ProMinent gamma/X dosing pump

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
status_register	999	U32BE	1
error_flags_1	1001	U32BE	1
error_flags_2	1003	U32BE	1
warning_flags	1005	U32BE	1
actual_stroke_rate	1007	U16	1	strokes/h
actual_stroke_length	1008	F32BE	1	%
maximum_possible_stroke_rate	1010	U16	1	strokes/h
actual_dosing_rate	1017	F32BE	1
maximum_possible_dosing_rate	1019	F32BE	1
actual_operating_mode	1021	U16	1
actual_sub_operating_mode	1022	U16	1
actual_concentration	1023	F32BE	1	ppm
switch_on_counter	1025	U32BE	1
total_operating_time	1027	U32BE	1	h
total_stroke_counter	1029	U32BE	1	strokes
deletable_stroke_counter	1031	U32BE	1	strokes
total_metering_quantity_counter	1033	F32BE	1	l
deletable_metering_quantity_counter	1035	F32BE	1	l
remaining_strokes	1037	U32BE	1	strokes
remaining_metering_volume	1039	F32BE	1	l
metering_volume_of_last_stroke	1041	F32BE	1
medium_system_pressure	1043	F32BE	1	bar
liquid_level_monitoring	1045	U16	1	%
start_stop_pump	1199	U16	1
target_stroke_length	1200	F32BE	1	%
target_stroke_rate	1202	U16	1	strokes/h
auxiliary_frequency	1206	U16	1	strokes/h
auxiliary_stroke_length	1208	F32BE	1	%
target_dosing_rate	1210	F32BE	1
batch_factor	1212	U32BE	1	strokes/contact
metering_volume_per_batch_mode_triggered	1214	F32BE	1
dosing_time_for_batch	1216	U16	1	sec
contact_factor	1218	U16	1	strokes/contact
metering_volume_per_contact_mode_triggered	1220	F32BE	1	l/contact
auxiliary_dosing_rate	1222	F32BE	1
activate_concentration_mode	1224	U16	1
desired_final_concentration	1225	F32BE	1	ppm
operating_mode	1227	U16	1
target_operating_mode	1228	U16	1
discharge_stroke_metering_type	1230	U16	1
suction_stroke_metering_type	1231	U16	1
duration_of_priming	1232	U16	1	sec
pcb_temperature	2999	F32BE	1	0.1 K
solenoid_current	3005	F32BE	1	A
intermediate_circuit_voltage	3007	F32BE	1	V
average_solenoid_output	3011	F32BE	1	W
fan_speed	3013	U16	1	Rotations/second
effective_travel_last_stroke	3014	F32BE	1

link settings as documented (unverified): RTU; default 19200 8E1; unit ID 20; FC 03,06,16,23; Modbus RTU implementation based on RS-485. Default settings are 19200 baud, even parity, 1 stop bit, 8 data bits.

bench facts as documented (unverified)

terminals	Pin 3: blue GND, Pin 4: black A/+, Pin 5: grey B/-
A/B polarity	A/+, B/-
termination	Active termination (terminating resistor) integrated on the PCB, can be switched on via the metering pump's menu
connector	M12 5-pin
wiring notes	half-duplex, 2-wire technology, twisted pair cable, max cable length 1200 m, RS-485 (TIA-485-A), differential voltage level ± 5 V
max registers/read	125
protocol notes	Maximum message size for FC03 is 200 bytes at 19,200 baud (100 bytes at 9600, 400 bytes at 38,400). Device monitoring stops the pump if queries from master remain unanswered beyond a certain time.
model register	8
serial register	3
firmware register	26
identification notes	Product code is at register 1 (address 0).
environment	IP65 degree of protection (if CAN cable is correctly screwed in)
doc revision	BA_G_047_12/24_EN

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

confirmed: The document BA_G_047_12/24_EN corresponds to the ProMinent gamma/ X Solenoid Metering Pump supplementary operating instructions [2.4.1].
confirmed: Default communication settings are 19200 baud, even parity, 1 stop bit, 8 data bits, and default unit ID (bus address) 20.
confirmed: The physical connector is an M12 5-pin connector with Pin 3: GND, Pin 4: A/+, and Pin 5: B/-.
confirmed: The register map addresses are correct as 0-based offsets of the 1-based registers defined in the manual (e.g., target_stroke_length at 1200 corresponds to Register 1201, operating_mode at 1227 corresponds to Register 1228, and target_operating_mode at 1228 corresponds to Register 1229).

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.

Device not here? Upload its manual and get a checked map back. It's free.

Want it confirmed against your own device? Order hardware verification. If it doesn't check out, you don't pay.

Building on a lot of devices? License the library — machine-readable maps, the firmware matrix, and API access.