Theben KNX Series User Manual

The application programmes RAMSES 718 P/S
RAMSES 718 P / RAMSES 718 S 25
Object 19: Additional heating stage actuating value or PWM additional heating stage
Sends the actuating value for the additional heating stage depending on the configuration, as 1
bit PWM, or 1 byte percentage telegram.
This object is only available if the additional stage is used.
Object 20: Cooling actuating value
Sends the current actuating value or cooling switching command depending on the type of
control selected on the cooling control parameter page.
The object is only available if the cooling function has been selected on the Settings parameter
page (control = heating and cooling).
Object 21: Additional cooling stage actuating value or PWM additional cooling stage
Sends the actuating value for the additional cooling stage depending on the configuration, as 1
bit PWM, or 1 byte percentage telegram.
This object is only available if the additional stage is used.
Object 22: Send heating/cooling operation, or change over between heating and cooling
The object is available if the cooling function has been selected on the Settings parameter page
(control = heating and cooling).
The function of the object depends on the change over between heating and cooling parameter
on the cooling control parameter page.
Parameter: Change over between
heating and cooling
Function
Automatic
Reports whether the room thermostat is currently
operating in heating or cooling mode.
Via object
Receives the switching command for switching between
heating and cooling mode.
The telegram format can be set on the cooling control parameter page:
Parameter: Format object heating/cooling
Telegram format
DPT1.100
Heating = 1, Cooling = 0
Inverted
Heating = 0, Cooling = 1
Object 23: Current set point
Sends the currently set temperature.
The transmission behaviour can be set on the heating set points parameter page.
Object 24: Control actual value
Sends the actual value actually used by the room temperature controller.
 The control actual value might, depending on the source for the actual value, deviate
from the internally measured temperature (object temperature value).

Theben KNX Series Specifications

General

Communication Protocol	KNX
Ambient Temperature	-5°C to +45°C
Storage Temperature	-25°C to +70°C
Protection Class	IP20
Relative Humidity	5% to 95%, non-condensing
Operating Voltage	24 V DC (via KNX bus)