Janitza UMG96RM-EL power meter

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
voltage_l1_n	19000	F32BE	1
voltage_l2_n	19002	F32BE	1
voltage_l3_n	19004	F32BE	1
voltage_l1_l2	19006	F32BE	1
voltage_l2_l3	19008	F32BE	1
voltage_l1_l3	19010	F32BE	1
current_l1	19012	F32BE	1
current_l2	19014	F32BE	1
current_l3	19016	F32BE	1
current_vector_sum	19018	F32BE	1
real_power_l1	19020	F32BE	1
real_power_l2	19022	F32BE	1
real_power_l3	19024	F32BE	1
real_power_sum	19026	F32BE	1
apparent_power_l1	19028	F32BE	1
apparent_power_l2	19030	F32BE	1
apparent_power_l3	19032	F32BE	1
apparent_power_sum	19034	F32BE	1
reactive_power_l1	19036	F32BE	1
reactive_power_l2	19038	F32BE	1
reactive_power_l3	19040	F32BE	1
reactive_power_sum	19042	F32BE	1
cos_phi_l1	19044	F32BE	1
cos_phi_l2	19046	F32BE	1
cos_phi_l3	19048	F32BE	1
frequency	19050	F32BE	1
real_energy_l1	19054	F32BE	1
real_energy_l2	19056	F32BE	1
real_energy_l3	19058	F32BE	1
real_energy_sum	19060	F32BE	1
thd_u_l1	19110	F32BE	1
thd_u_l2	19112	F32BE	1
thd_u_l3	19114	F32BE	1
thd_i_l1	19116	F32BE	1
thd_i_l2	19118	F32BE	1
thd_i_l3	19120	F32BE	1

link settings as documented (unverified): FC 03,04,06,16,23; Supports Big-Endian and Little-Endian byte sequences. If Little-Endian is required, add 32768 to the register address.

bench facts as documented (unverified)

broadcast	supported
protocol notes	Modbus register addresses are updated every 200ms. Measured values in short format do not take into account the set transformer ratio, whereas float or integer formats do.
doc revision	1.040.109.4.h

generated by gemini:gemini-3.5-flash · harvested from https://www.janitza.com/files/download/manuals/current/UMG96RM/EL/janitza-mal-umg96rmel-en.pdf (Janitza); 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.