Eastron SDM630MCT Modbus register map
Also covers SDM630MCT-2T
Three-phase DIN rail energy meter for current transformers (1 A or 5 A secondary), with two tariffs on the SDM630MCT-2T. Values a wiring system does not use read 0
- Official
- 158 registers
- Modbus RTU
- Revision 2 · 2026-10-17
- Identity: model, serial number
Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.
Communication
- Protocol
- Modbus RTU
- Unit ID
- 1
- Serial
- 9600 8N1 · 9600 baud, 8 data bits, none parity, 1 stop bit
- Byte / word order
- ABCD · bytes big-endian, words high first
- Addresses
- 0-based
- Max read
- 60 registers per request
Connection values are defaults: the device may be configured differently.
Map
- Registers
- 21 holding registers, 137 input registers
- Groups
- 7
- Revision
- 2 · 2026-10-17
- Added
- ()
- File
- maps/eastron/sdm630mct.mbmap.json · 30 KB · history
- SHA-256
- 3fb01e1ec60224a7178b7fc4174595d6fb9e2fb902c531986b57e5dea968a247
- Manufacturer
- eastroneurope.com
Device identity
What a tool can read to check that this map fits the connected device (SPEC.md section 4.7). Registers with a role are read like any other register.
| Role | Register | Address | Type | Values |
|---|---|---|---|---|
| Serial number | Serial number | holding 64512 | uint32 ABCD | |
| Model | Meter code | holding 64514 | uint16 | 0x0079 = SDM630MCT |
Sources and notes
Source: Eastron, "Eastron SDM630MCT-2T Smart Meter Modbus Protocol Implementation", V1.2
- Measurements are float32 input registers (FC04); settings are float32 holding registers (FC03 read, FC16 write, one parameter per write).
- Requests must cover an even number of registers; at most 30 values per read.
- Protected settings need the password (default 1000) written to the password register; it times out after one minute unless the password or password lock register is read.
- The tariff registers (1300h-1382h) are for the two-tariff SDM630MCT-2T.
| Area | Address | Name | Type | Access | Unit | Scale | Description |
|---|---|---|---|---|---|---|---|
| IR | 0 | float32 ABCD | R | V | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 2 | float32 ABCD | R | V | Valid on 3P4W; reads 0 otherwise | ||
| IR | 4 | float32 ABCD | R | V | Valid on 3P4W; reads 0 otherwise | ||
| IR | 6 | float32 ABCD | R | A | |||
| IR | 8 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 10 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 12 | float32 ABCD | R | W | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 14 | float32 ABCD | R | W | Valid on 3P4W; reads 0 otherwise | ||
| IR | 16 | float32 ABCD | R | W | Valid on 3P4W; reads 0 otherwise | ||
| IR | 18 | float32 ABCD | R | VA | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 20 | float32 ABCD | R | VA | Valid on 3P4W; reads 0 otherwise | ||
| IR | 22 | float32 ABCD | R | VA | Valid on 3P4W; reads 0 otherwise | ||
| IR | 24 | float32 ABCD | R | var | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 26 | float32 ABCD | R | var | Valid on 3P4W; reads 0 otherwise | ||
| IR | 28 | float32 ABCD | R | var | Valid on 3P4W; reads 0 otherwise | ||
| IR | 30 | float32 ABCD | R | Valid on 3P4W, 1P2W; reads 0 otherwise | |||
| IR | 32 | float32 ABCD | R | Valid on 3P4W; reads 0 otherwise | |||
| IR | 34 | float32 ABCD | R | Valid on 3P4W; reads 0 otherwise | |||
| IR | 36 | float32 ABCD | R | ° | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 38 | float32 ABCD | R | ° | Valid on 3P4W; reads 0 otherwise | ||
| IR | 40 | float32 ABCD | R | ° | Valid on 3P4W; reads 0 otherwise | ||
| IR | 42 | float32 ABCD | R | V | Valid on 3P4W; reads 0 otherwise | ||
| IR | 46 | float32 ABCD | R | A | |||
| IR | 48 | float32 ABCD | R | A | |||
| IR | 52 | float32 ABCD | R | W | |||
| IR | 56 | float32 ABCD | R | VA | |||
| IR | 60 | float32 ABCD | R | var | |||
| IR | 62 | float32 ABCD | R | ||||
| IR | 66 | float32 ABCD | R | ° | |||
| IR | 70 | float32 ABCD | R | Hz | |||
