三菱FX3U与台达MS300变频器modbus通讯案例配件要求：三菱FX3U PLC+FX3U 485BD板，台达MS300变 568KB

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三菱FX3U与台达MS300变频器modbus通讯案例配件要求：三菱FX3U PLC+FX3U 485BD板，台达MS300变频器，昆仑通态触摸屏功能：采用485方式，modbus RTU协议，对台达变频器频率设定，正反转，频率，电压读取说明：是程序非实物，程序带有注释，昆仑通态触摸屏程序（附送威纶通触摸屏程序）。

<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/89765815/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/89765815/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">标题<span class="ff2">：</span>三菱<span class="_ _0"> </span><span class="ff3">FX3U<span class="_ _1"> </span></span>与台达<span class="_ _0"> </span><span class="ff3">MS300<span class="_ _1"> </span></span>变频器<span class="_ _0"> </span><span class="ff3">Modbus<span class="_ _1"> </span></span>通讯案例</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">摘要<span class="ff2">：</span>本文介绍了三菱<span class="_ _0"> </span><span class="ff3">FX3U<span class="_ _1"> </span></span>与台达<span class="_ _0"> </span><span class="ff3">MS300<span class="_ _1"> </span></span>变频器之间的<span class="_ _0"> </span><span class="ff3">Modbus<span class="_ _1"> </span></span>通讯案例<span class="ff4">。</span>该案例采用<span class="_ _0"> </span><span class="ff3">485<span class="_ _1"> </span></span>方式</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">和<span class="_ _0"> </span><span class="ff3">Modbus RTU<span class="_ _1"> </span></span>协议<span class="ff2">，</span>实现了对台达变频器的频率设定<span class="ff4">、</span>正反转以及频率<span class="ff4">、</span>电压读取功能<span class="ff4">。</span>文章详细</div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">讲解了程序的相关注释以及昆仑通态触摸屏程序<span class="ff2">，</span>并提供了附送的威纶通触摸屏程序<span class="ff4">。</span></div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">引言</div><div class="t m0 x1 h2 y6 ff3 fs0 fc0 sc0 ls0 ws0">Modbus<span class="_ _1"> </span><span class="ff1">通讯协议是一种主从式通讯协议<span class="ff2">，</span>在工业自动化领域得到了广泛应用<span class="ff4">。</span>本文将介绍一个基于</span></div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">三菱<span class="_ _0"> </span><span class="ff3">FX3U PLC<span class="_ _1"> </span></span>与台达<span class="_ _0"> </span><span class="ff3">MS300<span class="_ _1"> </span></span>变频器的<span class="_ _0"> </span><span class="ff3">Modbus<span class="_ _1"> </span></span>通讯案例<span class="ff2">，</span>通过该案例<span class="ff2">，</span>可以实现对变频器的频率</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">设定<span class="ff4">、</span>正反转以及频率<span class="ff4">、</span>电压的读取<span class="ff4">。</span></div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">系统硬件配置</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">本案例的系统硬件配置如下<span class="ff2">：</span></div><div class="t m0 x1 h2 yb ff3 fs0 fc0 sc0 ls0 ws0">-<span class="_ _2"> </span><span class="ff1">三菱<span class="_ _0"> </span></span>FX3U PLC</div><div class="t m0 x1 h2 yc ff3 fs0 fc0 sc0 ls0 ws0">-<span class="_ _2"> </span>FX3U 485BD<span class="_ _1"> </span><span class="ff1">板</span></div><div class="t m0 x1 h2 yd ff3 fs0 fc0 sc0 ls0 ws0">-<span class="_ _2"> </span><span class="ff1">台达<span class="_ _0"> </span></span>MS300<span class="_ _1"> </span><span class="ff1">变频器</span></div><div class="t m0 x1 h2 ye ff3 fs0 fc0 sc0 ls0 ws0">-<span class="_ _2"> </span><span class="ff1">昆仑通态触摸屏</span></div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">系统功能描述</div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">本案例的系统功能主要包括以下几个方面<span class="ff2">：</span></div><div class="t m0 x1 h2 y11 ff3 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span><span class="ff1">采用<span class="_ _0"> </span></span>485<span class="_ _1"> </span><span class="ff1">方式与<span class="_ _0"> </span></span>Modbus RTU<span class="_ _1"> </span><span class="ff1">协议进行通讯<span class="ff2">：</span>通过<span class="_ _0"> </span></span>485<span class="_ _1"> </span><span class="ff1">通讯方式<span class="ff2">，</span>实现<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">与变频器之间的</span></div><div class="t m0 x2 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">数据传输与通讯<span class="ff4">。</span></div><div class="t m0 x1 h2 y13 ff3 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff1">变频器频率设定功能<span class="ff2">：</span>通过<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">对变频器发送命令<span class="ff2">，</span>实现对变频器频率的设定<span class="ff4">。</span></span></div><div class="t m0 x1 h2 y14 ff3 fs0 fc0 sc0 ls0 ws0">3.<span class="_ _2"> </span><span class="ff1">变频器正反转控制功能<span class="ff2">：</span>通过<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">对变频器发送命令<span class="ff2">，</span>实现对变频器正反转的控制<span class="ff4">。</span></span></div><div class="t m0 x1 h2 y15 ff3 fs0 fc0 sc0 ls0 ws0">4.<span class="_ _2"> </span><span class="ff1">变频器频率<span class="ff4">、</span>电压读取功能<span class="ff2">：</span>通过<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">向变频器发送读取命令<span class="ff2">，</span>并从变频器接收反馈数据<span class="ff2">，</span>实</span></div><div class="t m0 x2 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">现对变频器频率和电压的读取<span class="ff4">。</span></div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls0 ws0">程序说明</div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">本案例的程序为非实物程序<span class="ff2">，</span>其中包含了详细的注释<span class="ff4">。</span>以下是程序的主要部分<span class="ff2">：</span></div><div class="t m0 x1 h2 y19 ff3 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span>Modbus<span class="_ _1"> </span><span class="ff1">通讯配置<span class="ff2">：</span>通过<span class="_ _0"> </span></span>FX3U 485BD<span class="_ _1"> </span><span class="ff1">板与<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">连接<span class="ff2">，</span>配置<span class="_ _0"> </span></span>Modbus<span class="_ _1"> </span><span class="ff1">通讯的参数<span class="ff2">，</span>例如波特率</span></div><div class="t m0 x2 h2 y1a ff4 fs0 fc0 sc0 ls0 ws0">、<span class="ff1">数据位</span>、<span class="ff1">校验位等</span>。</div><div class="t m0 x1 h2 y1b ff3 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff1">变频器频率设定<span class="ff2">：</span>通过<span class="_ _0"> </span></span>PLC<span class="_ _1"> </span><span class="ff1">向变频器发送写入命令<span class="ff2">，</span>设置变频器的频率<span class="ff4">。</span></span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>

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