Parker AC10 inverter

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
output_frequency	4096	U16	0.01	Hz
output_voltage	4097	U16	1	V
output_current	4098	U16	0.01	A
bus_voltage	4100	U16	1	V
output_torque_percent	4102	U16	0.1	%
radiator_temperature	4103	U16	1	°C
pid_given_value	4104	U16	0.1
pid_feedback_value	4105	U16	0.1
integer_power_value	4106	U16	1	kW
di_terminal_status	4107	U16	1
terminal_output_status	4108	U16	1
ai1_value	4109	U16	1
ai2_value	4110	U16	1
ao1_percent	4117	U16	0.01	%
current_speed	4119	U16	1	rpm
accurate_power_value	4120	U16	0.1	kW

link settings as documented (unverified): RTU/ASCII; default 9600 8N1; unit ID 1; FC 03,06; RS485 Half-duplex communication mode. Daisy chain structure is adopted by 485 Bus-line.

⚠ FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

terminals	A+ and B-
A/B polarity	A+ positive polarity of differential signal, B- negative polarity of differential signal
termination	Terminal resistance of 120 Ohm will be adopted for terminal of RS485 network
connector	Control terminals
shield/ground	No direct grounding shall be allowed for any point of RS485 network. All the equipment in the network shall be well grounded via their own grounding terminal.
max registers/read	9
broadcast	supported
protocol notes	Allows to read six function codes and write only one function code.
firmware register	0x0105
power	Input terminals of three-phase 400V AC voltage (R/L1 and S/L2 terminals for single-phase)
doc revision	HA502320U001 Issue 1

⚠ disputed: default stop_bits 1 — disputed by HA502320U001 manual parameter F902 default value which is 2 (2 stop bits)

⚠ disputed: default framing RTU — disputed by HA502320U001 manual parameter F901 default value which is 1 (ASCII)

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

Modbus control commands (start/stop/frequency) are ignored unless parameters F200, F201, and F203 are explicitly configured to Modbus control (value 3 or 10). [source]
Writing frequency references directly to parameter F113 (0xF10D) risks wearing out the EEPROM. Users must write to the RAM-only mirror address (0x010D) for continuous speed adjustments. [source]
confirmed: baud_rates [1200, 2400, 4800, 9600, 19200, 38400, 57600] — confirmed by HA502320U001 manual parameter F904
confirmed: default_baud 9600 — confirmed by HA502320U001 manual parameter F904 default value 3
confirmed: default_unit_id 1 — confirmed by HA502320U001 manual parameter F900 default value 1
confirmed: max_read_registers 9 — confirmed by HA502320U001 manual Section 12.5.1 (Less than 10 registers once time)
confirmed: register map offsets (4096 to 4120) — confirmed by HA502320U001 manual Section 12.6.2 (1000H to 1018H)

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.