Endress+Hauser Micropilot FMR20 radar

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.

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.

point	address (0-based)	type	scale	unit
MODB_PV_VALUE	5000	F32BE	1
MODB_SV_VALUE	5002	F32BE	1	m
MODB_TV_VALUE	5004	F32BE	1	dB
MODB_QV_VALUE	5006	F32BE	1	°C
MODB_SIGNALQUALITY	5008	F32BE	1
MODB_ACTUALDIAGNOSTICS	5010	F32BE	1
MODB_LOCATION_LONGITUDE	5012	F32BE	1	°
MODB_LOCATION_LATITUDE	5014	F32BE	1	°
HO_PVVALUE	5100	F32BE	1
LCRS_PRIMLEVOUT_VALUE	5102	F32BE	1
LCRS_SIGNALQUALITY	5104	U16	1
LCRS_DISTANCE_VALUE	5105	F32BE	1	m
HO_TVVALUE	5107	F32BE	1	dB
LCRS_ABSECHOAMPLITUDE	5109	F32BE	1	dB
LCRS_SNAPPEDLEVEL	5111	F32BE	1	m
LCRS_SNAPPEDDISTANCE	5113	F32BE	1	m
LCRS_SNAPPEDABSOLUTEECHOAMPLITUDE	5115	F32BE	1	dB
HO_QVVALUE	5117	F32BE	1	°C
LCRS_ACTUALDIAGNOSTICS	5119	U32BE	1
LCRS_PREVIOUSDIAGNOSTICS	5121	U32BE	1
LCRS_DELETEPREVIOUSDIAGNOSTIC	5123	U16	1
LCRS_CURRENTEVENTCATEGORY	5124	U16	1
STD_LOCKINGSTATE	5125	U16	1
STD_ENPDEVICESERIALNUMBER	5126	U16	1
STD_ENPDEVICEORDERIDENT	5132	U16	1
STD_ENPDEVICEFIRMWAREREVISION	5142	U16	1
STD_ENPDEVICENAME	5146	U16	1
STD_ENPVERSION	5154	U16	1
STD_ENPDEVICEORDERCODEAPS	5162	U16	1
STD_ENPDEVICEORDERCODEAPS1	5192	U16	1
STD_ENPDEVICEORDERCODEAPS2	5202	U16	1
STD_ENPDEVICEORDERCODEAPS3	5212	U16	1
STD_MAINBOARDSERIALNUMBER	5222	U16	1
LCRS_MODULESERIALNUMBER	5232	U16	1
MODB_LOCATION_LONGITUDE	5242	F32BE	1	°
MODB_LOCATION_LATITUDE	5244	F32BE	1	°
UIDHPM_HO_LONGTAG_0	5246	U16	1
LE_EMPTY	5262	F32BE	1	m
LE_FULL	5264	F32BE	1	m
LCRS_DISTANCESELECTIONCONTROL	5266	U16	1
LCRS_MAPPING_ENDPOINTCTRL	5267	F32BE	1	m
STD_RESETLEVEL	5269	U16	1
STD_USERLEVEL	5270	U16	1
STD_ACCESSCODE	5271	U16	1
LCRS_ENTERPRIVATECODE	5272	U16	1
LCRS_CONFIRMPRIVATECODE	5273	U16	1
LCRS_SIMULATIONMODE	5274	U16	1
LE_SIMULATVALUE	5275	F32BE	1	m
LCRS_FIRSTECHOSENSITIVITYCTRL	5277	U16	1
LE_DISTANCEUNIT	5278	U16	1
LCRS_ECHOLOSTDELAY	5279	U16	1	s
LCRS_ADJUSTEVENTECHOLOST	5280	U16	1
LCRS_CHANGINGVELOCITY	5281	U16	1
LE_CSTLINTYPE	5282	U16	1
LE_CUSTOMUNIT	5283	U16	1
FMR_LIN_TABLE	5284	F32BE	1	m -> m³
FMR_LIN_TABLE_2	5348	F32BE	1	m -> m³
LCRS_EVALUATIONSENSITIVITY	5412	U16	1
LE_LEVCORROFFS	5413	F32BE	1
LE_CT_ACTTABLE	5415	U16	1
LE_OUTPUTMODE	5416	U16	1
LE_CT_EDITMODE	5417	U16	1
LCRS_EVALUATIONDISTANCE	5418	F32BE	1	m
LCRS_FREEFIELDMODE	5420	U16	1
LCRS_HIGHBLOCKDISTANCE	5421	F32BE	1	m
LCRS_MAP_ENDX	5423	F32BE	1	m
LE_PVUNIT	5425	U16	1
MODB_RUNMODE	5426	U16	1
MODB_MEASUREMENT_TRIGGER	5427	U16	1
MODB_PROTOCOL	5428	U16	1
MODB_PARITY_AND_DATABITS	5429	U16	1
MODB_STOPBIT	5430	U16	1
MODB_BAUDRATE	5431	U16	1
MODB_ADDRESS	5432	U16	1
MODB_FLOAT32_SWAP_ORDER	5433	U16	1
MODB_INT32_SWAP_ORDER	5434	U16	1
LCRS_BLESWITCH	5435	U16	1
MODB_BLUETOOTH_STARTUP_DELAY	5436	U16	1	s
MODB_BLE_CONNECTION_STATE	5437	U16	1

