A method of accessing an element in a process control environment using a
portable communicator includes defining a plurality of control areas
within the process control environment, determining a position of a user
operating a portable communicator with respect to one or more of the
control areas, establishing an identity of the user, and selectively
allowing the user to access an element within the process control
environment via the portable communicator depending on the determined
position of the user with respect to the one or more control areas and on
the identity of the user.