I migrated project from TIA PORTAL V11 to TIA PORTAL V13 SP1 UPD 2, and I have trouble accessing blocks with "Only store in load memory" attribute.

I am getting compiler error saying that block with this attribute cannot be used at given location, in spite of that it is in interface of function for writing blocks in load memory.

Additional info in attachment ...

Best regards.

Could you perhaps show us the properties of  the DB "Code0_499".
Is the attributes may be set to write protect?

What happens if you generate another DB with the same structure and attributes as DB "Code0_499" and replace that new DB in the place of the code call?

bosandzeros

Block attributes in attachment.

Generating new block and changing the code generates same error ...

Once again, in TIA V11 everything was working ok .

One of the experts would probably be more of help - I am guessing.
Try deactivating "optimised" and do a complete software reconstruction compile.

w

The help for READ_DBL tells you the DSBLK must be a data block in the work memory.

Looks like you wand to copy from a unlinked DB ins an other unlinked DB, and if you have to split this up and use a "transfer DB" that in in the work memory.