Lovato Electric DMG210 Modbus register map
Digital multimeter
- Verified
- 67 registers
- Modbus RTU
- Revision 3 · 2026-11-10
Verified: Tested on a real device.
Communication
- Protocol
- Modbus RTU
- Unit ID
- 1
- 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
- 1-based · wire address = address − 1
Connection values are defaults: the device may be configured differently.
Map
- Registers
- 67 holding registers
- Groups
- 5
- Revision
- 3 · 2026-11-10
- Added
- ()
- File
- maps/lovato-electric/dmg210.mbmap.json · 13 KB · history
- SHA-256
- bae415deadc7e9e3c078b4f52837ec8b0e39302dda0cf4d20f274f0afe56e974
- Manufacturer
- lovatoelectric.com
Sources and notes
- DMG series - Modbus communication protocol · version I317 I GB 02_22, 2022-02-07 tables 2 and 3
Source: Lovato Electric, DMG series Modbus communication protocol, I317 I GB 02_22
- Addresses are those of the manual; the address sent in the request is one less (address_base 1).
- Function 03 and 04 both read the measurements. 32- and 64-bit values are sent high word first.
- The model is reported by function 17 (Report Slave ID): type code 0x79.
- Max (HI), min (LO), average and max demand values, harmonics, I/O and setup parameters (tables 4-8 of the manual) are not listed here.
- Tested on a DMG210 read over a Modbus TCP gateway, November 2026: all 65 registers read without errors. Checked: voltages, currents, power, power factor, THD, neutral current, asymmetry, the 32-bit and 64-bit energy counters (same values), hour meters, phase sequence and the word order (big). Frequency read 5003, so its scale is 0.01 (50.03 Hz), not 0.001 as this map had before.
| Area | Address | Name | Type | Access | Unit | Scale | Description |
|---|---|---|---|---|---|---|---|
| HR | 2 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 4 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 6 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 8 | uint32 ABCD | R | A | ×0.0001 | ||
| HR | 10 | uint32 ABCD | R | A | ×0.0001 | ||
| HR | 12 | uint32 ABCD | R | A | ×0.0001 | ||
| HR | 14 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 16 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 18 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 20 | int32 ABCD | R | W | ×0.01 | ||
| HR | 22 | int32 ABCD | R | W | ×0.01 | ||
| HR | 24 | int32 ABCD | R | W | ×0.01 | ||
| HR | 26 | int32 ABCD | R | var | ×0.01 | ||
| HR | 28 | int32 ABCD | R | var | ×0.01 | ||
| HR | 30 | int32 ABCD | R | var | ×0.01 | ||
| HR | 32 | uint32 ABCD | R | VA | ×0.01 | ||
| HR | 34 | uint32 ABCD | R | VA | ×0.01 | ||
| HR | 36 | uint32 ABCD | R | VA | ×0.01 | ||
| HR | 38 | int32 ABCD | R | ×0.0001 | |||
| HR | 40 | int32 ABCD | R | ×0.0001 | |||
| HR | 42 | int32 ABCD | R | ×0.0001 | |||
| HR | 50 | uint32 ABCD | R | Hz | ×0.01 | ||
| HR | 52 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 54 | uint32 ABCD | R | V | ×0.01 | ||
| HR | 56 | uint32 ABCD | R | A | ×0.0001 | ||
| HR | 58 | int32 ABCD | R | W | ×0.01 | ||
| HR | 60 | int32 ABCD | R | var | ×0.01 | ||
| HR | 62 | uint32 ABCD | R | VA | ×0.01 | ||
| HR | 64 | int32 ABCD | R | ×0.0001 | |||
| HR | 66 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 68 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 70 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 72 | uint32 ABCD | R | A | ×0.0001 | ||
| HR | 84 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 86 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 88 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 90 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 92 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 94 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 96 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 98 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 100 | uint32 ABCD | R | % | ×0.01 | ||
| HR | 6688 | uint32 ABCD | R | kWh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6690 | uint32 ABCD | R | kWh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6692 | uint32 ABCD | R | kvarh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6694 | uint32 ABCD | R | kvarh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6696 | uint32 ABCD | R | kVAh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6698 | uint32 ABCD | R | kWh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6700 | uint32 ABCD | R | kWh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6702 | uint32 ABCD | R | kvarh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6704 | uint32 ABCD | R | kvarh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6706 | uint32 ABCD | R | kVAh | ×0.01 | Rolls over after 19 999 999.99 | |
| HR | 6944 | uint64 ABCD | R | kWh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6948 | uint64 ABCD | R | kWh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6952 | uint64 ABCD | R | kvarh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6956 | uint64 ABCD | R | kvarh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6960 | uint64 ABCD | R | kVAh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6964 | uint64 ABCD | R | kWh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6968 | uint64 ABCD | R | kWh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6972 | uint64 ABCD | R | kvarh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6976 | uint64 ABCD | R | kvarh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 6980 | uint64 ABCD | R | kVAh | ×0.01 | 64-bit counter from software revision 07; older revisions roll over like the 32-bit counters | |
| HR | 7680 | uint32 ABCD | R | s | |||
| HR | 7682 | uint32 ABCD | R | s | |||
| HR | 8308 | uint16 | R | ||||
| HR | 12033 | uint16 | W | Write 1 | |||
| HR | 12272 | uint16 | W | Write with function 06; send a reboot after the parameter commands (13-15) |
No registers match
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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).