EasyGrid LT User Guide
22
You must identify the host device on the RS-485 network and then proceed with its 485 BUS line biasing,
as figured above.
Two termination resistors must be installed and have the same characteristic impedance value as the
twisted wire used on the 485 network. RS485 network termination resistors typical values are
respectively 120
Ω
and ½ Watt.
In
Nortech mode
, it is possible to connect up to 32 units together. When all units are connected on the
same RS-485 bus it allows a user to execute the software configuration from a single USB port.
In
MODBUS mode
, it is possible to connect up to 247 units.
