Daikin EKMBPP1, Installation Manual

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5 Installation
Installation manual
17
EKMBPP1
Modbus adapter
4P720139-1B – 2023.09
INFORMATION
▪ The EKMBPP1 can operate in Master or Slave mode with
any remote controller. Note that some wireless remote
controllers (BRC*) may require the corresponding receiver
to be configured to operate in Sub (S) mode when the
EKMBPP1 is in Main (M) mode. See the installation manual
of the unit for more information.
▪ Only 1 Modbus master is allowed.
5.4.4 To connect the RS485 wiring
The RS485 D-Bus MUST be installed using a twisted pair cable, as
shown in the following figure, to connect terminals DA(+) and DB(-).
▪ Terminal DA(+) MUST be connected to all other DA(+) terminals, on
every EKMBPP1 kit.
▪ Terminal DB(-) MUST be connected to all other DB(-) terminals, on
every EKMBPP1 kit.
▪ The common terminal ground (GND) MUST be connected together,
on every EKMBPP1 kit. When using a shielded cable, the shield can
be used for this purpose.
DB- DA+
GND DB- DA+
X2M
GND DB- DA+
X2M