diff --git a/Modbus.Net/ModBus.Net/BaseMachine.cs b/Modbus.Net/ModBus.Net/BaseMachine.cs
index b321a8b..e2c146f 100644
--- a/Modbus.Net/ModBus.Net/BaseMachine.cs
+++ b/Modbus.Net/ModBus.Net/BaseMachine.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 
 namespace ModBus.Net
 {
@@ -53,17 +54,22 @@ namespace ModBus.Net
             KeepConnect = keepConnect;
         }
 
-        public Dictionary<string,ReturnUnit> GetDatas()
+        public Dictionary<string, ReturnUnit> GetDatas()
+        {
+            return AsyncHelper.RunSync(GetDatasAsync);
+        }
+
+        public async Task<Dictionary<string,ReturnUnit>> GetDatasAsync()
         {
             Dictionary<string, ReturnUnit> ans = new Dictionary<string, ReturnUnit>();
             if (!BaseUtility.IsConnected)
             {
-                BaseUtility.Connect();
+                await BaseUtility.ConnectAsync();
             }
             if (!BaseUtility.IsConnected) return null;
             foreach (var communicateAddress in CommunicateAddresses)
             {
-                var datas = BaseUtility.GetDatas<byte>(2, 0, AddressFormater.FormatAddress(communicateAddress.Area,communicateAddress.Address), communicateAddress.GetCount);
+                var datas = await BaseUtility.GetDatasAsync<byte>(2, 0, AddressFormater.FormatAddress(communicateAddress.Area,communicateAddress.Address), communicateAddress.GetCount);
                 if (datas == null || datas.Length == 0) return null;
                 int pos = 0;
                 while (pos < communicateAddress.GetCount)
@@ -94,6 +100,11 @@ namespace ModBus.Net
             return BaseUtility.Connect();
         }
 
+        public async Task<bool> ConnectAsync()
+        {
+            return await BaseUtility.ConnectAsync();
+        }
+
         public bool Disconnect()
         {
             return BaseUtility.Disconnect();
diff --git a/Modbus.Net/ModBus.Net/BaseProtocal.cs b/Modbus.Net/ModBus.Net/BaseProtocal.cs
index 6728642..ab85f4c 100644
--- a/Modbus.Net/ModBus.Net/BaseProtocal.cs
+++ b/Modbus.Net/ModBus.Net/BaseProtocal.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Threading.Tasks;
 
 namespace ModBus.Net
 {
@@ -62,6 +63,16 @@ namespace ModBus.Net
             return ProtocalLinker.SendReceive(ProtocalUnit.TranslateContent(content));
         }
 
+        /// <summary>
+        /// 发送协议内容并接收，一般方法(异步）
+        /// </summary>
+        /// <param name="content"></param>
+        /// <returns></returns>
+        public virtual async Task<byte[]> SendReceiveAsync(params object[] content)
+        {
+            return await ProtocalLinker.SendReceiveAsync(ProtocalUnit.TranslateContent(content));
+        }
+
         /// <summary>
         /// 发送协议，通过传入需要使用的协议内容和输入结构
         /// </summary>
@@ -92,12 +103,48 @@ namespace ModBus.Net
             return null;
         }
 
+        /// <summary>
+        /// 发送协议，通过传入需要使用的协议内容和输入结构（异步）
+        /// </summary>
+        /// <param name="unit"></param>
+        /// <param name="content"></param>
+        /// <returns></returns>
+        public virtual async Task<OutputStruct> SendReceiveAsync(ProtocalUnit unit, InputStruct content)
+        {
+            int t = 0;
+            //如果为特别处理协议的话，跳过协议扩展收缩          
+            var formatContent = unit.Format(content);
+            if (formatContent != null)
+            {
+                byte[] receiveContent;
+                if (unit is SpecialProtocalUnit)
+                {
+                    receiveContent = await ProtocalLinker.SendReceiveWithoutExtAndDecAsync(formatContent);
+                }
+                else
+                {
+                    receiveContent = await ProtocalLinker.SendReceiveAsync(formatContent);
+                }
+                if (receiveContent != null)
+                {
+                    return unit.Unformat(receiveContent, ref t);
+                }
+            }
+            return null;
+        }
+
         /// <summary>
         /// 协议连接开始
         /// </summary>
         /// <returns></returns>
         public abstract bool Connect();
 
