Schneider Electric ATV320 Modbus register map

Also searched as: Altivar Machine ATV320 · ATV320U · ATV320D

1,071 Modbus registers of the Schneider Electric ATV320, with the address on the wire, the 30001-style reference, data type, byte order, unit and scale. Transcribed from ATV320 - communication parameters addresses (V3.5).

Altivar Machine ATV320 variable speed drive; every parameter is a 16-bit holding register at its logic address.

Registers Read it by name

Device type: Variable speed drive
Registers: 1,071
Interfaces: Modbus RTU, Modbus TCP
Byte order (multi-register values): ABCD
Serial settings: 19200 baud, 8 data bits, even parity, 1 stop bit

Hardware verification

Not yet verified on hardware. The map is transcribed from the vendor document and checked against it by script; check the first readings against the device display.

Verify it on your device What the levels mean

Connection notes

The Modbus address of the drive is OFF from the factory; set [Modbus Address] (Add) before connecting.
Modbus TCP needs an Ethernet communication module.
Parameter codes (ETA, CMD, LFR...) are in each register's notes; the drive's display uses the same codes.
Writing CMD or setpoints moves the motor. Read-only access is the safe default.

Registers

Grouped as in the vendor document. Measurement, energy and identity groups are shown (57 registers); open any other group to load it.

Actual values parameters 11 registers

Name and key	Reference	Address	Type	Unit	Scale
Output velocity`rfrd`	48605	0x219C	int16	rpm
Output frequency`rfr`	43203	0x0C82	int16	Hz	× 0.1
Motor torque`otr`	43206	0x0C85	int16	%	× 0.1
Motor current`lcr`	43205	0x0C84	uint16	A	× 0.1
Motor voltage`uop`	43209	0x0C88	uint16	V
Motor power`opr`	43212	0x0C8B	int16	%
AO1 physical value without filter`sao1`	45296	0x14AF	int16
Motor speed`spd`	412005	0x2EE4	uint16
PLC encoder pulse`puc`	45612	0x15EB	uint16
Output value Customer`spd1`	412009	0x2EE8	uint16		× 0.01
Ratio D-Axis Current Error`rdae`	49677	0x25CC	int16	%	× 0.1

Measurement parameters 14 registers

Name and key	Reference	Address	Type	Unit	Scale
Line mains voltage`uln`	43208	0x0C87	uint16	V	× 0.1
Drive thermal state`thd`	43210	0x0C89	uint16	%
Motor thermal state`thr`	49631	0x259E	uint16	%
Motor run time`rth`	43232	0x0C9F	uint16
Power on time`pth`	43234	0x0CA1	uint16
AI1 physical value without filter`sai1`	45292	0x14AB	int16	V	× 0.001
AI2 physical value without filter`sai2`	45293	0x14AC	int16	V	× 0.001
AI3 physical value without filter`sai3`	45294	0x14AD	int16	mA	× 0.001
AI1 input physical image (MAX = 8192)`ai1i`	45223	0x1466	int16
AI2 input physical image (MAX = 8192)`ai2i`	45224	0x1467	int16
AI3 input physical image (MAX = 8192)`ai3i`	45225	0x1468	int16
Power consumption`aph`	43231	0x0C9E	uint16
IGBT alarm counter`tac`	43236	0x0CA3	uint16	s
Min IGBT frequency time`tac2`	43243	0x0CAA	uint16	s

