Send Heartbeat And Receive Timeout; Startup; Heating And Cooling Demand - Siemens RDG100KN Basic Documentation

LTE-Mode/S-Mode
Reducing the bus load
Startup response
Startup delay
K N X
R
Heating output primary
Heating output secondary
Cooling output primary
Cooling output secondary
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Siemens
Building Technologies

3.11.5 Send heartbeat and receive timeout

In a KNX network, S-Mode and LTE-Mode communication objects can be exchanged
between individual devices. The "Receive timeout "defines the period of time within
which all the communication objects requested from a device is received at least
once. If a communication object is not received within this period, a predefined value
is used.
Similarly, the "Send heartbeat" defines the period of time within which all the
communication objects requested must be transmitted at least once.
Fixed times are specified as follows:
– Receive timeout: 31 minutes
– Send heartbeat: 15 minutes
Object [KNX obj. Nr.]
Room operating mode:
Time switch [12]
Room operating mode:
1)
Preselection [7]
Application mode [31]
Room operating mode
2)
Window state [20]
1)
For RDG100KN, RDG160KN, RDG165KN, RDG400KN and RDG405KN
2)
Only available in S-Mode for RDG160KN (SW version
slave
Individual zones can also be disabled (out of service) via control parameter if they
are not being used. In disabled zones, the LTE signal no longer sends periodically
and therefore reduces bus load.

3.11.6 Startup

The application is restarted after every reset, so that all the connected motorized
valve actuators are synchronized (see 3.7).
After a reset, it takes up to 5 minutes for all the connected room thermostats to
restart. This is designed to avoid overloading the mains power supply when
restarting. At the same time, it reduces the load on the KNX network, as not all
thermostats transmit data at the same time. The delay (T
the thermostat's device address. The device starts to send after the delay.

3.11.7 Heating and cooling demand

In conjunction with Synco, the heating and/or cooling demand from each room is
transmitted to the BACS to provide the required heating or cooling energy.
An example for LTE-Mode is described in 3.11.4.
In S-Mode, the current state signals of the control outputs are available.
RDG100KN, RDG160KN, RDG165KN Basic Documentation
I/O Minutes
Receive 31
Receive 31
Receive 31
Transmit 15
Default value
Comfort
Auto
Auto
Close
V2.04) when set as
) is determined by
WaitDevice
CE1P3191en
2018-07-03