Badger Meter ModMAG M2000 mag flow meter

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
t1_t_plus_m3	207	F32BE	1	m3
t1_t_plus_user_units	211	F32BE	1
t2_t_minus_m3	215	F32BE	1	m3
t2_t_minus_user_units	219	F32BE	1
t3_tn_m3	223	F32BE	1	m3
t3_tn_user_units	227	F32BE	1
t1_t_plus_rollover_counter	231	U16	1
t2_t_minus_rollover_counter	232	U16	1
flow_velocity_m_s	233	F32BE	1	m/s
preset_batch_totalizer_m3	235	F32BE	1	m3
flow_rate_m3_s	237	F32BE	1	m3/s
preset_batch_totalizer_user_units	239	F32BE	1
flow_rate_user_units	241	F32BE	1
relative_flow_rate_percent	243	F32BE	1	%
power_up_counter	245	U16	1
detector_error_counter	246	U16	1
empty_pipe_counter	247	U16	1
full_scale_counter	248	U16	1
totalizer_overflow_counter	249	U16	1
meter_status	262	U16	1
power_loss_totalizer_seconds	263	U32BE	1	s
analog_input_measure_value	277	F32BE	1
empty_pipe_actual_resistance_ohms	282	F32BE	1	Ohms
empty_pipe_measure_value_volts	288	F32BE	1	V
flow_direction	301	U16	1
analog_output_current_a	334	F32BE	1	A
digital_input_status	341	U16	1

link settings as documented (unverified): RTU; FC 03,04,06,16; Port A (pins 5,6,7) supports MODBUS RTU using RS232. RS485 is supported as an accessory daughterboard (p/n 67079-003).

bench facts as documented (unverified)

terminals	Port A (pins 5,6,7) for RS232
wiring notes	RS485 supported via accessory daughterboard p/n 67079-003
protocol notes	Write function codes are not accepted while menu navigation is in process. Writes update volatile memory; must write 0x01 to Command Action Request Register (0x0125) to save to non-volatile memory.
model register	0x0001
serial register	0x0043
firmware register	0x0009
identification notes	Product Code at 0x0000, Product Name at 0x0001, Firmware Name at 0x0009, PCB Serial Number at 0x0043
doc revision	IAB-189-01-EN (August 2012)

generated by gemini:gemini-3.5-flash · harvested from https://www.kele.com/Catalog/07%20Flow/PDFs/Badger%20M2000%20Modbus%20Memory%20Map.pdf (Badger Meter); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; proved interop-verified on 2026-06-11 · recorded 2026-06-11

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.

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