Dim TcsObj As CSDN.TCS
Dim App As CSDN.Tcs_Application
Dim NMks As CSDN.Nomenclatures
Set TcsObj = CreateObject("CSDN.TCS")
Set App = TcsObj.Login
    
If App.NmkClasses.RunModuleForSelect("Выберите класс", False) Then
    Set NMks = App.Nomenclatures(App.NmkClasses.Properties("ID").AsInteger)
    
    ...
    Set NMks = Nothing
End If
Set App = Nothing
Set TcsObj = Nothing