+        /// <summary>
+        /// 协议连接开始（异步）
+        /// </summary>
+        /// <returns></returns>
+        public abstract Task<bool> ConnectAsync();
+
         /// <summary>
         /// 协议连接断开
         /// </summary>
diff --git a/Modbus.Net/ModBus.Net/BaseUtility.cs b/Modbus.Net/ModBus.Net/BaseUtility.cs
index 108ac5b..314125b 100644
--- a/Modbus.Net/ModBus.Net/BaseUtility.cs
+++ b/Modbus.Net/ModBus.Net/BaseUtility.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 
 namespace ModBus.Net
 {
@@ -36,6 +37,7 @@ namespace ModBus.Net
         /// </summary>
         /// <param name="connectionType">连接类型</param>
         public abstract void SetConnectionType(int connectionType);
+
         /// <summary>
         /// 获取数据
         /// </summary>
@@ -44,7 +46,20 @@ namespace ModBus.Net
         /// <param name="startAddress">开始地址</param>
         /// <param name="getByteCount">获取类型和个数</param>
         /// <returns>接收到的byte数据</returns>
-        protected abstract byte[] GetDatas(byte belongAddress, byte masterAddress, string startAddress, int getByteCount);
+        protected virtual byte[] GetDatas(byte belongAddress, byte masterAddress, string startAddress, int getByteCount)
+        {
+            return AsyncHelper.RunSync(() => GetDatasAsync(belongAddress, masterAddress, startAddress, getByteCount));
+        }
+
+        /// <summary>
+        /// 获取数据（异步）
+        /// </summary>
+        /// <param name="belongAddress">从站地址</param>
+        /// <param name="masterAddress">主站地址</param>
+        /// <param name="startAddress">开始地址</param>
+        /// <param name="getByteCount">获取类型和个数</param>
+        /// <returns>接收到的byte数据</returns>
+        protected abstract Task<byte[]> GetDatasAsync(byte belongAddress, byte masterAddress, string startAddress, int getByteCount);
 
         public virtual object[] GetDatas(byte belongAddress, byte masterAddress, string startAddress,
             KeyValuePair<Type, int> getTypeAndCount)
@@ -63,6 +78,23 @@ namespace ModBus.Net
             }
         }
 
+        public virtual async Task<object[]> GetDatasAsync(byte belongAddress, byte masterAddress, string startAddress,
+            KeyValuePair<Type, int> getTypeAndCount)
+        {
+            try
+            {
+                string typeName = getTypeAndCount.Key.FullName;
+                double bCount = ValueHelper.Instance.ByteLength[typeName];
+                byte[] getBytes = await GetDatasAsync(belongAddress, masterAddress, startAddress,
+                    (int) Math.Ceiling(bCount*getTypeAndCount.Value));
+                return ValueHelper.Instance.ByteArrayToObjectArray(getBytes, getTypeAndCount);
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
+
         public virtual T[] GetDatas<T>(byte belongAddress, byte masterAddress, string startAddress,
             int getByteCount)
         {
@@ -78,6 +110,21 @@ namespace ModBus.Net
             }
         }
 
