Vallox Exxeo, Manual

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MANU
AL
Holding register Description R/RW Datatype Unit Range Default Notes
1001 Control mode R/W U8 0: Constant speed
1: Constant pressure
2: Constant Flow
0
1002 Constant pressure setpoint low R/W I16 Pa -2500…0 (modbus) -100
1003 Constant pressure setpoint high R/W I16 Pa -2500…0 (modbus) -300
1004 Constant flow setpoint low R/W I16 l/s 10….5000 100
1005 Constant flow setpoint high R/W I16 l/s 10….5000 500
1006 Constant speed setpoint low R/W I16 % 0…100 20
1007 Constant speed setpoint high R/W I16 % 0…100 100
1008 Outdoor temperature compensation enabled R/W U8 0/1 0
1009 K value R/W I16 K*10 10…9999 160
1010 Outdoor temp comp enabled R/W U8 0/1 0
1011 Outdoor air compensation start R/W I16 c -10…10 5
1012 Outdoor air compensation stop R/W I16 c -30…-10 -20
1013 Outdoor air temperature compensation drop R/W I16 % 5….90 30
1014 Ext control mode R/W U8 2: 0 - 10V in
1: L/H
0: Modbus
1
1015 Measured pressure value R I16 Pa -6000…6000
1016 Measured flow value R I16 l/s 0…5000
1017 Motor RPM value R I16 rpm 0…4000
1018 External input 0-10VDC value R I16 mV 0…10300
1019 External input 1 R U8 0/1
1020 External input 2 R U8 0/1
1021 NTC 1 R I16 *10 ('c)
1022 NTC 2 R I16 *10 ('c)
1023 Alarm R U8 0…255 Active alarms in
bitfield format.
0 = no alarms
1 = er01
2 = er02
3 = er01 + er02
…...
1024 Status R U8
1025 Modbus address R U8
1026 MODBUS_BAUD_X100 R I16 In bauds now:
9600,19200, 38400
19200
1027 Modbus databit R U8 8…8 8
1028 Modbus parity R U8 0: none
1: even
2: odd
1
1029 Modbus stop bits R U8 1….2 1
1030 PID P-value R/W I16 2…9999 20
1031 PID I-value R/W I16 5….90 5
1032 Fan status mode R/W U8 0: Tacho
1: Status relay
1
1033 Modbus control state R/W U8 0: Off
1: L
2: H
0
MODBUS REGISTERS