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▪
DPT 09
– float – 2 bytes
Group object
Type KNX
Size
Direction
GO 1 Channel 1: … – Float – 2 bytes
9.001
2 bytes
…
▪
DPT 14
– float – 4 bytes
Group object
Type KNX
Size
Direction
GO 1
Channel 1: … – Float – 4 bytes
14.000
4 bytes
…
Description (30 characters)
Any name can be assigned to the channel. However, this should be unique and meaningful, which
makes it easier to work with the associated group objects later, since the name assigned is
displayed there as a description. If no name is assigned, the group objects are designated as
“Channel N: ...”.
Direction
The KNX specific communication direction is set here:
▪
KNX to Modbus
(group object is input)
Group object
Type KNX
Size
Direction
GO 1 Channel 1: Input
– …
Depending on DPT
From KNX
▪
Modbus to KNX
(group object is output)
Group object
Type KNX
Size
Direction
GO 1 Channel 1: Output
– …
Depending on DPT
To KNX
Send condition
If the group object is defined as an output, the time at which the object sends the value to the KNX
bus is configured here. The following options are available:
▪
Read only
Object sends only on read requests
▪
On change
Object sends on value change
▪
Cyclic
Object sends after cycle time
▪
Cyclic and on change
Object transmits after cycle time and on value change
Cycle time
The time for send condition cyclic.
Type
This parameter defines the function of the channel as well as the size of the Modbus register used.
