Riello MultiCOM 302 UPS interface

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
states_alarms_1	0	U16	1
states_alarms_2	1	U16	1
states_alarms_3	2	U16	1
states_alarms_4	3	U16	1
input_voltage_v1	11	U16	1	V
input_voltage_v2	12	U16	1	V
input_voltage_v3	13	U16	1	V
input_frequency	17	U16	0.1	Hz/10
bypass_voltage_v1	21	U16	1	V
bypass_voltage_v2	22	U16	1	V
bypass_voltage_v3	23	U16	1	V
bypass_frequency	24	U16	0.1	Hz/10
output_voltage_v1	25	U16	1	V
output_voltage_v2	26	U16	1	V
output_voltage_v3	27	U16	1	V
load_phase_l1	37	U16	1	%
load_phase_l2	38	U16	1	%
load_phase_l3	39	U16	1	%
output_frequency	43	U16	0.1	Hz/10
battery_voltage	47	U16	0.1	V/10
charge_percent	51	U16	1	%
autonomy	53	U16	1	Minutes
internal_ups_temperature	61	I16	1	°C
output_nominal_voltage	77	U16	1	V
output_nominal_frequency	78	U16	0.1	Hz/10
output_nominal_power_kva	79	U16	0.1	kVA/10
output_nominal_power_kw	80	U16	0.1	kW/10
battery_nominal_capacity	83	U16	1	Ah
battery_benches	84	U16	1	1 or 2
counter_correct_messages	118	U16	1	Integer
counter_incorrect_messages	119	U16	1	Integer
firmware_version	128	U16	0.01	Integer*100

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 01,02,03,04,06,16; SERIAL 2 port offers RS-485 Half-Duplex or RS-232. SERIAL 1 port offers RS-232 with GPSER protocol.

bench facts as documented (unverified)

terminals	DB9 for SERIAL 1, RJ45 for SERIAL 2
termination	Embedded terminal resistor for RS485 bus (Rt=120Ω) enabled via DIP-switch no. 6
connector	DB9 and RJ45
wiring notes	SERIAL 2 port can be set as RS-485 Half Duplex port (default) or as RS-232 port by setting jumpers JP10, JP11, JP12 and JP13
sentinel values	For single-phase systems, the value 0xFFFF is reported in the registers relating to L2 and L3.
protocol notes	Slave Address = Base Address + [DIP-switch configuration]
firmware register	128
identification notes	Firmware version is reported in register 129 (address 128) as Integer*100
environment	Closed environments only
doc revision	0MNACCMC2ENUG

generated by gemini:gemini-3.5-flash · harvested from https://www.riello-ups.com/uploads/file/364/1364/0MNACCMC2ENUG__MAN_ACC_MULTICOM_302_EN_.pdf (Riello UPS); 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.