ABB ACS355 machinery drive (needs FMBA-01 RS485 adapter)

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
control_word	0	U16	1
status_word	3	U16	1
speed_and_dir	100	I16	1
speed	101	I16	1
output_frequency	102	I16	0.1
current	103	U16	0.1
torque	104	I16	0.1
power	105	I16	0.1
dc_bus_voltage	106	U16	1
output_voltage	108	U16	1
drive_temp	109	I16	0.1
kwh_counter	114	U16	1
analog_input_1	119	I16	0.1
analog_input_2	120	I16	0.1
analog_output_1	123	U16	0.1
motor_temp	144	I16	1
control_board_temp	149	I16	0.1

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 03,06,08,16,23; Supports Modbus RTU protocol. EIA-485 or RS-232 interface.

⚠ According to IEC 60664 and IEC 61800-5-1, the connection of the motor thermistor to the digital input requires double or reinforced insulation. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

terminals	X1 on FMBA-01 Modbus adapter or X2 on control panel
connector	RJ-45 for RS-232, Terminal block for EIA-485
shield/ground	Ground the shield in the cabling between the activation switch and the control board at the control board.
max registers/read	120
broadcast	supported
protocol notes	Parameter writes through standard Modbus are always volatile unless saved with parameter 1607 PARAM SAVE.
power	1-phase 200...240 V AC, 3-phase 200...240 V AC, or 3-phase 380...480 V AC
environment	Enclosure degree of protection: IP20
certifications	CE, C-UL US, RoHS, TÜV NORD, C-Tick
doc revision	3AUA0000066143 Rev E, EFFECTIVE: 2020-11-02

generated by gemini:gemini-3.5-flash · harvested from https://library.e.abb.com/public/805f31a82d524d8aa8a750011e2cd001/EN_ACS355_UM_E_A5.pdf (ABB); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; 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.