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"/images/banner/s5.jpg"; var randomBgIndex = Math.round( Math.random() * 4 ); //输出随机的背景图 document.write('<style>.banner{background:url(' + bodyBgs[randomBgIndex] + ') no-repeat 50% bottom}</style>'); //]]> </script> <section> <div class="banner" style="height:160px;"> </div> </section> <!-- 面包屑导航开始 --> <div class="container "> <nav class="sub_menu"> <ol class="breadcrumb"><span class="glyphicon glyphicon-list"></span> <li><a href="/">网站首页</a></li> <li><a title="技术文章" href="/bethel/NC">技术文章</a></li> <li><a title="数控文章" href="/bethel/news">数控文章</a></li> </ol> </nav> </div> <!--/sub_menu--><!-- 面包屑导航结束 --> <!-- 页面标题开始 --> <div class="title"> <h3><a>主轴正转控制过程分析<small></small></a></h3> </div> <!-- 页面标题结束 --> <hr class="featurette-divider"> <!-- 中部开始 --> <div class="container"> <!-- 正文 --> <div class="lead" id="print"> <p><span style="font-size: x-small;"> </span><a name="bookmark26" style="line-height: 14pt; text-align: justify; text-indent: 0cm; background-color: transparent;"><span style="font-size: x-small;"><span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><span class="51pt">5.3主轴正转控制过程分析</span></span></a></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:25.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">手动模式下</span><span class="2">，</span><span class="2">按下主轴正转按钮后</span><span class="2">，</span><span class="2">软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">运行系统会进行一系列的函数</span><span class="2"> </span><span class="2">调用</span><span class="2">，</span><span class="2">整个数据的运算与存储过程就是实现主轴正转的过程</span><span class="2">：</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:25.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2"><span style="font-family: SimSun;">1)</span></span><span class="2">人机界面进程响应主轴正转按钮函数。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:25.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">这是人机界面进程把数据写入软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">共享内存区的过程。首先</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI </span></span><span class="2">进程调用主轴正转按钮函数给人机界面数据域中变量</span><span class="2TimesNewRoman19"><span lang="EN-US">m</span></span><span class="2"><span style="font-family: SimSun;">_</span></span><span class="2TimesNewRoman19"><span lang="EN-US">M</span></span><span class="2"><span style="font-family: SimSun;">03</span></span><span class="2">赋为</span><span class="2TimesNewRoman19"><span lang="EN-US">true</span></span><span class="2"><span style="font-family: SimSun;">,</span></span><span class="2">该变量 作为软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">的一个输入信号存储在人机界面缓存区中。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-indent:25.0pt; line-height:19.45pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">当软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">进入周期循环扫描时，系统任务管理线程置位通讯事件句柄 </span><span class="2TimesNewRoman19"><span lang="EN-US">h</span></span><span class="2"><span style="font-family: SimSun;">_</span></span><span class="2TimesNewRoman19"><span lang="EN-US">eventcommuni</span></span><span class="21pt"><span style="font-family: SimSun;">,</span></span><span class="21pt">触发软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">与人机界面进程和软</span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">的通讯任务。系统中 设置软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">先与</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">进程进行通讯。</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">进程利用写函数</span><span class="2TimesNewRoman19"><span lang="EN-US">WriteData</span></span><span class="2">〇</span><span class="2">将人机 界面缓存区数据写入软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">的共享内存区</span><span class="2TimesNewRoman19"><span lang="EN-US">HMIToPLCBuffer</span></span><span class="2">单元中， 使地址</span><span class="2TimesNewRoman19"><span lang="EN-US">PI</span></span><span class="2"><span style="font-family: SimSun;">0.5</span></span><span class="2">中数据置1</span><span class="2MingLiU2">。