Channel Functions

Each block of outputs is assigned one of four functions in the ETS Channel function window. The functions can be mixed freely across the device, within the available outputs: up to 8 switch, 4 shutter AC, 2 shutter DC, 2 fan, or 2 valve channels.

Switch

Switches loads such as lighting, sockets and heating. Each switch uses one relay.

• Time functions: on/off delay, flashing, and staircase lighting (turns off automatically after a set time)
• Logic: AND, OR, XOR and GATE, with up to three inputs
• Scenes: 8 scenes, recalled or stored via a 1-byte object
• Forced operation: forces a channel on or off with the highest priority
• Operation-hours counter and status feedback
• Defined relay position on bus voltage failure and recovery

Shutter (AC/DC)

Drives motorised blinds, awnings, roller blinds and vertical blinds. An AC channel uses two relays (up/down), a DC channel four. Two working modes are available: Venetian Blind and Shutter.

• Move up/down, stop, and move to a position of 0–100 %
• Louvre adjustment to 0–100 % (Venetian Blind mode)
• 8 scenes, automatic sun protection, and a safety function
• Position and mode status feedback

Fan

Controls a single-phase fan with up to three speed levels, in step-switch or steering-switch mode.

• Automatic: runs the speed that matches a control value from the bus, with a settable minimum run time
• Normal: manual control, for example from a room panel
• Forced operation keeps the fan within an allowed speed range, with the highest priority
• Start-up characteristics (multi-level) or on/off delay and minimum run time (single-level), plus status feedback

Valve

Controls heating and cooling valves in 2-pipe or 4-pipe systems; heating and cooling use separate relay outputs. Three control types are available:

• Continuous (3-point): opens the valve to any position according to the control value; for 3-wire valves
• PWM: cycles the valve fully open or closed based on the control value and PWM cycle; for 2-wire valves
• 2-point: switches the valve fully open or closed on a 1-bit control value; for temperature-difference control

Continuous valves also support characteristic-curve correction and automatic adjustment. All types support enable/disable, position status, and manual or automatic valve cleaning.