This function in the 'Project' 'Check' menu searches for memory areas of IEC addresses which are referenced in more than one task. No distinction is made here between read and write access.
The output is for example:
%MB28 is referenced in the following tasks :
Task1 – PLC_PRG (6): %MB28 [read-only access]
Task2 – POU1.ACTION (1) %MB28 [write access]
Results are displayed in the message window.