ASCO 5140 connectivity module

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
line_to_line_voltage_ab	16	U16	1	V

link settings as documented (unverified): TCP; Modbus/TCP is always enabled. Default TCP port is 10001. Default IP address is 169.254.1.1.

bench facts as documented (unverified)

terminals	Power terminal plug provided
connector	RJ-45
wiring notes	DIN mount vertical. Ports: 2 (yellow stripe) for ASCO devices, 4 (blue stripe) for Ethernet. Dimensions: 4" x 5" x 2" (4 cm, 11 cm, 10 cm)
protocol notes	The Modbus register map is the same as that of the downstream device. The 5140 QEM maps the Modbus data using the downstream device address.
power	24 V dc, 1.7 W
environment	-4° F to 158° F (-20° C to +70° C)
doc revision	381333-417 D

generated by gemini:gemini-3.5-flash · harvested from https://steadypower.com/documents/Asco5140-ConnectivityModule-Manual-381333-417_D_1.pdf (ASCO Power); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; 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.