Siemens RDG100KN Basic Documentation page 27

Clarification
concerning current
setpoint in Comfort
mode
2-pipe or
4-pipe with P09>P10
4-pipe with P09<P10
General notes
Notes on setpoint
adjustment (LTE-Mode
with Synco only)
Setpoint priority
Setpoint master (RMB)
Siemens
Building Technologies
The Comfort setpoint w (e.g. customer setting on the display) and the current
setpoint w2 (used by the thermostat for temperature control, but not on the display)
is handled differently depending on the selected application and setting.
Both the Comfort setpoint w and current setpoint w2 have the same values.
Heating mode
The Comfort setpoint w (value selectable via e.g. rotary knob) is in the middle of
the dead zone (P33). The current setpoints w2.. (used by the thermostat for
temperature control) are at the boundaries of the dead zone.
w2h = Comfort setpoint (w) – ½ dead zone (Xdz)
w2c = Comfort setpoint (w) + ½ dead zone (Xdz)
· The supported communication objects are different in LTE-Mode and S-Mode
· Changes via the local HMI or tools have the same priority (the last option is
always used)
· Setting the Comfort basic setpoint will reset the runtime Comfort setpoint
· Central setpoint shift is used for summer/winter compensation in particular
· Setpoint shift does not affect the setpoints stored in P08, P11, P12 and P33
· Local shift and central shift are added together
· Applies only to Comfort and Economy setpoints; Protection setpoints are not
shifted centrally
· The current setpoint heating and cooling is limited by the Protection setpoint. If
the Protection setpoint is OFF, then both the minimum 5 °C and maximum
40 °C are used
· The current setpoints for cooling and heating of the same operating mode have
a minimum distance of 0.5 K
· The result of local and central shift, together with the room operating mode, is
used by the thermostat for temperature control (current setpoint)
· The room thermostat always adopts the setpoints received from the controller
RMB795B. Thus the setpoints locally adjusted on the thermostats are
overridden by the setpoints from the room group (e.g. every 15 minutes)
- RDG16..KN: On RMB SW Version >= 2.0, the circumstances under which
the controller sends out the setpoints can be defined. Refer to CE1P3122
[20] for "Setpoint priority" and "Setpoint Master" functions
- RDG100KN: The local setpoints are always overridden
RDG100KN, RDG160KN, RDG165KN Basic Documentation
Cooling mode
27 / 132
CE1P3191en
2018-07-03