C 1 Display Access; C 1.1 General Description - Display Access; C 1.2 Automatic Display Allocation; C 1.3 Call Up The Display Access - ABB Freelance 2000 Manual

Section C

C 1 Display Access

C 1.1 General description - display access

The display access is a convenient means of quickly calling up the displays assigned to the
selected tag during process operation, thus obtaining selective information on the plant status.
Having selected a tag in DigiVis, the display selection dialog keys assigned to the tag are also
highlighted via the display selection dialog, apart from the selection fields for general displays
such as overview display, message list and system display. These display selection keys enable
one to call a faceplate (Tag), group display (Group), graphic display (Graphic), trend display
(Trend), time scheduler operator display (TS), sequential function chart display (SFC), signal
sequence log (SSL), disturbance course log (DCL) and operation log (OPL).
The Display access supplies data to the DigiVis display selection dialog, see Operators Manual,
Operator Station, Operating Philosophy.

C 1.2 Automatic display allocation

To a certain extent, display allocations can be specified automatically by the system. This
serves to reduce the effort for configuration.
When display allocation is called up, and when a plausibility check is carried out on an operator
station, the tags, displays and logs contained in the configuration database are checked. For
each tag, usage is established in the instances of all display types and log types.
When usage of a tag is discovered, the display or log is indicated as an entry for the display
allocation. If no usage and no cross reference is found, this is indicated by the entry "<unde-
fined>".

C 1.3 Call up the display access

After selecting a D-OS resource (station or pool) in the project tree, the displays / logs stored
there can be assigned to a tag.
If the general display pool is selected, the chosen display access applies for all operator
stations of the project. However, if the display access is chosen at a later date for an op-
erator station resource, the settings previously defined in the pool are overwritten for this
resource.
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Standard Displays
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