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Service
ModBus-register W3 applies to software after 0.76
Holding
register
16 bit integer register R/W
Modbus Name Min/Max Remarks Default
4x0037 Normal flow EA 0/100 (%) 50
4x0038 Economy flow SA 0 /100 (%) 20
4x0039 Economy flow EA 0/100 (%) 20
4x0040 Night cool flow SA 50 /100 (%) 80
4x0041 Night cool flow EA 50 /100 (%) 80
4x0042 Boost flow SA 0/100 (%) 90
4x0043 Boost flow EA 0/100 (%) 90
4x0044 Not used
4x0045 Not used
4x0046 Stand-by flow EA 0/100 (%) 10
4x0047 Stand-by flow EA 0/100 (%) 10
4x0048 P term Heat 10/10000 Scale 1:100 5000
4x0049 I term Heat 10/10000 Scale 1:100 10
4x0050 P term Cool 10/10000 Scale 1:100 5000
4x0051 I term Cool 10/10000 Scale 1:100 10
4x0052 P term Change over 10/10000 Scale 1:100 5000
4x0053 I term Change over 10/10000 Scale 1:100 50
4x0054 SA 0% value 0/5000 0
4x0055 SA 100% value 5000/10000 10000
4x0056 EA 0% value 0/5000 0
4x0057 EA 100% value 5000/10000 10000
4x0058 Not used
4x0059 Not used
4x0060 Not used
4x0061 Not used
4x0062 Not used
4x0063 Manual Temp 0-50 (degC) Only used in Manual state
4x0064 Manual SA flow 0/100 (%) Only used in Manual state
4x0065 Manual EA flow 0/100 (%) Only used in Manual state
4x0066 Not used
4x0067 Not used
4x0068 Not used
4x0069 Copy of Coil Status 1-16 0/65535 "Bit0=0x0001
Bit1=0x0002
Bit2=0x0003
Bit3=0x0004
Bit4=0x0005
…
Bit15=0x0016"