diff --git a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_BASE.H b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_BASE.H
index 43078f7..f0a9124 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_BASE.H
+++ b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_BASE.H
@@ -6,7 +6,7 @@
 
 
 #define MAX_OUTPUT_BUFFER_SIZE 2048
-#define MAX_RECIEVE_BUFFER_SIZE 16000
+#define MAX_RECIEVE_BUFFER_SIZE 30000
 
 // TCP, serial style routines
 struct SerialList
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.CPP b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.CPP
index 9d72f5a..a10b71e 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.CPP
+++ b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.CPP
@@ -55,9 +55,7 @@ CPSerial::CPSerial()
   m_RXTimeout = CS_DEFAULT_RX_TIMEOUT;
   m_TXTimeout = CS_DEFAULT_TX_TIMEOUT;
   m_iRecvState=FALSE;
-  m_csRecv=_T("");
-  m_iRecvByte=0;
-  m_iReadDataNum=255;
+  m_iRecvBytes=0;
   // Everything else set to NULL
   m_ThreadHandle = NULL;
   //m_TXHead = NULL;
@@ -482,33 +480,19 @@ void CPSerial::ReceiveTask( void )
 void CPSerial::OnReceive()
 {
   // Dummy OnReceieve if not used
-  char s[255]={0};
+  char s[MAX_RECIEVE_BUFFER_SIZE]={0};
 
-  CStringA csTemp;
   s[1]='\0';
   CurrentPointer = 0;
   int num=0;
+  num = ReadPort(s, MAX_RECIEVE_BUFFER_SIZE);
 
-   num = ReadPort(s, m_iReadDataNum);
-  //for (int i=0;i<num;i++)
-  //{
-	 // csTemp
-	 // m_csRecv+=csTemp;
-  //} 
-    
-  if (num!=0)	
+  if (num>0)	
   {
-    for (int i=0;i<255;i++)
-    {
-      m_RecvData[i]=0;
-    }
-    for (int i=0;i<num;i++)
-    {
-      m_RecvData[i]=s[i];
-    }
-    csTemp.Format("%s",m_RecvData);
-    m_csRecv=csTemp;
-    m_iRecvByte=num;
+    memset(m_RecvData,0,MAX_RECIEVE_BUFFER_SIZE);
+    memcpy(m_RecvData,s, num);
+    m_iRecvBytes=num;
+
     m_iRecvState=TRUE;
   }
 
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.H b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.H
index 784eeee..f015d98 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.H
+++ b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/CMMIO_SERIAL.H
@@ -185,10 +185,8 @@ public:
   // BV Nov 2001: Made public
   //	CRITICAL_SECTION m_QueueLock;
   BOOL m_iRecvState;
-  CString m_csRecv;
-  INT m_iRecvByte;
-  int m_iReadDataNum;
-  char m_RecvData[255];
+  INT m_iRecvBytes;
+  char m_RecvData[MAX_RECIEVE_BUFFER_SIZE];
 };
 
 #endif // CMMIO_SERIAL_H
\ No newline at end of file
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log
index 0204813..04615b0 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log
@@ -1481,3 +1481,23 @@ Construct Cso7_Proto.
 Destruct Cso7_Proto.

 Construct Cso7_Proto.

 Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/SO7_Automatic_Zoom.cpp b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/SO7_Automatic_Zoom.cpp
index 5bb6f35..d462237 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/SO7_Automatic_Zoom.cpp
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/SO7_Automatic_Zoom.cpp
@@ -542,17 +542,14 @@ double CSO7_Automatic_Zoom::ReadZoomAngle()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {    
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
       Sleep(50);
 
-    USES_CONVERSION;	
-    char *cRecvData= NULL;
     char *token = NULL;
     char   cTemp[20]={0};
-    cRecvData=T2A(m_pSO7_PCDSerial->m_csRecv);
     char  seps[]  = "$AD:";
 
