Krohne IFC300 flow converter

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
flow_speed	30000	F32BE	1	m/s
volume_flow	30002	F32BE	1	m3/s
mass_flow	30004	F32BE	1	kg/s
coil_temperature	30006	F32BE	1	K
conductivity	30008	F32BE	1	S/m
diagnosis_value	30010	F32BE	1
display_channel_1	30012	F32BE	1
display_channel_2	30014	F32BE	1
operating_time	30016	F32BE	1	s

link settings as documented (unverified): RTU; default 19200 8E1; unit ID 1; FC 01,03,04,05,08,16; Transmission delay range 0..40ms (default 0ms). Data format Big Endian (default) or Little Endian.

bench facts as documented (unverified)

terminals	D- (Signal A / D0), D (Signal B / D1), C- (Common 0 V), C (Not connected)
A/B polarity	D- is Signal A, D is Signal B
termination	120 Ohm / 560 Ohm termination/polarization resistors activated by jumpers X5/X6
connector	Terminals A and B of the converter are dependent on options selected at order
isolation	RS485, galvanically isolated
shield/ground	Screened twisted pair cable
wiring notes	Maximum 1.2 km / 3937 ft without repeater
max registers/read	125
broadcast	supported
protocol notes	Address 0 is reserved for broadcast
identification notes	Supports Modbus Device Identification (FC43/14) with objects VendorName, ProductCode, MajorMinorRevision, Vendor URL, ProductName, ModelName, UserApplicationName
FC 43 device ID	supported
doc revision	AD Modbus IFC 300 R02 en
firmware applicability	ER 3.2.xx (SW.REV. 3.2x)

generated by gemini:gemini-3.5-flash · harvested from https://cdn.krohne.com/pick2/tagged_docs/AD_IFC300_Modbus_en_091106_4000410702_R02_PRT___1000082889_1__.pdf (Krohne); 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.