Enabling LYNK II to Communicate with Schneider Electric Devices

When properly connected to a closed-loop network and set to use the Xanbus protocol, LYNK II will transmit real-time parameters from the Discover Lithium battery, including voltage, current, temperature, state of charge, and fault conditions to the Schneider Electric inverter. LYNK II will also transmit charge voltage and current requests from the Discover Lithium battery to the Schneider Electric inverter.

LYNK ACCESS software for 64-bit Windows 10 / 11 is required to configure LYNK II settings for closed-loop CAN communication with Schneider Electric inverters.

When the Schneider Electric inverter is configured in a closed loop with Discover Lithium batteries and the communication breaks between the LYNK II and the Xanbus network, none of the Xanbus devices will display an error or fault warning.

Depending on the mode of operation at the time of a communication fault and given enough time, the inverter-charger and MPPT charge controllers will eventually put the attached battery into an overcharged or fully discharged state. When that occurs, either situation will trigger the Discover Lithium Battery BMS to self-protect and disconnect the battery from the system.

To restart communication, the user must intervene by reconnecting the battery network to LYNK II and LYNK II to the Xanbus network. If reconnection is unsuccessful, the batteries and XW PRO inverter should be restarted, and the system converted to an open-loop configuration before resuming operation. Refer to Schneider Electric Open-Loop Configuration.

NOTICE

If communication between the LYNK II and the Xanbus network is lost for more than 10 seconds, inverters and charge controllers on the Xanbus network will continue to operate with the last battery temperature and charging set points transmitted by LYNK II. Depending on the mode of operation at the time of a communication fault and given enough time, the inverter-charger and solar charge controllers will eventually put the attached battery into an overcharged or fully discharged state. When that occurs, either situation will trigger the Discover Lithium battery’s BMS to self-protect and disconnect the battery from the system.
Discover Lithium batteries and LYNK II do not directly control the inverter’s relay functions, generator starting, or other grid-interactive features. These functions are controlled through the programming of the inverter.