Measurement Application

The Measurement Application is used for broadcasting values of physical parameters monitored by C-Bus devices.

The measured quantities can be displayed on devices with graphical user interfaces such eDLTs or Automation Controllers, and can be used as inputs to automation in SpaceLogic C-Bus Automation Controllers.

Measurement Application message contains the following information:

A device ID to identify the unit which broadcast the message.
The channel number, which is used to differentiate between multiple measurements that the single device may produce.
The measured value.
The units of the measured value (example: Volts, Amperes, Degrees).

The C-Bus Digital Dimmers provide measurements of the following values via the Measurement Application which can be useful for monitoring the health of the unit, or for detecting abnormal conditions:

Channel Number	Quantity	Units
0-7	Channel 1 — Channel 8 Lamp Running Time	Hours
128-135	Channel 1 — Channel 8 Operating Temperature	°C
252	Power Supply Load Current	Amperes
253	C-Bus Voltage	Volts
254	Unit Operating Temperature	°C

Measurements can be configured to broadcast periodically, by setting the measurement periodic broadcast parameter. This can be set to an interval between 1 and 254 minutes.

NOTE: If periodic broadcast is not required, a Trigger Group can be configured to request either individual channels (by using the Action Selector corresponding to the channel requested), or an Action Selector of 255 to request all channels to be updated. This can also be used in conjunction with a regular broadcast.

In addition, individual quantities may be excluded from the regular broadcast by de-selecting them in the Measurement Regular Broadcast options parameter.

The Lamp Running Time measurements can be reset to zero by configuring a Trigger Group and sending a trigger event on that Trigger Group with the action selector set to the channel which is to be cleared, or an Action Selector of 255 to clear all channels simultaneously.