Status parameters 20 registers

Name and key	Reference	Address	Type
Drivecom state register`eta`	43202	0x0C81	bitfield16
Drive state`hmis`	43241	0x0CA8	uint16
Extended state register`eti`	43207	0x0C86	bitfield16
Reference channel`crc`	48442	0x20F9	bitfield16
Active command channel`ccc`	48443	0x20FA	bitfield16
Active configuration`cnfs`	48021	0x1F54	uint16
Tune selection`stun`	49618	0x2591	uint16
Status of motor tune in term of saliency`smot`	49646	0x25AD	uint16
EtherCAT slave status`ecss`	46691	0x1A22	uint16
EtherCAT address`ecaa`	46693	0x1A24	uint16
DRIVECOM : Status word`etad`	48604	0x219B	bitfield16
Logic result status 1 (PSL 000-015)`lrs1`	43251	0x0CB2	bitfield16
Logic result status 2 (PSL 016-031)`lrs2`	43252	0x0CB3	bitfield16
Logic result status 3 (PSL 032-047)`lrs3`	43253	0x0CB4	bitfield16
Logic result status 4 (PSL 048-063)`lrs4`	43254	0x0CB5	bitfield16
Logic result status 5 (PSL 064-079)`lrs5`	43255	0x0CB6	bitfield16
Logic result status 6 (PSL 080-095)`lrs6`	43256	0x0CB7	bitfield16
Logic result status 7 (PSL 096-111)`lrs7`	43257	0x0CB8	bitfield16
Logic result status 8 (PSL 112-127)`lrs8`	43258	0x0CB9	bitfield16
IGBT alarm Nb`ntj`	43242	0x0CA9	uint16

Identification parameters 12 registers

Name and key	Reference	Address	Type	Unit	Scale
Drive nominal rating`ncv`	43012	0x0BC3	uint16
Drive mains voltage`vcal`	43013	0x0BC4	uint16
Drive nominal current`inv`	43018	0x0BC9	uint16	A	× 0.1
Drive software version`vdp`	43303	0x0CE6	uint16
Device name (char 1 and 2)`pan0`	43341	0x0D0C	uint16
Device name (char 3 and 4)`pan1`	43342	0x0D0D	uint16
Device name (char 5 and 6)`pan2`	43343	0x0D0E	uint16
Device name (char 7 and 8)`pan3`	43344	0x0D0F	uint16
Device name (char 9 and 10)`pan4`	43345	0x0D10	uint16
Device name (char 11 and 12)`pan5`	43346	0x0D11	uint16
Device name (char 13 and 14)`pan6`	43347	0x0D12	uint16
Device name (char 15 and 16)`pan7`	43348	0x0D13	uint16

Control parameters 3 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Setpoint parameters 6 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Reference parameters 8 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

I/O parameters 13 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Fault parameters 8 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

History parameters 154 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Communication parameters 19 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

CiA 402 settings 10 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Configuration management 3 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Parameter set switching 64 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Configuration and settings 524 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Safety function 153 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Function blocks 49 registers

Name and key	Reference	Address	Type	Byte order	Unit	Scale

Source documents

ATV320 - communication parameters addresses , Schneider Electric, NVE41316, V3.5 (accessed 2026-10-31)
Altivar Machine ATV320 Modbus Serial Link Manual , Schneider Electric, NVE41308, 01 (accessed 2026-10-31) Serial defaults, and the example frame showing that logic addresses are sent unchanged.

View this map on GitHub (YAML)

Read it by name

Read the ATV320 with an AI assistant

The Proxus Industrial MCP Server includes this map. Set it on the device, and Claude, Cursor or VS Code reads registers by key with the right type, byte order, scale and unit. It only reads.

Get the MCP server

proxus-mcp.json

{
  "devices": {
    "atv320-1": {
      "protocol": "modbus-tcp",
      "host": "192.168.10.40",
      "unit_id": 1,
      "map": "schneider-electric/atv320"
    }
  }
}

Ask your assistant

Read rfrd, rfr, otr from atv320-1.

The tool call it makes

read_named(device: "atv320-1", keys: ["rfrd", "rfr", "otr"])

Have this device? Verify the map.

Ask your assistant to run verify_device_map. It reads every register once, read-only, checks that the values are plausible and asks you to compare two values with the display. You get a report and a prefilled GitHub issue to submit; your name goes on this map’s verified list.

How verification works

Collecting from many devices?

Proxus reads Modbus TCP and RTU devices next to the machines, keeps the history and delivers the values to dashboards, databases and AI.

Modbus in Proxus Industrial connectivity

Data: Modbus Register Maps by Proxus contributors, CC BY 4.0.