Program description
FB-KE: 07
SRC KNX
Rev 1
SRC_KNX_620_BMA_E_2009_10_08_001.doc
Seite 13 von 14
Erstellt am 12.01.2010
Switch-off telegram when going beyond a value: These two parameters define the working range of the control,
or the hysteresis.
Attention: Not every value that can be set here can be represented via the 2-byte-float object type. It is important
to check the values at the which the controller actually switches.
Wait for switch-off telegram to start switch-off delay : If the presence is evaluated by the controller, the switch-
off delay is restarted with every ON telegram to the presence object when set to "No". When set to "Yes", the
switch-off delay is started with the first OFF telegram if the control is active.
Switch-off delay after detection of presence: After this time elapses, the presence is switched off if presence was
not switched on again during this time via the communication object.
Off-time after switching manually: If switching manually, the on/off controller stays in the state specified
through manual control for the set time period. After this time elapses, the automatic mode is resumed as
defined by the operating mode.
Inverted sending: The states sent by the switching output can be inverted here.
Temperature controller, on/off
The operating mode of this controller is identical to that of the on/off light value controller. They differ in that the input
object for the current value is of a different type.
Comm. object
KNX (EIB) type
Size
Channel… : Input temperature
9.002 (EIS 5)
2 bytes
Controller, common 2-byte-float, on/off
The operating mode of this controller is identical to that of the on/off light value controller. Again, they differ in that the
input object for the current value is of a different type.
Comm. object
KNX (EIB) type
Size
Channel… : Input 2-byte-float
9.001 (EIS 5)
2 bytes
Also, the upper and lower limit values must be entered separately using two parameters for value and multiplier.
Controller, common 0… 255, on/off
The operating mode of this controller is identical to that of the on/off light value controller. Again, they differ in that the
input object for the current value is of a different type.
Comm. object
KNX (EIB) type
Size
Channel… : Input value 0… 255
5.001 (EIS 6)
1 byte
Application example: heating controller
The following figure shows an example of temperature control setup. Both the current temperature and the set value
adjustment are sent by a room operating unit. The controller in the gateway calculates the control value and sends it
to the heating valve via the KNX bus. If a presence detector or a window contact are integrated in the system, their
values can be taken into account by the controller to achieve an optimal level of energy efficiency.
KNX drive
for radiator
EnOcean
Room control unit
EnOcean
Window contact
EnOcean
Presence detector
KNX EnOcean
Gateway
KNX ENO 622
