MyOT interface/actuator for OpenTherm Boilers
User manual
9
These are described in the following sections.
COMMAND_CLASS_BASIC
This command class can be used to switch the boiler on/off (or to know the current status).
However, the auto-report of this CC was not implemented for performance reason.
Therefore, to perform the same operation is recommended to use the
COMMAND_CLASS_SWITCH_BINARY.
COMMAND_CLASS_SWITCH_BINARY
This command class can be used to switch the boiler on/off (or to know the current status).
Moreover if, for external reason, the boiler switch itself on/off an auto-report to node 1 of
the network is triggered.
COMMAND_CLASS_THERMOSTAT_SETPOINT
This command class can be used to manage the setpoints of the boiler. Is important to
known that the max and min value of these setpoints are not reported by this command
class (the reported values are just a 'small' minimum and a 'big' maximum). These values
are instead reported with the CONFIGURATION command class. This was done to
support the write operation of these 2 values in some future developments. The map
between the 'mode' and the setpoint is as below, while the unit of each measure is
communicated correctly in the report message of the command class.
Modalità (hex)
Modalità (dec)
Misura
0x01
1
Heating Setpoint
0x0D
13
DHW Setpoint
COMMAND_CLASS_SENSOR_MULTILEVEL
This command class maps a series of measures that are obtained from the boiler. The
map between the 'Sensor type' and the provided measure is as below, while the unit of
each measure is communicated correctly in the report message of the command class.
