
89/166
Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12 CM110385en_05
Building Technologies
Control sequences
28 Feb 2009
Parameter 2-pipe
Basic setting
Range
Resolution
HandyTool
Running time heating / cooling valve
150 s
0 ... 360 s
1 s
*061 1)
Offset heating valve
0 s
0 ... 360 s
1 s
Offset cooling valve
0 s
0 ... 360 s
1 s
1) In the case of 2-pipe applications (changeover), the parameter *62 (Running time
cooling valve) is visible in the HandyTool, but has no effect.
•
For FNC: 10, 12, 18, electromechanic actuators are not allowed for load reasons.
•
Also, thermal valves do not have parallel operation of Y1 / Y2 and Y3 / Y4.
8.1.5
Values representing valve actuator positions
Valve positions are available in the following S-mode communication objects:
Heating coil output (Output communication object)
Cooling coil output (Output communication object)
Flags
R W C T U
Type Send
heartbeat
Value
1 0 1 1 0 5.001
DPT_Scaling
yes
0...100%
0 = 0%
255 = 100%
•
For DESIGO integration:
With FNC02 and FNC03 (changeover applications) in S-mode, the valve position is
mapped only to
heating coil output
.
•
If you use KNX / EIB bus actuators, check the flags: the reading permission of the
actuator must be disabled!
Since EIB/KNX bus actuators are available from a variety of manufacturers, the
name of their S-mode input communication object varies accordingly.
Notes
KNX
R
CO
Notes