U_4046ad44-fd8f-4418-8b18-787b41bf7e81

 

ro14

You are trying to access a tag called exactly bufferScreenNames[Index] which doesn't exist.

What you need is to concatenate the value of the variable, as following:

Tags("bufferScreenNames[" + Index + "]").Read();

 

 Hallo 

is indexing is also possible via HMItag variable not for screen BUT VISUALIZE variable in HMI ?

Thanks in advance 

Regards

 You can basically use any tag for indexing. If it isn't working for you show us your script so we can help you.

Hello AutoGen_4315105

There are diffferent ways of working with indexes:

- Array Tag, if you have an datatype fo type Array (of singel datatype or also UDT) from the PLC you can use addressmultiplexing with symbolic addressing. here you can use a numeric tag to do the multiplexing of the different array elements.

- dyanmic name building in Scripts. Like shown in the refered post you can see that you can build the tagname dynamically  as string in the Script and use the common Tag access. (But if you use this you need to reference the tag somewhere in the Project that it is created in the tag management)

- dynamic tagnames in Faceplates: here you can use dynamic tagnames in faceplate interface dynamization like a prefix or different. also here you can only access tags that are created in the Tag management.

- perhaps I forgot one ;-)

Bye Murof