博途S7-1200 MODBUS-TCP通讯教程：实现设备间的无缝连接与交互 其中包含S7-1200作为服务器与客户端的配置方法，以及第三方设备作为服务器与客户端的对接策略，并介绍MODBUS-TCP
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博途S7-1200 MODBUS_TCP通讯教程：实现设备间的无缝连接与交互。其中包含S7-1200作为服务器与客户端的配置方法，以及第三方设备作为服务器与客户端的对接策略，并介绍MODBUS_TCP测试工具的应用。,博途S7-1200与第三方设备通讯教程：MODBUS_TCP协议下的服务器与客户端角色互换及测试工具应用,博途S7－1200采用MODBUS_TCP与第三方设备通讯教程S7－1200作服务器，第三方设备作客户端S7－1200作客户端，第三方设备作服务器MODBUS_TCP测试工具,博途S7-1200; MODBUS_TCP通讯; 服务器与客户端通讯; 测试工具;,博途S7-1200与第三方设备MODBUS_TCP通讯教程：双角色设置与测试工具应用 <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90404009/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90404009/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">博途<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>采用<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>与第三方设备通讯教程</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">一<span class="ff3">、</span>引言</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">博途<span class="_ _0"> </span><span class="ff2">S7-1200<span class="_ _1"> </span></span>是西门子推出的一款功能强大<span class="ff3">、</span>性能稳定的<span class="_ _0"> </span><span class="ff2">PLC<span class="ff4">（</span></span>可编程逻辑控制器<span class="ff4">）<span class="ff3">。</span></span>该<span class="_ _0"> </span><span class="ff2">PLC<span class="_ _1"> </span></span>支持</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">多种通讯协议<span class="ff4">，</span>包括<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>协议<span class="ff3">。</span>通过<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>协议<span class="ff4">，<span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span></span>可以与各种第三</div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">方设备进行通讯<span class="ff3">。</span>本文将详细介绍如何使用<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>协议实现<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>与第三方设备的</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">通讯<span class="ff3">。</span></div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">二<span class="ff3">、<span class="ff2">S7<span class="ff4">－</span>1200<span class="_ _1"> </span></span></span>作服务器<span class="ff4">，</span>第三方设备作客户端</div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span><span class="ff1">配置<span class="_ _0"> </span></span>S7-1200 PLC<span class="_ _1"> </span><span class="ff1">作为服务器</span></div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">在博途软件中<span class="ff4">，</span>我们需要为<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>配置<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>服务器<span class="ff3">。</span>在<span class="_ _0"> </span><span class="ff2">TIA Portal<span class="_ _1"> </span></span>项目中<span class="ff4">，</span>创</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">建新的<span class="_ _0"> </span><span class="ff2">MODBUS TCP<span class="_ _1"> </span></span>连接并配置相关参数<span class="ff4">，</span>如<span class="_ _0"> </span><span class="ff2">IP<span class="_ _1"> </span></span>地址<span class="ff3">、</span>端口号等<span class="ff3">。</span>同时<span class="ff4">，</span>我们需要为该连接创建数</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">据块<span class="ff4">，</span>定义与第三方设备通讯的寄存器或线圈的地址和数据类型<span class="ff3">。</span></div><div class="t m0 x1 h2 yc ff2 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff1">配置第三方设备作为客户端</span></div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls0 ws0">第三方设备需要安装<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>客户端软件<span class="ff4">，</span>并配置相应的<span class="_ _0"> </span><span class="ff2">IP<span class="_ _1"> </span></span>地址和端口号<span class="ff4">，</span>以便与<span class="_ _0"> </span><span class="ff2">S7-1200 </span></div><div class="t m0 x1 h2 ye ff2 fs0 fc0 sc0 ls0 ws0">PLC<span class="_ _1"> </span><span class="ff1">建立连接<span class="ff3">。</span>同时<span class="ff4">，</span>第三方设备的软件需要能够识别<span class="_ _0"> </span></span>S7-1200 PLC<span class="_ _1"> </span><span class="ff1">的数据块地址和数据类型<span class="ff3">。</span></span></div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">3.<span class="_ _2"> </span><span class="ff1">测试通讯</span></div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">使用<span class="_ _0"> </span><span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span>测试工具<span class="ff4">，</span>我们可以测试<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>与第三方设备的通讯是否成功<span class="ff3">。</span>在测试</div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">工具中<span class="ff4">，</span>我们可以发送读<span class="ff2">/</span>写请求<span class="ff4">，</span>检查<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>的寄存器或线圈的状态是否与第三方设备同</div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">步<span class="ff3">。</span></div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">三<span class="ff3">、<span class="ff2">S7<span class="ff4">－</span>1200<span class="_ _1"> </span></span></span>作客户端<span class="ff4">，</span>第三方设备作服务器</div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">当<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>作为客户端时<span class="ff4">，</span>其配置与作为服务器时类似<span class="ff4">，</span>但角色发生了变化<span class="ff3">。</span>我们需要为<span class="_ _0"> </span><span class="ff2">S7-</span></div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">1200 PLC<span class="_ _1"> </span><span class="ff1">配置<span class="_ _0"> </span></span>MODBUS_TCP<span class="_ _1"> </span><span class="ff1">客户端<span class="ff4">，</span>并指定第三方设备的<span class="_ _0"> </span></span>IP<span class="_ _1"> </span><span class="ff1">地址和端口号<span class="ff3">。</span>同时<span class="ff4">，</span>我们需要在</span></div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc0 ls0 ws0">TIA Portal<span class="_ _1"> </span><span class="ff1">项目中定义与第三方设备交互的数据块地址和数据类型<span class="ff3">。</span></span></div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">四<span class="ff3">、<span class="ff2">MODBUS_TCP<span class="_ _1"> </span></span></span>测试工具的使用</div><div class="t m0 x1 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">MODBUS_TCP<span class="_ _1"> </span><span class="ff1">测试工具是一款用于测试<span class="_ _0"> </span></span>MODBUS_TCP<span class="_ _1"> </span><span class="ff1">通讯的软件<span class="ff3">。</span>通过该工具<span class="ff4">，</span>我们可以发送读</span>/<span class="ff1">写</span></div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0">请求到<span class="_ _0"> </span><span class="ff2">S7-1200 PLC<span class="_ _1"> </span></span>或第三方设备<span class="ff4">，</span>并查看响应结果<span class="ff3">。</span>这有助于我们快速定位并解决问题<span class="ff4">，</span>确保</div><div class="t m0 x1 h2 y1a ff2 fs0 fc0 sc0 ls0 ws0">S7-1200 PLC<span class="_ _1"> </span><span class="ff1">与第三方设备的通讯正常<span class="ff3">。</span></span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>