</span><span class="2"><span style="font-family: SimSun;">“</span></span><span class="2TimesNewRoman19"><span lang="EN-US">PI</span></span><span class="2"><span style="font-family: SimSun;">0.5”</span></span><span class="2">是</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">分配给软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">的10地址，在这里对 应五轴铣床主轴正转输入位。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:25.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">与</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">的通讯结束后，软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">系统任务调度线程取得控制权，通过判断 运行状态字得知整个通信任务并未完成，返回继续执行与</span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">的通讯任务。其 中软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">共享内存</span><span class="2TimesNewRoman19"><span lang="EN-US">PLCToCNCBuffer</span></span><span class="2">单元中存储了上一周期</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">发往 </span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">的状态信息。由于是手动模式，所以该共享区中0号通道的第0位软逻辑 状态为“1” ；此外0号通道第5位状态软逻辑状态为“0”，5号通道第2位 的软逻辑状态为“0”，5号通道第3位的软逻辑状态为“0”。</span><br clear="all" style="mso-special-character: line-break;page-break-before:always" /> </span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.45pt;mso-line-height-rule: exactly;tab-stops:44.05pt;background:transparent"><span style="font-size: x-small;"><!--[if !supportLists]--><span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">执行</span><span class="2TimesNewRoman19"><span lang="EN-US">I</span></span><span class="2"><span style="font-family: SimSun;">/</span></span><span class="2TimesNewRoman19"><span lang="EN-US">O</span></span><span class="2">读任务线程</span></span></p> <p class="130" align="right" style="margin-top:0cm;text-align:right;line-height: 19.45pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="13SimSun3">执行完通讯任务，软</span><span class="13"><span lang="EN-US">PLC</span></span><span class="13SimSun3">运行系统进入</span><span class="13"><span lang="EN-US">I/O</span></span><span class="13SimSun3">读任务线程，将</span><span class="13"><span lang="EN-US">SoftSERCANS </span></span><span class="13SimSun3">卡双口存储区中数据读入软</span><span class="13"><span lang="EN-US">PLC</span></span><span class="13SimSun3">与</span><span class="13"><span lang="EN-US">Sercos</span></span><span class="13SimSun3">的共享内存区</span><span class="13"><span lang="EN-US">SercosToPLCBuffer</span></span><span class="13SimSun3">单</span></span><span lang="EN-US"><o:p></o:p></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"><span style="font-size: x-small;"><span class="2">元，其中该共享单元0号通道第1位软逻辑状态为“0”，对应本次扫描输入映 像区主轴的当前状态，该共享单元0号通道第2位软逻辑状态为“0”。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.45pt;mso-line-height-rule: exactly;tab-stops:44.05pt;background:transparent"><span style="font-size: x-small;"><!--[if !supportLists]--><span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">执行</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">用户程序</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-indent:26.0pt; line-height:19.45pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">完成</span><span class="2TimesNewRoman15"><span lang="EN-US">I/O</span></span><span class="2">读任务线程，软</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">系统任务调度线程唤醒程序执行任务线程。 程序执行任务线程一个是不断取指令、调用指令函数的过程，它从指令链表节点 数据域中读取到指令索引值，然后判断指令类型调用指令函数进行运算。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">当执行到图</span><span class="2TimesNewRoman15"><span lang="EN-US">5.1</span></span><span class="2">主轴正转这一梯级时，软</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">系统首先对</span><span class="2TimesNewRoman15"><span lang="EN-US">CQ0.0</span></span><span class="2">这一位的 软逻辑进行状态判断和操作，从指令存储区的链表节点数据域中读到指令索引值 </span><span class="2TimesNewRoman15">“ 1001</span><span class="2105pt1">”，</span><span class="2">调用读输入位指令函数</span><span class="2TimesNewRoman15"><span lang="EN-US">ReadInBit</span></span><span class="2105pt1">〇</span><span class="2TimesNewRoman15"><span lang="EN-US">,</span></span><span