-    token = strtok(cRecvData,seps);
+    token = strtok(m_pSO7_PCDSerial->m_RecvData,seps);
     if (token)
     {
       memcpy(cTemp,token,8);
@@ -566,8 +563,7 @@ double CSO7_Automatic_Zoom::ReadZoomAngle()
       dZoomAngle=-1;
     };
     token=NULL;
-    cRecvData=NULL;				
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
 
     return dZoomAngle;
@@ -585,10 +581,11 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
   char sendDataII[6]={'S','C',':','1',13,10};
   char sendDataIII[6]={'R','F',':','1',13,10};
   CString csRightRecv;
+  CStringA m_csRecv("");
   csRightRecv.Format(_T("@OK\r\n"));
   INT iRetrys(0);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
+  
   m_pSO7_PCDSerial->m_iRecvState=FALSE;
 
   //Phase I
@@ -601,12 +598,13 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
 
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
       Sleep(100);
 
-    if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
+    m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+    if((CString)m_csRecv==csRightRecv)
     {
-      m_pSO7_PCDSerial->m_csRecv=_T("");
+      
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       iRetrys=0;
       iWriteByte=0;
@@ -620,12 +618,13 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
       }
       if(m_pSO7_PCDSerial->m_iRecvState)
       {
-        if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+        if(m_pSO7_PCDSerial->m_RecvData[0]==0)
           Sleep(100);
 
-        if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
+        m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+        if((CString)m_csRecv==csRightRecv)
         {
-          m_pSO7_PCDSerial->m_csRecv=_T("");
+          
           m_pSO7_PCDSerial->m_iRecvState=FALSE;
           iRetrys=0;
           iWriteByte=0;
@@ -639,12 +638,13 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
           }
           if(m_pSO7_PCDSerial->m_iRecvState)
           {
-            if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+            if(m_pSO7_PCDSerial->m_RecvData[0]==0)
               Sleep(100);
 
-            if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
+            m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+            if((CString)m_csRecv==csRightRecv)
             {
-              m_pSO7_PCDSerial->m_csRecv=_T("");
+              
               m_pSO7_PCDSerial->m_iRecvState=FALSE;
               iRetrys=0;
               iWriteByte=0;
@@ -652,7 +652,7 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
             }
             else
             {
-              m_pSO7_PCDSerial->m_csRecv=_T("");
+              
               m_pSO7_PCDSerial->m_iRecvState=FALSE;
               return FALSE;
             }
@@ -664,7 +664,7 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
         }
         else
         {
-          m_pSO7_PCDSerial->m_csRecv=_T("");
+          
           m_pSO7_PCDSerial->m_iRecvState=FALSE;
           return FALSE;
         }
@@ -677,7 +677,7 @@ BOOL CSO7_Automatic_Zoom::CalibrateEncoder()
     }
     else
     {
-      m_pSO7_PCDSerial->m_csRecv=_T("");
+      
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       return FALSE;
     }
@@ -749,7 +749,7 @@ void CSO7_Automatic_Zoom::OnBnClickedButtonSendData()
   UpdateData(TRUE);
   CString csSendData("");
   GetDlgItem(IDC_EDIT_DATASEND)->GetWindowText(csSendData);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
+  
   USES_CONVERSION;	
   //加上回车换行符
   CString csTemp;
@@ -766,6 +766,7 @@ void CSO7_Automatic_Zoom::OnBnClickedButtonSendData()
   csSendData.Format(_T("Send(%dByte)"),iWriteByte);
   m_StatusBar.SetText(csSendData, 1, 0);
   //接受数据
+  CStringA m_csRecv("");
   INT iRetrys(0);
   while(!m_pSO7_PCDSerial->m_iRecvState && iRetrys<20)
   {
@@ -774,7 +775,7 @@ void CSO7_Automatic_Zoom::OnBnClickedButtonSendData()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -783,16 +784,16 @@ void CSO7_Automatic_Zoom::OnBnClickedButtonSendData()
         iRetrys2++;
         Sleep(100);
       }
-      ((CListBox *)GetDlgItem(IDC_LIST_SHOWMESSAGE))->InsertString(-1,CString(_T("[Recv]: "))+m_pSO7_PCDSerial->m_csRecv);
-      m_pSO7_PCDSerial->m_csRecv=_T("");
-      csSendData.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+      m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+      ((CListBox *)GetDlgItem(IDC_LIST_SHOWMESSAGE))->InsertString(-1,CString(_T("[Recv]: "))+(CString)m_csRecv);
+      csSendData.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
       m_StatusBar.SetText(csSendData, 2, 0);
     }
     else
     {
-      ((CListBox *)GetDlgItem(IDC_LIST_SHOWMESSAGE))->InsertString(-1,CString(_T("[Recv]: "))+m_pSO7_PCDSerial->m_csRecv);
-      m_pSO7_PCDSerial->m_csRecv=_T("");
-      csSendData.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+      m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+      ((CListBox *)GetDlgItem(IDC_LIST_SHOWMESSAGE))->InsertString(-1,CString(_T("[Recv]: "))+(CString)m_csRecv);
+      csSendData.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
       m_StatusBar.SetText(csSendData, 2, 0);
 
