diff --git a/DM_Weight/ViewModels/DrawerTakeDrugWindowViewModel.cs b/DM_Weight/ViewModels/DrawerTakeDrugWindowViewModel.cs
index ed47f23..a85cb36 100644
--- a/DM_Weight/ViewModels/DrawerTakeDrugWindowViewModel.cs
+++ b/DM_Weight/ViewModels/DrawerTakeDrugWindowViewModel.cs
@@ -143,7 +143,7 @@ namespace DM_Weight.ViewModels
 
                     _portUtil.WindowName = "DrawerTakeDrugWindow";
                     _portUtil.BoardType = singleChannels.Count > 0 ? singleChannels[0].BoardType : 1;
-                    _portUtil.ColNos = singleChannels.Select(it => it.ColNo).ToArray();
+                    _portUtil.ColNos = singleChannels.Where(it => it.TakeQuantity > 0).Select(it => it.ColNo).ToArray();
                     _portUtil.DrawerNo = DrawerNo;
                     Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Normal, () => _portUtil.Start())
                     ;