E+E EE310 humidity/temp transmitter (RS485 models)

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
air_pressure	5000	F32LE	1	mbar
relative_humidity	1020	F32LE	1	%
temperature_c	1002	F32LE	1	°C
temperature_f	1004	F32LE	1	°F
dew_point_temperature_c	1104	F32LE	1	°C
dew_point_temperature_f	1106	F32LE	1	°F
frost_point_dew_point_temperature_c	1130	F32LE	1	°C
frost_point_dew_point_temperature_f	1132	F32LE	1	°F
absolute_humidity_g_m3	1112	F32LE	1	g/m³
absolute_humidity_gr_ft3	1114	F32LE	1	gr/ft³
mixing_ratio_g_kg	1120	F32LE	1	g/kg
mixing_ratio_gr_lb	1122	F32LE	1	gr/lb
wet_bulb_temperature_c	1108	F32LE	1	°C
wet_bulb_temperature_f	1110	F32LE	1	°F
ice_bulb_temperature_c	1682	F32LE	1	°C
ice_bulb_temperature_f	1684	F32LE	1	°F
specific_enthalpy_kj_kg	1124	F32LE	1	kJ/kg
specific_enthalpy_btu_lb	1128	F32LE	1	BTU/lb
specific_enthalpy_ft_lbf_lb	1126	F32LE	1	ft lbf/lb
water_vapour_partial_pressure_mbar	1100	F32LE	1	mbar
water_vapour_partial_pressure_psi	1102	F32LE	1	psi
volume_concentration_ppm	1150	F32LE	1	ppm

link settings as documented (unverified): RTU/TCP; default 9600 8E1; unit ID 231; FC 03,04,06,16; Modbus RTU is available via Option J3, Modbus TCP via Option J4.

bench facts as documented (unverified)

terminals	Screw terminals max. 1.5 mm² (AWG 16)
termination	Both ends of the bus shall be terminated with a resistor Ra=120 Ω.
connector	M12 socket, M12 plug, RJ45
isolation	galvanically isolated
shield/ground	GND RS485 (shielded)
model register	9
serial register	0
firmware register	8
power	8 - 35 V DC / 12 - 30 V AC, or 100 - 240 V AC (Option AM3)
environment	Operation: -40...+60 °C (-40...+140 °F) without display, -20...+50 °C (-4...+122 °F) with display
accuracy	RH: ±(0.95 + 0.0013 * mv) %RH, T: ±0.1 °C
certifications	CE, UKCA, FCC Part15 ClassA, ICES-003 ClassA

generated by gemini:gemini-3.5-flash · harvested from https://www.epluse.com/fileadmin/data/product/ee310/BA_EE310_e.pdf (E+E Elektronik); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; proved interop-verified on 2026-06-10 · recorded 2026-06-10

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.