Siemens Desigo RXB, Technical Manual

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Siemens RXB (KNX) application library FNC Description of functions for FC-10, FC-11, FC-12 CM110385en_05
Building Technologies General and central functions 28 Feb 2009
11.2 Digital inputs
The following volt-free contacts can be connected to digital inputs D1 and D2:
•
Presence detector or window contact (for details of this function see Section 5).
•
Safety thermostat electric heating coil / reheater (for details of this function, see
page 95).
•
Safety thermostat outdoor temperature (for details of this function, see page 103).
Digital input Function Type of operation HandyTool
Input 1
Input 2
*113
*114
Not used by the
application Free: Bus = 1 = Contact closed
Free: Bus = 1 = Contact open
0= Default
1
(Contact may be used freely (see page 136 )
Occupancy Occupied = Contact closed
Occupied = Contact open
3
2
Window Window open = Contact open
Window open = Contact closed
4
5
Safety thermostat
el. heating coil Overtemp = Contact closed
Overtemp = Contact open
16
17
Safety thermostat
Outside temperature OT < frost = Contact closed
OT < frost = Contact open
(applications with outside air damper only)
33
32
Do not connect the same type of sensor/functions to both digital inputs.
The controller would ignore the second input.
11.3 Temporary Comfort mode
If the room controller is set to Economy mode and the associated room unit is switched
to Auto (Comfort) , the controller maintains Comfort mode for the period defined by the
temporary occupancy override time (veto) and then switches to Economy. This function
is only available if the room unit concerned has a /Auto switch (see also pages 42
and 53).
Parameter Basic
setting
Range
Resolution
HandyTool
Temporary Comfort mode 60 min 0 ... 360 min 1 min *117
11.4 Presence detector switch-on and
switch-off delay
A switch-on or switch-off delay can be applied to the presence detector function. The
room controller only switches to
Comfort or to Precomfort or Economy mode when the
delay time has expired.
Parameter Basic
setting
Range
Resolution
HandyTool
On delay occupancy detector 5 min 0 ... 90 min 1 min *119
Off-delay occupancy detector 5 min 0 ... 90 min 1 min *120
Note