Art. No. ..5192KRMTSD
Art. No. ..5194KRMTSD
Backlighting
The display of the device has white backlighting that can be switched or dimmed. The function
of the backlighting is specified in the parameter of the same name in the "Display" parameter
node in the ETS. The backlighting can be switched permanently on or off. In addition, event-
controlled activation of the backlighting is possible by...
-
pressing any desired control surface and activating the operating mode "Night
ĺ
" on the
internal room temperature controller,
-
pressing any desired control surface and the normal or inverted value of a switching
telegram via the 1-bit communication object "Backlighting On / Off",
-
pressing any desired control surface and the value of a value telegram via the 1-byte
communication object "Backlighting brightness". The lighting can be dimmed using the
value.
If the lighting is switched on by pressing a control surface (rocker or button), the device switches
the lighting off automatically when the switch-off time configured in the ETS elapses. The
switch-off time is retriggered each time a control surface is actuated. If the lighting is to be
switched on in the "Night" operating mode, the lighting remains switched on continuously when
night mode is active. Switching on by pressing a button or via the operating mode "Night"
always takes place using the brightness value configured in the ETS or specified locally in the
menu level.
When the backlighting is switched by the 1-bit communication object (alternatively to the 1-byte
object), the lighting remains switched on continuously according to the switching value
(not inverted: "0" = OFF / "1" = ON; inverted: "0" = ON" / "1" = OFF). Here the switch-on
brightness is defined by the display brightness value configured in the ETS or specified locally in
the menu level.
In the case of activation by the value object the lighting is dimmed in accordance with the
received value ("1...254") or actuated to the maximum ("255"). The value "0" switches the
lighting off completely.
Lighting activation by operating a control surface area can be combined with switching or
dimming via the corresponding objects. In this case the control via the communication objects
has a higher priority. The lighting is switched on automatically by pressing a control surface, and
is only switched off again when the switch-off time configured in the ETS elapses, if the lighting
is to be switched off via the corresponding communication object (object value "OFF" or "0").
Switching on by pressing a button always takes place using the brightness value configured in
the ETS or specified locally in the menu level.
In addition, the lighting can also be switched or dimmed by the communication objects,
independently of operation on the device. In this case, the lighting is not switched off
automatically when the time has elapsed. The switch-off can then only take place using a
switch-off telegram in accordance with the normal or inverted telegram polarity or via a value =
"0" It is not possible to switch-off backlighting switched on by operation early using a bus
telegram.
Page 94 of 309
Software "Room controller display compact module 146x11"
Functional description