ACI room temp/RH sensor

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
sensors_present	0	U16	1
temperature_sensor_value	2	I16	0.1	°C\|°F\|K
rh_sensor_value	3	I16	0.1	%RH
temperature_range_min	2000	I16	0.1	°C\|°F\|K
temperature_range_max	2001	I16	0.1	°C\|°F\|K
rh_range_min	2002	I16	0.1	%RH
rh_range_max	2003	I16	0.1	%RH
temperature_units	0	U16	1
temperature_offset_value	1	I16	0.1	°C\|°F\|K
rh_offset_value	2	I16	0.1	°C\|°F\|K

link settings as documented (unverified): RTU; baud 9600/19200/38400/57600/76800/115200; unit ID 0; Auto-baud not available for Modbus RTU. Default address is 0 but must be changed for Modbus RTU.

bench facts as documented (unverified)

terminals	Screw Terminal Blocks
A/B polarity	Reverse Polarity Protected
termination	On board end-of-line termination, jumper selectable 120 Ohm
connector	Depluggable terminal block
shield/ground	Shield cable should only be connected on one end to earth ground, usually at the controller.
serial register	9006
firmware register	9010
power	12 V dc to 36 V dc / 24 V ac ± 10 %, 50/60 Hz, 25 mA maximum
environment	Transmitter: -30 °C to 80 °C (-22 °F to 176 °F); Sensor: -40 °C to 150 °C (-40 °F to 302 °F)
accuracy	± 0.5 °C (± 1.0 °F) at 25 °C (77 °F)
certifications	CE, RoHS, UL94-HB, Plenum Rated

generated by gemini:gemini-3.5-flash · harvested from https://www.workaci.com/sites/default/files/category-files/I0000932.pdf (Automation Components Inc); 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.