danfoss-vlt-2800-6000-8000-drive

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

structure-verified

Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.

point	address (0-based)	type	scale	unit
PCD1 Control Word (Coils 1-16)	0	U16	1
Array index	8	U16	1
PCD2 Reference Value (Coils 17-32)	16	U16	1
PCD1 Status Word (Coils 33-48)	32	U16	1
PCD2 Given output frequency (Coils 49-64)	48	U16	1
Write parameters to eeprom	64	U16	1
Address (VLT 2800) / Protocol (VLT 6000/8000)	4999	U16	1
Baudrate (VLT 2800) / Address (VLT 6000/8000)	5009	U16	1
Protocol (VLT 2800)	5609	U16	1
Modbus parity and message framing	5699	U16	1
Modbus communications timeout	5709	U16	1	ms

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.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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