Estun ProNet AC servo 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
speed_feedback	2054	I16	1
input_speed_reference_value	2055	I16	1
input_torque_reference_percentage	2056	I16	1
internal_torque_reference_percentage	2057	I16	1
number_of_encoder_rotation_pulses	2058	U16	1
input_signal_state	2059	U16	1
encoder_signal_state	2060	U16	1
output_signal_state	2061	U16	1
pulse_setting	2062	U16	1
low_bits_of_present_location	2063	U16	1
high_bits_of_present_location	2064	I16	1
error_pulse_counter_low_16_bits	2065	U16	1
error_pulse_counter_high_16_bits	2066	I16	1
setting_pulse_counter_low_bits	2067	U16	1
setting_pulse_counter_high_bits	2068	I16	1
load_inertia_percentage	2069	U16	1
servomotor_overloading_proportion	2070	U16	1
current_alarm	2071	U16	1
servomotor_winding_temperature	2072	I16	1

link settings as documented (unverified): RTU/ASCII; default 9600 8O1; unit ID 1; Maximum of 31 servo drives can be connected. Terminating resistance of 120 ohms is used at both ends of the 485 network. If transmission speed is above 9600bps, please use the communication cable within 15 meters.

bench facts as documented (unverified)

terminals	CN3, CN4
termination	120 ohm terminating resistance
isolation	Isolated ground (ISO_GND)
shield/ground	Connect shield to connector shell
wiring notes	CN3 is used as communication cable input terminal and CN4 is used as communication cable output terminal.
max registers/read	12
protocol notes	Data content n-word=2n-byte, n <= 12
power	Single-phase 200~230VAC, Three-phase 200~230VAC, Three-phase 380~480VAC, Three-phase 380~440VAC (+10% -15%, 50/60Hz)
environment	Temperature: -20~55°C, Humidity: 5%~95%RH, Vibration: 4.9m/s^2 or less, Condensation and Freezing: None
certifications	CE
doc revision	V2.02

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

confirmed: comms.baud_rates [4800, 9600, 19200] and default_baud 9600 — confirmed by Estun ProNet Series User Manual parameter Pn700.0
confirmed: comms.parity 'O' (Odd) and stop_bits 1 — confirmed by Estun ProNet Series User Manual parameter Pn700.1 default setting 5 (8, O, 1)
confirmed: comms.default_unit_id 1 — confirmed by Estun ProNet Series User Manual parameter Pn701 default setting
confirmed: quirks.max_read_registers 12 — confirmed by Estun ProNet Series User Manual stating 'n-word=2n-byte, n <= 12'
confirmed: physical.terminals CN3, CN4 and isolation ISO_GND — confirmed by Estun ProNet Series User Manual CN3/CN4 pinout definitions
confirmed: power specifications — confirmed by Estun ProNet Series User Manual voltage ranges for 200V and 400V drive units
confirmed: register map addresses (0806h-0818h / 2054-2072) — confirmed by Estun ProNet Series User Manual Servo state data communication address table

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.