class="2">利用位寻址函数</span><span class="2TimesNewRoman15"><span lang="EN-US">ReadBit</span></span><span class="2105pt1">〇</span><span class="2">从</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC </span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">CNC</span></span><span class="2">的共享内存区</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToCNCBuffer</span></span><span class="2">单元中读</span><span class="2TimesNewRoman15">0</span><span class="2">号通道</span><span class="2TimesNewRoman15">0</span><span class="2">号位的状态，通过 函数</span><span class="2TimesNewRoman15"><span lang="EN-US">CurrentBitStatusG</span></span><span class="2">与系统中标志位进行比较确认它的状态，然后压入堆栈， 当前栈顶元素值为</span><span class="2TimesNewRoman15">“1</span><span class="2105pt1">”；</span><span class="2">接着对软逻辑</span><span class="2TimesNewRoman15"><span lang="EN-US">PI0.5</span></span><span class="2">进行状态判断，执行完一条指令后 指令链表的指针移指向下一个节点，根据索引值</span><span class="2TimesNewRoman15">“1003”</span><span class="2">调用读输入位相与指 令函数</span><span class="2TimesNewRoman15"><span lang="EN-US">ReadInANDBit</span></span><span class="2105pt1">〇</span><span class="2TimesNewRoman15"><span lang="EN-US">,</span></span><span class="2">从软</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">HMI</span></span><span class="2">的共享内存区</span><span class="2TimesNewRoman15"><span lang="EN-US">HMIToPLCBuffer</span></span><span class="2">单元 中读取</span><span class="2TimesNewRoman15">0</span><span class="2">号通道第</span><span class="2TimesNewRoman15">5</span><span class="2">位状态值</span><span class="2TimesNewRoman15">“1</span><span class="2105pt1">”，</span><span class="2">接着利用堆栈操作函数</span><span class="2TimesNewRoman15"><span lang="EN-US">AndStack()</span></span><span class="2">与当前栈 顶元素进行逻辑与运算将结果</span><span class="2TimesNewRoman15">“1”</span><span class="2">压入栈顶；然后判断由软逻辑</span><span class="2TimesNewRoman15"><span lang="EN-US">CQ0.7</span></span><span class="2105pt1">、</span><span class="2TimesNewRoman15"><span lang="EN-US">RI1.0 </span></span><span class="2">和</span><span class="2TimesNewRoman15"><span lang="EN-US">LQ0.1</span></span><span class="2">组成的并联电路块的状态并与栈顶元素</span><span class="2TimesNewRoman15">“1”</span><span class="2">进行逻辑或运算，将结果 压入栈顶。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">接着从</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">Sercos</span></span><span class="2">共享内存</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToSercosBuffer</span></span><span class="2">读取</span><span class="2TimesNewRoman15">0</span><span class="2">号通道第</span><span class="2TimesNewRoman15">2</span><span class="2">位的 状态“0”取反后与栈顶元素“1”进行逻辑与运算，将结果“1”压入逻辑堆栈， 然后从软</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">内部输入映像区中读取</span><span class="2TimesNewRoman15">0</span><span class="2">号字节的第</span><span class="2TimesNewRoman15">3</span><span class="2">位状态</span><span class="2TimesNewRoman15">“0</span><span class="2105pt1">”，</span><span class="2">取反后与栈 顶元素进行逻辑与运算，将结果压入栈顶</span><span class="2"><span style="font-family: SimSun;">(</span></span><span class="2">状态为</span><span class="2TimesNewRoman15">“1</span><span class="2105pt1">”)，</span><span class="2">然后执行输出指令</span><span class="2TimesNewRoman15"><span lang="EN-US">OutBit LQ0.1</span></span><span class="2105pt1">，</span><span class="2">利用写输入位指令函数</span><span class="2TimesNewRoman15"><span lang="EN-US">WriteOutBitG</span></span><span class="2">将当前逻辑栈顶元素</span><span class="2TimesNewRoman15">“1”</span><span class="2">改写</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC </span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">Sercos</span></span><span class="2">共享内存</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToSercosBuffer</span></span><span class="2">单兀中</span><span class="2TimesNewRoman15">0</span><span class="2">号通道第</span><span class="2TimesNewRoman15">1</span><span class="2">位的状态，接着执行 指令</span><span class="2TimesNewRoman15"><span lang="EN-US">OutBit CQ5.2,</span></span><span class="2">改写</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">CNC</span></span><span class="2">共享内存区</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToCNCBuffer</span></span><span class="2">单元中</span><span class="2TimesNewRoman15">5</span><span class="2">号 通道第2位的状态，然后继续扫描下一梯级。