User`s guide

Operating the DX LCD Display 4-7
Point Data
The DX LCD Display stores up to eight separate display
configurations. Each configuration specifies up to 96 points of the
DX controller that can be displayed and monitored by the DX LCD
Display. The point data is shown on up to 8 pages (or screens) of
12 points per page. On power up, the display attempts to select a
display configuration to match the DX controller configuration. It uses
a default display configuration if it cannot find a match.
In the Point Data screens, you can:
• view the current value and alarm or override status of the points
• adjust or override the value of a point if the point is defined as
commandable.
• release an overridden point back to automatic control.
Notes: You must have a Level 1 or Level 2 password to adjust,
override, and release points.
The DX LCD Display issues commands and reads the status
of points in the same way as the DX front panel. If the
controller is connected to a supervisory system such as the
Metasys system, then the display, like the front panel, does
not show the correct status of an override of the digital
output modules unless the DX is configured to do so. For
more information, see the Supervisory Mode Control
Settings (General Module) section of the DX-9100
Configuration Guide (LIT-6364030).
Point Value
In the Point Data screens, adjust or override the value of a point if the
point is of the appropriate type (i.e., analog output, digital output, etc.)
and if the command function has been enabled for the point in the
display configuration.
Both the adjust and override commands change the value of a point.
They differ only in the way they are handled internally by the DX
controller.
The adjust command changes the value of a point whose values are not
set by the controller itself, i.e., which are not part of an automatic
control process. Once commanded, the point retains its value until it is
again commanded to a new value. Examples are setpoints,
programmable module constants, and analog alarm limits.