Chapter 6: Setting Up Communication
SolarEdge Installation Guide – MAN-01-00057-2.2
7 Tighten the terminal block screws.
8 Check that the wires are fully inserted and cannot be pulled out easily.
9 Push the RS485 terminal block firmly all the way into the connector on the right side of the
communication board.
10 Terminate the first and last SolarEdge device (inverter/SMI/Control and communication gateway,
etc.) in the chain by switching a termination DIP-switch inside the inverter to ON (move the switch
up). The switch is located on the communication board and is marked SW7.
Figure 23: RS485 termination switch
NOTE:
Only the first and last SolarEdge devices in the chain should be terminated. The other inverters in
the chain should have the termination switch OFF (down position).
► To connect to the monitoring portal:
1 Designate a single inverter as the connection point between the RS485 bus and the SolarEdge
monitoring portal. This inverter will serve as the master inverter.
2 Connect the master to the SolarEdge monitoring portal via the LAN or GSM modem communication
option.
► To configure the RS485 communication bus:
All inverters are configured by default as slaves. If reconfiguration is required:
1 Make sure the ON/OFF switch is OFF.
2 Turn ON the AC to the inverter by turning ON the circuit breaker on the main distribution panel.
WARNING!
ELECTRICAL SHOCK HAZARD. Do not touch uninsulated wires when the inverter cover is
removed.
3 Use the user buttons to configure the connection, to configure the inverter designated as master,
select the following in the LCD menus:
Communication Server LAN or RS232
RS485-1 Conf. Device Type SolarEdge
RS485-1 Conf. Protocol Master
RS485-1 Conf. Slave Detect
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