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Art.-nr.: 611885-G
5
Connecting a Brink Excellent heat recovery (HRV) appliance to a Modbus network, for instance a building automation system (BAS),
requires an interface. This interface, called “Brink Connect”, allows communication between the Brink HRV appliance and a Modbus
network. The interface described here is only suitable for communication between a Brink HRV appliance with UWA control PCB (with
software version from S1.06.06) and a Modbus network. The interface comes with a 1,5 m long connecting cable for connecting the
"Brink Connect" to an Excellent HRV appliance.
Note: It is not possible to use a control unit, humidity sensor or multiple switch in combination with a Brink Connect interface on the
Brink HRV Excellent. If the Brink Connect is used exclusively for reading out values, the control module/Brink Air Control and multiple
switch can still be used.
The system does support an eBus CO
2
sensor (code 532196 - 4 sensors max.) that is connected to the HRV appliances.
If the Brink HRV-appliances are cascaded, the Brink Connect must be connected to the Master appliance.
General
Technical speci¿cations:
Appliance Interface %ULQN+59V¿WWHGZLWKD,&EXVFRQQHFWLRQFRQQHFWRU;RQ%ULQN8:$3&%'HOLYHU\
FRQ¿JXUDWLRQ02'%865786/$9(
Dimensions WxHxD Dimensions WxHxD 36 x 89.7 x 62.2 mm
Connection Connection through screw plug terminals up to 1.5 mm²
Housing Housing as per DIN 43880 for use in electrical distribution boxes (RAL 7035)
Weight Weight ca. 100 g
Storage temperature Storage temperature -10...+70 °C
Power consumption Power consumption 0.2 W
Relative humidity Relative humidity up to 85% without condensation VDE 0160, EN 50178, Class 3K3
Installation position Installation position on vertical surfaces (wall installation, connectors top and bottom)
Interfaces Interfaces 1 x RS485 / 1x I2C interface
Protection class Protection class IP 20
Power supply Power supply +5 VDC ±10 %
Module status display Power supply indication by green LED
System bus RS485
Ambient operating temperature +5...+40°C
Modbus Interface
Brink Connect (Interface module I2C<>Modbus) allows making a connection between an RS485 interface and an I2C interface. That
way products or installations that do not have a Modbus interface as standard can still be incorporated into a Modbus network using
a (free) I2C interface.
Application
Con¿guration %rinN Connect
The Brink Connect come with a default Modbus Slave address
11 ( 0x0B). Communication parameters Modbus:
 %DXGUDWH
 3DULW\HYHQ
 6WRSELWV
Connector no. Function
1 +5V system voltage
2 GND system voltage
3 I2C bus Serial Data (SDA)
4 I2C bus Serial Clock (SCL)
5 RS485 - A
6 RS485 - B
7KH3&%FRPHVZLWKWKHVWDQGDUG0RGEXVVODYHDGGUHVV7KDWDGGUHVVPXVWEHXVHGIRUWKH¿UVWFRPPXQLFDWLRQVHVVLRQ
Then a new Modbus slave address between 1 and 247 can be entered at register address 1000, using function code 0x06, write
single register When entered correctly, the Modbus slave address will directly be active.
The standard register address is 1000; Dependent on the program used, it may have shifted 1 step (999 or 1001). After chang-
ing the slave address, you must call up this address using function code 0x03 and then check whether the changed address is
correct. Then the power to the Brink Connect must be switched off. Now the slave address has been changed correctly.
pwr
1
+5V
2
GND
3
SDA
4
SCL
5 A
485
6 B
485
I2C <> Modbus
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36
89,7
62,2
GB
5


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