Daikin EKMBPP1, Installation Manual

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6 Configuration
Installation manual
30
EKMBPP1
Modbus adapter
4P720139-1B – 2023.09
Input register
Name Range Notes
Unit 1 … Unit 16
I0131
…
I1631
Coil In Temperature
(a)
°C × 100 Coil inlet temperature
I0132
…
I1632
Coil Out Temperature
(a)
°C × 100 Coil outlet temperature
(a)
Values are only available when the EKMBPP1 is operating in P1P2
Main mode.
The following table outlines the logic to determine the register
addresses for every unit (1~16). The second and third digits indicate the
indoor unit number.
Unit 1 input
register Unit 1 address … Unit 16 input register Unit 16 address
I0120
30121 …
I1620
31621
I0121
30122 …
I1621
31622
I0122
30123 …
I1622
31623
I0123
² 30124 …
I1623
31624
I0124
30125 …
I1624
31625
I0130
30131 …
I1630
31631
I0131
30132 …
I1631
31632
I0132
30133 …
I1632
31633
6.5.4 Error codes
The error codes generated by the EKMBPP1 are encoded using a
standard table to allow standard Daikin error codes to be generated
from the readback value.
Code value Meaning
0 Waiting for data
255 No error
14384 (80) Group error, timeout, on no units found
14388 (84) Unit missing, reported if unit data previously observed
All others Default unit error codes
Error codes that are returned from the Modbus input register are 16 bit
values. The error code is encoded in the 16 bit value by encoding the
pair of 8 bit error characters in the high and low byte parts of the 16 bit
value. Each of the 8 bit values represents an ASCII character.
Combined, the two ASCII characters form the default unit error code.
For more information about unit errors, see the installer reference guide
of the unit.