Closed-Loop Communication

• LYNK Network

• Setting Up Closed-Loop Communication with the LYNK II Gateway

• Setting Up Closed-Loop Communication without the LYNK II Gateway

The HELIOS ESS battery supports closed-loop communication using two different
methods.

1. With LYNK II Gateway. Connect CAT6 or higher cables between the COM3/COM4
   port on the HELIOS ESS battery and the LYNK II Gateway, and between the LYNK II
   Gateway and the CAN port on the inverter.

For a list of inverters supported by the LYNK II Gateway and for information on
configuring the LYNK II, refer to the LYNK II Installation and Operation Manual (805-
0033).

2. Without LYNK II Gateway. The COM2 port on the HELIOS ESS battery allows direct connection to most inverter brands using a CAT6 or higher cable to the inverter's corresponding CAN port.

For the list of inverters that support closed-loop communication without the LYNK II, refer to HELIOS ESS Closed-Loop Communication - Supported Inverters.