+        public virtual async Task<T[]> GetDatasAsync<T>(byte belongAddress, byte masterAddress, string startAddress,
+            int getByteCount)
+        {
+            try
+            {
+                var getBytes = await GetDatasAsync(belongAddress, masterAddress, startAddress,
+                    new KeyValuePair<Type, int>(typeof(T), getByteCount));
+                return ValueHelper.Instance.ObjectArrayToDestinationArray<T>(getBytes);
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
+
         public virtual object[] GetDatas(byte belongAddress, byte masterAddress, string startAddress,
             IEnumerable<KeyValuePair<Type, int>> getTypeAndCountList)
         {
@@ -96,9 +143,30 @@ namespace ModBus.Net
             catch (Exception)
             {
                 return null;
-            }
-            
+            }  
         }
+
+        public virtual async Task<object[]> GetDatasAsync(byte belongAddress, byte masterAddress, string startAddress,
+            IEnumerable<KeyValuePair<Type, int>> getTypeAndCountList)
+        {
+            try
+            {
+                int bAllCount = 0;
+                foreach (var getTypeAndCount in getTypeAndCountList)
+                {
+                    string typeName = getTypeAndCount.Key.FullName;
+                    double bCount = ValueHelper.Instance.ByteLength[typeName];
+                    bAllCount += (int)Math.Ceiling(bCount * getTypeAndCount.Value);
+                }
+                byte[] getBytes = await GetDatasAsync(belongAddress, masterAddress, startAddress, bAllCount);
+                return ValueHelper.Instance.ByteArrayToObjectArray(getBytes, getTypeAndCountList);
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
+
         /// <summary>
         /// 设置数据
         /// </summary>
@@ -107,8 +175,22 @@ namespace ModBus.Net
         /// <param name="startAddress">开始地址</param>
         /// <param name="setContents">设置数据</param>
         /// <returns>是否设置成功</returns>
-        public abstract bool SetDatas(byte belongAddress, byte masterAddress, string startAddress, object[] setContents);
+        public virtual bool SetDatas(byte belongAddress, byte masterAddress, string startAddress, object[] setContents)
+        {
+            return AsyncHelper.RunSync(() => SetDatasAsync(belongAddress, masterAddress, startAddress, setContents));
+        }
 
+        /// <summary>
+        /// 设置数据（异步）
+        /// </summary>
+        /// <param name="belongAddress">从站地址</param>
+        /// <param name="masterAddress">主站地址</param>
+        /// <param name="startAddress">开始地址</param>
+        /// <param name="setContents">设置数据</param>
+        /// <returns>是否设置成功</returns>
+        public abstract Task<bool> SetDatasAsync(byte belongAddress, byte masterAddress, string startAddress, object[] setContents);
+        
+        /*
         /// <summary>
         /// 获取PLC时间
         /// </summary>
@@ -123,15 +205,22 @@ namespace ModBus.Net
         /// <param name="setTime">设置PLC时间</param>
         /// <returns>设置是否成功</returns>
         public abstract bool SetTime(byte belongAddress, DateTime setTime);
+        */
 
         public bool Connect()
         {
             return Wrapper.Connect();
         }
 
+        public async Task<bool> ConnectAsync()
+        {
+            return await Wrapper.ConnectAsync();
+        }
+
         public bool Disconnect()
         {
             return Wrapper.Disconnect();
         }
+
     }
 }
diff --git a/Modbus.Net/ModBus.Net/ModbusProtocal.cs b/Modbus.Net/ModBus.Net/ModbusProtocal.cs
index c116185..49f6aff 100644
--- a/Modbus.Net/ModBus.Net/ModbusProtocal.cs
+++ b/Modbus.Net/ModBus.Net/ModbusProtocal.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 
 internal enum ModbusProtocalVariableFunctionCode : byte
 {
@@ -44,6 +45,11 @@ namespace ModBus.Net
         {
             return ProtocalLinker.Connect();
         }
+
+        public override async Task<bool> ConnectAsync()
+        {
+            return await ProtocalLinker.ConnectAsync();
+        }
     }
 
     #region 读PLC数据
diff --git a/Modbus.Net/ModBus.Net/ModbusUtility.cs b/Modbus.Net/ModBus.Net/ModbusUtility.cs
index b407a84..10bfe4d 100644
--- a/Modbus.Net/ModBus.Net/ModbusUtility.cs
+++ b/Modbus.Net/ModBus.Net/ModbusUtility.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 
 /// <summary>
 /// Modbus连接类型
@@ -65,28 +66,28 @@ namespace ModBus.Net
             ModbusType = (ModbusType) connectionType;
         }
 
