2.2.85. Scene Activation Command Class, version 1¶

The Scene Activation Command Class used for launching scenes in a number of actuator nodes e.g. another scene-controlling unit, a multilevel switch, a binary switch etc.

2.2.85.1. Compatibility Considerations¶

A node supporting this Command Class MUST also support the Scene Actuator Configuration Command Class.

This command class requires an initial configuration of the scenes to be launched by the Scene Actuator Configuration Set.

Since a common identifier that is sent out, multicast addressing may be used. Multicast addressing may eliminate the potential popping effect which could be the result if individual Set Commands were send out to a large number of nodes distributed over a vast area. The multicast transmission MUST be followed by individual singlecast transmissions to ensure all the nodes have received the command.

2.2.85.2. Scene Activation Set Command¶

This command is used to activate the setting associated to the scene ID.

7	6	5	4	3	2	1	0
Command Class = COMMAND_CLASS_SCENE_ACTIVATION (0x2B)
Command = SCENE_ACTIVATION_SET (0x01)
Scene ID
Dimming Duration

Scene ID (8 bits)

This field is used to specify the Scene ID that the receiving node MUST activate

This field MUST be in the range 1..255.

Dimming Duration (8 bits)

This field MUST specify the time that the transition from the current level to the target level (indicated by the Scene ID) should take.

Supporting actuator nodes without duration capabilities MUST ignore this field.

Supporting actuator nodes with a duration capabilities SHOULD respect the indicated dimming duration to reach the target level.

This field MUST be encoded according to Table 2.496.

Table 2.496 Scene Activation Set::Dimming Duration encoding¶
Value	Description
0x00	Instantly
0x01..0x7F	Obtain dimming durations from 1 second (0x01) to 127 seconds (0x7F) in 1-second resolution
0x80..0xFE	Specify dimming durations from 1 minute (0x80) to 127 minutes (0xFE) in 1-minute resolution.
0xFF	Specify dimming duration configured by the Scene Actuator Configuration Set and Scene Controller Configuration Set Command depending on device used.