Installation Guide—DX LCD Display
7
During initialization, the display attempts to match the DX controller’s
configuration code with one of the eight display configuration codes
stored in the display unit. If it finds a match, the display uses the
corresponding display configuration. If it does not find a match, it uses
the default configuration if one has been defined. If the default
configuration feature is disabled, the display shows a “Configuration
not found” message.
Press the key to continue when the power-on self-test is complete.
If you do not press a key, the screen is cleared after a five-second delay.
The next screen that appears depends on whether you have connected
the display to a different DX controller or whether it is still connected
to the same controller to which it was connected the last time it had
power. If it is a different controller, the Home Page for the active
configuration appears. If it is the same controller, the screen that was
last displayed before losing power reappears.
During initialization, the display unit polls a predefined address range
on the N2 Bus and attempts to match the DX controllers' configuration
codes with each of the eight display configuration codes stored in the
display unit. It will scan the bus until it finds eight controllers or has
fully scanned the predefined address range. If at least one DX
controller is found, the Choose Controller Screen appears.
Choose Controller:
ADDRESS CONFIGURATION NAME
1
Boiler Plant
2
Chiller No. 1
3
Chiller No. 2
4
AHU1
5
AHU2
Figure 11: Choose Controller Screen
If the configuration of a controller does not match one of the
predefined configurations in the display unit, the default configuration
will be used, if enabled, for that controller.
1. Use the and keys to move the highlight bar to the desired
controller.
2. Press the key to confirm your selection. The Home Page for the
selected controller will appear.
Note:
You can display the diagnostic screen at any time during
normal operation by pressing the
esc
key twice in quick
succession, similar to double clicking a computer mouse
button.
Connection to
DX Controller via
the N2 Bus
(Firmware
Version 3.x
Only)
