font-size:12px;mso-bidi-font-family:'Times New Roman';mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-font-kerning:1.0pt;">　　现场总线的产生对工业的发展起着非常重要的作用，对国民经济的增长有着非常重要的影响。现场总线主要应用于石油、化工、电力、医药、冶金、加工制造、交通运输、国防、航天、农业和楼宇等领域。</span></p>
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