The ESS manual says that for controlling the MPPT with VE.Can port through ESS the only requirement is: MPPT with VE.Can port No special configuration is necessary. Make sure the Device instance is configured to 0 (the default). MPPTs in the VE.Can network configured to a different Device instance …

Try switch on dvcc. See if the mppts switch to external control. Hi LX! Thanks! As you proposed I enabled and configured DVCC. All works now! The manual should make a reference to this fact.

Victron MPPT is not controlled by Multiplus under ESS

Victron MPPT is not controlled by Multiplus under ESS