ATO RS485 4-Channel Analog Output Modbus register map
4-channel RS485 Modbus RTU analog output module (4-20mA / 0-5V / 0-10V selectable); 12-bit DAC, raw 0–4095 per channel (FC03/06, 8N1, 4800 baud default).
- Unofficial
- 4 registers
- Revision 2
Unofficial: Copied from an unofficial source and not tested. Read it as a draft and check a value on the real device before you rely on the rest. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.
Communication
- Protocol
- Modbus TCP and RTUdefault
- Unit ID
- 1default
- TCP port
- 502default
- Serial
- 9600 8E1 · 9600 baud, 8 data bits, even parity, 1 stop bit defaults
- Byte / word order
- ABCD · bytes big-endian, words high first
- Addresses
- 0-based
Connection values are defaults: the device may be configured differently.
Map
- Registers
- 4 holding registers
- Revision
- 2
- Added
- ()
- File
- maps/ato/rs485-4-channel-analog-output.mbmap.json · 2 KB · history
- SHA-256
- b163a5c55d2553735ea4654ba8800d30edf9eafbdd8d13e2cee6c93797cbec23
- Manufacturer
- ato.com
Sources and notes
Source: Omni Console device library (OmniCoreST), modbus-library/ato-rs485-4ch-analog-out.toml; Source: ato-rs485-4-20ma-0-10v-converter-4ch-modbus.pdf. Not verified against the manufacturer's documentation
- ATO RS485 4-Channel Analog Output.
- Converted automatically from the Omni Console device library (OmniCoreST).
- Not verified against the manufacturer's documentation.
- Corrections are welcome (CONTRIBUTING.md). Change x_status once this table has been checked against the manual.
- | ATO RS485 to 4-20mA/0-5V/0-10V Converter — 4 Channel
- |
- | Source: ato-rs485-4-20ma-0-10v-converter-4ch-modbus.pdf
- | - 4-channel analog output module (current or voltage, selectable per hardware jumper).
- | - Modbus RTU, FC03/04/06, 8N1, factory default 4800 baud, slave address 1.
- | - All addresses are raw protocol addresses (0x0000 = 0 decimal).
- | - Channel values: u16, 12-bit DAC, range 0–4095.
- | 4-20mA: mA = (Rx/4095)×16 + 4; 0-5V: V = (Rx/4095)×5; 0-10V: V = (Rx/4095)×10.
| Area | Address | Name | Type | Access | Unit | Scale | Description |
|---|---|---|---|---|---|---|---|
| HR | 0 | uint16 | R | ||||
| HR | 1 | uint16 | R | ||||
| HR | 2 | uint16 | R | ||||
| HR | 3 | uint16 | R |
No registers match
Try part of the name, an address (decimal or 0x hex) or clear the filters.
Help improve this map
- I tested it on a deviceReport whether it worked, even if you did not write the map.
- Suggest a correctionEdit the file on GitHub; it opens a pull request.
- Report a problemA wrong address, type, scale or byte order.
- Read the formatWhat each key of the file means (SPEC.md).