Technical Manual
Glass Room Temperature Controller Smart SCN-RTRGx.02
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
•
Germany
Phone: +49-2263-
880 • [email protected] • www.mdt.de
35
35
The following table shows the available communication objects:
Number Name/Function
Length Usage
0
Setpoint setting
2 Byte General object for setpoint setting
1
Comfort
2 Byte Setpoint setting in comfort mode
1
Combination object
8 Byte Setpoint setting via combined object.
Visible when "Heating" or "Cooling"
1
Combination object (Heating)
8 Byte Setpoint setting via combined object.
Visible when "Heating and Cooling"
2
Standby
2 Byte Setpoint setting in Standby Mode
3
Night
2 Byte Setpoint setting in Night Mode
4
Frost protection
2 Byte Setpoint setting in Frost protection mode.
4
Heat protection
2 Byte Setpoint setting in Heat protection mode
5
Combination object (Cooling)
8 Byte Setpoint setting via combined object.
Visible when
“Heating and Cooling “
Table 26: Communication objects
–
Setpoint setting (independent setpoints)
4.4.2.1.3 Priority of the operating modes
The following table shows the possible settings for this parameter:
ETS-Text
Dynamic range
[Default value]
Comment
Priority
▪
Frost(Heat) protection/Comfort/Night/Standby
▪
Frost(Heat) protection/Night/Comfort/Standby
Setting the priority order of
the operating modes.
Table 27: Setting
–
Priority of the operating modes
The priority setting of the operating modes can be used to determine which operating mode is
switched on with priority if several operating modes are selected. If, for example, comfort and night
are switched on at the same time in the Frost/Comfort/Night/Standby priority, the controller
remains in comfort mode until it is switched off. Then the controller automatically switches to night
mode.
4.4.2.2 Operating mode switchover (Mode selection)
There are 2 possibilities for operating mode switchover: On the one hand, the operating mode can
be controlled via the associated 1-bit communications objects and on the other hand, the operating
mode can be controlled via a 1-byte object.
The selection of operating modes via 1 bit is done by direct control of the individual communication
object. Considering the set priority, the operating mode controlled via its communication object is
switched on or off. To switch the controller from an operation mode with higher priority to one with
lower priority, the previous operation mode first must be deactivated with a logical
“
0
”
. If all
operation modes are switched off, the controller switches to
“
Standby
”
mode.