     }
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/Setup_so7config.cpp b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/Setup_so7config.cpp
index 12c3f97..aff7d82 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/Setup_so7config.cpp
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/Setup_so7config.cpp
@@ -399,18 +399,15 @@ double CSetup_so7config::ReadZoomAngle()
     }
     if (m_pSO7_PCDSerial->m_iRecvState)
     {
-      if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+      if(m_pSO7_PCDSerial->m_RecvData[0]==0)
         Sleep(40);//200
 
-      char *cRecvData= NULL;
       char *token = NULL;
       char   cTemp[20]={0};
-      USES_CONVERSION;	
-      cRecvData=T2A(m_pSO7_PCDSerial->m_csRecv);
 
       char  seps[]  = "$AD:";
 
-      token = strtok(cRecvData,seps);
+      token = strtok(m_pSO7_PCDSerial->m_RecvData,seps);
       if (token)
       {
         memcpy(cTemp,token,8);
@@ -418,8 +415,6 @@ double CSetup_so7config::ReadZoomAngle()
         dZoomAngle=dZoomAngle*180/PI;
       };
       token=NULL;
-      cRecvData=NULL;				
-      m_pSO7_PCDSerial->m_csRecv=_T("");
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       _bReading=false;
       return dZoomAngle;
@@ -482,9 +477,10 @@ BOOL CSetup_so7config::CalibrateEncoder()
   char sendDataIII[6]={'R','F',':','1',13,10};
   CString csRightRecv;
   csRightRecv.Format(_T("@OK\r\n"));
+  CStringA m_csRecv("");
   INT iRetrys(0);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
+  
   m_pSO7_PCDSerial->m_iRecvState=FALSE;
 
   //Phase I
@@ -497,12 +493,12 @@ BOOL CSetup_so7config::CalibrateEncoder()
 
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
       Sleep(100);
-
-    if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
+    m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+    if((CString)m_csRecv==csRightRecv)
     {
-      m_pSO7_PCDSerial->m_csRecv=_T("");
+      
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       iRetrys=0;
       iWriteByte=0;
@@ -512,16 +508,16 @@ BOOL CSetup_so7config::CalibrateEncoder()
       while(!m_pSO7_PCDSerial->m_iRecvState && iRetrys<20 && iWriteByte==6)
       {
         iRetrys++;
-        Sleep(50);
+        Sleep(100);
       }
       if(m_pSO7_PCDSerial->m_iRecvState)
       {
-        if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+        if(m_pSO7_PCDSerial->m_RecvData[0]==0)
           Sleep(100);
 
-        if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
-        {
-          m_pSO7_PCDSerial->m_csRecv=_T("");
+        m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+        if((CString)m_csRecv==csRightRecv)
+        {          
           m_pSO7_PCDSerial->m_iRecvState=FALSE;
           iRetrys=0;
           iWriteByte=0;
@@ -531,24 +527,23 @@ BOOL CSetup_so7config::CalibrateEncoder()
           while(!m_pSO7_PCDSerial->m_iRecvState && iRetrys<20 && iWriteByte==6)
           {
             iRetrys++;
-            Sleep(50);
+            Sleep(100);
           }
           if(m_pSO7_PCDSerial->m_iRecvState)
           {
-            if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+            if(m_pSO7_PCDSerial->m_RecvData[0]==0)
               Sleep(100);
 
