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  3. Ikron 03-D

KRON Ikron 03-D Modbus register map

Three-phase energy meter: voltages, currents, frequency, power, power factor, active and reactive energy, and communication settings

  • Official
  • 43 registers
  • Modbus RTU
  • Revision 1 · 2026-11-10

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.

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Communication

Protocol
Modbus RTU
Unit ID
1
Serial
9600 8E1 · 9600 baud, 8 data bits, even parity, 1 stop bit
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
43 holding registers
Groups
5
Revision
1 · 2026-11-10
Added
()
File
maps/kron/ikron-03-d.mbmap.json · 8 KB · history
SHA-256
7388fcb08cc118449cd22bffb09f79a9800166595de165d1e2f37f8eb991ca94
Manufacturer
kron.com.br

Sources and notes

Source: KRON, "Protocolo Modbus – Ikron 03-D", rev. 1.0 (May 2018)

  • Read with FC03 and write with FC06 or FC16. The document numbers the registers from 40001 and gives the hex address as the number minus 40001 (40015 is 0x000E), which is what this map uses.
  • Values are IEEE 754 floats sent with the most significant byte first (the document's example reads 43 66 4C CD as 230.3 V).
  • The factory settings are 9600 bps, 8 data bits, even parity and 1 stop bit (8E1). The document does not give a default slave address: 1 is its example.
  • The document does not state units for power or energy, so those registers have none. The date and time registers (0x003C to 0x003F, BCD) and the firmware and hardware versions (floats at 0x0004 and 0x0006) are not mapped: the table in the document is garbled there.
AreaAddressNameTypeAccessUnitScaleDescription
HR 0 float32 ABCD R Sent as a float, like the other values
HR 2 uint16 RW
HR 3 uint16 RW bps The value is the speed itself: 1200, 2400, 4800 or 9600 (default 9600)
HR 9 float32 ABCD RW Pulses per kWh (the manual writes 10 as 41 20 00 00 to 40010)
HR 14 float32 ABCD R V
HR 16 float32 ABCD R V
HR 18 float32 ABCD R V
HR 20 float32 ABCD R Hz
HR 22 float32 ABCD R A
HR 24 float32 ABCD R A
HR 26 float32 ABCD R A
HR 28 float32 ABCD R
HR 30 float32 ABCD R
HR 32 float32 ABCD R
HR 34 float32 ABCD R
HR 36 float32 ABCD R
HR 38 float32 ABCD R
HR 40 float32 ABCD R
HR 42 float32 ABCD R
HR 44 float32 ABCD R
HR 46 float32 ABCD R
HR 48 float32 ABCD R
HR 50 float32 ABCD R
HR 52 float32 ABCD R
HR 54 float32 ABCD R
HR 56 float32 ABCD R
HR 58 float32 ABCD R
HR 264 float32 ABCD R
HR 266 float32 ABCD R
HR 268 float32 ABCD R
HR 270 float32 ABCD R
HR 272 float32 ABCD R
HR 274 float32 ABCD R
HR 276 float32 ABCD R
HR 278 float32 ABCD R
HR 288 float32 ABCD R
HR 290 float32 ABCD R
HR 292 float32 ABCD R
HR 294 float32 ABCD R
HR 296 float32 ABCD R
HR 298 float32 ABCD R
HR 300 float32 ABCD R
HR 302 float32 ABCD R

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