
1250SM0904R10/09 C-Bus™ Basic Programming
10/2009 C-Bus™ Products Training Course
© 2009 Schneider Electric. All Rights Reserved. 135
Variants
A Variant is a feature of a DLT that allows us to use different Labels for the
same group address. Each button/key on a DLT allows us to use 4 variants
(of a DLT label) for each group address that is used.
Imagine you had a DLT, which was using the 3 button configuration to
control a C-Bus Shutter Relay. All three buttons use the same group
address, but have different key functions (Shutter Open, Shutter Close and
Shutter Stop).
Since a single group address is used across 3 buttons, it does not make
logical sense for all buttons to have the same label. What makes more
sense is to label each button with different label to explain its operation.
The image below shows three buttons on a DLT with the Bedroom 1 group
address, and the 3 button function for control of the C-Bus Shutter Relay.
You will see that:
Button 1 uses Variant 1 that is labelled as Open
Button 2 uses Variant 2 that is labelled as Close
Button 3 uses Variant 3 that is labelled as Stop.
Figure 123 - A DLT using variants
To program a variant, select the variant number (1 to 4) you wish to use,
and press the Edit button (
) to change label for that variant. You will
notice that as you create more label variants for a group address, they will
show up in the Variant drop down box as shown below.
Figure 124 - The variant labels of a group address
Kommentare zu diesen Handbüchern