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">在图</span><span class="2TimesNewRoman15"><span lang="EN-US">5.1</span></span><span class="2">中的第二梯级中，软</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">从共享内存</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToCNCBuffer</span></span><span class="2">单元中读取 到</span><span class="2TimesNewRoman15">5</span><span class="2">号通道第</span><span class="2TimesNewRoman15">2</span><span class="2">位状态“ </span><span class="2TimesNewRoman15">1 </span><span class="2">”压入堆栈，接着读取</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToCNCBuffer</span></span><span class="2">单元</span><span class="2TimesNewRoman15">5</span><span class="2">号通 道中第</span><span class="2TimesNewRoman15">3</span><span class="2">位的状态</span><span class="2TimesNewRoman15">“0”</span><span class="2">取反后和栈顶元素</span><span class="2TimesNewRoman15">“1”</span><span class="2">进行逻辑与运算，将结果</span><span class="2TimesNewRoman15">“1” </span><span class="2">压入栈顶，执行输出指令</span><span class="2TimesNewRoman15"><span lang="EN-US">0utBitPQ3.3,</span></span><span class="2">用逻辑栈顶元素值</span><span class="2TimesNewRoman15">“1”</span><span class="2">改写</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">HMI </span></span><span class="2">界面共享内存区</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToHMIBuffer</span></span><span class="2">单元中</span><span class="2TimesNewRoman15">3</span><span class="2">号通道第</span><span class="2TimesNewRoman15">3</span><span class="2">位的状态;然后执行</span><span class="2TimesNewRoman15"><span lang="EN-US">OutBit LQ 4.</span></span><span class="2TimesNewRoman15">1</span><span class="2">,用逻辑栈顶元素值“ </span><span class="2TimesNewRoman15">1 </span><span class="2">”改写</span><span class="2TimesNewRoman15"><span lang="EN-US">PLC</span></span><span class="2">与</span><span class="2TimesNewRoman15"><span lang="EN-US">Sercos</span></span><span class="2">共享内存区</span><span class="2TimesNewRoman15"><span lang="EN-US">PLCToSercosBuffer </span></span><span class="2">单元中</span><span class="2TimesNewRoman15">4</span><span class="2">号通道第</span><span class="2TimesNewRoman15">1</span><span class="2">位的状态，继续扫描其他梯级。</span><br clear="all" style="mso-special-character:line-break;page-break-before:always" /> </span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:30.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="21pt"><span style="font-family: SimSun;">4)</span></span><span class="21pt">执行</span><span class="2TimesNewRoman19"><span lang="EN-US">I/O</span></span><span class="2">写任务线程</span></span></p> <p class="390" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-indent:24.0pt;line-height:19.45pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="39SimSun"><span style="font-family: 宋体;">程序执行任务线程结束，软</span></span><span class="39"><span lang="EN-US">PLC</span></span><span class="39SimSun"><span style="font-family: 宋体;">系统任务管理线程调度执行</span></span><span class="39"><span lang="EN-US">I/O</span></span><span class="39SimSun"><span style="font-family: 宋体;">写任务线 程，将</span></span><span class="39"><span lang="EN-US">PLC</span></span><span class="39SimSun"><span style="font-family: 宋体;">与</span></span><span class="39"><span lang="EN-US">Sercos</span></span><span class="39SimSun"><span style="font-family: 宋体;">共享内存区</span></span><span class="39"><span lang="EN-US">PLCToSercosBuffer</span></span><span class="39SimSun"><span style="font-family: 宋体;">中数据写入</span></span><span class="39"><span lang="EN-US">SoftSERCANS</span></span></span><span lang="EN-US"><o:p></o:p></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.45pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">被动式主站卡的双口 </span><span class="2TimesNewRoman19"><span lang="EN-US">RAM</span></span><span class="2">存储区的对应地址。