Ideal Clima COMFOSPLIT IKARO - CHANGING MODBUS ADDRESS; RESETTING MODBUS ADDRESS

Comfosplit IKARO HW – User and Installer manual EN
© Ideal Clima - Page 49 of 68
The answer is as follows:
0F
03
06
00 01
00 01
00 06
81 17
device Address
Reading Function
Byte in the
answer (6)
Device status (1
= on)
Operating mode
(1 = Cooling.)
Fan speed (6 = auto)
CRC
Example for writing holding register
In this example, we writing the holding registers from 28.301to 28,303 of a device with default address.
0F
10
6E 8D
00 03
06
00 01
00 01
00 02
41 34
device
Address
Writing
Function
Address of the
first register
Number of
registers to
be written
Count bytes
of data
Device
status (1 =
on)
Modes of
Operation (1
= cooling)
ventilation speed
(minimum = 2)
CRC
The answer is:
0F
10
6E 8D
00 03
0D 05
device Address
Writing Function
Address of the first register
Number of holding registers
CRC
Change the Modbus address of the device
The Modbus address Ikaro is located at 28321 registry and can be changed by a write query 0x10 (write
multiple registers). However, to prevent accidental overwriting address, this can be changed only if you first
apply a jumper between the LOW contact and the COM contact of the Ikaro HW terminal block.
On completion of address change, the jumper must be removed.
Modbus address reset
To reset the Modus address of the device to default value, it is necessary to simultaneously close all the
contacts HIGH - LOW MED – COM of the thermostat terminal block and let them closed for at least 10 seconds.
After this period of time, remove all jumpers, the Modbus address of the unit is reset to default value.