-            if(m_pSO7_PCDSerial->m_csRecv==csRightRecv)
-            {
-              m_pSO7_PCDSerial->m_csRecv=_T("");
+            m_csRecv.Format(("%s"),m_pSO7_PCDSerial->m_RecvData);
+            if((CString)m_csRecv==csRightRecv)
+            {              
               m_pSO7_PCDSerial->m_iRecvState=FALSE;
               iRetrys=0;
               iWriteByte=0;
               return TRUE;
             }
             else
-            {
-              m_pSO7_PCDSerial->m_csRecv=_T("");
+            {              
               m_pSO7_PCDSerial->m_iRecvState=FALSE;
               return FALSE;
             }
@@ -560,7 +555,7 @@ BOOL CSetup_so7config::CalibrateEncoder()
         }
         else
         {
-          m_pSO7_PCDSerial->m_csRecv=_T("");
+          
           m_pSO7_PCDSerial->m_iRecvState=FALSE;
           return FALSE;
         }
@@ -573,7 +568,7 @@ BOOL CSetup_so7config::CalibrateEncoder()
     }
     else
     {
-      m_pSO7_PCDSerial->m_csRecv=_T("");
+      
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       return FALSE;
     }
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Manual_Machine.cpp b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Manual_Machine.cpp
index 9d88bab..8e015d0 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Manual_Machine.cpp
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Manual_Machine.cpp
@@ -202,8 +202,7 @@ void CSo7_Manual_Machine::OnBnClickedButtonSo7ManualMachineSendData()
 
   DWORD iSendDataLength(0);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_iReadDataNum=255;
-  m_pSO7_PCDSerial->m_csRecv=_T("");
+  
   if (m_SendType==HEXADECIMAL)
   {
     char* stop;
@@ -239,7 +238,7 @@ void CSo7_Manual_Machine::OnBnClickedButtonSo7ManualMachineSendData()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -249,28 +248,28 @@ void CSo7_Manual_Machine::OnBnClickedButtonSo7ManualMachineSendData()
         Sleep(100);
       } 
       m_OutMessage=_T("[Recv]");
-      for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvByte;i++)
+      for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvBytes;i++)
       {
         csTemp.Format(_T("%X "),(BYTE)m_pSO7_PCDSerial->m_RecvData[i]);
         m_OutMessage+=csTemp;
       }
       OutputWithScroll(m_OutMessage,m_edMSG);      
-      m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+      m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
       m_StatusBar.SetText(m_OutMessage, 2, 0);
     }
     else
     {
       m_OutMessage=_T("[Recv]");
-      for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvByte;i++)
+      for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvBytes;i++)
       {
         csTemp.Format(_T("%X "),(BYTE)m_pSO7_PCDSerial->m_RecvData[i]);
         m_OutMessage+=csTemp;
       }
       OutputWithScroll(m_OutMessage,m_edMSG);      
-      m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+      m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
       m_StatusBar.SetText(m_OutMessage, 2, 0);
     }
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
   }
   else
@@ -283,7 +282,6 @@ void CSo7_Manual_Machine::OnBnClickedCheckSo7ManualMachineReadPosContinue()
 {
   if (!((CButton*)(GetDlgItem(IDC_CHECK_SO7_MANUAL_MACHINE_READ_POS_CONTINUE)))->GetCheck())
   {
-    m_pSO7_PCDSerial->m_iReadDataNum=255;
     KillTimer(1);
   }
 }
@@ -296,7 +294,6 @@ void CSo7_Manual_Machine::OnBnClickedButtonSo7ManualMachinereadPos()
   UpdatePosDisplay();
   if (((CButton*)(GetDlgItem(IDC_CHECK_SO7_MANUAL_MACHINE_READ_POS_CONTINUE)))->GetCheck())
   {
-    m_pSO7_PCDSerial->m_iReadDataNum=255;
     SetTimer(1,200,NULL);
   }
   else
@@ -309,8 +306,7 @@ BOOL   CSo7_Manual_Machine::_Send_Common_CMD(const char* _SendData,DWORD _SendDa
 {
   BOOL rStatus(FALSE);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
-  m_pSO7_PCDSerial->m_iReadDataNum=255;
+  
   iWriteByte=m_pSO7_PCDSerial->Send(_SendData,_SendDataLength);
   m_OutMessage.Format(_T("Send(%dByte)"),iWriteByte);
   m_StatusBar.SetText(m_OutMessage, 1, 0);
@@ -324,7 +320,7 @@ BOOL   CSo7_Manual_Machine::_Send_Common_CMD(const char* _SendData,DWORD _SendDa
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -334,10 +330,10 @@ BOOL   CSo7_Manual_Machine::_Send_Common_CMD(const char* _SendData,DWORD _SendDa
         Sleep(100);
       } 
     }
-    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
     m_StatusBar.SetText(m_OutMessage, 2, 0);
 
