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 only confirmed at the hardware-verified rung.

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.

point	address (0-based)	type	scale	unit
sa_air_flow	3	U16	1
ea_air_flow	5	U16	1
sa_duct_pressure	7	U16	0.1
ea_duct_pressure	9	U16	0.1
sa_ahu_filter_pressure_level	26	U16	0.1
ea_ahu_filter_pressure_level	28	U16	0.1
sa_fan_level	36	U16	0.01
ea_fan_level	37	U16	0.01
sa_fan_speed	38	U16	1
ea_fan_speed	39	U16	1
sa_voltage	40	U16	1
ea_voltage	41	U16	1
sa_fan_current	42	U16	0.001
ea_fan_current	43	U16	0.001
sa_fan_power	44	U16	0.001
ea_fan_power	45	U16	0.001
sa_fan_kwh	46	U16	1
ea_fan_kwh	47	U16	1
sa_temperature	63	I16	0.01	°C
ea_temperature	65	I16	0.01	°C
outdoor_temperature	72	I16	0.01	°C
heat_exchanger_regulator_level	90	U16	0.01	%
reheat_regulator_level	93	U16	0.01	%
cool_regulator_level	100	U16	0.01	%
rhx_operation_level	104	U16	0.01	%
operation_level	591	U16	1
sa_low_speed_air_flow_set_point	2	U16	1
ea_low_speed_air_flow_set_point	3	U16	1
sa_high_speed_air_flow_set_point	4	U16	1
ea_high_speed_air_flow_set_point	5	U16	1
sa_low_speed_pressure_set_point	18	U16	0.1
ea_low_speed_pressure_set_point	19	U16	0.1
sa_high_speed_pressure_set_point	20	U16	0.1
ea_high_speed_pressure_set_point	21	U16	0.1
sa_temperature_set_point	131	I16	0.01	%
ea_room_temperature_set_point	134	I16	0.01	mBar

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

bench facts as documented (unverified)

firmware applicability

Applicable to program version 1.09 and newer versions

generated by gemini:gemini-3.5-flash · harvested from https://www.swegon.com/siteassets/_product-documents/air-handling-units/gold-version-f/communication/_en/gold_e_modbus.pdf (Swegon); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; proved interop-verified on 2026-06-11 · recorded 2026-06-11

The trust ladder

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

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
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.
simulator-verified — Decoded correctly against a protocol emulator seeded with known-true values — catches word-order/scaling errors vs the emulator, not the physical device.
hardware-verified x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

Have a device that isn't here? Upload its register map — generation is free, and the connector earns its rung by being proven, not claimed.

Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.

Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.