WALLBOX.md

Wallbox

rscp2mqtt provides the following functions to support E3/DC wallboxes.

Configuration

Add these lines to the .config file:

WALLBOX=true
WB_INDEX=0

If you have more than one wallbox in your environment, you can configure the index numbers of the wallboxes:

WB_INDEX=1
WB_INDEX=2
...
WB_INDEX=7

Topics

The following topics are sent to the MQTT broker:

Device / Tag	MQTT Topic	Values / [Unit]
Wallbox Battery	e3dc/wallbox/charge_battery_before_car	(true/false)
Wallbox Battery	e3dc/wallbox/discharge_battery_to_car	(true/false)
Wallbox Battery	e3dc/wallbox/discharge_battery_until	[%]
Wallbox Battery	e3dc/wallbox/disable_battery_at_mix_mode	(true/false)
Wallbox Suspended *	e3dc/wallbox/suspended	(true/false)
Wallbox Charging *	e3dc/wallbox/charging	(true/false)
Wallbox Min Current *	e3dc/wallbox/min_current	[A]
Wallbox Max Current *	e3dc/wallbox/max_current	[A]
Wallbox Energy L1 *	e3dc/wallbox/energy/L1	[Wh]
Wallbox Energy L2 *	e3dc/wallbox/energy/L2	[Wh]
Wallbox Energy L3 *	e3dc/wallbox/energy/L3	[Wh]
Wallbox Energy Solar *	e3dc/wallbox/energy/solar	[Wh]
Wallbox Energy Solar (midnight) **	e3dc/wallbox/energy_start/solar	[Wh]
Wallbox Energy Solar (today) *	e3dc/wallbox/day/solar	[Wh]
Wallbox Energy Solar Last Charging *	e3dc/wallbox/energy/last_charging/solar	[Wh]
Wallbox Energy Total *	e3dc/wallbox/energy/total	[Wh]
Wallbox Energy Total (midnight) **	e3dc/wallbox/energy_start/total	[Wh]
Wallbox Energy Total (today) *	e3dc/wallbox/energy/day/total	[Wh]
Wallbox Energy Total Last Charging *	e3dc/wallbox/energy/last_charging/total	[Wh]
Wallbox Index *	e3dc/wallbox/index	(0..7)
Wallbox Key State *	e3dc/wallbox/key_state	(true/false)
Wallbox Locked *	e3dc/wallbox/locked	(true/false)
Wallbox Mode *	e3dc/wallbox/sun_mode	(true/false)
Wallbox Phases *	e3dc/wallbox/phases/L1	(true/false)
Wallbox Phases *	e3dc/wallbox/phases/L2	(true/false)
Wallbox Phases *	e3dc/wallbox/phases/L3	(true/false)
Wallbox Phases *	e3dc/wallbox/number_phases
Wallbox Plugged *	e3dc/wallbox/plugged	(true/false)
Wallbox Power All	e3dc/wallbox/solar/power	[W]
Wallbox Power Solar	e3dc/wallbox/total/power	[W]
Wallbox Power L1 *	e3dc/wallbox/power/L1	[W]
Wallbox Power L2 *	e3dc/wallbox/power/L2	[W]
Wallbox Power L3 *	e3dc/wallbox/power/L3	[W]
Wallbox SOC *	e3dc/wallbox/soc	[%]

*) If more than one wallbox exists (maximum 8), topics are extended by the number of the wallbox (1..8), e.g. e3dc/wallbox/1/charging, e3dc/wallbox/2/charging, ... e3dc/wallbox/8/charging

**) The value is required to be able to calculate the daily value.

Wallbox Control

In addition, the following topics can be published to control the wallboxes:

Sun Mode (true/1/false/0)

# if one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/sun_mode" -m true
#
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/sun_mode" -m true # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/sun_mode" -m true # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/sun_mode" -m true # for the eighth wallbox

Suspend charging (true/1/false/0)

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/suspended" -m true
#
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/suspended" -m true # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/suspended" -m true # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/suspended" -m true # for the eighth wallbox

Toggle suspend charging

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/toggle" -m 1
#
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/toggle" -m 1 # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/toggle" -m 1 # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/toggle" -m 1 # for the eighth wallbox

Set min current (6..32 A)

mosquitto_pub -h localhost -p 1883 -t"e3dc/set/wallbox/min_current" -m 6
# 
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/min_current" -m 6 # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/min_current" -m 6 # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/min_current" -m 6 # for the eighth wallbox

Set max current (6..32 A)

mosquitto_pub -h localhost -p 1883 -t"e3dc/set/wallbox/max_current" -m 20
#
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/max_current" -m 20 # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/max_current" -m 20 # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/max_current" -m 20 # for the eighth wallbox

Set number of phases (1/3)

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/number_phases" -m 1
#
# or if more than one wallbox is available
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/1/number_phases" -m 1 # for the first wallbox
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/2/number_phases" -m 1 # for the second wallbox
# ...
mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/8/number_phases" -m 1 # for the eighth wallbox

The following settings apply to all available wallboxes:

Set battery to car mode (true/1/false/0)

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/discharge_battery_to_car" -m true

Set battery before car mode (true/1/false/0)

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/charge_battery_before_car" -m true

There is a dependency of e3dc/set/wallbox/charge_battery_before_car to e3dc/set/wallbox/discharge_battery_to_car: e3dc/set/wallbox/charge_battery_before_car can only be set if e3dc/set/wallbox/discharge_battery_to_car is false (issue #21).

Set discharge battery until [%]

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/discharge_battery_until" -m 80

Set disable charging battery at mix mode (true/1/false/0)

mosquitto_pub -h localhost -p 1883 -t "e3dc/set/wallbox/disable_battery_at_mix_mode" -m true

If the MQTT broker runs on another server, please use its name instead of localhost and change the port if it is different. Please adjust the calls if you use a different prefix.