link settings as documented (unverified): RTU/ASCII; default 9600 8E1; unit ID 200; FC 03,06,16; Minimum polling interval 500 ms

bench facts as documented (unverified)

terminals	Plus (brown), Minus (blue), Modbus D0/A (+) (white), Modbus D1/B (-) (black)
A/B polarity	D0/A (+), D1/B (-)
termination	Bus terminating resistor as per RS485-IS specification (510 Ohm / 200 Ohm / 510 Ohm)
connector	Cable gland or Conduit adapter
isolation	RS485-IS specification for use in hazardous environments
wiring notes	Up to 32 users can be connected on the RS485 bus. Type-A fieldbus cable max length 1200 m (3937 ft) or 1000 m (3281 ft) in hazardous environment.
protocol notes	Minimum polling interval 500 ms
serial register	5126
firmware register	5142
identification notes	Order code at 5132, Device name at 5146, ENP version at 5154
power	5 to 30 VDC
environment	Permitted ambient temperature (Ta) and max process temperature on nameplate. Sensor can reach close to medium temperature up to 80 °C (176 °F) during operation.
certifications	CE mark, EAC conformity, RCM
doc revision	BA02115F/00/EN/02.21, 71535780, 2021-08-30
firmware applicability	01.00.zz

field reports — community-sourced, unverified (checked 2026-06-11)

The register address must be incremented by one (register address +1) when using certain Modbus masters (such as Memograph M RSG45 or Fieldgate FXA30b) due to 1-based vs 0-based addressing differences. [source]
confirmed: comms defaults (baud rates [1200, 2400, 4800, 9600, 19200], default baud 9600, default unit ID 200, framing [RTU, ASCII], parity E, stop bits 1) — confirmed by Operating Instructions BA02115F/00/EN/02.21
confirmed: physical terminals and polarity (Plus brown, Minus blue, Modbus D0/A (+) white, Modbus D1/B (-) black) — confirmed by Operating Instructions BA02115F/00/EN/02.21
confirmed: register map (MODB_PV_VALUE @ 5000, MODB_SV_VALUE @ 5002, MODB_TV_VALUE @ 5004, MODB_QV_VALUE @ 5006, MODB_SIGNALQUALITY @ 5008, MODB_ACTUALDIAGNOSTICS @ 5010, MODB_LOCATION_LONGITUDE @ 5012, MODB_LOCATION_LATITUDE @ 5014, LCRS_DISTANCE_VALUE @ 5105, HO_QVVALUE @ 5117, LCRS_SIGNALQUALITY @ 5104, LCRS_PRIMLEVOUT_VALUE @ 5102, LCRS_ABSECHOAMPLITUDE @ 5109, LCRS_SNAPPEDLEVEL @ 5111, LCRS_SNAPPEDABSOLUTEECHOAMPLITUDE @ 5115, LCRS_SNAPPEDDISTANCE @ 5113, HO_PVVALUE @ 5100, HO_TVVALUE @ 5107, LCRS_CURRENTEVENTCATEGORY @ 5124, LCRS_ACTUALDIAGNOSTICS @ 5119, LCRS_PREVIOUSDIAGNOSTICS @ 5121, LE_FULL @ 5264, LE_EMPTY @ 5262, LCRS_MAPPING_ENDPOINTCTRL @ 5267) — confirmed by Operating Instructions BA02115F/00/EN/02.21

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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