Data Type 1 Bit; Data Type 4 Bit; Data Type 1 Byte - Crestron CGEIB-IP Operations & Installation Manual

KNX Control Interface
18  KNX/EIB Control Interface: Crestron CGEIB-IP

Data type 1 bit

The most used data types are binary switch functions (on/off). They are used for a lot
of different purposes like switching lamps, triggering presets, activate alarm
functions...
When the inputs for "On" or "Off" go high the required commands are triggered.
The "Status_Is_On" and "Status_Is_Off" will be triggered accordingly to represent
the status of the data type.

Data type 4 bit

The dimming data-type is a 4-bit type and is commonly used to control dimmers.
The 4 bit module requires the usual address parameters. Dimming speed is set
standard to 1 although the KNX has 7 different dimming speeds. Speed 1 (slow) is
standard as this proved to be sufficient. The feedback shows the dimming up and
dimming down activity only, not the light level.
The feedback is independent from the dimming speed. Even when an KNX button
panel controls the same dimmer with a different speed the feedback will still be
produced.

Data type 1 Byte

The 1 Byte values are being used for all sorts of things with KNX, however in most
of the cases it is used for controlling dimmer with absolute values (e.g. level 70%).
Therefore the KNX 1Byte module requires an analog value on its input, it also gives
out an analog value as feedback:
Crestron CGEIB-IP
Operations & Installation Guide – DOC. 0009