STEP 8 - SET THE COMMUNICATION SWITCHES
Communication switches are located on the lower right side of the board, next to the
communication connectors. The switches are independent and are labeled on the board:
1. Refer to the inverter manual to determine whether to use CAN or Modbus communication.
2. Set the switches based on whether the installation is one unit or multi-unit. A single
Powerwall, or the last Powerwall in a multi-unit chain, has one setting. All other Powerwalls in
a multi-unit chain have a second setting.
Switch Number Single/Last Unit,
CAN
Multi-unit, CAN Single/Last Unit,
Modbus
Multi-unit,
Modbus
S2 Right Right Left Left
S6 Right Right Left Left
S1 Up Up Down Down
S5 Down Up Down Down
S3 Down Down Down Down
S4 Up Up Up Down
Step-by-Step Installation Instructions
18
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