verified connector library

Allen-Bradley PowerFlex 4/40/4M drive (DSI Modbus)

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.

pointaddress (0-based)typescaleunit
logic_command8192U161
speed_reference8193U160.1Hz
logic_status8448U161
drive_error_codes8449U161
feedback8451U160.1Hz
output_freq1U160.1Hz
commanded_freq2U160.1
output_current3U160.01
output_voltage4U160.1
dc_bus_voltage5U161
drive_status6U161
fault_1_code7U161
fault_2_code8U161
fault_3_code9U161
control_source12U161
contrl_in_status13U161
dig_in_status14U161
comm_status15U161
elapsed_run_time18U1610
analog_in_0_10v20U160.1
analog_in_4_20ma21U160.1
drive_temp22U161

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 100; FC 03,06,16; Power to drive must be cycled before any changes will affect drive operation. Supported formats include RTU 8-N-1, 8-E-1, 8-O-1, 8-N-2, 8-E-2, and 8-O-2.

⚠ Risk of equipment damage exists if writing parameter data to Non-Volatile Storage (NVS) frequently. NVS will quickly exceed its life cycle. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsControl Terminal 16, RJ45 DSI port pins 4 and 5
A/B polarityTxRxD+, TxRxD-
termination120 ohm resistor at each end of the network cable
connectorRJ45
isolationNetwork Common is internally tied to I/O Terminal 04 (Digital Common)
shield/groundThe shield should be grounded at ONLY ONE location.
wiring notesOnly pins 4 and 5 on the RJ45 plug should be wired.
protocol notesModbus devices can be 0-based or 1-based. Register addresses may need to be offset by +1 depending on the master.
identification notesTo access drive parameters, the Modbus register address equals the parameter number.
power120V AC 1-Phase, 240V AC 1-Phase, 240V AC 3-Phase, 480V AC 3-Phase
environmentAmbient Operating Temperature: -10°C to 40°C (0 mm clearance) or 50°C (25 mm clearance). Storage: -40°C to +85°C, 0% to 95% RH non-condensing.
certificationsUL, CE
doc revisionPublication 22F-UM001D-EN-E
firmware applicabilityFRN 1.xx - 2.xx

generated by gemini:gemini-3.5-flash · harvested from https://vfds.com/content/manuals/allenbradley/allenbradley-powerflex4m.pdf (Rockwell Automation); 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.

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.