Aermec ModuControl modular chiller controller

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
ntc1_input_tua	2	I16	0.1
ntc2_input_tia	3	I16	0.1
ntc3_input_tsb	4	I16	0.1
ntc4_input_tgp	5	I16	0.1
ntc5_input_tae	6	I16	0.1
high_pressure_transducer_input	7	I16	0.1
low_pressure_transducer_input	8	I16	0.1
hours_of_primary_compressor_operation_thousands	13	U16	1
hours_of_primary_compressor_operation	14	U16	1
machine_adjustment_setpoint	19	I16	0.1
hours_of_auxiliary_compressor_operation_thousands	22	U16	1
hours_of_auxiliary_compressor_operation	23	U16	1
power_supplied_by_machine	26	U16	1
inverter_current_apy	34	U16	0.1
inverter_output_voltage_apy	35	U16	1
inverter_bus_voltage_apy	36	U16	1
inverter_cooling_fin_temperature_apy	37	I16	0.1
cooling_setpoint	39	I16	0.1	°C
cooling_setpoint_band	40	I16	0.1	°C
heating_setpoint	41	I16	0.1	°C
heating_setpoint_band	42	I16	0.1	°C
cooling_setpoint_1	44	I16	0.1	°C
external_at_in_cool_mode_1	45	I16	0.1	°C
cooling_setpoint_2	46	I16	0.1	°C
external_at_in_cool_mode_2	47	I16	0.1	°C
heating_setpoint_1	48	I16	0.1	°C
external_at_in_heat_mode_1	49	I16	0.1	°C
heating_setpoint_2	50	I16	0.1	°C
external_at_in_heat_mode_2	51	I16	0.1	°C
domestic_water_setpoint	52	I16	0.1	°C
domestic_water_band	53	I16	0.1	°C

link settings as documented (unverified): RTU; FC 01,03,05,06,15,16; Requires RS485 serial expansion card. Modu_Control card is always the slave. Parameters J (Ad1) and L (Bd1) configure address and baud rate.

bench facts as documented (unverified)

connector	RS485 serial expansion card
protocol notes	To write COIL parameters, supervision commands must be enabled by setting parameter (N) = 1 in the installer menu (password=30).
firmware register	17
identification notes	Major sw version is at register 17, Minor sw version is at register 18.
doc revision	IMDCFJ. 1008 - 6343841_01 Ver - 4.22

generated by gemini:gemini-3.5-flash · harvested from https://planetaklimata.com.ua/instr/Aermec/Aermec_ModuControl_User_manual_Eng.pdf (Aermec); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; 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.

Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.

Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.