| IR | 72 | float32 ABCD | R | kWh | |||
| IR | 74 | float32 ABCD | R | kWh | |||
| IR | 76 | float32 ABCD | R | kvarh | |||
| IR | 78 | float32 ABCD | R | kvarh | |||
| IR | 80 | float32 ABCD | R | kVAh | |||
| IR | 82 | float32 ABCD | R | Ah | |||
| IR | 84 | float32 ABCD | R | W | |||
| IR | 86 | float32 ABCD | R | W | |||
| IR | 100 | float32 ABCD | R | VA | |||
| IR | 102 | float32 ABCD | R | VA | |||
| IR | 104 | float32 ABCD | R | A | Valid on 3P4W; reads 0 otherwise | ||
| IR | 106 | float32 ABCD | R | A | Valid on 3P4W; reads 0 otherwise | ||
| IR | 108 | float32 ABCD | R | var | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 110 | float32 ABCD | R | var | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 200 | float32 ABCD | R | V | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 202 | float32 ABCD | R | V | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 204 | float32 ABCD | R | V | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 206 | float32 ABCD | R | V | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 224 | float32 ABCD | R | A | Valid on 3P4W; reads 0 otherwise | ||
| IR | 234 | float32 ABCD | R | % | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 236 | float32 ABCD | R | % | Valid on 3P4W; reads 0 otherwise | ||
| IR | 238 | float32 ABCD | R | % | Valid on 3P4W; reads 0 otherwise | ||
| IR | 240 | float32 ABCD | R | % | |||
| IR | 242 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 244 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 248 | float32 ABCD | R | % | Valid on 3P4W, 1P2W; reads 0 otherwise | ||
| IR | 250 | float32 ABCD | R | % | |||
| IR | 254 | float32 ABCD | R | ° | |||
| IR | 258 | float32 ABCD | R | A | |||
| IR | 260 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 262 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 264 | float32 ABCD | R | A | |||
| IR | 266 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 268 | float32 ABCD | R | A | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 334 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 336 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 338 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 340 | float32 ABCD | R | % | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 342 | float32 ABCD | R | kWh | |||
| IR | 344 | float32 ABCD | R | kvarh | |||
| IR | 346 | float32 ABCD | R | kWh | |||
| IR | 348 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 350 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 352 | float32 ABCD | R | kWh | |||
| IR | 354 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 356 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 358 | float32 ABCD | R | kWh | |||
| IR | 360 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 362 | float32 ABCD | R | kWh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 364 | float32 ABCD | R | kvarh | |||
| IR | 366 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 368 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 370 | float32 ABCD | R | kvarh | |||
| IR | 372 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 374 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 376 | float32 ABCD | R | kvarh | |||
| IR | 378 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 380 | float32 ABCD | R | kvarh | Valid on 3P4W, 3P3W; reads 0 otherwise | ||
| IR | 4876 | float32 ABCD | R | kWh | |||
| IR | 4878 | float32 ABCD | R | kWh | |||
| IR | 4884 | float32 ABCD | R | kWh | |||
| IR | 4886 | float32 ABCD | R | kWh | |||
| IR | 4892 | float32 ABCD | R | kWh | |||
| IR | 4894 | float32 ABCD | R | kWh | |||
| IR | 4900 | float32 ABCD | R | kvarh | |||
| IR | 4902 | float32 ABCD | R | kvarh | |||
| IR | 4908 | float32 ABCD | R | kvarh | |||
| IR | 4910 | float32 ABCD | R | kvarh | |||
| IR | 4916 | float32 ABCD | R | kvarh | |||
| IR | 4918 | float32 ABCD | R | kvarh |
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).