Armstrong Design Envelope 4300/4380 pump with IVS drive

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 confirmed at the hardware-verified rung and at no rung below it.

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
actual_speed_rpm	100	U16	1	RPM
actual_speed_percent	101	U16	0.1	%
motor_power	102	U32BE	0.01
motor_input_voltage	104	U16	0.1	V
motor_input_current	105	U32BE	0.01	A
sensorless_head	107	U32BE	0.01
sensorless_flow	109	U32BE	0.01
total_flow	111	U32BE	0.01
total_power	113	U32BE	0.01
number_of_running_pumps	115	U16	1
max_sensorless_flow	116	U32BE	0.01
max_sensorless_head	118	U32BE	0.01
status	122	U16	1
digital_in	200	U16	1
analog_in_1	201	U32BE	0.01	V or mA
analog_in_2	203	U32BE	0.01	V or mA
analog_out_1	205	U16	0.01	mA
digital_out	206	U16	1
relays	207	U16	1
total_pump_running_hours	275	U32BE	1	h
trip_pump_running_hours	277	U32BE	1	h
total_controller_running_hours	279	U32BE	1	h
present_controller_running_hours	281	U32BE	1	h
total_pump_running_kwh	283	U32BE	1	kWh
trip_pump_running_kwh	285	U32BE	1	kWh
control_mode	300	U16	1
hoa_state	301	U16	1
alarms	400	U32BE	1
warnings	402	U32BE	1

link settings as documented (unverified): RTU/TCP; FC 03,06; Modbus RTU or TCP/IP supported. Configurable via touchscreen or webserver.

bench facts as documented (unverified)

terminals	RS-485 Interface: (P RS-485) terminal 68, (N RS-485) terminal 69, (COM RS-485) terminal 61
A/B polarity	A = + Positive, B = - Negative, G = Ground
termination	Terminating resistor switch set to Enabled (towards the EN label for the BAS ports)
connector	3-way plug for RS485 bus
shield/ground	Recommended cable is 3-conductor AWG 20 stranded tinned copper, PVC insulated, foil shielded and with wire guide (e.g., Belden 3106A)
serial register	908
firmware register	915
power	1 x 200-240V +- 10%, 3 x 200-240V +- 10%, 3 x 380-480V +- 10%, 3 x 525-600V +- 10%, 50/60Hz
environment	Ambient temperature for standard motors must be no greater than 113°F/45°C. Standard enclosure rating is UL Type 12 / IP55.
certifications	UL Type 12 / IP55, CE compliance, UL compliance (61800-5-1), UL compliance (508c)
doc revision	File No: 101.82, Date: November 10, 2025

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

confirmed: File No: 101.82, Date: November 10, 2025 — confirmed by Armstrong Fluid Technology Design Envelope 4300 & 4380 manual [1.1.1]
confirmed: Modbus RTU or TCP/IP supported — confirmed by manual section 3.0 networking controls
confirmed: actual_speed_rpm @ 100, actual_speed_percent @ 101, motor_power @ 102, motor_input_voltage @ 104, motor_input_current @ 105, sensorless_head @ 107, sensorless_flow @ 109, total_flow @ 111, total_power @ 113, number_of_running_pumps @ 115, max_sensorless_flow @ 116, max_sensorless_head @ 118, status @ 122 — confirmed by Modbus register map
confirmed: digital_in @ 200, analog_in_1 @ 201, analog_in_2 @ 203, analog_out_1 @ 205, digital_out @ 206, relays @ 207 — confirmed by Modbus register map
confirmed: total_pump_running_hours @ 275, trip_pump_running_hours @ 277, total_controller_running_hours @ 279, present_controller_running_hours @ 281, total_pump_running_kwh @ 283, trip_pump_running_kwh @ 285 — confirmed by Modbus register map
confirmed: control_mode @ 300, hoa_state @ 301, alarms @ 400, warnings @ 402 — confirmed by Modbus register map
confirmed: firmware_register @ 915, serial_register @ 908 — confirmed by Modbus register map

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.

If your device isn't here, upload its register map. Generation is free, and the connector keeps the rung it earns under testing.

To prove a connector against your own device, order hardware verification. If it doesn't verify, you don't pay.

Platform builders can license the verified library: machine-readable maps, the firmware matrix, API access.