Mitsubishi FR-E800 drive

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
inverter_reset	1	U16	1
parameter_clear	2	U16	1
all_parameter_clear	3	U16	1
inverter_status_control_extended	7	U16	1
inverter_status_control	8	U16	1
operation_mode_setting	9	U16	1
set_frequency_ram	13	U16	0.01	Hz
set_frequency_eeprom	14	U16	0.01	Hz
fault_record_1	500	U16	1

link settings as documented (unverified): RTU/TCP; default 19200 8E1; unit ID 0; FC 03,06,08,16,70; Supports MODBUS RTU and MODBUS/TCP. Station number 0 is for broadcast.

⚠ Always set the communication check time interval before starting operation to prevent hazardous conditions. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

terminals	PU connector (RJ-45)
A/B polarity	RDA, RDB, SDA, SDB
termination	Connect a 100 Ohm 1/2 W terminating resistor between RDA (pin 3) and RDB (pin 6)
connector	RJ-45
shield/ground	SG (pins 1 and 7) connected to terminal 5
wiring notes	Pins 2 and 8 provide power to the operation panel or parameter unit. Do not use these pins for RS-485 communication.
max registers/read	125
response timeout	50 ms
broadcast	supported
protocol notes	No response is returned in the case of broadcast communication.
model register	44001
identification notes	Model name can be read in ASCII code from registers 44001 to 44010.
power	Pins 2 and 8 of PU connector provide power to the operation panel or parameter unit.

generated by gemini:gemini-3.5-flash · harvested from https://eu-assets.contentstack.com/v3/assets/blt5412ff9af9aef77f/bltc8276ff19495b013/651bed441ac37419732ed01d/ib0600871engm.pdf (Mitsubishi Electric); 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.