diff --git a/INT89DB_26.suo b/INT89DB_26.suo
index 466467a..5989693 100644
Binary files a/INT89DB_26.suo and b/INT89DB_26.suo differ
diff --git a/INT89DB_26/Forms/FormMain.cs b/INT89DB_26/Forms/FormMain.cs
index 302e085..d4f8d8c 100644
--- a/INT89DB_26/Forms/FormMain.cs
+++ b/INT89DB_26/Forms/FormMain.cs
@@ -620,6 +620,8 @@ namespace INT89DB_26.Forms
                         }
                     }
 
+                    this.Update30000Operation();
+
                     this.ChildFormMainDisplay.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
                     this.ChildFormSystemSetting.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
                     this.ChildFormEquipmentTest.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
@@ -634,6 +636,8 @@ namespace INT89DB_26.Forms
                         data.IsStart = false;
                     }
 
+                    this.Update30000Operation();
+
                     this.ChildFormMainDisplay.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
                     this.ChildFormSystemSetting.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
                     this.ChildFormEquipmentTest.UpdateEquipmentStatusDisplay(this.EquipmentStatus);
@@ -1866,6 +1870,12 @@ namespace INT89DB_26.Forms
             byte[] length2Value = new byte[2];
             byte[] length4Value = new byte[4];
 
+            int equipmentStatus;
+            if (this.EquipmentStatus == DataStore.EquipmentStatus.Start)
+                equipmentStatus = 1;
+            else
+                equipmentStatus = 0;
+
             startAddressInt = Modbus.ToBigEndianAndInt(startAddressByte);
             numberOfRegisterInt = Modbus.ToBigEndianAndInt(numberOfRegisterByte);
 
@@ -1994,12 +2004,6 @@ namespace INT89DB_26.Forms
                 double deadZoneLow = this.Current30000ModbusData.DeadZoneLowLimit;
                 double deadZoneHigh = this.Current30000ModbusData.DeadZoneHighLimit;
 
-                int equipmentStatus;
-                if (this.EquipmentStatus == DataStore.EquipmentStatus.Start)
-                    equipmentStatus = 1;
-                else
-                    equipmentStatus = 0;
-
                 for (int j = startAddressInt; j < startAddressInt + numberOfRegisterInt; j++)
                 {
                     switch (j)
@@ -2010,6 +2014,16 @@ namespace INT89DB_26.Forms
                             for (int i = 0; i < 2; i++)
                                 madeData[madeDataIndex + i] = length2Value[1 - i];
                             break;
+                        case (int)ModbusDefine._30000_Modbus.Operation_High:
+                            length4Value = GetBytes(this.Current30000ModbusData.OperationStatus);
+                            for (int i = 0; i < 2; i++)
+                                madeData[madeDataIndex + i] = length4Value[3 - i];
+                            break;
+                        case (int)ModbusDefine._30000_Modbus.Operation_Low:
+                            length4Value = GetBytes(this.Current30000ModbusData.OperationStatus);
+                            for (int i = 0; i < 2; i++)
+                                madeData[madeDataIndex + i] = length4Value[1 - i];
+                            break;
                         case (int)ModbusDefine._30000_Modbus.UnderRange_High_Float:
                             length4Value = GetBytes((Single)underValue);
                             for (int i = 0; i < 2; i++)
@@ -3103,6 +3117,16 @@ namespace INT89DB_26.Forms
                             for (int i = 0; i < 2; i++)
                                 madeData[madeDataIndex + i] = length2Value[1 - i];
                             break;
+                        case (int)ModbusDefine._30000_Modbus.Operation_High:
+                            length4Value = GetBytes(this.Current30000ModbusData.OperationStatus);
+                            for (int i = 0; i < 2; i++)
+                                madeData[madeDataIndex + i] = length4Value[3 - i];
+                            break;
+                        case (int)ModbusDefine._30000_Modbus.Operation_Low:
+                            length4Value = GetBytes(this.Current30000ModbusData.OperationStatus);
+                            for (int i = 0; i < 2; i++)
+                                madeData[madeDataIndex + i] = length4Value[1 - i];
+                            break;
                         case (int)ModbusDefine._30000_Modbus.UnderRange_High_Float:
                             length4Value = GetBytes((Single)underValue);
                             for (int i = 0; i < 2; i++)
@@ -4438,6 +4462,13 @@ namespace INT89DB_26.Forms
             return judgmentStatus;
         }
 
+        public void Update30000Operation()
+        {
+            if (this.EquipmentStatus == DataStore.EquipmentStatus.Start)
+                this.Current30000ModbusData.OperationStatus = 1;
+            else
+                this.Current30000ModbusData.OperationStatus = 0;
+        }
         public void Update30000DecimalPoint()
         {
             this.Current30000ModbusData.DecimalPoint = short.Parse(this.SystemConfig.DecimalPlaces.ToString());
diff --git a/INT89DB_26/InModbus/ModbusDefine.cs b/INT89DB_26/InModbus/ModbusDefine.cs
index 12778cf..479b313 100644
--- a/INT89DB_26/InModbus/ModbusDefine.cs
+++ b/INT89DB_26/InModbus/ModbusDefine.cs
@@ -10,6 +10,8 @@ namespace INT89DB_26.Int_Modbus
         public enum _30000_Modbus
         {
             DecimalPoint = 0,
+            Operation_High = 40,
+            Operation_Low = 41,
             UnderRange_High_Float = 1010,
             UnderRange_Low_Float = 1011,
             PassRange_High_Float = 1012,
diff --git a/INT89DB_26/InModbus/Modbus_30000_Data.cs b/INT89DB_26/InModbus/Modbus_30000_Data.cs
index 2734ea9..ea0760e 100644
--- a/INT89DB_26/InModbus/Modbus_30000_Data.cs
+++ b/INT89DB_26/InModbus/Modbus_30000_Data.cs
@@ -10,6 +10,7 @@ namespace INT89DB_26.Int_Modbus
     {
         #region Field
         private short m_DecimalPoint;
+        private int m_OperationStatus;
         private double m_UnderValue;
         private double m_PassValue;
         private double m_OverValue;
@@ -37,6 +38,11 @@ namespace INT89DB_26.Int_Modbus
             get { return this.m_DecimalPoint; }
             set { this.m_DecimalPoint = value; }
         }
+        public int OperationStatus
+        {
+            get { return this.m_OperationStatus; }
+            set { this.m_OperationStatus = value; }
+        }
         public double UnderValue
         {
             get { return this.m_UnderValue; }
@@ -58,7 +64,14 @@ namespace INT89DB_26.Int_Modbus
             set { this.m_TareValue = value; }
         }
 
-
+        public string HexStringOperationStatus
+        {
+            get
+            {
+                string hexString = this.OperationStatus.ToString("X8");
+                return hexString;
+            }
+        }
         public string HexStringUnderValue
         {
             get
@@ -150,6 +163,7 @@ namespace INT89DB_26.Int_Modbus
         public void Initialization()
         {
             this.DecimalPoint = 1;
+            this.OperationStatus = 0;
             this.UnderValue = 100.0;
             this.PassValue = 200.0;
             this.OverValue = 300.0;