ABB i-bus KNX, Product Manual, Page: 210 / 264

ABB i-bus
®
KNX
Commissioning
208 2CDC508134D0202 | FCA/S 1.x.x.1
No. Functionality communication object name Data type Flags
4 Status byte General 1 byte
none DPT
C, R, T
The status byte reflects the current state of the input.
Bit sequence 76543210
Bit 7: Heating or cooling mode (only in fan coil valves)
0:
1:
Cooling mode
Heating mode
Bit 6: Not assigned
Always 0
Bit 5: Not assigned
Always 0
Bit 4: Status of internal calibration
0:
1:
Calibration completed
Calibration running
Bit 3: Communication
0:
1:
Communication is OK
Communication is disrupted
Note
In the event of a fault "Internal communication fault", no values are sent if the option After request is
selected
Bit 2: Status Input c Measured value out of range
0:
1:
in range
out of range
Bit 1: Status Input b Measured value out of range
0:
1:
in range
out of range
Bit 0: Status Input a Measured value out of range
0:
1:
in range
out of range
If the option Yes has been selected for the parameter Enable communication object "Request status values" 1-bit , the
communication objects no. 4, 18, 28, 38 and 48 are sent immediately. For all other status objects, e.g. for the fan, it is also
possible to use parameters to set the time when each of them is to be sent to the bus.
For further information see: Status byte General , p. 256