Unitronics Vision/Samba PLC

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
mi_memory_integer	0	I16	1
mi_memory_integer_to_float	2000	I16	1
si_system_integer	4000	I16	1
si_system_integer_to_float	4550	I16	1
ml_memory_long	5100	U32BE	1
ml_memory_long_to_float	5600	F32BE	1
sl_system_long	6100	U32BE	1
sl_system_long_to_float	6200	F32BE	1
mdw_memory_double_word	6300	U32BE	1
mdw_memory_double_word_to_float	6500	F32BE	1
sdw_system_double_word	6700	U32BE	1
sdw_system_double_word_to_float	6800	F32BE	1
timer_preset	6900	U32BE	1
timer_current	7200	U32BE	1
mf_memory_float	7700	F32BE	1

link settings as documented (unverified): RTU; FC 01,02,03,04,05,06,08,15,16; Unitronics currently supports RTU (binary) transmission mode. Network ID range is 0-255.

bench facts as documented (unverified)

doc revision

2.02

generated by gemini:gemini-3.5-flash · harvested from https://support.elmark.com.pl/unitronics/pdf/MODBUS.pdf (Unitronics); 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.