Fronius WND-WR-MB, Operating Instructions Manual, Page: 16 / 36

Modbus Adress 7 (value 1 + 2 + 4 = 7)
DIP
Switch 1 2 3 4 5 6
Position 1 1 1 0 0 0
Modbus Adress 20 (value 4 + 16 = 20)
DIP
Switch 1 2 3 4 5 6
Position 0 0 1 0 1 0
Terminating res-
istors - explana-
tion of symbols
Inverter in the system
e.g. Fronius Symo
Meter - Fronius Smart Meter
Terminating resistor is integrated in the meter.
Modbus RTU slave
e.g. Fronius Ohmpilot, Fronius Solar Battery, etc.
Termination resistance
R 120 Ohm
Terminating Res-
istors The system might work without terminating resistors. Due to interferences, the
use of terminating resistors according to the following schemes are recommen-
ded.
Activate the Fronius Smart Meter ter-
minating resistor (R 120 Ohm) by
switching pin 7 to ON (1).
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