Sub TDS_TimeOfDayCalcPLC (VarName)
'This function calculates actual Time of the day from PLC-var TimeOfDay
'Varname: VarName with number of miliseconds since 00:00:00.000 (from PLC)
' The Name of the calling name must be equal to the VarName
'
'v 15.02.11 TDS/M.Schill
Dim sTime
Dim sHours
Dim sMinutes
Dim sSeconds
Dim i
i = HMIRuntime.Tags(VarName).Read \ 1000 'Trunc miliseconds
sHours = i \ 3600 'Hours
i = i - sHours * 3600
sMinutes = i \ 60 'Minutes
sSeconds = i - sMinutes * 60
sTime = sHours & ":" & sMinutes & ":" & sSeconds
HMIRuntime.Screens("WinWorkspace").ScreenItems(VarName).OutputValue = sTime
End Sub
这是WINCC脚本中的TDS,请各位同仁共享,特别是sTime = sHours & ":" & sMinutes & ":" & sSeconds
HMIRuntime.Screens("WinWorkspace").ScreenItems(VarName).OutputValue = sTime
不知是什么意思??其sTime = sHours & ":" & sMinutes & ":" & sSeconds中的& ":" &不知怎么理解??
最佳答案
HMIRuntime.Screens("WinWorkspace").ScreenItems(VarName).OutputValue = sTime
不知是什么意思??
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这个是把变量sTime赋值给画面“WinWorkspace”里的控件（VarName表示的控件）的输出值
其sTime = sHours & ":" & sMinutes & ":" & sSeconds中的& ":" &不知怎么理解??
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&是字符串连接运算符，比如
sHours=11
sMinuter=22
sSeconds=33
那么sTime的值就是11：22：33
提问者对于答案的评价：
谢谢！
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