Group Volume Control

The volume of all participants within a group can be controlled centrally.

The following functions are available:

• Absolute Volume

• Relative Volume

• Step Dimming

• Start/Stop Dimming

• Mute

If a status group address is configured, the current group volume is transmitted to the KNX bus. This ensures that the status remains up to date even when the volume is changed directly through Sonos®.

Set Absolute Volume (EIS 6 / 0–100%)

Enter the group address used to set the absolute volume of the group.

The volume is transmitted as a percentage value (0–100%, 0.4% resolution).

Absolute Volume Status (EIS 6 / 0–100%)

Enter the group address used to report the current group volume.

The current volume is transmitted as a percentage value (0–100%, 0.4% resolution).

Volume +/- (EIS 1)

Enter the group address used for relative volume control.

Telegram values:

• 1 = Increase volume

• 0 = Decrease volume

The volume changes by the configured step size.

Volume +/- Step Size (1–20)

Define the step size applied for each telegram.

Valid values: 1 to 20.

Step Dimming (EIS 2 – Relative Dimming)

Enter the group address used for relative step dimming.

The following operations are supported:

• Short press: Increase or decrease the volume by the step size configured on the KNX push-button.

• Long press: Continuously increase or decrease the volume using the configured step size.

Start/Stop Dimming (EIS 2 – Relative Dimming)

Enter the group address used for Start/Stop Dimming.

During a long button press, the Smart Home App automatically sends relative volume steps every 220 ms.

Start/Stop Dimming – Dimming Duration (1000–22000 ms)

Defines the time required for a complete dimming cycle from 0% to 100% or from 100% to 0%.

The Smart Home App automatically calculates the required step size.

Examples:

• 22000 ms → 100 steps → 1% per step

• 5000 ms → 23 steps → approximately 4.3% per step

Mute (EIS 1)

Enter the group address used to mute the group.

Telegram values:

• 1 = Muted

• 0 = Unmuted

Mute Status (EIS 1)

Enter the group address used to report the mute status.

Telegram values:

• 1 = Muted

• 0 = Unmuted

Invert Mute

Enable this option to invert the telegram values used for muting.

When enabled, the following values apply:

• 1 = Unmuted

• 0 = Muted

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