Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 868)

L-force | PLC Designer
Device Editors
866 DMS 4.1 EN 03/2011 TD29
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Restrictions
• Only channels which have got mapped on a variable in the I/O Mapping dialog (i.e.,
a variable must be defined in the "Variable" column, no matter whether it is a new
one or an existing one) can be forced by the above described implicit variables.
• Unused inputs / Outputs as well as such which are mapped via AT-declaration in an
application program cannot be forced.
• The respective I/O channels must be used in at least one task.
• Forced I/Os are not indicated in the monitoring (watch view, I/O mapping dialog
etc. The value is only used implicitly in the IO driver for writing onto the device
• Forced inputs are displayed correctly by the red force symbol , not however
forced in-/outputs.
Users and Groups
For devices supporting an "online user management", this dialog is provided on a tab
of the Device dialog (Device Editor). It allows for setting up user accounts and user
groups, which in combination with the Access Rights management serves to control
the access on objects on the PLC in online mode.
Common
It might be desired that certain functions of a controller can only be executed by
authorized users. For this purpose the "online user management" feature provides the
possibility to set up user accounts, to assign access rights for user groups and to force
an user authentication at login.
The device specific user management might be pre-defined by the device description
and it also depends on this description to what extent the definitions can be edited in
the configuration dialogs in the programming system.
Like in the project user management users have to be members of groups and only
user groups can get certain access rights.