Table of Contents
Advertisement
ABB i-bus
EIB / KNX
®
5.3
Use of 8-bit values
5.3.1
Dim actuator function
Planning and application
With the use of 8-bit values the parameters "Input value for 0 %", "Input
value for 100 %" and "Factor of the input value" are fixed and cannot
be modified. Thus the communication objects "Input value" and "Status"
correspond with data point type 5.001.
If the input object format is set to "8-bit", the ETS indicates an additional
1-bit communication object and a 4-bit communication object for this
output. The output enables control by every switch sensor with a dimming
function with these objects.
The output can be switched on or off via the "Switching" 1-bit object.
The output value assumes 100 % when switched on.
The output can be dimmed conform to data point type 3.007 via the 4-bit
object. The dimming speed depends on both parameters "Time between
2 of 255 dimming steps, Basis" and "Time between 2 of 255 dimming
steps, Factor". The preset value for the range from 0 % to 100 % is about
5 seconds. The shortest time is about 2.5 seconds. The longest time is
about 65,000 seconds (which is 1083 minutes or about 18 hours).
Depending on the parameter "Response on reception of value", the output
will assume a new value, which it receives via the 1-byte object immediately
("jump to"), or uses the same dimming speed as control via the 4-bit object
("dim to").
If the output receives a new value to which it should dim, the status object
will send a new value directly after receipt of the incoming telegram. When
controlled via the 4-bit object the status object sends the new value after
completion of the dimming process.
23
Advertisement
Table of Contents
