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Parameter 2-pipe
Running time heating / cooling valve
Offset heating valve
Offset cooling valve
Notes
K N X
CO
R
Notes
Siemens
Building Technologies
Basic setting
150 s
0 s
0 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
Type
R W C T U
1 0 1 1 0 5.001
DPT_Scaling
• 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.
RXB (KNX) application library
Control sequences
Range
0 ... 360 s
0 ... 360 s
0 ... 360 s
Send heartbeat
yes
FNC Description of functions for FC-10, FC-11, FC-12
Resolution
HandyTool
1 s
*061 1)
1 s
1 s
Value
0...100%
0 = 0%
255 = 100%
CM110385en_05
28 Feb 2009
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