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
     rStatus=TRUE;
   }
@@ -369,8 +365,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionX()
   BYTE bSendData[2]={0xF4,0x0D};
   DWORD iSendDataLength(2);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
-  m_pSO7_PCDSerial->m_iReadDataNum=255;
+  
   iWriteByte=m_pSO7_PCDSerial->Send((const char*)bSendData,iSendDataLength);
   m_OutMessage.Format(_T("Send(%dByte)"),iWriteByte);
   m_StatusBar.SetText(m_OutMessage, 1, 0);
@@ -384,7 +379,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionX()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -396,10 +391,10 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionX()
     }
     m_pSO7_Proto->g_machine.x._d_cur_pos_=HEXDataToIntScalePosX(&m_pSO7_PCDSerial->m_RecvData[2]); 
      m_pSO7_Proto->g_machine.x._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.x_axis._scale_resolution;
-    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
     m_StatusBar.SetText(m_OutMessage, 2, 0);
 
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
   }
   else
@@ -413,8 +408,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionY()
   BYTE bSendData[2]={0xF5,0x0D};
   DWORD iSendDataLength(2);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
-  m_pSO7_PCDSerial->m_iReadDataNum=255;
+  
   iWriteByte=m_pSO7_PCDSerial->Send((const char*)bSendData,iSendDataLength);
   m_OutMessage.Format(_T("Send(%dByte)"),iWriteByte);
   m_StatusBar.SetText(m_OutMessage, 1, 0);
@@ -428,7 +422,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionY()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -440,10 +434,10 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionY()
     }
     m_pSO7_Proto->g_machine.y._d_cur_pos_=HEXDataToIntScalePosY(&m_pSO7_PCDSerial->m_RecvData[2]); 
      m_pSO7_Proto->g_machine.y._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.y_axis._scale_resolution;
-    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
     m_StatusBar.SetText(m_OutMessage, 2, 0);
 
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
   }
   else
@@ -457,8 +451,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionZ()
   BYTE bSendData[2]={0xF6,0x0D};
   DWORD iSendDataLength(2);
   DWORD iWriteByte(0);
-  m_pSO7_PCDSerial->m_csRecv=_T("");
-  m_pSO7_PCDSerial->m_iReadDataNum=255;
+  
   iWriteByte=m_pSO7_PCDSerial->Send((const char*)bSendData,iSendDataLength);
   m_OutMessage.Format(_T("Send(%dByte)"),iWriteByte);
   m_StatusBar.SetText(m_OutMessage, 1, 0);
@@ -472,7 +465,7 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionZ()
   }
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -484,10 +477,10 @@ void   CSo7_Manual_Machine::_Send_CMD_ReadPositionZ()
     }
     m_pSO7_Proto->g_machine.z._d_cur_pos_=HEXDataToIntScalePosZ(&m_pSO7_PCDSerial->m_RecvData[2]); 
      m_pSO7_Proto->g_machine.z._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.z_axis._scale_resolution;
-    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
     m_StatusBar.SetText(m_OutMessage, 2, 0);
 
