diff --git a/HybirdFrameworkCore/Utils/BitUtls.cs b/HybirdFrameworkCore/Utils/BitUtls.cs
index 86ecac7..075bb4c 100644
--- a/HybirdFrameworkCore/Utils/BitUtls.cs
+++ b/HybirdFrameworkCore/Utils/BitUtls.cs
@@ -15,10 +15,11 @@ public static class BitUtls
     /// <param name="scale">精度</param>
     /// <param name="round">保留几位小数</param>
     /// <param name="offset">位偏移</param>
+    /// <param name="unSign">对float和double 默认无符号</param>
     /// <returns></returns>
     /// <exception cref="ArgumentException"></exception>
     public static object Bytes2Value(byte[] bytes, Type propertyType, int start, int length,
-        double scale, int round, double offset)
+        double scale, int round, double offset, bool unSign = true)
     {
         if (propertyType == BOOLEAN) return Convert.ChangeType(Byte2Bit(bytes, start, length) == 1, propertyType);
 
@@ -44,17 +45,16 @@ public static class BitUtls
 
         if (propertyType == FLOAT)
             return
-                Convert.ChangeType(Math.Round(Byte2Float(bytes, start, length, scale) - offset, round), propertyType);
+                Convert.ChangeType(Math.Round(Byte2Float(bytes, start, length, scale, unSign) - offset, round), propertyType);
 
         if (propertyType == DOUBLE)
             return
-                Convert.ChangeType(Math.Round(Byte2Double(bytes, start, length, scale) - offset, round),
+                Convert.ChangeType(Math.Round(Byte2Double(bytes, start, length, scale, unSign) - offset, round),
                     propertyType);
 
         if (propertyType == STRING)
         {
-            
-            return Convert.ChangeType(Encoding.ASCII.GetString(bytes, start, length), propertyType);
+            return Convert.ChangeType(Encoding.ASCII.GetString(bytes, start, length/8), propertyType);
         }
 
         if (propertyType == BYTEARRAY)
@@ -221,23 +221,23 @@ public static class BitUtls
         return list.ToArray();
     }
 
-    public static float Byte2Float(byte[] bytes, int startBit, int length, double factor)
+    public static float Byte2Float(byte[] bytes, int startBit, int length, double factor, bool unSign)
     {
         if (length < 17)
         {
-            int d = Byte2Int16(bytes, startBit, length);
+            int d =unSign ? Byte2UInt16(bytes, startBit, length) : Byte2Int16(bytes, startBit, length);
             return (float)(d * factor);
         }
         else
         {
-            var d = Byte2Int32(bytes, startBit, length);
+            Int64 d = unSign ? Byte2UInt32(bytes, startBit, length) :  Byte2Int32(bytes, startBit, length) ;
             return (float)(d * factor);
         }
     }
 
-    public static double Byte2Double(byte[] bytes, int startBit, int length, double factor)
+    public static double Byte2Double(byte[] bytes, int startBit, int length, double factor, bool unSign)
     {
-        var d = Byte2UInt32(bytes, startBit, length);
+        Int64 d = unSign ? Byte2UInt32(bytes, startBit, length) :  Byte2Int32(bytes, startBit, length);
         return (float)(d * factor);
     }
 
diff --git a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
index fee6009..08521d0 100644
--- a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
+++ b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusDecoder.cs
@@ -91,7 +91,7 @@ public static class ModbusDecoder
                 }
                 case ModbusProperty<float> floatProperty:
                 {
-                    SetPropertyValue(startRegisterNo, floatProperty, decodeUseBytes);
+                    SetPropertyValue(startRegisterNo, floatProperty, decodeUseBytes, true);
                     // SetPropertyValue(floatProperty.RegisterNo, floatProperty, decodeUseBytes);
                     break;
                 }
@@ -112,7 +112,7 @@ public static class ModbusDecoder
         return t;
     }
 
