Technical
Manual
Room
Temperature
Controller
SCN
‐
RT1
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
13
The
chart
shows
the
dynamic
range
of
the
available
parameters:
ETS
‐
text
Dynamic
range
[default
value]
comment
Setpoint
offset
with
right
keys
not
active
active
activates
the
setpoint
offset
via
the
right
keys
Function
of
left
keys
switched
off
present/absent
Ventilation
level
assigns
a
function
to
the
left
keys
LCD
backlight
permanent
off
permanent
on
ext.
object
ON=1;
OFF=0
ext.
object
ON=0;Off=1
Adjustment
for
the
turn
off
of
the
LCD
backlight
Chart
4:
Additional
settings
with
display
The
function
“Setpoint
offset
with
right
keys“
activates
the
setpoint
offset
with
the
right
keys.
Now,
a
new
absolute
setpoint
can
be
assigned
by
the
right
keys.
The
manual
movement
of
the
setpoint
is
still
possible
by
the
communication
object
(have
a
look
at
4.4.3).
There
are
two
possible
functions,
which
can
be
assigned
to
the
left
keys.
On
the
one
hand,
you
can
send
the
state
whether
a
person
is
in
the
room
or
not.
By
sending
the
telegram
“absent”,
the
temperature
controller
switches
automatically
over
to
the
standby
mode.
The
telegram
“present”
causes
a
switch
over
to
the
comfort
mode.
On
the
other
hand,
you
can
control
ventilation
by
the
left
keys.
The
backlight
can
be
switched
permanent
on
or
permanent
off.
Furthermore
it
can
be
switched
by
an
external
communication
object.
The
polarity
of
the
communication
object
can
be
chosen
by
the
settings.
The
chart
shows
the
relevant
communication
object
for
switching
the
LCD
backlight
by
an
external
communication
object:
Number
Name
Length
Usage
27
LCD
backlight
1
Bit
Controlling
of
the
LCD
backlight
Chart
5:
Communication
object
LCD
backlight
extern