Basic Documentation

Functions
Additional functions
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On the master: The master switches the group’s operating mode depending on the
window contact state. The operating mode returns to Comfort when the window is
closed.
The window contact state is provided via either local input or bus. When the
thermostat receives information from both sources, the local input takes priority.
On the slave: Only the slave connected to the local window contact switches the
operating mode to Protection when the window contact is active. The slave does
not synchronize the master’s operating mode until the window is closed.
The slave does not receive window state from the bus.
Only the presence detector on the master (external or built-in) controls the
master/slave loop accordingly.
Presence detection on local input takes priority.
The master/slave is configured via ETS/ACS or Siemens smartphone application
PCT Go.
Basic setting
Set the thermostat as slave: (Default parameter setting is master.)
● Set slave: P258 = 0 (slave)
● Set slave identification number (P259 = 1…9) to send alarm information to the
master.
● Set master / slave devices in the same zone via Geographical zone apartment
(P901) and room (P902)
Advance setting
● To always display the Comfort setpoint, set P008 = 1 on master and slaves.
● If the setpoint (P010) of the master is set to "save energy", the slave needs to
be set the same.
● The setpoint limitation range (P013 to P016) of the slave can be smaller than
the limitation of the master if requested.
● Together with the Synco devices, set the distribution zone heating / cooling as
needed (P903 to P905)
Presence detector
Setting master / slave
Window contact