</span></span></p> <p class="20" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:30.0pt;line-height:19.45pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: x-small;"><span class="2">完成</span><span class="2TimesNewRoman19"><span lang="EN-US">I/O</span></span><span class="2">写任务线程，软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">系统任务管理线程判断运行状态字决定是否 进行下一周期的循环扫描，是则继续重复上述的四个阶段，否则判断是否退出软 </span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">应用程序。</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-indent:24.0pt;line-height:19.45pt; mso-line-height-rule:exactly;background:transparent"> </p> <p><span style="font-size: x-small;"> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-indent:24.0pt;line-height:19.45pt; mso-line-height-rule:exactly;background:transparent"><!--[if !supportLists]--><span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">控制信号结果输出</span><!--[if gte vml 1]><o:wrapblock><v:shapetype id="_x0000_t202" coordsize="21600,21600" o:spt="202" path="m,l,21600r21600,l21600,xe"> <v:stroke joinstyle="miter" /> <v:path gradientshapeok="t" o:connecttype="rect" /> </v:shapetype><v:shape id="_x0000_s1026" type="#_x0000_t202" style='position:absolute; left:0;text-align:left;margin-left:36.6pt;margin-top:54.95pt;width:24.25pt; height:4.5pt;text-indent:0;z-index:-3;mso-wrap-distance-left:24.5pt; mso-wrap-distance-right:23.75pt;mso-position-horizontal-relative:margin' filled="f" stroked="f"> <v:textbox style='mso-fit-shape-to-text:t' inset="0,0,0,0"> <![if !mso]> <table cellpadding=0 cellspacing=0 width="100%"> <tr> <td><![endif]> <div> <p class=28 style='line-height:4.5pt;mso-line-height-rule:exactly; background:black'><span class=28Exact1><span lang=EN-US style='mso-bidi-font-family: "Times New Roman"'>oftPLC -</span></span></p> </div> <![if !mso]></td> </tr> </table> <![endif]></v:textbox> <w:wrap type="topAndBottom" anchorx="margin" /> </v:shape><v:shape id="_x0000_s1027" type="#_x0000_t202" style='position:absolute; left:0;text-align:left;margin-left:122.3pt;margin-top:54.95pt;width:46.8pt; height:4.5pt;text-indent:0;z-index:-2;mso-wrap-distance-left:24.5pt; mso-wrap-distance-right:23.75pt;mso-position-horizontal-relative:margin' filled="f" stroked="f"> <v:textbox style='mso-fit-shape-to-text:t' inset="0,0,0,0"> <![if !mso]> <table cellpadding=0 cellspacing=0 width="100%"> <tr> <td><![endif]> <div> <p class=28 style='line-height:4.5pt;mso-line-height-rule:exactly; background:black'><span lang=EN-US><o:p> </o:p></span></p> </div> <![if !mso]></td> </tr> </table> <![endif]></v:textbox> <w:wrap type="topAndBottom" anchorx="margin" /> </v:shape><v:shape id="_x0000_s1028" type="#_x0000_t202" style='position:absolute; left:0;text-align:left;margin-left:136.7pt;margin-top:311.5pt;width:145.7pt; height:22.5pt;text-indent:0;z-index:-1;mso-wrap-distance-left:24.5pt; mso-wrap-distance-right:23.75pt;mso-position-horizontal-relative:margin' filled="f" stroked="f"> <v:textbox style='mso-fit-shape-to-text:t' inset="0,0,0,0"> <![if !mso]> <table cellpadding=0 cellspacing=0 width="100%"> <tr> <td><![endif]> <div> <p class=22 align=center style='text-align:center;text-indent:0cm; line-height:22.8pt;mso-line-height-rule:exactly;background:transparent'><span lang=EN-US><o:p> </o:p></span></p> </div> <![if !mso]></td> </tr> </table> <![endif]></v:textbox> <w:wrap type="topAndBottom" anchorx="margin" /> </v:shape><![endif]--><!--[if !vml]--> <span class="2">一方面，</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">在下一个扫描周期的通讯阶段从共享内存区读取到对应主轴 正传位的状态，使人机界面</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">上主轴正转灯亮</span><span class="2105pt1">。</span></p> </span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">其中</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">界面图中软逻辑位对应关系如下：</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">X</span></span><span class="2"><span style="font-family: SimSun;">000——</span></span><span class="2TimesNewRoman19"><span lang="EN-US">CQO</span></span><span class="2"><span style="font-family: SimSun;">.