Access PLC Variables on Datalayer with TIGER / IDE

I am trying to read/write a global variable of a PLC program which is published on the datalayer. My program does not seem to be able to access the variable written on the datalayer. Is there some examples of writing/reading to Datalayer I can access? Or a How to for it? (I cannot find any myself)

Or is it an issue of not being able to read/write booleans?

Edit: I have managed to narrow down the issue a bit, reading anything from the datalayer seems to work just fine. However writing to the datalayer seems to still be an issue, no matter what type of variable I try to write. Even directly writing what is being read does not seem to work, and keeps sending the DL_Type_Mismatch error.

uiState is a UInt16. does that cause an issue?

Thank you

Best reply by CodeShepherd

There are different possibilities how to read an write variables:

You can use the Data Layer base functions:
IDE visual read/write

Note at the moment there ar problems with the standard write path. We are investigating this.
You can use the IPC extension for PLC variables:
IPC extension read/write

See our online documentation for further information.

IDE App, Integrated Development Environment, Application Manual --> Visual Coding --> Project settings --> Extension configuration and initialization --> IPC (Inter Process Communication) extension

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IDE

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