diff --git a/Modbus.Net/Modbus.Net/BaseMachine.cs b/Modbus.Net/Modbus.Net/BaseMachine.cs
index 27bd85d..3970885 100644
--- a/Modbus.Net/Modbus.Net/BaseMachine.cs
+++ b/Modbus.Net/Modbus.Net/BaseMachine.cs
@@ -5,6 +5,21 @@ using System.Threading.Tasks;
 
 namespace Modbus.Net
 {
+    /// <summary>
+    /// 获取设备值的方式
+    /// </summary>
+    public enum MachineGetDataType
+    {
+        /// <summary>
+        /// 地址
+        /// </summary>
+        Address,
+        /// <summary>
+        /// 通讯标识
+        /// </summary>
+        CommunicationTag
+    }
+
     /// <summary>
     /// 向设备设置值的方式
     /// </summary>
@@ -113,16 +128,18 @@ namespace Modbus.Net
         /// 读取数据
         /// </summary>
         /// <returns>从设备读取的数据</returns>
-        public Dictionary<string, ReturnUnit> GetDatas()
+        public Dictionary<string, ReturnUnit> GetDatas(MachineGetDataType getDataType)
         {
-            return AsyncHelper.RunSync(GetDatasAsync);
+            return AsyncHelper.RunSync(()=>GetDatasAsync(getDataType));
         }
 
+
+
         /// <summary>
         /// 读取数据
         /// </summary>
         /// <returns>从设备读取的数据</returns>
-        public async Task<Dictionary<string,ReturnUnit>> GetDatasAsync()
+        public async Task<Dictionary<string,ReturnUnit>> GetDatasAsync(MachineGetDataType getDataType)
         {
             try
             {
@@ -164,8 +181,28 @@ namespace Modbus.Net
                                 p => p.Area == communicateAddress.Area && p.Address == pos + communicateAddress.Address);
                         if (address != null)
                         {
+                            string key;
+                            switch (getDataType)
+                            {
+                                case MachineGetDataType.CommunicationTag:
+                                    {
+                                        key = address.CommunicationTag;
+                                        break;
+                                    }
+                                case MachineGetDataType.Address:
+                                    {
+                                        key = AddressFormater.FormatAddress(address.Area, address.Address);
+                                        break;
+                                    }
+                                default:
+                                    {
+                                        key = address.CommunicationTag;
+                                        break;
+                                    }
+                            }
+                            
                             //将获取的数据和对应的通讯标识对应
-                            ans.Add(address.CommunicationTag,
+                            ans.Add(key,
                                 new ReturnUnit
                                 {
                                     PlcValue =
diff --git a/Modbus.Net/Modbus.Net/TaskManager.cs b/Modbus.Net/Modbus.Net/TaskManager.cs
index 2ff3103..5bccfc3 100644
--- a/Modbus.Net/Modbus.Net/TaskManager.cs
+++ b/Modbus.Net/Modbus.Net/TaskManager.cs
@@ -279,6 +279,8 @@ namespace Modbus.Net
             }
         }
 
+        public MachineGetDataType GetDataType { get; set; }
+
         /*public int MaxRunningTasks
         {
             get { return _scheduler.MaximumConcurrencyLevel; }
@@ -295,13 +297,14 @@ namespace Modbus.Net
         /// <param name="maxRunningTask">同时可以运行的任务数</param>
         /// <param name="getCycle">读取数据的时间间隔（秒）</param>
         /// <param name="keepConnect">读取数据后是否保持连接</param>
-        public TaskManager(/*int maxRunningTask,*/ int getCycle, bool keepConnect)
+        public TaskManager(/*int maxRunningTask,*/ int getCycle, bool keepConnect, MachineGetDataType getDataType = MachineGetDataType.CommunicationTag)
         {
             //_scheduler = new LimitedConcurrencyLevelTaskScheduler(maxRunningTask);
             _machines = new HashSet<BaseMachine>(new BaseMachineEqualityComparer());
             _unlinkedMachines = new HashSet<BaseMachine>(new BaseMachineEqualityComparer());
             _getCycle = getCycle;
             KeepConnect = keepConnect;
+            GetDataType = getDataType;
         }
 
         /// <summary>
@@ -556,7 +559,7 @@ namespace Modbus.Net
                 //超时后取消任务
                 cts.CancelAfter(TimeSpan.FromSeconds(_getCycle));
                 //读取数据
-                var ans = await machine.GetDatasAsync().WithCancellation(cts.Token);
+                var ans = await machine.GetDatasAsync(GetDataType).WithCancellation(cts.Token);
                 if (!machine.IsConnected)
                 {
                     MoveMachineToUnlinked(machine.Id);