diff --git a/ViewModel/MainWindowViewModel.cs b/ViewModel/MainWindowViewModel.cs
index 6fb66ab..ff29e67 100644
--- a/ViewModel/MainWindowViewModel.cs
+++ b/ViewModel/MainWindowViewModel.cs
@@ -169,6 +169,10 @@ namespace DyeingComputer.ViewModel
         ushort DQ_L = 128;
         bool[] DO = new bool[128];
         ushort DO_L = 128;
+        int[] MW = new int[128];
+        ushort MW_L = 128;
+        ushort[] DW = new ushort[125];
+        ushort DW_L = 125;
         readonly byte slaveId = 1;
 
         private async void Modbus_link()
@@ -178,14 +182,9 @@ namespace DyeingComputer.ViewModel
                 master.Transport.ReadTimeout = 500;
                 master.Transport.WriteTimeout = 500;
 
-                //master.Transport.Retries = 100;
-                // write three registers
-
                 LINK_RUN++;
                 try
-                {
-                   
-
+                {     
                  //   ushort startAddress = 46001;
                 //    ushort[] registers = new ushort[] { 1, 2, 3 };
                  //   master.WriteMultipleRegisters(slaveId, startAddress, registers);
@@ -193,7 +192,9 @@ namespace DyeingComputer.ViewModel
                   
                     DO = master.ReadCoils(slaveId, 01000, DO_L);
                     DQ = master.ReadCoils(slaveId, 00000, DQ_L);
-                    LINK_OK=true;
+                    DW = master.ReadHoldingRegisters(slaveId,06000, DW_L);
+
+                    LINK_OK =true;
                 }
                 catch (Exception ex) 
                 {
@@ -228,8 +229,12 @@ namespace DyeingComputer.ViewModel
         {
             await Task.Run(() =>
             {
-                for (ushort i = 0; i < DO_L; i++) { updata_dtd((i + 2001).ToString(), DO[i]); }
-                for (ushort i = 0; i < DQ_L; i++) { updata_dtd((i + 3001).ToString(), DQ[i]); }
+                lock (dt_d)
+                {
+                    for (ushort i = 0; i < DO_L; i++) { updata_dtd((i + 2001).ToString(), DO[i]); }
+                    for (ushort i = 0; i < DQ_L; i++) { updata_dtd((i + 3001).ToString(), DQ[i]); }
+                    for (ushort i = 0; i < DW_L; i++) { updata_dta((i + 4001).ToString(), DW[i]); }
+                }
             });
 
             await Task.Run(() =>