HEIDENHAIN iTNC 530 (340 49x-06) ISO programming - Manual (Page 623)

HEIDENHAIN iTNC 530 623
1
9.4 Netw
or
k Set
tings
Controlling access
Administrators have access to the TNC drives D, E and F. Please note
that some of the data in these partitions is binary encoded, and write-
accesses might lead to undefined behavior of the iTNC.
The user groups SYSTEM and Administrators have access rights to
the partitions D, E and F. The SYSTEM group ensures that the
Windows service that starts the control has access. The
Administrators group ensures that the real-time processor of the
iTNC receives a network connection via the iTNC Internal
Connection.
You may not restrict access by these groups, nor may you
add groups and prohibit certain accesses by these groups
(in Windows, access restrictions have priority over access
rights).