Appendix: Modbus (Rtu) Mapping Table - mundoclima MUC-W9 Serie Manual De Instalación Y Usuario

APPENDIX: MODBUS (RTU) MAPPING TABLE

Table 1: Address mapping table of register in fan coil
The following addresses can be used: 03H。04H(read), 06H (write in a single register ), 10H(write in
multiple holding register )
Data content Register address
Running mode
setting (PLC：41602)
Set temperature
setting Ts (PLC：41603)
Fan speed setting
(PLC：41604)
Timer ON time
(PLC：41605)
Timer OFF time
(PLC：41606)
Indoor
temperature T1
(PLC：41607)
Cold water coil
temperature T2-C (PLC：41608)
Hot water coil
temperature T2-H
(PLC：41609)
Lock flag
(PLC：41613)
Pump status
(PLC：41614)
Remark
1601 0x00: Shutdown mode
0x01: air supply mode
0x02: Cooling mode
0x03: Heating mode
0x04: Dehumidification mode
0x05: automatic mode
When setting other parameters, returning to abnormal data
function code. If write this register alone, the defaulted
setting is middle fan speed.
1602 Must be set within the normal temperature range. If the
temperature setting range is exceeded, the exception code
03 will be returned.
Temperature setting range is 17-30 °C
Ts cannot be set in the air supply and dehumidification
modes. Query Ts is 0
1603 0x02：Low speed
0x03：Middle speed
0x04：High speed
0x05：Auto speed
When setting other parameters, returning to abnormal data
function code.
1604 Number 0~96 means: 0h timing to 24h timing
1605 Number 0~96 means: 0h timing to 24h timing
1606 0~240 means -20~100°C
Calculation method: (temperature +5) * 2 + 30
This register can only be read and cannot be written
1607
1608
1612 Bit0 Remote control lock 1: Yes. 0: No
00: Lock off or no lock
Bit1
01: Lock the cooling.
Bit2
10: Lock the heating.
In addition to the above three. The other bits of this byte are
all 0s.
1613 Bit0 drain pump 1: On. 0: off
Except for the 2 bits above, other bits in this byte are 0. This
byte is read only.
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