diff --git a/Aucma.Core.CodeBinding/ViewModels/IndexPageViewModel.cs b/Aucma.Core.CodeBinding/ViewModels/IndexPageViewModel.cs
index 45ef2052..60c8605f 100644
--- a/Aucma.Core.CodeBinding/ViewModels/IndexPageViewModel.cs
+++ b/Aucma.Core.CodeBinding/ViewModels/IndexPageViewModel.cs
@@ -42,7 +42,10 @@ namespace Aucma.Core.CodeBinding.ViewModels
         private readonly ICodeBindingRecordServices? _codeBindingRecordServices;
         private readonly IBaseMaterialInfoServices? _baseMaterialInfoServices;
         private readonly IBaseBomInfoServices? _baseBomInfoServices;
+        // 静态变量存code1
         private static string code1Str = string.Empty;
+        // 定时检测数据库有没有pad绑定未放行的数据
+        System.Timers.Timer timer = new System.Timers.Timer(1000);
         public IndexPageViewModel()
         {
             _codeBindingRecordServices = App.ServiceProvider.GetService<ICodeBindingRecordServices>();
@@ -50,9 +53,46 @@ namespace Aucma.Core.CodeBinding.ViewModels
             _baseMaterialInfoServices = App.ServiceProvider.GetService<IBaseMaterialInfoServices>();
             MvCodeHelper.ReceiveCode1Event += receiveCode1;
             MvCodeHelper.ReceiveCode2Event += receiveCode2;
-            //receiveCode2("B23000000824");
+       //     pda手持检测plc放行定时器
+       //     StartPlcTimer();
             LoadData();
+            //receiveCode2("B23000000824");
+        }
+
+        /// <summary>
+        /// 开启定时器定时读取数据库并下发plc放行信号
+        /// </summary>
+        private void StartPlcTimer()
+        {
+            if (!timer.Enabled)
+            {
+                timer.Elapsed += new System.Timers.ElapsedEventHandler(readDataSendPlc);
+                timer.AutoReset = true;
+                timer.Enabled = false;
+                timer.Start();
+            }
+
         }
+        /// <summary>
+        /// 定时读取plc扫码信号，放行完成反馈信号
+        /// </summary>
+        private async void readDataSendPlc(object source, System.Timers.ElapsedEventArgs e)
+        {
+            List<CodeBindingRecord> records =await  _codeBindingRecordServices.QueryAsync(x => x.isPlcPass == 1 && x.RecordTime2 >= System.DateTime.Now.AddDays(-1), "RECORD_TIME2 desc");
+            if (records != null && records.Count>0)
+            {
+                CodeBindingRecord record = records[0];
+                // 下发plc放行信号
+                if (SendPlcPass())
+                {
+                    record.isPlcPass = 2;
+                   await _codeBindingRecordServices.UpdateAsync(record);
+                }
+
+            }
+
+        }
+
         #region 加载DataGrid数据
         private async void LoadData()
         {
@@ -75,8 +115,7 @@ namespace Aucma.Core.CodeBinding.ViewModels
                     });
 
                 }
-            }
-          
+            }         
         }
         // 修改为统计近一天
         private async void LoadCharts()