Appendix B: Installing Multiple Meters; Connecting Two Meters - SolarEdge Inline Energy Meter Installation Manual

Appendix B: Installing Multiple Meters

You can connect up to three meters on the same RS485 bus and over SolarEdge Energy
Net.
To connect two meters, install two wires into each screw terminal by twisting the wires
together, inserting them into terminal, and securely tightening. RS485 wiring is daisy-
chained between meters, as described in the following figure:

Connecting Two Meters

To connect the inline meter and an additional meter to the inverter on the same
RS485 bus:
1. Connect the twisted pair wiring to the meters as shown in the figure above.
2. Wire the RS485 connections between the meters and the inverter.
3. For a SolarEdge energy meter with Modbus connection, set the 120 ohm termination
DIP switches as follows.
a. If the meter is the closest to the inverter, the meter should be set for No
Termination. Both switch 1 and switch 2 should be in the UP position.
b. If the meter is the furthest from the inverter, the meter should be set for
Termination. Both switch 1 and switch 2 should be in DOWN position.
4. Set Modbus IDs to available addresses as follows:
a. For Modbus energy meters, set the address using the DIP switches.
b. For inline meters, set the address using the meter's LCD display and buttons.
Inline Energy Meter with SolarEdge Energy Net Communications
Appendix B: Installing Multiple Meters
Figure 20: RS485 chain of meters
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