-        protected override byte[] GetDatas(byte belongAddress, byte materAddress, string startAddress, int getByteCount)
+        protected override async Task<byte[]> GetDatasAsync(byte belongAddress, byte masterAddress, string startAddress, int getByteCount)
         {
             try
             {
                 var inputStruct = new ReadDataModbusInputStruct(belongAddress, startAddress, getByteCount % 2 == 0 ? (ushort)(getByteCount / 2) : (ushort)(getByteCount / 2 + 1), AddressTranslator);
-                var outputStruct =
-                    Wrapper.SendReceive(Wrapper[typeof(ReadDataModbusProtocal)], inputStruct) as ReadDataModbusOutputStruct;
+                var outputStruct = await 
+                    Wrapper.SendReceiveAsync(Wrapper[typeof(ReadDataModbusProtocal)], inputStruct) as ReadDataModbusOutputStruct;
                 return outputStruct.DataValue;
             }
             catch
             {
                 return null;
-            }    
+            }
         }
 
-        public override bool SetDatas(byte belongAddress, byte materAddress, string startAddress, object[] setContents)
+        public override async Task<bool> SetDatasAsync(byte belongAddress, byte masterAddress, string startAddress, object[] setContents)
         {
             try
             {
                 var inputStruct = new WriteDataModbusInputStruct(belongAddress, startAddress, setContents, AddressTranslator);
-                var outputStruct =
-                    Wrapper.SendReceive(Wrapper[typeof(WriteDataModbusProtocal)], inputStruct) as
+                var outputStruct = await
+                    Wrapper.SendReceiveAsync(Wrapper[typeof(WriteDataModbusProtocal)], inputStruct) as
                         WriteDataModbusOutputStruct;
                 if (outputStruct.WriteCount != setContents.Length) return false;
                 return true;
@@ -97,6 +98,7 @@ namespace ModBus.Net
             }
         }
 
+        /*
         public override DateTime GetTime(byte belongAddress)
         {
             try
@@ -128,5 +130,6 @@ namespace ModBus.Net
                 return false;
             }
         }
+        */
     }
 }
diff --git a/Modbus.Net/ModBus.Net/ProtocalLinker.cs b/Modbus.Net/ModBus.Net/ProtocalLinker.cs
index 2eb0d0a..51cf9ff 100644
--- a/Modbus.Net/ModBus.Net/ProtocalLinker.cs
+++ b/Modbus.Net/ModBus.Net/ProtocalLinker.cs
@@ -1,4 +1,5 @@
 using System.Reflection;
+using System.Threading.Tasks;
 
 namespace ModBus.Net
 {
@@ -29,6 +30,11 @@ namespace ModBus.Net
             return _baseConnector.Connect();
         }
 
+        public async Task<bool> ConnectAsync()
+        {
+            return await _baseConnector.ConnectAsync();
+        }
+
         public bool Disconnect()
         {
             return _baseConnector.Disconnect();
@@ -40,9 +46,19 @@ namespace ModBus.Net
         /// <param name="content">发送协议的内容</param>
         /// <returns>接收协议的内容</returns>
         public virtual byte[] SendReceive(byte[] content)
+        {
+            return AsyncHelper.RunSync(() => SendReceiveAsync(content));
+        }
+
+        /// <summary>
+        /// 发送并接收数据
+        /// </summary>
+        /// <param name="content">发送协议的内容</param>
+        /// <returns>接收协议的内容</returns>
+        public virtual async Task<byte[]> SendReceiveAsync(byte[] content)
         {
             byte[] extBytes = BytesExtend(content);
-            byte[] receiveBytes = SendReceiveWithoutExtAndDec(extBytes);
+            byte[] receiveBytes = await SendReceiveWithoutExtAndDecAsync(extBytes);
             return receiveBytes == null ? null : BytesDecact(receiveBytes);
         }
 
