Nibe MODBUS 40 Installateurhandbuch Seite 14

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Communication
NOTE
Software LogManager and NIBE Applications
should be replaced with ModbusManager.
ModbusManager can be downloaded via
www.nibe.se/kommunikation.
Read the values
There are two ways of reading the values from the heat
pump/indoor module, automatically or manually.
Automatic reading: can retrieve up to 20 predefined
parameters at the same time.
Manual reading: takes longer and only one value at
a time can be retrieved.
Automatic reading
Caution
Maximum 20 parameters defined in the
LOG.SET file can be used by MODBUS 40 (cor-
responds to 20x16-bits Modbus-register). If
more parameters are selected, the first 20
parameters are used.
A small number of parameters are 32-bit, and
therefore take up two registry locations, which
means that fewer parameters can be read.
1. Create a LOG.SET file that contains the predefined
values that are to be read out. The file is created
in ModbusManager. See section "Create a log set-
tings file in ModbusManager" for instructions.
2. Save LOG.SET to a USB-memory.
3. Insert the USB-memory into the heat pump's/in-
door module's display unit.
4. Enter menu USB.
5. Enter menu "logging".
6. Tick "activated".
7. Remove the USB-memory.
The heat pump/indoor module will now update the
values for all defined parameters twice a second.
Retrieve the values for the Modbus-client by using the
"Read holding registers" command with the desired
parameter addresses. Use ModbusManager, see
LOG.SET in a text editor or see the examples list on
page 15 to see which parameter address a value has.
See section The Modbus command on page 15 for
further information about different commands.
Create a log settings file in ModbusManager
First install the software ModbusManager on your
computer. The software can be downloaded from
www.nibe.se/kommunikation
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1. First select heat pump/indoor module model under
menu "Models".
2. You can scroll between the available parameters
for the selected heat pump/indoor module in the
left-hand column.
Information about the selected parameter is dis-
played in the box under the list.
The list of parameters can be filtered by optional
key words by selecting "File" - "Apply Filter".
Make sure to order the list logically. For example:
EB 100 EP14 BT10 Brine in 40015
EB 100 EP14 BT11 Brine in 40016
EB 100 EP15 BT10 Brine in 40100
EB 100 EP15 BT11 Brine in 40085
Check which value you are reading when using the
list.
3. Mark a parameter and click on the right-hand ar-
row to transfer it to the right-hand column.
4. The right-hand column shows which parameters
will be logged.
Transfer all parameters you want to log. Use the
left arrow to change selection.
5. When you are satisfied with the list, click "Save
configuration...".
A dialogue box appears that asks where you want
to save your log settings file.
Save the file on the computer or directly on a USB
memory.
Select "Export to file" under the menu "File" if you
want to save all heat pump parameters in a csv file.
Caution
The file name must be LOG.SET for the heat
pump/indoor module to read the file.
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