ComAp InteliGen/InteliSys genset 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
binary_inputs	2	U16	1
binary_outputs	11	U16	1
battery_voltage	12	I16	0.1	V
cpu_temperature	13	I16	0.1	°C
d_plus	14	I16	0.1	V
oil_pressure	15	I16	0.1	Bar
water_temperature	16	I16	1	°C
fuel_level	17	I16	1	%
reload_time	18	I16	1	s
engine_state	162	U16	1
controller_mode	167	U16	1
generator_voltage_l1_n	248	U16	1
generator_voltage_l2_n	249	U16	1
generator_voltage_l3_n	250	U16	1
generator_frequency	255	U16	0.1
power_factor	260	I16	0.01
active_power	263	I16	1
mains_voltage_l1_n	287	U16	1
mains_voltage_l2_n	288	U16	1
mains_voltage_l3_n	289	U16	1
mains_frequency	295	U16	0.1
run_hours	3586	U32BE	1
number_of_starts	3588	U16	1

link settings as documented (unverified): RTU/TCP; baud 9600/19200/38400/57600; FC 03,06,10,16; Direct connection uses 8 data bits, 1 stop bit, no parity. Modbus speed is selectable between 9600, 19200, 38400, and 57600 bps.

bench facts as documented (unverified)

terminals	RS485(1), RS485(2), RS232(1), RS232(2), CAN(2)
termination	RS485 and CAN bus line has to be terminated by 120 ohm resistors on both ends.
connector	DB 9 for RS232, RJ45 for Ethernet, USB A-USB B for USB
isolation	All IGS-NT controllers - port RS485(1) has NO embedded galvanic separation, port RS485(2) has YES embedded galvanic separation.
shield/ground	Shielded cable has to be used, shielding has to be connected to PE on one side (controller side).
max registers/read	127
protocol notes	The response to an incoming message depends on the communication speed. The delay is not shorter than the time needed to send/receive 3 and 1/2 characters. Using function 16 it is possible to write maximum 16 registers at once.
environment	Max. ambient temperature 70°C
doc revision	IGS-NT Communication Guide 04-2015.pdf

generated by gemini:gemini-3.5-flash · harvested from https://www.sunpoweree.com.my/wp-content/uploads/manuals/igs-nt-manuals/IGS-NT-Communication-Guide-04-2015.pdf (ComAp); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; proved interop-verified on 2026-06-10 · recorded 2026-06-10

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.