33
1
2
I1 I2 I3
s1
s1
s1
s2
s2
s2
V1
V3
VN
AUX
V2
ON
1
N
O
1
-
V
0
+
=
R
0
2
1
ON
1
N
O
1
-
V
0
+
=
R
0
2
1
SM103E
RS485
R = 120 Ω
ON
0V - +
Technical changes reserved
7.1.3 Commissioning the SM103E
Warning
Before switching on the SM103E, the Modbus module SM211 is too
fitted onto the back of the power meter in one of the four positions
provided, and to be wired.
Make sure that the power supply and the different connections are
properly connected. If you have a doubt, please consult the SM103E
instruction manual.
HTG410H
Devices installation and settings
If the device is located at the beginning or termination of the Modbus
line, the 2 dip-switches on the communication module must be set
on the "ON" position for the resistance activation.
0V terminal is used for the cable shield connection and not
common.