Function IDs

Each device has a function ID programmed into its chip. The function ID has the capabilities of the chip coded into it.

1111 11
5432 109876 543210 
xxxx.xxxxxx.xxxxxx
Bits 15..12 (dS-Class), Bits 11..6 (dS-Subclass), Bits 5..0 (Functionmodule) 

dS-Class

Decimal Binary Description
1 0001 Light
2 0010 Shadow
3 0011 Climate
4 0100 Audio
5 0101 Video
6 0110 Security
7 0111 Access
8 1000 Joker

dS Subclass

Decimal Binary Subclass Description
0 000000 Revision 1.00
4 000100 Revision 1.05

Subclass dS-Standard R1.00

Definition of Functionmodule bits:

Bits Description Comment
5..4 Output 0 = No output available
1 = Output is a switch
2 = Output is a dimmer
3 = undefined
3 Local-Button The first button is a local-button
2..0 Buttons 0 = 1-Way
1 = 2-Way
2 = 2x1-Way
3 = 4-Way
4 = 4x1-Way
5 = 2x2-Way
6 =
7 = No buttons

Subclass dS-Standard R1.05

Definition of Functionmodule bits:

Bits Description Comment
5 Variable Ramp Time Output ramp time is variable
4 Output available Output function available
3 Additional functions/hardware Additional non-standard functions available, like sensor or binary inputs
2 Additional group info Additional group bits 0-15 and 48-63 in use. Device can be member of any group of 1-15 and 48-55
1..0 Buttons 3 = 4 buttons
2 = 2 buttons
1 = 1 button
0 = No button