I have wincc Flexible 2008 SP3 and want to add value of two tags into an internal tag

i write script as

Dim Tag1

Dim Tag2

Dim Tag5

Set Tag1 = HmiRuntime.SmartTags("Tag_1")

Tag1.Read

Set Tag2 = HmiRuntime.SmartTags("Tag_2")

Tag1.Read

Set Tag5 = HmiRuntime.SmartTags("Tag_5")

Tag5.Value = Tag1.Value + Tag2.Value

Tag5.Write

But don't know why sprit showing red error line under read and write of

Tag1.Read, Tag2.Read and Tag5.Write

And my Sprit is not working, as i runtime not start when i add script to start screen events

Hello Usman Abdullah,

tag.Read and tag.Write are used in WinCC VBScript, but not in WinCC flexible VBScript. There the following should work:

HmiRuntime.SmartTags("Tag_5") =  HmiRuntime.SmartTags("Tag_1") + HmiRuntime.SmartTags("Tag_2") 

Regards,

Frink