27
ABB i-bus
®
KNX
Project design and programming
82
Set Brightness Value
Channels A … H
8 bit (EIS 6)
DPT 5.001
C, W
Channels A ... H Set Brightness Value [EIS 6; 1-byte value]:
The brightness value for all
the channels is received via this object (central control). Telegrams which are received via this
communication object (CO) take priority over commands which are received by the specific
channel objects. If the central control is switched off via the CO “Central Control On / Off”
(Off), this setting has temporary priority i.e. the central control can be ended by an individual
object at any time. If the central control is switched on (On) via the CO “Central Control On /
Off”, the priority of the central control is retained until the central control is set to “Off” again.
This means that the communication for the individual control of the channels is inactive and
any received telegrams do not have a function. If the object “Burn in Lamps” is set to “1”, the
lamps of the channel can only be operated at 0% or 100% during the burn-in time.
The minimum and maximum dimming values set per channel in the “Channel X” parameter
window retain their validity. Brightness values which lie above or below the maximum or
minimum values selected for the channel are not set. The parameterised maximum or
minimum value is set instead. Different maximum or minimum brightness values can thus be
set in the different channels when dimming centrally.
83
Central Control On / Off
Channels A...H
1 bit (EIS 1)
DPT 1.010
C, R, W, U
Channels A...H Central Control On / Off [EIS 1; 1-bit switching]:
The central control is
switched on or off via this object. If the object “Central Control On / Off” equals “1” (On),
the other channel objects for object control are inactive i.e. individual telegrams which are
received have no function. The central control remains switched on until the object “Central
Control On / OFF” is reset to “0” (Off). All the channels are thereby enabled. The channel
values set through the central control (brightness/switching states) are retained and can be
modified individually at any time by telegrams of any of the objects. If the object “Burn in
Lamps” (see Channel X objects) is set to “1”, the lamps of the channel can only be operated
at 0% or 100% during the burn-in time.
Telegram value
“1”: On
“0”:
Off
Note: If the central control is active, channel-dependent commands (channel X, object no. 0
to 9) will be ignored. This also includes the burn-in function, i.e. if the central control is active,
the burn-in function cannot be activated or deactivated for a channel with the object “channel
x lamps burn-in“. The burn-in time and the function, however, remain active in the case of the
central commands.
Continuation Table 5: Communication objects “Channels A...H”