-    private static void SetPropertyValue<T>(int startRegisterNo, ModbusProperty<T> field, byte[] bytes)
+    private static void SetPropertyValue<T>(int startRegisterNo, ModbusProperty<T> field, byte[] bytes, bool unSign = true)
     {
         var registerNo = field.RegisterNo;
         var start = field.Start;
@@ -134,7 +134,7 @@ public static class ModbusDecoder
                 _ => length
             };
 
-        var value = BitUtls.Bytes2Value(bytes, valueType, start, length, scale, round, offset);
+        var value = BitUtls.Bytes2Value(bytes, valueType, start, length, scale, round, offset, unSign);
         field.Value = (T)value;
     }
 }
\ No newline at end of file
diff --git a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
index e4ad4aa..2787bca 100644
--- a/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
+++ b/HybirdFrameworkDriver/ModbusTcpMaster/ModbusTcpMaster.cs
@@ -12,7 +12,7 @@ public class ModbusTcpMaster
 
     private static readonly ILog Log = LogManager.GetLogger(typeof(ModbusTcpMaster));
 
-    private ModbusTcpNet ModbusTcpNet;
+    private ModbusTcpNet? ModbusTcpNet;
 
     public string Ip { get; set; } = "127.0.0.1";
 
@@ -23,6 +23,11 @@ public class ModbusTcpMaster
     public int Duration { get; set; } = 1000;
     public bool Connected { get; set; }
 
+    /// <summary>
+    /// 自动重连开关
+    /// </summary>
+    public bool AutoReConnect { get; set; }
+
     public string connectId { get; set; }
 
     public MyReadAction? ReadAction { get; set; }
@@ -36,8 +41,8 @@ public class ModbusTcpMaster
 
     public bool Connect()
     {
+        Thread.Sleep(Duration);
         GetLog().Info($"begin to connect {Ip}:{Port}");
-
         try
         {
             if (ModbusTcpNet == null)
@@ -55,12 +60,20 @@ public class ModbusTcpMaster
                 else
                 {
                     GetLog().Info($"connect {Ip}:{Port} failed {result.Message}");
+                    if (AutoReConnect)
+                    {
+                        return Connect();
+                    }
                 }
             }
         }
         catch (Exception e)
         {
             GetLog().Error($"connect {Ip}:{Port} exception {e.Message}");
+            if (AutoReConnect)
+            {
+                return Connect();
+            }
         }
 
         return Connected;
@@ -112,7 +125,7 @@ public class ModbusTcpMaster
         return null;
     }
 
-    public byte[]? BatchRead(int registerNo, int length)
+    public byte[]? BatchReadHolderRegister(int registerNo, int length)
     {
         OperateResult<byte[]> result = ModbusTcpNet.Read("x=3;" + registerNo, (ushort)length);
         if (result.IsSuccess) return result.Content;
@@ -120,6 +133,58 @@ public class ModbusTcpMaster
         return null;
     }
 
