Overview Of Connections; Vitogate 300; Power Supply Unit; Installing The Lon Communication Module - Viessmann Vitogate 300 Installation And Service Instructions Manual

Overview of connections

Vitogate 300

F
Term
BIAS
BIAS
LON status
E
Reset
Fig. 1

Power supply unit

+ + - -
OUTPUT DC
24V 0.75A
INPUT AC
100-240V
N L
Fig. 2
INPUT 230 V/50 Hz
OUTPUT 24 V

Installing the LON communication module

Install the LON communication module in the Vitotronic
control unit.
DIP switch for RS485 interface:
A
1 Bias voltage
2 Bias voltage
3 Terminator 120
RS485 connection: Interface for BACnet MS/TP or
B
Modbus RS485
Power supply 24 V : Power supply unit, secon-
C
dary side
A
D LAN connection with PC/laptop or BACnet IP or
Modbus TCP/IP
LON connection, RJ45 connectors, screened
E
USB connection for software updates
F
B
Setting the DIP switch
In the delivered condition, the DIP switches are set to
"OFF". The functions are disabled.
C
If interface RS485 is used, set DIP switches 1 and 2 to
"ON". If the Vitogate 300 is at the beginning or end of
the RS485 network, set DIP switch 3 to "ON".
D
Installation sequence
Ω
"LON communication module" installation
instructions
9