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
   }
   else
@@ -501,7 +494,7 @@ void   CSo7_Manual_Machine::_Process_RecvData()
   CString csTemp;
   if (m_pSO7_PCDSerial->m_iRecvState)
   {
-    if(m_pSO7_PCDSerial->m_csRecv==_T(""))
+    if(m_pSO7_PCDSerial->m_RecvData[0]==0)
     {
       m_pSO7_PCDSerial->m_iRecvState=FALSE;
       INT iRetrys2(0);
@@ -512,18 +505,18 @@ void   CSo7_Manual_Machine::_Process_RecvData()
       } 
     }
     //m_OutMessage=_T("[Recv]");
-    //for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvByte;i++)
+    //for (INT i=0;i<m_pSO7_PCDSerial->m_iRecvBytes;i++)
     //{
     //  csTemp.Format(_T("%X "),(BYTE)m_pSO7_PCDSerial->m_RecvData[i]);
     //  m_OutMessage+=csTemp;
     //}
     //OutputWithScroll(m_OutMessage,m_edMSG);   
     int i=0;
-    while(i<m_pSO7_PCDSerial->m_iRecvByte)
+    while(i<m_pSO7_PCDSerial->m_iRecvBytes)
     {
       if ((BYTE)m_pSO7_PCDSerial->m_RecvData[i]==0xF4)//x
       {
-        if ((m_pSO7_PCDSerial->m_iRecvByte-i)>=12)
+        if ((m_pSO7_PCDSerial->m_iRecvBytes-i)>=12)
         {
           m_pSO7_Proto->g_machine.x._d_cur_pos_=HEXDataToIntScalePosX(&m_pSO7_PCDSerial->m_RecvData[i+1]);
           m_pSO7_Proto->g_machine.x._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.x_axis._scale_resolution;
@@ -533,7 +526,7 @@ void   CSo7_Manual_Machine::_Process_RecvData()
       } 
       else if ((BYTE)m_pSO7_PCDSerial->m_RecvData[i]==0xF5)//y
       {
-        if ((m_pSO7_PCDSerial->m_iRecvByte-i)>=12)
+        if ((m_pSO7_PCDSerial->m_iRecvBytes-i)>=12)
         {
           m_pSO7_Proto->g_machine.y._d_cur_pos_=HEXDataToIntScalePosY(&m_pSO7_PCDSerial->m_RecvData[i+1]); 
           m_pSO7_Proto->g_machine.y._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.y_axis._scale_resolution;
@@ -542,7 +535,7 @@ void   CSo7_Manual_Machine::_Process_RecvData()
       }
       else if ((BYTE)m_pSO7_PCDSerial->m_RecvData[i]==0xF6)//z
       {
-        if ((m_pSO7_PCDSerial->m_iRecvByte-i)>=12)
+        if ((m_pSO7_PCDSerial->m_iRecvBytes-i)>=12)
         {
           m_pSO7_Proto->g_machine.z._d_cur_pos_=HEXDataToIntScalePosZ(&m_pSO7_PCDSerial->m_RecvData[i+1]); 
           m_pSO7_Proto->g_machine.z._d_cur_pos_  *= m_pSO7_Proto->g_machine.s_machine_config.z_axis._scale_resolution;
@@ -555,10 +548,10 @@ void   CSo7_Manual_Machine::_Process_RecvData()
       }
     };
 
-    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvByte);
+    m_OutMessage.Format(_T("Recv(%dByte)"),m_pSO7_PCDSerial->m_iRecvBytes);
     m_StatusBar.SetText(m_OutMessage, 2, 0);
 
-    m_pSO7_PCDSerial->m_csRecv=_T("");
+    
     m_pSO7_PCDSerial->m_iRecvState=FALSE;
   }
   else
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil_VS2010.suo b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil_VS2010.suo
index 1b9fbf0..83b22ec 100644
Binary files a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil_VS2010.suo and b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil_VS2010.suo differ