Victron energy Venus GX Manual page 54

Color Control GX manual
Internal
The internal charge algorithm (bulk → absorption → float → re-bulk), and the configured charge
voltages are active.
Inverter/charger indicated charge state: bulk, absorption, float, and-so-forth.
MPPT indicated charge state: bulk, absorption, float and-so-forth. (firmware version v1.42 onwards.
Earlier versions have a bug that make the MPPT say "Ext. Control" when it is only being current
limited; its internal charge algorithm still active.
Inverter/charger (applies to MPPTs only)
The MPPTs internal charge algorithm is disabled; instead it's being controlled by a charge voltage
setpoint coming from the inverter/charger.
MPPT indicated charge state: Ext. control.
Battery
The internal charge algorithm is disabled; and instead, the device is being controlled by the battery.
Inverter/charger indicated charge state: Bulk when in current controlled mode, Absorption when in
voltage controlled mode. Never Float; even though currents might be low / battery might be full.
MPPT indicated charge state: Ext. control.
4.4 DVCC features for all systems
These features apply to all types of systems when DVCC is enabled: with or without ESS Assistant,
and with lead or other normal batteries as well as when an intelligent CAN-bus BMS connected battery
is installed:
4.4.1 Limit charge current
This is a user-configurable maximum charge current setting. It works across the whole system. MPPT
Solar Chargers are automatically prioritized over the mains/generator.