Operating Instructions

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Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_04
Building Technologies Control sequences 21 Sep 2010
Motorized and electromechanic valves
HandyTool
Parameter Basic setting Range Resolution HandyTool
Running time cool surf valve 150 s 0 ... 360 s 1 s *052
Offset cooling surface valve 0 s 0 ... 360 s 1 s *054
8.2.2 Values representing chilled ceiling valve actuator
positions
The position of the chilled ceiling valve is mapped to the bus.
The
Cooling surface output communication object must NOT be used for applications
for thermal valve actuators to control KNX/EIB valve actuators. With these applications,
the communications objects have
theoretical valve positions only.
Valve positions are available in the following S-mode communication objects:
Cooling surface 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%
If KNX / EIB bus actuators (S-mode) are integrated in DESIGO, the flags must be
checked: delete read access at actuator!
As there are different manufacturers for EIB/KNX bus actuators, the name of the S-
mode communication object varies.
The valve position in LTE mode is transferred as follows:
Cooling surface output (output)
Possible partner function blocks Known partner
devices
ActPosSetpCoolStageA
Geographical zone
352 HVA
HVAC Valve Actuator
---
In LTE-mode, where directly connected actuators are used rather than bus valve
actuators, the bus load can be reduced by disabling LTE communication for these
outputs (see also pages 83 and 118).
STOP
Important!
KNX
R
CO
Note
Reduce bus load