> For the complete documentation index, see [llms.txt](https://docs.smart-stuff.nl/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.smart-stuff.nl/p1-modbus-dongle/firmware-v2-current/register-mapping/em111.md). # EM111 ## Mapping behaviour * Device Manager mapping value: `14` * Profile: `EM111` * Read function codes: `FC03` and `FC04` * Register widths: mixed 16-bit and 32-bit * 32-bit word order: low word first (LSW-MSW) * Unmapped register handling: Zero-filled {% hint style="info" %} Device ID, baud rate and serial format are global firmware v2 settings. They are not changed when this mapping is selected. {% endhint %} ## Register overview | Address (decimal / hex) | Words | Type | Source or fixed value | Conversion | Missing | | ----------------------- | ----: | -------- | ---------------------------------- | ----------------------------- | --------------- | | `0` / `0x0000` | 2 | `int32` | `voltage_l1_v` | scale 10 | source\_default | | `2` / `0x0002` | 2 | `int32` | `current_l1_a` | scale 1000 | source\_default | | `4` / `0x0004` | 2 | `int32` | `net_power_l1_kw` | scale 10000 | source\_default | | `6` / `0x0006` | 2 | `int32` | `apparent_power_total_va` | scale 10 | zero | | `8` / `0x0008` | 2 | `int32` | `reactive_power_import_kw` | scale 10000 | zero | | `10` / `0x000A` | 2 | `int32` | `peak_pwr_last_q_kw` | scale 10000 | zero | | `12` / `0x000C` | 2 | `int32` | `peak_pwr_last_q_kw` | scale 10000 | zero | | `14` / `0x000E` | 1 | `int16` | `direction_l1` | scale 1000 | source\_default | | `15` / `0x000F` | 1 | `int16` | `constant 500` | — | source\_default | | `16` / `0x0010` | 2 | `int32` | `energy_delivered_total_kwh` | scale 10 | source\_default | | `18` / `0x0012` | 2 | `int32` | `reactive_energy_total_import_kwh` | scale 10 | zero | | `20` / `0x0014` | 2 | `int32` | `energy_delivered_total_kwh` | scale 10 | source\_default | | `22` / `0x0016` | 2 | `int32` | `reactive_energy_total_import_kwh` | scale 10 | zero | | `24` / `0x0018` | 2 | `int32` | `energy_delivered_tariff1_kwh` | scale 10 | source\_default | | `26` / `0x001A` | 2 | `int32` | `energy_delivered_tariff2_kwh` | scale 10 | source\_default | | `28` / `0x001C` | 2 | `int32` | `constant 0` | — | source\_default | | `30` / `0x001E` | 2 | `int32` | `constant 0` | — | source\_default | | `32` / `0x0020` | 2 | `int32` | `energy_returned_total_kwh` | scale 10 | source\_default | | `34` / `0x0022` | 2 | `int32` | `reactive_energy_total_export_kwh` | scale 10 | zero | | `36` / `0x0024` | 2 | `int32` | `constant 0` | — | source\_default | | `38` / `0x0026` | 2 | `int32` | `constant 0` | — | source\_default | | `40` / `0x0028` | 2 | `int32` | `constant 0` | — | source\_default | | `42` / `0x002A` | 2 | `int32` | `constant 0` | — | source\_default | | `44` / `0x002C` | 2 | `int32` | `constant 0` | — | source\_default | | `46` / `0x002E` | 2 | `int32` | `constant 0` | — | source\_default | | `48` / `0x0030` | 2 | `int32` | `constant 0` | — | source\_default | | `50` / `0x0032` | 2 | `int32` | `constant 0` | — | source\_default | | `52` / `0x0034` | 2 | `int32` | `constant 0` | — | source\_default | | `256` / `0x0100` | 2 | `int32` | `current_l1_a` | scale 1000 | source\_default | | `258` / `0x0102` | 2 | `int32` | `voltage_l1_v` | scale 10 | source\_default | | `260` / `0x0104` | 2 | `int32` | `constant 0` | — | source\_default | | `262` / `0x0106` | 2 | `int32` | `net_power_l1_kw` | scale 10000 | source\_default | | `264` / `0x0108` | 2 | `int32` | `apparent_power_total_va` | scale 10 | zero | | `266` / `0x010A` | 2 | `int32` | `reactive_power_import_kw` | scale 10000 | zero | | `268` / `0x010C` | 2 | `int32` | `direction_l1` | scale 1000 | source\_default | | `270` / `0x010E` | 2 | `int32` | `constant 0` | — | source\_default | | `272` / `0x0110` | 2 | `int32` | `constant 500` | — | source\_default | | `274` / `0x0112` | 2 | `int32` | `energy_delivered_total_kwh` | scale 10 | source\_default | | `276` / `0x0114` | 2 | `int32` | `reactive_energy_total_import_kwh` | scale 10 | zero | | `278` / `0x0116` | 2 | `int32` | `energy_returned_total_kwh` | scale 10 | source\_default | | `280` / `0x0118` | 2 | `int32` | `reactive_energy_total_export_kwh` | scale 10 | zero | | `282` / `0x011A` | 2 | `int32` | `peak_pwr_last_q_kw` | scale 10000 | zero | | `284` / `0x011C` | 2 | `int32` | `peak_pwr_last_q_kw` | scale 10000 | zero | | `328` / `0x0148` | 2 | `int32` | `energy_delivered_total_kwh` | scale 10 | source\_default | | `330` / `0x014A` | 2 | `int32` | `reactive_energy_total_import_kwh` | scale 10 | zero | | `338` / `0x0152` | 2 | `int32` | `energy_delivered_tariff1_kwh` | scale 10 | source\_default | | `340` / `0x0154` | 2 | `int32` | `energy_delivered_tariff2_kwh` | scale 10 | source\_default | | `342` / `0x0156` | 2 | `int32` | `constant 0` | — | source\_default | | `344` / `0x0158` | 2 | `int32` | `constant 0` | — | source\_default | | `346` / `0x015A` | 2 | `int32` | `constant 0` | — | source\_default | | `348` / `0x015C` | 2 | `int32` | `constant 0` | — | source\_default | | `350` / `0x015E` | 2 | `int32` | `constant 0` | — | source\_default | | `352` / `0x0160` | 2 | `int32` | `constant 0` | — | source\_default | | `384` / `0x0180` | 2 | `int32` | `constant 0` | — | source\_default | | `386` / `0x0182` | 2 | `int32` | `constant 0` | — | source\_default | | `770` / `0x0302` | 1 | `uint16` | `constant 3` | — | source\_default | | `771` / `0x0303` | 1 | `uint16` | `pre40` | — | source\_default | | `4098` / `0x1002` | 1 | `uint16` | `constant 0` | — | source\_default | | `8192` / `0x2000` | 1 | `int16` | `dev_id` | — | source\_default | | `8193` / `0x2001` | 1 | `int16` | `baudrate` | baud\_index\_em330 | source\_default | | `8194` / `0x2002` | 1 | `int16` | `serial_config_offset` | parity\_index\_none\_or\_even | source\_default | | `8195` / `0x2003` | 1 | `int16` | `serial_config_offset` | stop\_bits\_count | source\_default | | `8196` / `0x2004` | 1 | `int16` | `constant 50` | — | source\_default | ## Reading the table * **Words** is the number of consecutive 16-bit Modbus registers occupied by the entry. * **Source** names correspond directly to the firmware v2 recipe source. * **Conversion** records the exact scale, transform or direction handling configured by the recipe. * This page is generated from `mb_recipe.h` and `modbus_profiles.h` for firmware 2.3.0.