against unauthorized write access [...] Access [...] to ensure access

before the first writing access [...] against unauthorized writing accesses with a admin

against unauthorized writing access [...] password. Write access

) and Access Control tab (access rights [...] : Properties ) Safety Access

and the developer does not access it by writing. The control [...] as soon as a writing

POU.iVar1 . Access Type of access to the variable [...] : Declaration / Read / Write