Hey,

I am working with TIA V17 Unified and tring to get the values of my Array of Bytes dynamically per script, but it doesn`t work:

let i = 13
let j = i.toString();
let tagname = "MyArray[" + j + "]";
test = Tags(tagname).Read();

This script is just a test to use it later in a for loop.

Thanks for your ideas.

Hi!

I think that for your case, you should check section 4.2.1 of the document included in the following link.

-SIMATIC WinCC Unifid - Tips and Tricks for Scripting (JavaScript)

https://support.industry.siemens.com/cs/ww/en/view/109758536

Br!

Maldito X

Hey,

I am working with TIA V17 Unified and tring to get the values of my Array of Bytes dynamically per script, but it doesn`t work:

let i = 13
let j = i.toString();
let tagname = "MyArray[" + j + "]";
test = Tags(tagname).Read();

This script is just a test to use it later in a for loop.

Thanks for your ideas.

Hey, thank you for replying that fast.

My problem is not to access an Array-element, the Problem is to get dynamicly acces to get access to a Array via "Tags('tagname')". I have to write in Tagname the exact name of my Variable it doesn't work with a variable.

Hi Maldito X,

when you dynamically change the tag name, are you using an HMI tag or trying to access a PLC tag? It should work with HMI tags but not with PLC tags.

Kind regards
Stefan

Hey Stefan,

i am trying to access the HMI-Tag, but the HMI-Tag is connected to a PLC-Tag.

Hey rdoliveira,

This is my HMI-Tag its a Array of Bytes from 0 to 63:  

Maldito X

Hey rdoliveira,

This is my HMI-Tag its a Array of Bytes from 0 to 63:  

let i = 13
let tagname = "MyArray[" + i + "]";
test = Tags(tagname).Read();

//doesn't work

test = Tags("MyArray[13]").Read();

//does work but its not dynamically

Do you have any errors during compilation or execution?

use RTILtraceViewer.exe for debug 

HMIRuntime.Trace("Trace Message");

Maldito X

Hey rdoliveira,

This is my HMI-Tag its a Array of Bytes from 0 to 63:  

let i = 13
let tagname = "MyArray[" + i + "]";
test = Tags(tagname).Read();

//doesn't work

test = Tags("MyArray[13]").Read();

//does work but its not dynamically

 Hello, do not put a variable for the name of the Tag, put it directly in the Tags with quotes" "