diff --git a/HybirdFrameworkCore/Utils/ModelConvert.cs b/HybirdFrameworkCore/Utils/ModelConvert.cs
index cb8684c..50e37bd 100644
--- a/HybirdFrameworkCore/Utils/ModelConvert.cs
+++ b/HybirdFrameworkCore/Utils/ModelConvert.cs
@@ -6,20 +6,7 @@ namespace HybirdFrameworkCore.Utils;
 
 public static class ModelConvert
 {
-    public static readonly Type BOOLEAN = typeof(bool);
-    public static readonly Type BYTE = typeof(byte);
-    public static readonly Type SBYTE = typeof(sbyte);
-    public static readonly Type SHORT = typeof(short);
-    public static readonly Type USHORT = typeof(ushort);
-    public static readonly Type INT = typeof(int);
-    public static readonly Type UINT = typeof(uint);
-    public static readonly Type LONG = typeof(long);
-    public static readonly Type ULONG = typeof(ulong);
-    public static readonly Type FLOAT = typeof(float);
-    public static readonly Type DOUBLE = typeof(double);
-    public static readonly Type STRING = typeof(string);
-
-    public static T Declode<T>(byte[] bytes) where T : class, new()
+    public static T Decode<T>(byte[] bytes) where T : class, new()
     {
         T t = new T();
 
@@ -102,7 +89,6 @@ public static class ModelConvert
     {
         double offset = attribute.Offset;
         double scale = attribute.Scale;
-        Type propertyType = field.PropertyType;
 
         object? value = field.GetValue(t);
         return BitUtls.Value2Bytes(value, scale, offset);
diff --git a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
index ac87888..1280a60 100644
--- a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
+++ b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
@@ -15,7 +15,7 @@ public static class ModbusDecoder
             .Select(p => p.GetValue(t)).ToList();
 
         int startRegisterNo = Int32.MaxValue;
-        foreach (object field in fields)
+        foreach (object? field in fields)
         {
             if (field != null)
             {
@@ -27,7 +27,7 @@ public static class ModbusDecoder
             }
         }
 
-        foreach (object field in fields)
+        foreach (object? field in fields)
         {
             switch (field)
             {
diff --git a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
index 15e8dfe..0316fd0 100644
--- a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
+++ b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
@@ -1,5 +1,6 @@
 using System.Collections;
 using HslCommunication;
+using HslCommunication.Core;
 using HslCommunication.ModBus;
 using HybirdFrameworkCore.Utils;
 using log4net;
@@ -14,6 +15,8 @@ public class ModbusTcpMaster
     public string Ip { get; set; } = "192.168.1.5";
     public int Port { get; set; } = 502;
 
+    public DataFormat DataFormat { get; set; } = DataFormat.ABCD;
+
     public int Duration { get; set; } = 1000;
     public bool Connected { get; set; } = false;
 
@@ -40,6 +43,7 @@ public class ModbusTcpMaster
             if (ModbusTcpNet == null)
             {
                 ModbusTcpNet = new ModbusTcpNet(Ip, Port);
+                ModbusTcpNet.DataFormat = DataFormat;
                 OperateResult result = ModbusTcpNet.ConnectServer();
                 if (result.IsSuccess)
                 {
@@ -83,14 +87,11 @@ public class ModbusTcpMaster
     {
         if (ReadAction != null)
         {
-            // ReadAction(this);
             while (!StopFlag)
             {
                 try
                 {
-
                     ReadAction(this);
-
                     Thread.Sleep(Duration);
                 }
                 catch (Exception e)
@@ -99,6 +100,7 @@ public class ModbusTcpMaster
                 }
             }
         }
+
         GetLog().Info("stop listen");
     }
 
@@ -140,25 +142,27 @@ public class ModbusTcpMaster
         ModbusDataType dataType = property.Type;
         int start = property.Start;
         int length = property.Length;
+        int registerNo = property.RegisterNo - 40000;
         byte[] setValue = BitUtls.Value2Bytes(value, property.Scale, property.Offset);
         OperateResult operateResult;
+        
         switch (dataType)
         {
             case ModbusDataType.Byte:
 
                 start = start % 2 == 0 ? start / 2 : start / 2 + 1;
-                operateResult = ModbusTcpNet.Write("x=6;" + (property.RegisterNo - 40000 + start), setValue);
+                operateResult = ModbusTcpNet.Write("x=6;" + (registerNo + start), setValue);
                 result = operateResult.IsSuccess;
                 break;
             case ModbusDataType.Register:
-                operateResult = ModbusTcpNet.Write("x=16;" + (property.RegisterNo - 40000 + start), setValue);
+                operateResult = ModbusTcpNet.Write("x=16;" + (registerNo + start), setValue);
                 result = operateResult.IsSuccess;
                 break;
             case ModbusDataType.Bit:
-
                 start = start % 16 == 0 ? start / 16 : start / 16 + 1;
                 length = length % 8 == 0 ? length / 8 : length / 8 + 1;
-                OperateResult<byte[]> readResult = ModbusTcpNet.Read("x=3;" + (property.RegisterNo - 40000 + start), (ushort)length);
+                OperateResult<byte[]> readResult =
+                    ModbusTcpNet.Read("x=3;" + (registerNo + start), (ushort)length);
 
                 if (readResult.IsSuccess)
                 {
@@ -173,7 +177,7 @@ public class ModbusTcpMaster
 
                     bitArray.CopyTo(bytes, 0);
 
-                    operateResult = ModbusTcpNet.Write("x=6;" + (property.RegisterNo - 40000 + start), bytes);
+                    operateResult = ModbusTcpNet.Write("x=6;" + (registerNo + start), bytes);
                     result = operateResult.IsSuccess;
                 }