Overview Wallbox go-e Charger



This function block controls a go-e Charger charging station. In automatic mode the charging current is regulated so that only the PV surplus is used for charging.

Communication uses the local HTTP API v2 of the charging station. The device series V3, V4 and Gemini are supported (firmware 051.4 or newer). The local HTTP API must be enabled in the go-e app under Internet > Advanced settings. The charging station should have a fixed IP address in the local network.

Important: The go-e cloud API is not suitable for control, communication is local only. Charging is enabled and disabled via the API key frc (forceState), the charging current via amp, the phase switching via psm.



Inputs

BA
 Operating mode*
 Operating mode:
  • 0=Automatic: surplus control
  • 1=Manual: manual charging with the current value from input Charging current manual.
  • 2=Off: charging disabled.
  • 3=Offline: in this mode no commands are sent to the charging station, the status is still read. This allows parallel operation with the go-e app.
LM
 Charging current manual A
 Charging current setpoint for manual mode in amperes.
PU
 Current surplus*
 PV surplus. The input must not be limited to 0, positive and negative values must be available at the input so that the control can react correctly. The parameter Surplus type defines whether a positive or a negative value means surplus.
PH Phase switching Phase switching of the charging station (API key psm):
  • 0=Automatic: the charging station decides itself.
  • 1=Single phase charging
  • 2=Three phase charging
If the input is not connected, the setting of the charging station is not changed. Phase switching requires a charging station with a switching relay (e.g. go-e Charger Gemini flex, firmware 55.5 or newer).
LE Max. charging energy kWh Maximum charging energy of the current charging session in kWh. When this value is reached, the operating mode is set to Off and the input is reset to 0. With 0 the function is disabled.

Outputs
ER
 Communication error
 Output is 1 if the charging station cannot be reached over the network.
FZ Vehicle status State of the vehicle (API key car):
  • 0 = unknown / internal error
  • 1 = ready, no vehicle connected
  • 2 = vehicle is charging
  • 3 = waiting for vehicle
  • 4 = charging finished, vehicle still connected
  • 5 = error
LL Charging power kW Current charging power in kW.
LA Charging energy current kWh Energy charged since the vehicle was plugged in, in kWh.
LG Charging energy total kWh Total energy charged at this charging station in kWh.
UA Surplus charging active Output is 1 if the surplus control is active.
SS Charging current setpoint A Setpoint that is sent to the charging station.
SI Charging current status A Feedback of the charging current set at the charging station. The feedback can differ from the setpoint if e.g. the value is changed in parallel via the go-e app.
FC Error code charging station Error code of the charging station (API key err): 0 = no error, 1 = RCD AC, 2 = RCD DC, 3 = phase error, 4 = overvoltage, 5 = overcurrent, 6 = diode, 13 = overtemperature, 14 = no communication. For further codes see the go-e API documentation.

Parameters
IP address
 IP address of the charging station in the local network.
Charging current minimum
 Minimum charging current in amperes (go-e Charger: at least 6 A).
Charging current maximum
 Maximum charging current in amperes (up to 32 A depending on device and connection).
Gain P
 Speed of the control, with a higher value the output reacts faster to a change at the input.
Surplus type Defines whether a positive or a negative value at the input Current surplus means surplus.
Start at surplus Threshold in W. This surplus must be exceeded before the charging control starts.
Control on time Time in seconds the surplus must stay above the threshold before the control starts.
Control off time Time in seconds without surplus before the control stops.
Surplus minimum Minimum surplus in W that remains as a reserve during control. E.g. when consumers are switched on for a short time.
Debug If set to On, the sent and received data is written to the log.


See also the common parameters of all function blocks.