diff --git a/ITC81DB_0H/Controls/CenterSystem/ControlCenterSystemCalibration.cs b/ITC81DB_0H/Controls/CenterSystem/ControlCenterSystemCalibration.cs
index 1cd9b8c..b482ba1 100644
--- a/ITC81DB_0H/Controls/CenterSystem/ControlCenterSystemCalibration.cs
+++ b/ITC81DB_0H/Controls/CenterSystem/ControlCenterSystemCalibration.cs
@@ -196,6 +196,9 @@ namespace ITC81DB_0H.Controls
             this.CalibrationButtonEnable(true, false);
             this.CalibrationPictureBoxVisible(true, false, false);
 
+            this.radioButtonDecimalPlaces1.Click -= new EventHandler(this.radioButtonDecimalPlaces_Click);
+            this.radioButtonDecimalPlaces2.Click -= new EventHandler(this.radioButtonDecimalPlaces_Click);
+
             if (this.ParentForm.ParentForm.SystemConfig1.DecimalPlaces == 1)
             {
                 if (this.radioButtonDecimalPlaces1.Checked != true)
@@ -207,8 +210,11 @@ namespace ITC81DB_0H.Controls
                     this.radioButtonDecimalPlaces2.Checked = true;
             }
 
-            if (this.labelWeightUnit.Text != this.ParentForm.ParentForm.SystemConfig1.Unit)
-                this.labelWeightUnit.Text = this.ParentForm.ParentForm.SystemConfig1.Unit;
+            this.radioButtonDecimalPlaces1.Click += new EventHandler(this.radioButtonDecimalPlaces_Click);
+            this.radioButtonDecimalPlaces2.Click += new EventHandler(this.radioButtonDecimalPlaces_Click);
+
+            //if (this.labelWeightUnit.Text != this.ParentForm.ParentForm.SystemConfig1.Unit)
+            //    this.labelWeightUnit.Text = this.ParentForm.ParentForm.SystemConfig1.Unit;
         }
         public void UpdateWeightDisplay(DataStore.EquipmentStatus status, WeightData data)
         {
@@ -425,6 +431,8 @@ namespace ITC81DB_0H.Controls
 
         private void radioButtonDecimalPlaces_Click(object sender, EventArgs e)
         {
+            string value = "";
+
             //this.ParentForm.ParentForm.TransferDataStream(CommunicationCommand.Read, CommunicationID.MainBoard, CommunicationAddress.ParameterRead3901, "");
             this.ParentForm.ParentForm.OpenSmartFileIO();
 
@@ -481,6 +489,9 @@ namespace ITC81DB_0H.Controls
             }
 
             this.ParentForm.ParentForm.CloseSmartFileIO();
+            value = Helper.StringZeroFillDigits4(this.ParentForm.ParentForm.SystemConfig1.DecimalPlaces.ToString());
+            this.ParentForm.ParentForm.TransferDataStream(CommunicationCommand.Write, CommunicationID.MainBoard, CommunicationAddress.DecimalPlaces, value);
+
             this.ParentForm.ParentForm.ReLoadProductFile();
             this.ParentForm.ParentForm.TransferRandomMode();
         }
diff --git a/ITC81DB_0H/DataStore.cs b/ITC81DB_0H/DataStore.cs
index 76e1dd3..d990ae7 100644
--- a/ITC81DB_0H/DataStore.cs
+++ b/ITC81DB_0H/DataStore.cs
@@ -509,6 +509,8 @@ namespace ITC81DB_0H
         public static readonly string BalanceWeight = "3002";
         // 중량조정 - 한눈의 값
         public static readonly string Digit = "3003";
+        // 중량조정 - 소수점
+        public static readonly string DecimalPlaces = "3016";
         // 중량조정 - 상수값 읽기
         public static readonly string ReadConstant = "3601";
         // 중량조정 - 파라미터 읽기
diff --git a/ITC81DB_0H/Forms/FormMain.cs b/ITC81DB_0H/Forms/FormMain.cs
index d294b3f..068f477 100644
--- a/ITC81DB_0H/Forms/FormMain.cs
+++ b/ITC81DB_0H/Forms/FormMain.cs
@@ -6762,7 +6762,7 @@ namespace ITC81DB_0H.Forms
             sb.Append("0000000");                                                                                   // Dummy2(7)
             sb.Append("0000");                                                                                   // Dummy3(4)
             sb.Append("0000");                                                                                   // Dummy4(4)
-            sb.Append("0000");                                                                                   // Dummy5(4)
+            sb.Append(Helper.StringZeroFillDigits4(this.SystemConfig1.DecimalPlaces.ToString())); // 소수점(4)
             sb.Append(Helper.StringZeroFillDigits4(productNumber.ToString()));                      // 품번 
 
             this.TransferDataStream(CommunicationCommand.Write, CommunicationID.MainBoard, CommunicationAddress.SystemParameterWriteAll, sb.ToString());
diff --git a/ITC81DB_0H/bin/Release/ITC81DB_0H.exe b/ITC81DB_0H/bin/Release/ITC81DB_0H.exe
index f7a13a3..6d17441 100644
Binary files a/ITC81DB_0H/bin/Release/ITC81DB_0H.exe and b/ITC81DB_0H/bin/Release/ITC81DB_0H.exe differ
diff --git a/ITC81DB_0H/obj/Release/ITC81DB_0H.exe b/ITC81DB_0H/obj/Release/ITC81DB_0H.exe
index f7a13a3..6d17441 100644
Binary files a/ITC81DB_0H/obj/Release/ITC81DB_0H.exe and b/ITC81DB_0H/obj/Release/ITC81DB_0H.exe differ