diff --git a/ProductionSystem/Untils/Tool/StepTool.cs b/ProductionSystem/Untils/Tool/StepTool.cs
index fc33f06..85b3c43 100644
--- a/ProductionSystem/Untils/Tool/StepTool.cs
+++ b/ProductionSystem/Untils/Tool/StepTool.cs
@@ -142,7 +142,11 @@ namespace ProductionSystem.Untils.Tool
 
                 XTrace.WriteLine("停止水泵1");
                 //停止水泵1
-                uyTool.closeSend();
+                if (uyTool != null)
+                {
+                    uyTool.closeSend();
+                }
+
                 TmTool.WritePlc(TmTool.ShuiBeng1, 0);
                 if (_curveTool != null)
                 {
diff --git a/ProductionSystem/Untils/Tool/Uy.cs b/ProductionSystem/Untils/Tool/Uy.cs
index 7a759ea..98a73a3 100644
--- a/ProductionSystem/Untils/Tool/Uy.cs
+++ b/ProductionSystem/Untils/Tool/Uy.cs
@@ -57,7 +57,7 @@ namespace ProductionSystem.Untils.Tool
             XTrace.WriteLine($"水泵Uy 第[{mo}-{com}]个 写入设备报文:{sendMes}");
 
            
-            mfSerialInfo.MsgFunc = Fun;
+            mfSerialInfo.MsgFunc += Fun;
             mfSerialInfo.SendMsg(sendMes,50);
             return b;