Hello

I do use TIA v15.1 WinCC advanced. How could i change a value of the tag in the script? My code looks like that: 

Hi Rturas,

Might be the a problem related to your tag using tag prefix.

Take a look at: https://support.industry.siemens.com/tf//ww/en/posts/access-to-tag-from-vbs/166704?page=0&pageSize=10 

Thanks,

AutoGen_6779641

Hi Rturas,

Might be the a problem related to your tag using tag prefix.

Take a look at: https://support.industry.siemens.com/tf//ww/en/posts/access-to-tag-from-vbs/166704?page=0&pageSize=10 

Thanks,

Hi AutoGen_6779641

Unfortunately i  do get error, that referenced object does not exists if i try "@NOTP::VVK550_int" at button click event. Unless i did not understand correctly what was mentioned in that post.

I have found this older post of Murof (all credits go to him): 

Murof

Hello

I have done such a similar thing already.

You are right you cannot use the Tag name as a string  in the parameters because the system always use this string as an Tag Object.

But you can do a little trick. Use a signal character in the parameters and delete it in the Code.

for examle the Tagname is  "Tagname"

then use "_Tagname" for example as parameter.

In the Script use the vb functions to delete the _ in the String .

then you can use the result in a SmartTags expression.

Its not a smart solution but it should work and the system gives you no other chance than this

Bye Murof

 and followed his experience. The solution is not the best in the world, but at least i have got the desired result. I believe Siemens needs to get a closer look into this matter.