diff --git a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.cpp b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.cpp
index 28249d5..ee3a800 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.cpp
+++ b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.cpp
@@ -2733,14 +2733,20 @@ usb_dev_handle* CSO7_Proto::_open_usb_dev(unsigned short sSeqNumber)
       {
         udev = usb_open(dev);
         usb_claim_interface(udev, 0);
-                
-        if(Get_SeqNumber(udev) != sSeqNumber)
-        {
-          usb_close(udev);
-        }
-        else
+        if (sSeqNumber>255)
         {
           return udev;
+        } 
+        else
+        {
+          if(Get_SeqNumber(udev) != sSeqNumber)
+          {
+            usb_close(udev);
+          }
+          else
+          {
+            return udev;
+          }
         }
       }
     }
@@ -2794,7 +2800,7 @@ SSI_STATUS_MOTION CSO7_Proto::Init_SO7Usb()
   usb_init();                       // initialize the library 
   usb_status = usb_find_busses();   // find all busses 
   usb_status = usb_find_devices();  // find all connected devices  
-  g_dev = _open_usb_dev(USB_SEQ_NUMBER);
+  g_dev = _open_usb_dev();
   if (!g_dev)
   {
     MessageBox(NULL, _T("Unable to open device"), _T("Message"), MB_OK|MB_ICONERROR);
diff --git a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.h b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.h
index 68361bb..daaff8e 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.h
+++ b/PcDmis/Base/Interfac/Msi/Hsi/SevenOcean/SO7_Proto.h
@@ -342,7 +342,7 @@ public:
 	SSI_STATUS_MOTION Init_SO7Usb();
 	SSI_STATUS_MOTION Exit_SO7Usb();
 
-	usb_dev_handle* _open_usb_dev(unsigned short sSeqNumber);
+	usb_dev_handle* _open_usb_dev(unsigned short sSeqNumber=256);
 	SSI_STATUS_MOTION _do_single_threaded_usb_comm(int iEP);
 
 	SSI_STATUS_MOTION _read_data_8x(int iEP_Base);
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 c70f4ee..0f7cf5c 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/Debug/UtilityDebug.Log
@@ -4384,3 +4384,15 @@ Unable to open device Init:Open device succeed .
 _start_machine
 Exit: Exit_SO7Usb 

 Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Init:Open device succeed .

+_start_machine
+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

+Construct Cso7_Proto.

+Init:Open device succeed .

+Exit: Exit_SO7Usb 

+Destruct Cso7_Proto.

diff --git a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Option.cpp b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Option.cpp
index 435282a..066bb69 100644
--- a/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Option.cpp
+++ b/PcDmis/Base/Interfac/Msi/Hsi/Tools/UsbUtility/UsbUtil/So7_Option.cpp
@@ -176,7 +176,7 @@ void CSo7_Option::OnBnClickedOk()
     {
       XBoxPlayer = new CXBOXController(1);
     }
-    
+
     CSO7_UtilDlg* pSO7_UtilDlg=new CSO7_UtilDlg();
     pSO7_UtilDlg->DoModal();	
     delete pSO7_UtilDlg;
@@ -312,7 +312,7 @@ void CSo7_Option::OnBnClickedOk()
     {
       m_pKeyence_Laser_LK_H=new CKeyence_Laser_LK_H();
     }
-    
+
     CKeyence_LKG5000_Ethernet* pKeyence_LKG5000_Ethernet=new CKeyence_LKG5000_Ethernet();
     pKeyence_LKG5000_Ethernet->DoModal();		
     delete pKeyence_LKG5000_Ethernet;
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 c989285..4d9a623 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