verified connector library

Swegon GOLD RX/PX/CX/SD air handling unit (Gen E/F)

Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire. Word order and scaling are confirmed at the hardware-verified rung and at no rung below it.

interop-verified

Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.

pointaddress (0-based)typescaleunit
sa_air_flow3U161
ea_air_flow5U161
sa_duct_pressure7U160.1
ea_duct_pressure9U160.1
sa_ahu_filter_pressure_level26U160.1
ea_ahu_filter_pressure_level28U160.1
sa_fan_level36U160.01
ea_fan_level37U160.01
sa_fan_speed38U161
ea_fan_speed39U161
sa_voltage40U161
ea_voltage41U161
sa_fan_current42U160.001
ea_fan_current43U160.001
sa_fan_power44U160.001
ea_fan_power45U160.001
sa_fan_kwh46U161
ea_fan_kwh47U161
sa_temperature63I160.01°C
ea_temperature65I160.01°C
outdoor_temperature72I160.01°C
heat_exchanger_regulator_level90U160.01%
reheat_regulator_level93U160.01%
cool_regulator_level100U160.01%
rhx_operation_level104U160.01%
operation_level591U161
sa_low_speed_air_flow_set_point2U161
ea_low_speed_air_flow_set_point3U161
sa_high_speed_air_flow_set_point4U161
ea_high_speed_air_flow_set_point5U161
sa_low_speed_pressure_set_point18U160.1
ea_low_speed_pressure_set_point19U160.1
sa_high_speed_pressure_set_point20U160.1
ea_high_speed_pressure_set_point21U160.1
sa_temperature_set_point131I160.01%
ea_room_temperature_set_point134I160.01mBar

link settings as documented (unverified): RTU/TCP; FC 01,02,03,04,05,06,08,15,16

bench facts as documented (unverified)
firmware applicabilityApplicable to program version 1.09 and newer versions
field reports — community-sourced, unverified (checked 2026-06-11)
  • confirmed: comms framing: RTU, TCP — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document [1.3.1]
  • confirmed: comms function_codes: 1, 2, 3, 4, 5, 6, 8, 15, 16 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document
  • confirmed: firmware_applicability: Applicable to program version 1.09 and newer versions — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document
  • confirmed: sa_air_flow @ 3 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document (lists SA Air flow at 3x0004, which is 0-based address 3)
  • confirmed: ea_air_flow @ 5 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document (lists EA Air flow at 3x0006, which is 0-based address 5)
  • confirmed: sa_duct_pressure @ 7 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document (lists SA Duct pressure at 3x0008, which is 0-based address 7)
  • confirmed: ea_duct_pressure @ 9 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document (lists EA Duct pressure at 3x0010, which is 0-based address 9)
  • confirmed: sa_ahu_filter_pressure_level @ 26 — confirmed by Swegon's official 'Modbus RTU/TCP GOLD RX/PX/CX/SD, GENERATION E/F' protocol document (lists SA AHU filter pressure level at 3x0027, which is 0-based address 26)

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

If your device isn't here, upload its register map. Generation is free, and the connector keeps the rung it earns under testing.

To prove a connector against your own device, order hardware verification. If it doesn't verify, you don't pay.

Platform builders can license the verified library: machine-readable maps, the firmware matrix, API access.