diff --git a/MECF.Framework.RT.EquipmentLibrary/HardwareUnits/Aligners/HiWinAligner/HwAlignerGuide.cs b/MECF.Framework.RT.EquipmentLibrary/HardwareUnits/Aligners/HiWinAligner/HwAlignerGuide.cs
index 095cf08..561ee10 100644
--- a/MECF.Framework.RT.EquipmentLibrary/HardwareUnits/Aligners/HiWinAligner/HwAlignerGuide.cs
+++ b/MECF.Framework.RT.EquipmentLibrary/HardwareUnits/Aligners/HiWinAligner/HwAlignerGuide.cs
@@ -544,7 +544,7 @@ namespace MECF.Framework.RT.EquipmentLibrary.HardwareUnits.Aligners.HiWinAligner
             _iCurrentOper = (uint)CommandEnum.CCD;
         }
 
-        public bool ParseData(string name, byte[] buffer, out bool bResult)
+        internal bool ParseData(string name, byte[] buffer, out bool bResult)
         {
             bResult = true;
             var sAnswer = Encoding.ASCII.GetString(buffer);
@@ -569,7 +569,7 @@ namespace MECF.Framework.RT.EquipmentLibrary.HardwareUnits.Aligners.HiWinAligner
             return false;
         }
 
-        public bool CheckWaferDataA(string name, byte[] buffer, out bool bResult)
+        internal bool CheckWaferDataA(string name, byte[] buffer, out bool bResult)
         {
             bResult = true;
             var sAnswer = Encoding.ASCII.GetString(buffer.ToArray());