diff --git a/formula_manage.csproj b/formula_manage.csproj
index 1c991ce..a965074 100644
--- a/formula_manage.csproj
+++ b/formula_manage.csproj
@@ -154,6 +154,9 @@
     <Reference Include="ModernUI.Xceed.Toolkit, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\SamOatesGames.ModernUI.Xceed.Toolkit.1.0.1905191936\lib\net45\ModernUI.Xceed.Toolkit.dll</HintPath>
     </Reference>
+    <Reference Include="NModbus, Version=3.0.81.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\NModbus.3.0.81\lib\net46\NModbus.dll</HintPath>
+    </Reference>
     <Reference Include="Smart.FormDesigner, Version=1.4.8302.26895, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\Smart.FormDesigner.1.4.3\lib\net40\Smart.FormDesigner.dll</HintPath>
     </Reference>
diff --git a/packages.config b/packages.config
index 4295908..e0837f3 100644
--- a/packages.config
+++ b/packages.config
@@ -7,6 +7,7 @@
   <package id="FastReport.Net.Demo" version="2024.1.2" targetFramework="net462" />
   <package id="ModernUI.WPF" version="1.0.9" targetFramework="net46" />
   <package id="MvvmLightLibs" version="5.4.1.1" targetFramework="net46" />
+  <package id="NModbus" version="3.0.81" targetFramework="net462" />
   <package id="SamOatesGames.ModernUI.Xceed.Toolkit" version="1.0.1905191936" targetFramework="net46" />
   <package id="Smart.FormDesigner" version="1.4.3" targetFramework="net462" />
   <package id="System.ObjectModel" version="4.3.0" targetFramework="net46" />