Closed-Loop CANbus Communication

Closed-Loop CANbus Communication with the LYNK II Gateway

The LYNK II Communication Gateway enables communication between the AES Cabinet and inverters. Using CANbus, the LYNK II Gateway connects the BMS of the battery with the battery BMS ports of the Solis S6-EH3P and automatically:

Establishes battery limits (charge/discharge current, voltage, temperature) so the inverter always operates within safe parameters.
Pushes live state-of-charge and operating data to the inverter for accurate power-flow and alarm handling.
Continuously adjusts the inverter’s charge profile in response to real-time cabinet conditions.

System Layout

LYNK II Connections

Result

1x AES Cabinet

1× S6-EH3P

Connect the LYNK II CANout to the inverter BMS 1 (BMS 2 open).

A single closed-loop pathway.

2× AES Cabinet

1× S6-EH3P

Utilize one LYNK II per cabinet. Connect the first LYNK II CANout to BMS 1 and the second LYNK II CANout to BMS 2.

The inverter uses each cabinet as an independent battery and shares the power evenly.

1x AES Cabinet

2× S6-EH3P

Requires two LYNK II Gateways. Connect the LYNK II CANout to the inverter BMS 1 (BMS 2 open) in each inverter.

Each inverter has its own closed-loop connection and operates as if it is connected to a separate battery.

NOTICE
EQUIPMENT DAMAGE Connect the Solis inverter’s BMS1 and BMS2 ports only to the CAN port on the LYNK II Gateway using a standard CAT6 or higher cable. Do not connect the inverter's BMS ports directly to the J3 or J4 ports on the AES Cabinet’s High Voltage Box, as this can damage the inverter. Failure to follow these instructions may result in equipment damage.