Marstek Venus D

Supported features

Battery control: External control of home battery charging and discharging via evcc.

Usage areas

Solar production
Battery

Parameters

Modbus

Name	Description	Value	Level
`id`	Modbus ID Default: `1`	int	required
`device`	Device name USB-RS485 adapter Example: `/dev/ttyUSB0`		required
`baudrate`	Baudrate Default: `9600`		required
`comset`	ComSet Communication parameter for the adapter Default: `8N1`		required
`host`	IP address or hostname Example: `192.0.2.2`		required
`port`	Port Default: `502`	int	required
`capacity` [kWh]	Battery capacity Venus A 2.12 kWh, Venus D 2.56 kWh per base unit and per extension Example: `50`		optional
`maxchargepower` [W]	Maximum charge power For forced charging of the battery. Venus A 1200 W, Venus D 2200 W		optional
`maxdischargepower` [W]	Maximum discharge power Highest power the battery system can discharge with. The optimizer plans with discharging up to this power. Smart mode assumes the battery supplies at most this power to vehicle charging.		optional
`minsoc` [%]	Minimum charge Lower limit as configured on the battery system. Used by optimizer. Default: `11` Example: `25`		optional
`maxsoc` [%]	Maximum charge Upper limit as configured on the battery system. Used by optimizer and, on some devices, for grid charging. Default: `100` Example: `95`		optional
`work_mode_normal`	Work mode for Normal state 0=manual, 1=anti-feed, 2=trade mode. Default: `1`		advanced

Configuration example for evcc.yaml

If you don't want to configure via the UI, you can alternatively use this YAML block.

Solar productionBattery

meters:
    - name: my_pv
      type: template
      template: marstek-venus-a
      usage: pv

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 1
      device: /dev/ttyUSB0 # USB-RS485 Adapter Adresse
      baudrate: 115200 # Prüfe die Geräteeinstellungen, typische Werte sind 9600, 19200, 38400, 57600, 115200
      comset: "8N1" # Kommunikationsparameter für den Adapter

      # RS485 via TCP/IP (Modbus RTU)
      modbus: rs485tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port
      work_mode_normal: 1 # Work mode for Normal state, 0=manual, 1=anti-feed, 2=trade mode. (optional)

meters:
    - name: my_battery
      type: template
      template: marstek-venus-a
      usage: battery

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 1
      device: /dev/ttyUSB0 # USB-RS485 Adapter Adresse
      baudrate: 115200 # Prüfe die Geräteeinstellungen, typische Werte sind 9600, 19200, 38400, 57600, 115200
      comset: "8N1" # Kommunikationsparameter für den Adapter

      # RS485 via TCP/IP (Modbus RTU)
      modbus: rs485tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port
      capacity: 50 # Battery capacity (kWh), Venus A 2.12 kWh, Venus D 2.56 kWh per base unit and per extension
      maxchargepower: # Maximum charge power (W), For forced charging of the battery. Venus A 1200 W, Venus D 2200 W
      maxdischargepower: # Maximum discharge power (W), Highest power the battery system can discharge with. The optimizer plans with discharging up to this power. Smart mode assumes the battery supplies at most this power to vehicle charging.
      minsoc: 11 # Minimum charge (%), Lower limit as configured on the battery system. Used by optimizer. (optional)
      maxsoc: 100 # Maximum charge (%), Upper limit as configured on the battery system. Used by optimizer and, on some devices, for grid charging. (optional)
      work_mode_normal: 1 # Work mode for Normal state, 0=manual, 1=anti-feed, 2=trade mode. (optional)