+    public byte[]? BatchReadInputRegister(int registerNo, int length)
+    {
+        OperateResult<byte[]> result = ModbusTcpNet.Read("x=4;" + registerNo, (ushort)length);
+        if (result.IsSuccess) return result.Content;
+
+        return null;
+    }
+
+    /// <summary>
+    /// 读取线圈，需要指定起始地址，如果富文本地址不指定，默认使用的功能码是 0x01<br />
+    /// To read the coil, you need to specify the start address. If the rich text address is not specified, the default function code is 0x01.
+    /// </summary>
+    /// <param name="address">起始地址，格式为"1234"</param>
+    /// <returns>带有成功标志的bool对象</returns>
+    public OperateResult<bool> ReadCoil(string address) => ModbusTcpNet.ReadBool(address);
+
+    /// <summary>
+    /// 批量的读取线圈，需要指定起始地址，读取长度，如果富文本地址不指定，默认使用的功能码是 0x01<br />
+    /// For batch reading coils, you need to specify the start address and read length. If the rich text address is not specified, the default function code is 0x01.
+    /// </summary>
+    /// <param name="address">起始地址，格式为"1234"</param>
+    /// <param name="length">读取长度</param>
+    /// <returns>带有成功标志的bool数组对象</returns>
+    public OperateResult<bool[]> ReadCoil(string address, ushort length)
+    {
+        return ModbusTcpNet.ReadBool(address, length);
+    }
+
+    /// <summary>
+    /// 读取输入线圈，需要指定起始地址，如果富文本地址不指定，默认使用的功能码是 0x02<br />
+    /// To read the input coil, you need to specify the start address. If the rich text address is not specified, the default function code is 0x02.
+    /// </summary>
+    /// <param name="address">起始地址，格式为"1234"</param>
+    /// <returns>带有成功标志的bool对象</returns>
+    public OperateResult<bool> ReadDiscrete(string address)
+    {
+        return ModbusTcpNet.ReadDiscrete(address);
+    }
+
+    /// <summary>
+    /// 批量的读取输入点，需要指定起始地址，读取长度，如果富文本地址不指定，默认使用的功能码是 0x02<br />
+    /// To read input points in batches, you need to specify the start address and read length. If the rich text address is not specified, the default function code is 0x02
+    /// </summary>
+    /// <param name="address">起始地址，格式为"1234"</param>
+    /// <param name="length">读取长度</param>
+    /// <returns>带有成功标志的bool数组对象</returns>
+    public OperateResult<bool[]> ReadDiscrete(string address, ushort length)
+    {
+        return ModbusTcpNet.ReadDiscrete(address, length);
+    }
+
+
     public bool WriteValue<T>(ModbusProperty<T> property)
     {
         var value = property.Value;
diff --git a/HybirdFrameworkDriver/Session/ModbusSession.cs b/HybirdFrameworkDriver/Session/ModbusSession.cs
index 627c1b1..da750de 100644
--- a/HybirdFrameworkDriver/Session/ModbusSession.cs
+++ b/HybirdFrameworkDriver/Session/ModbusSession.cs
@@ -30,6 +30,6 @@ public class ModbusSession
 
     public byte[]? Read(int registerNo, int length)
     {
-        return ModbusTcpMaster.BatchRead(registerNo, length);
+        return ModbusTcpMaster.BatchReadHolderRegister(registerNo, length);
     }
 }
\ No newline at end of file
diff --git a/HybirdFrameworkDriver/Session/SessionMgr.cs b/HybirdFrameworkDriver/Session/SessionMgr.cs
index 48bded0..431901e 100644
--- a/HybirdFrameworkDriver/Session/SessionMgr.cs
+++ b/HybirdFrameworkDriver/Session/SessionMgr.cs
@@ -1,4 +1,5 @@
 using System.Collections.Concurrent;
+using DotNetty.Buffers;
 using DotNetty.Transport.Channels;
 using log4net;
 
@@ -16,10 +17,17 @@ public class SessionMgr
 
     public static IoSession? GetSession(string key)
     {
-        Dictionary.TryGetValue(key, out IoSession? value);
+        if (Dictionary.ContainsKey(key))
+        {
+            IoSession? value;
+            Dictionary.TryGetValue(key, out value);
+
         return value;
     }
 
+        return null;
+    }
+
     public static List<IoSession> GetSessionList()
     {
         return Dictionary.Values.ToList();
diff --git a/HybirdFrameworkDriver/TcpClient/TcpClient.cs b/HybirdFrameworkDriver/TcpClient/TcpClient.cs
index ae3bc11..199889c 100644
--- a/HybirdFrameworkDriver/TcpClient/TcpClient.cs
+++ b/HybirdFrameworkDriver/TcpClient/TcpClient.cs
@@ -1,3 +1,4 @@
+using System.Net;
 using System.Reflection;
 using Autofac;
 using Autofac.Core;
@@ -138,7 +139,7 @@ public class TcpClient<TH, TD, TE> : IDisposable where TH : IChannelHandler
         {
             try
             {
-                Task<IChannel> task = _bootstrap!.ConnectAsync(Host, Port);
+                Task<IChannel> task = _bootstrap!.ConnectAsync(new IPEndPoint(IPAddress.Parse(Host), Port));
                 Channel = task.Result;
                 Connected = Channel.Open;
             }