Update time segment

The Growatt Server: Update time segment action configures one of the nine time segments on a supported MIN inverter. Each segment combines a battery operation mode, a time range, and an enabled state, so you can automate when your battery charges, discharges, or prioritizes your home loads.

Using this action from the user interface

If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.

To update a time segment from an automation or a script:

1. Go to Settings > Automations & scenes.
2. Open an existing automation or script, or select Create automation > Create new automation.
3. If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
4. In the Then do section, select Add action.
5. From the search box, search for and select Growatt Server: Update time segment.
6. Choose the Device, then set the segment values you want.
7. Select Save.

This action does not support targets. In the UI, you are not prompted to choose an area, device, entity, or label.

Options in the UI

Using this action in YAML

If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required. For how an automation or a script is built in YAML, refer to Automations in YAML and Scripts.

In YAML, refer to this action as growatt_server.update_time_segment. A basic example looks like this:

action: growatt_server.update_time_segment
data:
  device_id: a1b2c3d4e5f6
  segment_id: 1
  batt_mode: battery_first
  start_time: "00:00"
  end_time: "06:00"
  enabled: true

This charges the battery between midnight and 6 AM using the first time segment.

Options in YAML

Good to know

The battery mode controls when and why discharging happens. The actual discharge rate is controlled by the Discharge power number entity (0 to 100%).

Try it yourself

Ready to test this? Open Settings > Tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.

Still stuck?

To test the action on its own, run it in the automation editor with Run action, and check the message that it shows. To see what the action did when the automation ran, open the trace of that run. For details, refer to Testing automations. For common problems and their solutions, refer to Troubleshooting automations.

If that doesn’t help, the Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.

Related actions

Explore related actions:

• Read time segments: Reads all battery time segments from a supported MIN inverter.