@@ -52,9 +68,19 @@ namespace ModBus.Net
         /// <param name="content">发送协议的内容</param>
         /// <returns>接收协议的内容</returns>
         public virtual byte[] SendReceiveWithoutExtAndDec(byte[] content)
+        {
+            return AsyncHelper.RunSync(() => SendReceiveWithoutExtAndDecAsync(content));
+        }
+
+        /// <summary>
+        /// 发送并接收数据，不进行协议扩展和收缩，用于特殊协议
+        /// </summary>
+        /// <param name="content">发送协议的内容</param>
+        /// <returns>接收协议的内容</returns>
+        public virtual async Task<byte[]> SendReceiveWithoutExtAndDecAsync(byte[] content)
         {
             //发送数据
-            byte[] receiveBytes = _baseConnector.SendMsg(content);
+            byte[] receiveBytes = await _baseConnector.SendMsgAsync(content);
             //容错处理
             if (!CheckRight(receiveBytes)) return null;
             //返回字符
diff --git a/Modbus.Net/ModBus.Net/SimenseTcpProtocal.cs b/Modbus.Net/ModBus.Net/SimenseTcpProtocal.cs
index 3a3da3c..893a05b 100644
--- a/Modbus.Net/ModBus.Net/SimenseTcpProtocal.cs
+++ b/Modbus.Net/ModBus.Net/SimenseTcpProtocal.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 
 namespace ModBus.Net
 {
@@ -31,45 +32,68 @@ namespace ModBus.Net
         }
 
         public override byte[] SendReceive(params object[] content)
+        {
+            return AsyncHelper.RunSync(() => SendReceiveAsync(content));
+        }
+
+        public override async Task<byte[]> SendReceiveAsync(params object[] content)
         {
             while (!ProtocalLinker.IsConnected)
             {
-                Connect();
+                await ConnectAsync();
             }
-            return base.SendReceive(content);
+            return await base.SendReceiveAsync(content);
         }
 
         public override OutputStruct SendReceive(ProtocalUnit unit, InputStruct content)
+        {
+            return AsyncHelper.RunSync(() => SendReceiveAsync(unit, content));
+        }
+
+        public override async Task<OutputStruct> SendReceiveAsync(ProtocalUnit unit, InputStruct content)
         {
             if (!ProtocalLinker.IsConnected)
             {
                 if (connectTryCount > 10) return null;
-                Connect();
+                return await await ConnectAsync().ContinueWith(answer => answer.Result ? base.SendReceiveAsync(unit, content) : null);
             }
-            return base.SendReceive(unit, content);
+            return await base.SendReceiveAsync(unit, content);
         }
 
-        private OutputStruct ForceSendReceive(ProtocalUnit unit, InputStruct content)
+        private async Task<OutputStruct> ForceSendReceiveAsync(ProtocalUnit unit, InputStruct content)
         {
-            return base.SendReceive(unit, content);
+            return await base.SendReceiveAsync(unit, content);
         }
 
         public override bool Connect()
+        {
+            return AsyncHelper.RunSync(ConnectAsync);
+        }
+
+        public override async Task<bool> ConnectAsync()
         {
             connectTryCount++;
             ProtocalLinker = new SimenseTcpProtocalLinker(_ip);
-            if (ProtocalLinker.Connect())
+            if (await ProtocalLinker.ConnectAsync())
             {
+                connectTryCount = 0;
                 var inputStruct = new CreateReferenceSimenseInputStruct(_tdpuSize, _taspSrc, _tsapDst);
-                var outputStruct =
-                    (CreateReferenceSimenseOutputStruct)
-                        ForceSendReceive(this[typeof (CreateReferenceSimenseProtocal)], inputStruct);
-                if (!ProtocalLinker.IsConnected) return false;
-                var inputStruct2 = new EstablishAssociationSimenseInputStruct(0x0101, _maxCalling, _maxCalled, _maxPdu);
-                var outputStruct2 =
-                    (EstablishAssociationSimenseOutputStruct)
-                        SendReceive(this[typeof (EstablishAssociationSimenseProtocal)], inputStruct2);
-                return true;
+                return
+                    await await
+                        ForceSendReceiveAsync(this[typeof (CreateReferenceSimenseProtocal)], inputStruct)
+                            .ContinueWith(async answer =>
+                            {
+                                if (!ProtocalLinker.IsConnected) return false;
+                                var inputStruct2 = new EstablishAssociationSimenseInputStruct(0x0101, _maxCalling,
+                                    _maxCalled,
+                                    _maxPdu);
+                                var outputStruct2 =
+                                    (EstablishAssociationSimenseOutputStruct)
+                                        await
+                                            SendReceiveAsync(this[typeof (EstablishAssociationSimenseProtocal)],
+                                                inputStruct2);
+                                return true;
+                            });
             }
             return false;
         }
diff --git a/Modbus.Net/ModBus.Net/SimenseUtility.cs b/Modbus.Net/ModBus.Net/SimenseUtility.cs
index 6023886..223e1ab 100644
--- a/Modbus.Net/ModBus.Net/SimenseUtility.cs
+++ b/Modbus.Net/ModBus.Net/SimenseUtility.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 
 public enum SimenseType
 {
@@ -105,31 +106,30 @@ namespace ModBus.Net
             ConnectionType = (SimenseType) connectionType;
         }
 
