In WinCC V7.0 SP3 WebNavigator Documentation, there is a VBS example of WaitForDocumentReady(ByRef PictureWindow)

This code can be found in C:\Program Files\Siemens\WinCC\aplib\ScriptLibStd\WebNavigatorStd.bmo:

Function IsWebNavigator()
On Error Resume Next
Err.Clear

Dimproject
Setproject = HMIRuntime.ActiveProject
IfErr.Number <>0 Then

'HMIRuntime.Trace "Running on WebNavigator" & vbLf
IsWebNavigator =True
Exit Function

End If

IsWebNavigator =False

EndFunction

Sub WaitForDocumentReady(ByrefPictureWindow)
On Error Resume Next
Err.Clear

Dimstate
state = PictureWindow.DocumentState
IfErr.Number = 0 Then

Dim scrivar
Set scrivar = CreateObject("SCRIVAR.SCRIvarCtrl.1")
Whilestate =1' Loading

'HMIRuntime.Trace "DocumentState = " & state
scrivar.Sleep100
state = PictureWindow.DocumentState

Wend

EndIf

EndSub

Using one of the above (IsWebNavigator or WaitForDocumentReady) however generates the following error on a WebClient (in IE and in WinCCViewerRT):

Variable Not Defined: 'WaitForDocumentReady'

Variable Not Defined: 'IsWebNavigator'

We are using V7.0 SP3 Update 6 and we need everyhting in VBS, c-script is not allowed over here.

Any idea's?

Thank in advance.

Adding the same scripts as Global Scripts inside the project (with altered names) seems to work instead.

Altough the post is old, the issue still persists, so i'll tell you what ussually i use to solve it.

When i get that error 'Variable Not Defined' uppon using any function, it usually means that i'm dealing with an old WinCC BUG. I can't call it anything else.

As has been reported elsewhere in this forum, wincc doesn't always recognises all the functions a picture uses, and because of that it does not compile them along the picture. Usually, functions that are indirectly called by other functions are the problematic ones.

There is an (awfull) workaround that usually works that consists of:

1 - In every single module, you must create a dummy, empty, function just like:

2 - Then on each page you must include an object ("button" or anything else) and then, in one of its event, call all the dummy functions of the modules you know you need for that page to work.

call ModuleName1_DummyInclude()

call ModuleName2_DummyInclude()

...

This way WinCC will be forced to include the modules "in the picture".