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<title data-rh="true">OPCDA驱动 | ThingsGateway</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://diego2098.gitee.io/thingsgateway/docs/06、采集驱动说明/opcda"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="OPCDA驱动 | ThingsGateway"><meta data-rh="true" name="description" content="使用OPCDA插件时，需安装OPC核心库，文件地址"><meta data-rh="true" property="og:description" content="使用OPCDA插件时，需安装OPC核心库，文件地址"><link data-rh="true" rel="icon" href="/thingsgateway/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://diego2098.gitee.io/thingsgateway/docs/06、采集驱动说明/opcda"><link data-rh="true" rel="alternate" href="https://diego2098.gitee.io/thingsgateway/docs/06、采集驱动说明/opcda" hreflang="en"><link data-rh="true" rel="alternate" href="https://diego2098.gitee.io/thingsgateway/docs/06、采集驱动说明/opcda" hreflang="x-default"><link rel="stylesheet" href="/thingsgateway/assets/css/styles.a3991719.css">
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class="breadcrumbs__item"><span class="breadcrumbs__link">06、采集驱动说明</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">6.2、OPCDA驱动</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>OPCDA驱动</h1></header><div class="theme-admonition theme-admonition-tip alert alert--success admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span><mdxadmonitiontitle><code>OPCDA驱动注意</code></mdxadmonitiontitle></div><div class="admonitionContent_S0QG"><p> 使用OPCDA插件时，需安装OPC核心库，<a href="https://gitee.com/diego2098/ThingsGateway/attach_files" target="_blank" rel="noopener noreferrer">文件地址</a></p></div></div><h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="一设备配置">（一）设备配置<a class="hash-link" href="#一设备配置" title="Direct link to heading"></a></h3><table><thead><tr><th>属性</th><th>说明</th><th>默认值/备注</th></tr></thead><tbody><tr><td>激活订阅</td><td>是否采用OPC订阅方式读取变量</td><td>True</td></tr><tr><td>检查重连频率</td><td>每隔设定时间获取一次服务器状态，并尝试重新连接</td><td>60000</td></tr><tr><td>死区</td><td>OPC死区</td><td>0</td></tr><tr><td>自动分组大小</td><td>每隔设定大小分一个OPCGroup</td><td>500</td></tr><tr><td>IP</td><td>远程OPC IP地址，为空时默认localhost</td><td>localhost</td></tr><tr><td>OPC名称</td><td>OPC名称，可识别ProgID或CLSID</td><td>Kepware.KEPServerEX.V6</td></tr><tr><td>更新频率</td><td>订阅更新频率或者连读频率</td><td>1000</td></tr></tbody></table><h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="二变量配置">（二）变量配置<a class="hash-link" href="#二变量配置" title="Direct link to heading"></a></h3><h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="变量地址说明">变量地址说明<a class="hash-link" href="#变量地址说明" title="Direct link to heading"></a></h4><ul><li>变量地址即为 OPC ItemID</li></ul><h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="变量特殊方法说明">变量特殊方法说明<a class="hash-link" href="#变量特殊方法说明" 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