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
9
3
Communication
objects
3.1
Default
settings
of
the
communication
objects
The
following
chart
shows
the
default
settings
for
the
communication
objects:
Default
settings
Nr.
Channel/Input
Function
Length
Priority
C
R W T
U
0
Actual
temperature
value
Transmit
temperature
value
2
Byte
Low
X
X
X
1
Higher
message
value
Send
message
1
Bit
Low
X
X
X
2
Lower
message
value
Send
message
1
Bit
Low
X
X
X
3
Frost
alarm
Send
alarm
1
Bit
Low
X
X
X
4
Heat
alarm
Send
alarm
1
Bit
Low
X
X
X
5
External
sensor
Read
external
sensor
2
Byte
Low
X
X
6
Setpoint
comfort
Set
setpoint
2
Byte
Low
X
X X X
7
Manual
setpoint
value
offset
Reduction/Increase
2
Byte
Low
X
X
8
Control
value
heating
Send
control
value
1
Bit
Low
X
X
X
8
Control
value
heating
Send
control
value
1
Byte
Low
X
X
X
8
Control
value
heating/cooling
Send
control
value
1
Bit
Low
X
X
X
8
Control
value
heating/cooling
Send
control
value
1
Byte
Low
X
X
X
9
Control
value
additional
heating
Send
control
value
1
Bit
Low
X
X
X
10
Control
value
cooling
Send
control
value
1
Bit
Low
X
X
X
10
Control
value
cooling
Send
control
value
1
Byte
Low
X
X
X
11
Mode
comfort
Switch
mode
1
Bit
Low
X
X X
12
Mode
night
Switch
mode
1
Bit
Low
X
X X
13
Mode
frost/heat
protection
Switch
mode
1
Bit
Low
X
X X
14
Heating
disable
object
Disable
heating
1
Bit
Low
X
X
15
Cooling
disable
object
Disable
cooling
1
Bit
Low
X
X
17
Heating
request
Send
request
1
Bit
Low
X
X
X
18
Cooling
request
Send
request
1
Bit
Low
X
X
X
19
Heating/Cooling
switchover
0=Heating
1=Cooling
1
Bit
Low
X
X