Hello Björn,
Symbolic variable names depend on twincat version.

For twincat 2.x you can use .<VAR_NAME> syntax, for 3.x you use <Task>.<VAR_NAME>. Given your example, for TC2 symbolic address on plc4x side will be .GVL and .GVL_TEST. For fresh twincats it will be Main.GVL and Main.GVL_Test (assuming you have such task in your PLC project).

Best,
Łukasz

On 24.05.2024 15:34, bjo...@coding-nexus.com wrote:
Hi,

Is someone able to provide me a small code example on how to query ADS
variable?

Say  I have a GVL called GVL_TEST how could I browse it or even read
GVL_TEST.test which would be a String(10).

My attempts to read it like I do read a Variable at the S7 are leading to
null…

Thank you very much!

Best regards and happy weekend

Björn

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