MDT Technologies SCN-RTRGS.02, Техническое руководство

Страница: 56 / 110

Technical Manual
Glass Room Temperature Controller Smart SCN-RTRGx.02
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 • Germany
Phone: +49-2263- 880 • knx@mdt.de • www.mdt.de
56
56
The selection of the “ operating mode ” determines whether only heating, only cooling or
simultaneous heating and cooling is used.
Select this setting according to the setting on the controller.
The system used can be selected via the " System " setting. If there is a common system for the
cooling & heating process, the setting 2 pipe/1 circuit must be selected. If the cooling process and
heating process are controlled by two individual units, the setting 4 pipe/2 circuit must be selected.
2 pipe / 1 circuit :
In the case of a common pipe system for the cooling and heating process, there is also only one
communication object that receives the control value from the controller.
4 pipe / 2 circuit :
If there is a separate pipe system for the heating and cooling process, both processes can also be
carried out separately from each other. Consequently, there are also separate communication
objects for both control values.
The following communication objects are available for this parameter:
Number Name/Function
Length Usage
12
Control value Heating –
Receive status
1 Bit Receiving the control value for Heating.
12 Control value Heating/Cooling –
Receive status
1 Bit
Receiving the common control value for
Heating/Cooling.
Only with setting:
"H Cooling" and "2 pipe/1 circuit".
13
Control value Cooling –
Receive status
1 Bit Receiving the control value for Cooling.
Table 58: Communication Objects – Control values Heating/Cooling
The " HVAC Status object " parameter determines whether the received controller status is to be
displayed as HVAC Status or HVAC Mode.
The following communication object is available:
Number Name/Function
Length Usage
20 DPT_HVAC Mode 1 Byte
Receiving the controller status as "Mode ”
20 DPT_HVAC Status 1 Byte
Receiving the controller status as " Status”
Table 59: Communication objects – HVAC Status object
The setpoint shift is carried out via the buttons 3/4.
For settings see:
4.5.4.2 Buttons 3/4 – Temperature shift as extension unit
The operating mode selection, the OFF function (control value=0%) and the Heating/Cooling
selection are carried out via buttons 1 and 2 (Single-button function). For the settings, see:
4.5.3.1 Mode selection (internal connection)
4.5.3.3 OFF (control value = 0%) (internal connection)
4.5.3.4 Switchover Heating/Cooling (internal connection)