</span></span><span class="2TimesNewRoman19"><span lang="EN-US">O</span></span><span class="2"><span style="font-family: SimSun;">: </span></span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">给</span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">分配的10地址中的手动模式位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">X</span></span><span class="2"><span style="font-family: SimSun;">001</span></span><span class="2TimesNewRoman19"><span lang="EN-US">——PI</span></span><span class="2"><span style="font-family: SimSun;"> 0.5:</span></span><span class="2">人机界面</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">给</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">分配的10地址中的主轴正转位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">Y</span></span><span class="2"><span style="font-family: SimSun;">000——</span></span><span class="2TimesNewRoman19"><span lang="EN-US">LQ</span></span><span class="2"><span style="font-family: SimSun;">0.</span></span><span class="2">1: </span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">给</span><span class="2TimesNewRoman19"><span lang="EN-US">SERCOS</span></span><span class="2">分配的主轴上电位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">Y</span></span><span class="2"><span style="font-family: SimSun;">001——</span></span><span class="2TimesNewRoman19"><span lang="EN-US">CQ</span></span><span class="2-1pt"><span lang="EN-US">5.2:</span></span><span class="2"><span lang="EN-US" style="font-family: SimSun;"> </span></span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">给</span><span class="2TimesNewRoman19"><span lang="EN-US">CNC</span></span><span class="2">分配的主轴正转位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">Y</span></span><span class="2"><span style="font-family: SimSun;">002——</span></span><span class="2TimesNewRoman19"><span lang="EN-US">PQ</span></span><span class="2-1pt"><span lang="EN-US">0.3:</span></span><span class="2"><span lang="EN-US" style="font-family: SimSun;"> </span></span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">给人机界面</span><span class="2TimesNewRoman19"><span lang="EN-US">HMI</span></span><span class="2">分配的主轴正转灯位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2TimesNewRoman19"><span lang="EN-US">Y</span></span><span class="2"><span style="font-family: SimSun;">003——</span></span><span class="2TimesNewRoman19"><span lang="EN-US">LQ</span></span><span class="2-1pt"><span lang="EN-US">4.1:</span></span><span class="2"><span lang="EN-US" style="font-family: SimSun;"> </span></span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">给</span><span class="2TimesNewRoman19"><span lang="EN-US">SERCOS</span></span><span class="2">分配的主轴正转灯位</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:32.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:19.2pt; mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">另一方面，</span><span class="2TimesNewRoman19"><span lang="EN-US">SoftSERCANS</span></span><span class="2">卡在周期通讯的</span><span class="2TimesNewRoman19"><span lang="EN-US">CP</span></span><span class="2"><span style="font-family: SimSun;">4</span></span><span class="2">阶段将双口 </span><span class="2TimesNewRoman19"><span lang="EN-US">RAM</span></span><span class="2">数据打包</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:7.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"><span style="font-size: x-small;"><span class="2">发往各个从站，</span><span class="2TimesNewRoman19"><span lang="EN-US">PLCI</span></span><span class="2"><span style="font-family: SimSun;">/0</span></span><span class="2">从站总线控制器</span><span class="2TimesNewRoman19"><span lang="EN-US">DM</span></span><span class="2"><span style="font-family: SimSun;">9000</span></span><span class="2">接收并解析报文，处理后由五 </span><span class="21pt">轴数控加工中心的2块32位</span><span class="2TimesNewRoman19"><span lang="EN-US">I/O</span></span><span class="2">数字量输出模块输出。</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:7.