Daikin EKMBPP1, Installation Manual

Page: 32 / 40

6 Configuration
Installation manual
32
EKMBPP1
Modbus adapter
4P720139-1B – 2023.09
INFORMATION
The Modbus master timeout ONLY overrules the
Recommended
on and Forced on Smart Grid operation in case no holding
register write command is received for 120 seconds. The
Forced off
Smart Grid operation will NOT be overruled.
INFORMATION
In case control limiting is applied to the remote controller (see
"6.4.3 Control limiting" [
4
26]), the Smart Grid request will only
change unrestricted settings. For example, if the setpoint is
restricted to a certain value, a
Forced on
request will switch
the unit on, but it will not change the setpoint. However, note
that a
Forced off request is executed regardless of any set
remote controller limits. Setpoint restrictions can also be set
from another centralised controller or a remote controller.
These restrictions will overrule the Smart Grid setpoint change
and thus deactivate the Smart Grid request.
INFORMATION
After a power failure of the adapter, check the setpoint on the
remote controller to make sure the unit is operating as
expected. If the setpoint deviates from the current
configuration, change the setpoint manually on the remote
controller. This will restore the correct configuration. Building
Management Systems can implement logic to automatically
detect the situation and restore the correct configuration.
INFORMATION
Only 1 Modbus master is allowed. If the system is under
control by a Smart Grid provider, this means it cannot be
controlled by a BMS (building management system) at the
same time and vice versa.