Nibe MODBUS 40 Installer Manual page 15

ENTER THE VALUES
Caution
Only one value can be entered at a time. The
parameter does not have to be included in the
LOG.SET file.
By using the "Write multiple registers" command with
the desired parameter address, a value can be updated,
if the heat pump/indoor module permits it. The values
that can be updated are in ModbusManager. See section
The Modbus command on page
THE MODBUS COMMAND
Function ID Description
0x03 Read holding registers
0x10 Write multiple registers
0x2B Read device identification**
* Two Modbus-registers are used to retrieve 32-bit parameters.
** Returns label (e.g. 'NIBE'), product code (e.g. 'F1245') and software version (e.g. 5539).
MODBUS 40 | GB
15 for more information.
Register address
[40001-65534] included in LOG.SET
[40001-65534] not included in LOG.SET
[40001-65534]
N/A
EXAMPLE OF PARAMETER ADDRESSES
Parameter
Outdoor temperature (BT1)
Supply temperature (BT2)
Return temperature (BT3)
Hot water, top (BT7)
Hot water middle (BT6)
Brine in (BT10)
Brine out (BT11)
Room temperature (BT50)
Degree minutes
Register address
40004
40008
40012
40013
40014
40015
40016
40033
43005
No. of re- Max
gisters timeout
[1-20] 0,5 s
[1-2]* 2,1 s
[1-2]* 2,1 s
N/A 0,5 s
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