General Input

The unit is designed to filter all input signals to reduce susceptibility to impulse and mains noise. This means that only input signals up to 10Hz can be followed by the unit.

The unit obtains power from a C-Bus Network (to power the C-Bus side of the unit), and a 24Vac input (via an external power pack) is also used to power the measurement processing and to supply power for external sensors.

If required, the unit allows an operator to broadcast the  measurement for each Channel on a C-Bus network after scaling and transformation. The unit does not broadcast more frequently than 2 times per second in any case.

If enabled, the unit is able to initiate a message on C-Bus in response to a user-defi ned change in value of the input. The unit is also able to initiate a message on C-Bus in response to an appropriate received CBus message, if enabled by the user.

The unit can be set up to include eight ‘Decision Thresholds’ per Channel and separate hysteresis values per Channel (one value per channel). The unit then allows an operator to assign an ‘Action’ to each Decision Threshold in each Channel. The action will apply when the input level exceeds the Decision Threshold plus the set hysteresis value. An ‘OFF Action’ will apply when the input is less than the Decision Threshold minus the hysteresis value. The unit allows an operator to assign a C-Bus message to each of the defi ned Decision Threshold.

The unit is also able to pass ‘direct level’ information from an analogue input to a C-Bus network level command. For example, a variable resistance (eg, a potentiometer) input can be used to control the dimming level of a C-Bus lighting group address.