-        protected override byte[] GetDatas(byte belongAddress, byte materAddress, string startAddress, int getByteCount)
+        protected override async Task<byte[]> GetDatasAsync(byte belongAddress, byte materAddress, string startAddress, int getByteCount)
         {
             try
             {
                 var readRequestSimenseInputStruct = new ReadRequestSimenseInputStruct(0xd3c7, SimenseTypeCode.Byte, startAddress, (ushort)getByteCount, AddressTranslator);
                 var readRequestSimenseOutputStruct =
-                     (ReadRequestSimenseOutputStruct)
-                         Wrapper.SendReceive(Wrapper[typeof(ReadRequestSimenseProtocal)], readRequestSimenseInputStruct);
+                     (ReadRequestSimenseOutputStruct) await
+                         Wrapper.SendReceiveAsync(Wrapper[typeof(ReadRequestSimenseProtocal)], readRequestSimenseInputStruct);
                 return readRequestSimenseOutputStruct.GetValue;
             }
             catch (Exception)
             {
                 return null;
             }
-            
         }
 
-        public override bool SetDatas(byte belongAddress, byte materAddress, string startAddress, object[] setContents)
+        public override async Task<bool> SetDatasAsync(byte belongAddress, byte materAddress, string startAddress, object[] setContents)
         {
             try
             {
                 var writeRequestSimenseInputStruct = new WriteRequestSimenseInputStruct(0xd3c8, startAddress, setContents, AddressTranslator);
                 var writeRequestSimenseOutputStruct =
-                    (WriteRequestSimenseOutputStruct)
-                        Wrapper.SendReceive(Wrapper[typeof(WriteRequestSimenseProtocal)], writeRequestSimenseInputStruct);
+                    (WriteRequestSimenseOutputStruct) await
+                        Wrapper.SendReceiveAsync(Wrapper[typeof(WriteRequestSimenseProtocal)], writeRequestSimenseInputStruct);
                 if (writeRequestSimenseOutputStruct.AccessResult == SimenseAccessResult.NoError)
                     return true;
                 else
@@ -139,9 +139,9 @@ namespace ModBus.Net
             {
                 return false;
             }
-            
         }
 
+        /*
         public override DateTime GetTime(byte belongAddress)
         {
             throw new NotImplementedException();
@@ -151,5 +151,6 @@ namespace ModBus.Net
         {
             throw new NotImplementedException();
         }
+        */
     }
 }
diff --git a/Modbus.Net/ModBus.Net/TaskManager.cs b/Modbus.Net/ModBus.Net/TaskManager.cs
index cc9993f..5403876 100644
--- a/Modbus.Net/ModBus.Net/TaskManager.cs
+++ b/Modbus.Net/ModBus.Net/TaskManager.cs
@@ -425,8 +425,8 @@ namespace ModBus.Net
                 //var ans = machine.GetDatas();
                 CancellationTokenSource cts = new CancellationTokenSource();
                 cts.CancelAfter(TimeSpan.FromSeconds(_getCycle));
-                var ans = await _tasks.StartNew(machine.GetDatas, cts.Token);
-                //var ans = await Task.Factory.StartNew(machine.GetDatas, cts.Token);
+                var ans = await machine.GetDatasAsync().WithCancellation(cts.Token);
+                //var ans = await machine.GetDatasAsync().WithCancellation(cts.Token);
                 if (!machine.IsConnected)
                 {
                     MoveMachineToUnlinked(machine.Id);