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:24.0pt;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"><span style="font-size: x-small;"><span class="2">其中第1块数字量输出模块</span><span class="2TimesNewRoman19"><span lang="EN-US">WordO</span></span><span class="2">外部接线端子</span><span class="2"><span style="font-family: SimSun;">2.1</span></span><span class="2">输出高电平信号，继 电器</span><span class="2TimesNewRoman19"><span lang="EN-US">KA</span></span><span class="2"><span style="font-family: SimSun;">2</span></span><span class="2">接通，主轴电源控制电路上</span><span class="2TimesNewRoman19"><span lang="EN-US">KA</span></span><span class="2"><span style="font-family: SimSun;">2</span></span><span class="2">的常开触点闭合，使主轴驱动器电 源主电路上的接触器</span><span class="2TimesNewRoman19"><span lang="EN-US">KM2</span></span><span class="2">主触头闭合，向主轴驱动器发出使能信号，控制五 轴数控加工中心主轴正转，接线端子分配如图</span><span class="2"><span style="font-family: SimSun;">5.4</span></span><span class="2">所示；第2块数字量输出模块外 部接线端子</span><span class="2"><span style="font-family: SimSun;">2.1</span></span><span class="2">输出高电平信号，接通五轴数控加工中心操作面板上的主轴正转指 示灯。</span></span><span class="275pt"><span style="font-size:7.5pt;mso-hansi-font-family:"Times New Roman""><o:p></o:p></span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:13.35pt; margin-left:8.0pt;text-align:justify;text-justify:inter-ideograph;text-indent: 24.0pt;line-height:19.45pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: x-small;"><span class="2">主轴反转、主轴停止控制过程与按下主轴正转按钮的控制过程类似，这里 就不再一一解释它们的执行过程。</span></span></p> <p class="640" style="margin-top:0cm;margin-right:0cm;margin-bottom:9.75pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 0cm;line-height:14.0pt;mso-line-height-rule:exactly;mso-pagination:lines-together; page-break-after:avoid;tab-stops:17.7pt;background:transparent"><a name="bookmark27"></a><span style="font-size: x-small;"><a name="bookmark27"><!--[if !supportLists]--><span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="64TimesNewRoman">5.4</span></a><span class="640pt1">本章小结</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:24.0pt;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"><span style="font-size: x-small;"><span class="2">本章分析了五轴数控加工中心软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">所要控制的具体内容，根据五轴数控加工中心 的控制逻辑编制了主轴正、反转的控制程序，通过下载到软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">运行系统中运 行，实现了对五轴数控加工中心的主轴正、反转控制，验证了软</span><span class="2TimesNewRoman19"><span lang="EN-US">PLC</span></span><span class="2">运行系统的有 效性。</span></span></p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:24.0pt;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"> </p> <p class="20" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm; margin-left:8.0pt;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:24.0pt;line-height:19.45pt;mso-line-height-rule:exactly;background: transparent"><span style="font-size:9.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">本文采摘自“五轴数控加工中心软</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Times New Roman";mso-fareast-font-family: 宋体;mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN; mso-bidi-language:AR-SA">PLC</span><span style="font-size:9.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language: EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">控制系统的研究”，因为编辑困难导致有些函数、表格、图片、内容无法显示，有需要者可以在网络中查找相关文章！本文由伯特利数控整理发表文章均来自网络仅供学习参考，转载请注明！</span></p></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a href='/index.php?case=tag&act=show&t=wap&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E6%95%B0%E6%8E%A7%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>数控加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=CNC%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>CNC加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E6%95%B0%E6%8E%A7%E6%9C%BA%E5%BA%8A' target='_blank'>数控机床</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E4%BA%94%E8%BD%B4%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>五轴加工中心</a> 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