我在wincc 6.2中编写了wincc vbs脚本程序，能够每日生成报表。但是我把项目移植到wincc 7.0.2后脚本没有运行，不能自动生成报表。脚本程序如下：

Function settag(tagname,tagvalue)
Dim a
Set a=HMIRuntime.Tags(tagname)
a.Write(tagvalue)
End Function


Function gettag(tagname)
Dim a
Set a=HMIRuntime.Tags(tagname)
a.read
gettag=a.Value

End Function

Function gettagreal(tagname)
Dim a
Set a=HMIRuntime.Tags(tagname)
a.read(1)
gettagreal=a.Value

End Function

Option Explicit
Function action
Dim objExcelApp,a
'MsgBox("begin")
a=gettag("date")
'MsgBox(a)

Set objExceLApp = CreateObject("Excel.Application")

objExcelApp.Visible = false

objExcelApp.Workbooks.Open "C:\DATAS\date.xlsx"

objExcelApp.ActiveWorkbook.SaveAs "C:\DATAHIS\"+a+".xlsx"


objExcelApp.ActiveWorkbook.Save

objExcelApp.ActiveWorkbook.close


objexcelapp.Quit

'settag "leijia",0
End Function
触发设置为时间有变化时，
我想问一下大家，如何在wincc 查看脚本有无运行。。如何进行调试