iSMA-B-LP Room Panel/Modbus
version 1.3
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If one or more user defined parameters have the same priority, register with the lowest
address is displayed first.
In the upper right corner of the display there are four 14-segment displays dedicated for the
clock, submenu and parameters
’
names. These names are stored in the special Submenu
registers as a ASCII code values corresponding to the following characters (from the left
side) of the submenu name. In case when a character value equals 0
10
=0x00
16
(NULL), the
character is hidden (not displayed). If all characters of particular parameter name are NULL
then the clock is displayed (if active).
4.8.3
LCD_BACKGROUND_ILLUMINATION_SETTINGS
When one of four keypad buttons is pressed, the Room Panel changes its state into Active
mode.
The same situation happens when the power supply is reconnected or after the Room Panel
restart.
In case when there is no keypad activity and the Room Panel stays ON, the subsequent
Background illumination modes activate. LCD display illuminates only when a value of the
register bit DEVICE_CONFIGURATION bit 3 is
“true”
. If not, LCD display is never illuminated.
Particular modes activate sequentially according to the following sequence:
1.
Active
–
the mode activates after pushing any keypad buttons or after restart of the
Room Panel. LCD display illuminates with a brightness level stored in
BACKGROUND_ILLUMINATION_LCD_FOR_ACTIVE_MODE register. In default setting, the
value of Illumination for the active mode is 60%. It means that the display illuminates
with 60% of the maximum possible brightness. The LCD display stays in Active mode for
as long as it is determined in BACKGROUND_ILLUMINATION_LCD_TIME_TO_IDLE
register. The register contains time value in seconds (in default 10 sec) and the time
countdown starts with activation of the Active mode . It means that pressing any of the
keypad buttons resets the timer and countdown starts again.
2.
Idle
–
the mode becomes active always after Active mode (Time to Idle is up). The
display illuminates with a brightness level stored in
BACKGROUND_ILLUMINATION_LCD_FOR_IDLE_MODE register (in default 40%). The
display stays in Idle mode during the time stored in
BACKGROUND_ILLUMINATION_LCD_TIME_TO_STANDBY register (in default 5 sec).
3.
Standby
–
the mode becomes active always after Idle mode (Time to Standby is up). The
display
illuminates
with
a
brightness
level
stored
in
BACKGROUND_ILLUMINATION_LCD_FOR STANDBY MODE register (in default 0%). The
display stays in Standby mode for as long as Active mode is not initiated.
Actual LCD display brightness level value is stored in
BACKGROUND_ILLUMINATION_LCD_CURRENT_VALUE register.
