The system starts automatic detection of the SolarEdge slave inverters connected to the master
inverter. The inverter should report the correct number of slaves. If it does not, verify the
connections and terminations.
4 Verify the connection of the master to the SolarEdge monitoring portal, as described in Verifying the
Connection on page 49.
Creating an RS232 (UART) Connection
This communication option enables connecting the inverter via a GSM modem available for purchasing at
SolarEdge. The modem is provided with its own user manual, which should be reviewed.
► To connect a GSM modem to the inverter:
1 Remove the inverter cover as described in Removing the Inverter Cover on page 42.
2 Remove the seal from one of the large openings in communication gland #1 and insert the cable
supplied with the GSM kit through the opening.
3 Pull out the 9-pin RS485/RS232 terminal block connector, as shown below:
Figure 24: RS485/RS232 9-pin terminal block
4 Loosen the screws of pins TX, RX, and G on the right of the 9-pin terminal block.
Figure 25: RS485/RS232 terminal block
5 Insert the wire ends into the G, TX and RX pins shown above.
6 Tighten the terminal block screws.
7 Push the RS485/RS232 terminal block firmly all the way into the communication board.
8 Connect the other end of the RS232 cable to the GSM modem.
9 Connect the power supply to the modem and to an electrical socket.
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