KNX Technical Reference Manual
ABB i-Bus
®
KNX Yucus
66
If 1-byte was selected as object type, the communication objects can be connected with
1-byte position objects from blind actuators.
For example: One side of the button could lower the blind to 50% with slats closed 50%,
while the other button side can lower the blind to 80% with slats closed 100%
12.19.3 Extended parameter – Working mode of the buttons
Options 1st button up / 2nd button down
1st button down / 2nd button up
The "Working mode of the buttons" is used to specified whether an operation of the left
or right side of the button will send out a travel up or travel down telegram.
12.19.4 Objects no
Object name Data type Flags
Move blinds / shutter up-
down
1 Bit DPT 1.008 C, T
Move blinds / shutter up-
down
1 byte DPT 5.001 C, T
Stop up-down 1 Bit DPT 1.007 C, T
12.20 Application “2-button value transmitter”
With an actuation of the 1st or 2nd button a telegram with a predefined value is sent out.
The application differentiates here between whether the 1st or 2nd button is actuated.
12.20.1 Common Parameter – Object type
Options 1 bit
1 byte 0 - 100%
1 byte (0 - 255)
2-byte float
2-byte signed
2-byte unsigned
4-byte float
4-byte signed
The "2-button value transmitter" application makes its own "Value switching"
communication object available for the buttons. The bit size of the communication object
is specified via the "Object type" parameter.
For the most diverse applications, the bit size of the communication objects can be
adapted from "1-bit" up to "4-byte unsigned" via "Object type". For every multiple
operation function, a different object size and thus a different function can be selected.
– 1 bit: switching functions (e.g. On/Off, enable/blocked, true/untrue)
– 1 byte 0 - 100%: percentage values (0 = 0%, 255 = 100%)
– 1 byte 0 - 255: arbitrary values from 0 to 255
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