Delta C2000/CP2000 drive

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
master_speed	8451	U16	0.01	Hz
master_current	8452	U16	0.01	A
master_torque	8459	I16	0.01	torque
plc_d25_speed_setpoint	4121	U16	0.01	Hz
plc_d26_slave_current_read	4122	U16	0.01	A
plc_d27_slave_speed_read	4123	U16	0.01	Hz
plc_d28_slave_torque_read	4124	U16	0.01
plc_d29_master_current	4125	U16	0.01
plc_d30_speed_difference	4126	I16	0.01
plc_d31_current_difference	4127	I16	0.01
plc_d35_master_speed_display	4131	U16	1
plc_d37_slave_speed_display	4133	U16	1
plc_d42_slave_current	4138	U16	0.01	A
plc_d43_slave_speed	4139	U16	0.01	Hz
plc_d44_slave_torque	4140	I16	0.01	torque
plc_d45_slave_speed_setpoint	4141	U16	0.01	Hz

link settings as documented (unverified): RTU/ASCII; default 9600 8E1; unit ID 4; FC 03,06

bench facts as documented (unverified)

terminals	SG-, SG+, GND
connector	RJ45
wiring notes	Two RJ45 sockets which are hard-wired. Pin 4 is SG-, Pin 5 is SG+, Pin 6 is GND, Pin 8 is +9V.
protocol notes	Cannot read and write at the same time; operations must be separated by time/sequenced.
identification notes	Delta C2000/CP2000

generated by gemini:gemini-3.5-flash · harvested from https://delta-ia-tips.com/wp-content/uploads/2016/06/amdc2000modbusmaster0616.pdf (Delta); 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.