Nibe MODBUS 40 Installateurhandbuch Seite 16

GB
Connecting to Modbus-master
The external Modbus master is connected to terminal
block X2 on the Modbus card (AA9).
NOTE
MODBUS 40 uses the communications stand-
ard RS485.
Connect the master with a cable according to
the recommendations for RS485.
MODBUS 40
MODBUS 40
GND
_
B
+
A
AA9-X2
16
EXTERNT
External
Modbus master
Settings
Modbus Master
Method RTU
Speed 9600 baud
Word length 8 bits
Parity None
Stop bits 1
Address Fixed 0x01 up to and including
Modbus 7.
Selectable 1 - 247 from and includ-
ing Modbus 10.
Caution
Software version Modbus 10 is required to
manage selectable address.
The heat pump/indoor module software must
be version 5539 (4150R7 for NIBE F1345) or
later. If it is not, perform a software update.
The update is available at
www.nibe.eu/software, alternatively on USB
memory stick
Heat pump/indoor module
1. Start the heat pump/indoor module and select
MODBUS 40 in menu 5.2 "System settings" (menu
5.2.4 for NIBE F1345, VVM 310, VVM 320, VVM 325
and VVM 500).
2. Set the address to MODBUS 40 in menu 5.3.11.
(This menu is only visible if MODBUS 40 has soft-
ware version Modbus 10 or later)