Swegon 20210201, Technical Manual, Page: 67 / 72

Modbus register
The information listed below applies when the CONDUCTOR W4 is connected to a so-called
ModBus system.
Conductor W4 BMS, applies to software from 1.48
Default values from parameter file
Coil Status Discrete Output (1 bit) R/W
Modbus Name Min/Max Remarks Default
0x0001 Not used
0x0002 SA Emergency action 0/1 0
0x0003 EA Emergency action 0/1 0
0x0004 Not used
0x0005 Economy mode 0/1 0=Unavailable, 1= Available 1
0x0006 Not used
0x0007 Not used
0x0008 Restart device 0/1 1=Force SW-boot 0
Input Status Discrete Input (1 bit) Read only
Modbus Name Min/Max Remarks Default
1x0001 Condensation 0/1
1x0002 Relay state 0/1
1x0003 Occupancy switch 0/1
1x0004 Window switch 0/1
1x0005 Motion 0/1
1x0006 Active alarms 0/1 Number of alarms, 0=No active
alarms, 1=Active alarms
1x0007 No Room Unit 1 0/1 ALARM, resets automatically
1x0008 No Room Unit 2 0/1 ALARM, resets automatically
1x0009 No Pressure sensor 0/1 ALARM, resets automatically
1x0010 No Supply Flow sensor 0/1 ALARM, resets automatically
1x0011 No Exhaust Flow sensor 0/1 ALARM, resets automatically
1x0012 Room Unit 1 Temperature 0/1 ALARM, resets automatically
1x0013 Room Unit 2 Temperature 0/1 ALARM, resets automatically
1x0014 Regulator KTY short circuit 0/1 ALARM, resets automatically
1x0015 Regulator KTY open circuit 0/1 ALARM, resets automatically
1x0016 Room Unit Low Battery 0/1 ALARM, resets automatically
1x0017 PI-controller overload 0/1 ALARM, resets automatically
1x0018 Setpoint not reached 0/1 ALARM, resets automatically
1x0019 Not used
1x0020 Not used
1x0021 No device list 0/1 ALARM, resets automatically
1x0022 AC overload 0/1 ALARM, resets automatically
1x0023 System fault 0/1 ALARM
1x0024 No serial number 0/1 ALARM
1x0025 Not used
1x0026 Short circuit X11 0/1 ALARM, requires HW reset
1x0027 Short circuit X12 0/1 ALARM, requires HW reset
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20210201 Swegon reserves the right to make design changes.
CONDUCTOR W4