ICP DAS ET-7000/PET-7000 I/O

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.

structure-verified

Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.

point	address (0-based)	type	scale
analog_input_ch0	0	I16	1
analog_input_ch1	1	I16	1
analog_input_ch2	2	I16	1
analog_input_ch3	3	I16	1
analog_input_ch4	4	I16	1
analog_input_ch5	5	I16	1
analog_input_ch6	6	I16	1
analog_input_ch7	7	I16	1
cjc_temperature	143	I16	1
di_counter_ch0	32	U32BE	1
di_counter_ch1	34	U32BE	1
di_counter_ch2	36	U32BE	1
di_counter_ch3	38	U32BE	1
di_counter_ch4	40	U32BE	1
di_counter_ch5	42	U32BE	1
analog_output_ch0	0	I16	1
analog_output_ch1	1	I16	1

link settings as documented (unverified): TCP; unit ID 1; FC 01,02,03,04,05,06,15,16; Ethernet/PoE I/O modules using Modbus TCP on port 502.

bench facts as documented (unverified)

terminals	Screw terminals
wiring notes	ET-7000 Series (Ethernet I/O) and PET-7000 Series (PoE I/O)
protocol notes	Host Watchdog Timer (WDT) supported.
model register	40559
firmware register	30351
identification notes	Module name register 40559 (or 40260 depending on model) returns the model code (e.g., 0x7002 for ET-7002).
power	PoE (for PET-7000 series) or external power supply (for ET-7000 series).
environment	Operating temperature range mentioned up to 75°C for electrical life specs.
accuracy	Analog Input accuracy: +/-0.1% or better (Normal Mode), +/-0.5% or better (Fast Mode). RTD Input accuracy: +/-0.05%.
doc revision	Version 1.0.1, January 2013

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

Since Firmware version 3.11 or later, factory default credentials are no longer supported, requiring manual creation on first login. [source]
An 'Invalid IP Address' error message may be displayed in the Network Settings configuration page when using Mozilla Firefox or SeaMonkey browsers. [source]
The module fails to retrieve or authenticate the account and password when the credential length is exactly equal to 8 characters. [source]
confirmed: Default Unit ID is 1, framing is TCP on port 502, and supports function codes 1, 2, 3, 4, 5, 6, 15, 16 — confirmed by ET-7002/PET-7002 User Manual and ET-7x00 Series Register Table
confirmed: Firmware version register is 30351 (0-based 351) and Module Name register is 40559 (0-based 559) — confirmed by ET-7x00/PET-7x00 Series Register Table
confirmed: Analog Input accuracy is +/-0.1% (Normal) / +/-0.5% (Fast) and operating temperature is up to 75°C — confirmed by ET-7000 Series Specifications
confirmed: CJC Temperature is mapped to 0-based register 143 (30143) — confirmed by ET-7018Z/PET-7018Z Modbus Address Mapping

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.

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