diff --git a/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java b/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
index e044727..986a153 100644
--- a/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
+++ b/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
@@ -295,10 +295,11 @@ public class ModbusTcpServer {
         try {
             ReadHoldingRegistersResponse res = ModbusTcpHelper.get().syncReadHoldingRegisters(1, add, length);
             byte[] data = res.getData();
-
+            byte[] data1= Arrays.copyOfRange(data, 0, 36);
+            //36 GUID 18 Number
             String id="";
             try {
-                id = new String(data, "UTF-8");
+                id = new String(data1, "UTF-8").trim();
             } catch (UnsupportedEncodingException ex) {
             }
             if(callback!=null) callback.onSuccess(id);
@@ -314,6 +315,36 @@ public class ModbusTcpServer {
             MessageLog.ShowError("ReadShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
         }
     }
+
+    public void WriteString(String Address, int length, IWriteCallBack callback) {
+        int add = GetAddress(Address);
+        if (add < 0) return;
+        short[] send = new short[length];
+        for (short item:send)
+        {
+            item=0;
+        }
+        try {
+            ModbusTcpHelper.get().syncWriteRegisters(1, add, send);
+            if(callback!=null)
+                callback.onSuccess();
+        } catch (InterruptedException e) {
+            MessageLog.ShowError("WriteShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
+            if(callback!=null)callback.onFailure(e.toString());
+        } catch (ExecutionException e) {
+            MessageLog.ShowError("WriteShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
+            if(callback!=null)callback.onFailure(e.toString());
+        } catch (ModbusTransportException e) {
+            MessageLog.ShowError("WriteShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
+            if(callback!=null)callback.onFailure(e.toString());
+        } catch (ModbusInitException e) {
+            MessageLog.ShowError("WriteShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
+            if(callback!=null)callback.onFailure(e.toString());
+        } catch (ModbusRespException e) {
+            MessageLog.ShowError("WriteShort onFailure，Address=" + Address + ",length=" + length + ",msg:" + e.toString());
+            if(callback!=null)callback.onFailure(e.toString());
+        }
+    }
     public void ReadShort(String Address, int length, IReadCallBack<short[]> callback) {
         int add = GetAddress(Address);
         if (add < 0) return;
diff --git a/app/src/main/java/com/example/bpa/service/DeviceData.java b/app/src/main/java/com/example/bpa/service/DeviceData.java
index c728673..e850da6 100644
--- a/app/src/main/java/com/example/bpa/service/DeviceData.java
+++ b/app/src/main/java/com/example/bpa/service/DeviceData.java
@@ -120,14 +120,15 @@ public class DeviceData {
 
                 //读取当前扫码信息
                 ModbusTcpServer.get().ReadString("VW342", 20, (data) -> {
-                    MessageLog.ShowInfo("当前扫码信息:"+data);
+
                     if(!Code.equals(data))
                     {
-                        Code=data;
-                        if(OnScanTheCodeInformationT!=null)
+                        if(!data.isEmpty() && OnScanTheCodeInformationT!=null)
                         {
-                            OnScanTheCodeInformationT.Run(Code);
+                            MessageLog.ShowInfo("当前扫码信息:"+data);
+                            OnScanTheCodeInformationT.Run(data);
                         }
+                        Code=data;
                     }
                     //1.查询订单信息
                     //2.展示订单界面
@@ -875,5 +876,10 @@ public class DeviceData {
         ModbusTcpServer.get().WriteShort("VW254", value, callback);
     }
 
-
+    /**
+     * 扫码清零
+     */
+    public void setCodeClear(IWriteCallBack callback) {
+        ModbusTcpServer.get().WriteString("VW342", 20, callback);
+    }
 }
diff --git a/app/src/main/java/com/example/bpa/service/ScanCodeServer.java b/app/src/main/java/com/example/bpa/service/ScanCodeServer.java
index 53b81a3..5bf62ab 100644
--- a/app/src/main/java/com/example/bpa/service/ScanCodeServer.java
+++ b/app/src/main/java/com/example/bpa/service/ScanCodeServer.java
@@ -3,6 +3,7 @@ package com.example.bpa.service;
 import com.example.bpa.Model.IRun;
 import com.example.bpa.Model.IRunT;
 import com.example.bpa.Model.IThread;
+import com.example.bpa.Model.IWriteCallBack;
 import com.example.bpa.app.Main;
 import com.example.bpa.helper.MessageLog;
 import com.example.bpa.helper.ModbusTcpServer;
@@ -46,6 +47,15 @@ public class ScanCodeServer {
                 //4.回馈订单信息
                 Code=s;
                 Main.getInstance().GetOrder(Code);
+                DeviceData.Get().setCodeClear(new IWriteCallBack() {
+                    @Override
+                    public void onSuccess() {
+                    }
+                    @Override
+                    public void onFailure(String ErrorMsg) {
+                    }
+                });
+
             }
         };
     }