diff --git a/DM_Weight/Port/ModbusHelper.cs b/DM_Weight/Port/ModbusHelper.cs
index 5d3c9a5..4b572a1 100644
--- a/DM_Weight/Port/ModbusHelper.cs
+++ b/DM_Weight/Port/ModbusHelper.cs
@@ -35,6 +35,14 @@ namespace DM_Weight.Port
         }
         public static ModbusHelper GetInstance()
         {
+            //if (instance == null)
+            //{
+            //    lock (objLock)
+            //    {
+            //        if (instance == null)
+            //            instance = new ModbusHelper();
+            //    }
+            //}
             if (instance == null)
             {
                 lock (objLock)