Channel Function - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Parameters
7.4.1

Channel function

Options:
The function of the channel is set using this parameter. It can be used with the controller activated and
optional communication with an analog room control unit, or as a pure actuator channel for controlling
a heating or a cooling application (floor heating, radiator heating or cooling ceiling). In the latter case,
the control values for actuating the outputs must be sent by an external controller to the device.
•
Controller channel: In this mode the channel operates independently – based only on the states
(e.g. temperature) measured on the inputs (or received via KNX) and the setpoints/operating mode
changeovers received via KNX. The necessary control values for the outputs are calculated
independently from this information. The Temperature controller and Setpoint manager parameter
windows, as well as group objects for the master/slave communication are activated. Here the
channel acts as a master.
•
Actuator channel: In this mode the channel acts as a pure actuator. The controller function must be
undertaken by an external device and the control values sent to the actuator via KNX.
The Temperature controller and Setpoint manager parameter windows are correspondingly
deactivated.
46 2CDC508220D0211 Rev. A | VC/S 4.x.1
Controller channel
Actuator channel