{
  "$schema": "https://raw.githubusercontent.com/nobrega8/mbmap-library/main/schema/mbmap-2.schema.json",
  "mbmap": 2,
  "vendor": "Electron do Brasil",
  "model": "IPTE",
  "models": [
    "IPTE"
  ],
  "vendor_website": "electron.com.br",
  "description": "Transformer tap position indicator, Modbus RTU",
  "revision": 1,
  "revised": "2026-11-09",
  "source": "Electron do Brasil, Mapa de Registradores MODBUS RTU, Indicador de Posição IPTE",
  "sources": [
    {
      "title": "Mapa de Registradores MODBUS RTU, Indicador de Posição IPTE",
      "url": "https://electron.com.br/api/downloads/file/mapa_de_registradores_modbus_rtu_ipte.pdf"
    }
  ],
  "notes": [
    "All registers are holding registers. The document numbers them 1 to 68 and calls the type Holding Register (40.000), so the addresses are 1-based (address on the wire = number minus 1). The document does not say so explicitly: if a read fails, try address_base 0.",
    "The document allows 1200 to 57600 bps, 8 data bits, no parity and 1 stop bit. It does not give a default baud rate or slave address: 9600 and 1 are placeholders; the slave address is in register 59.",
    "The Escala column is unclear for the tap position registers (8 to 11 show -1000 or -100 with a range of -50 to 50). They are given here as raw values without scaling: check against the display before applying a scale.",
    "Register 7 (commands) and register 16 (faults) are bit fields, one entry per bit. The command bits are write-only.",
    "Registers 56 and 58 both report the communication protocol, with the labels the document gives for each (DNP 3.0 or Modbus RTU).",
    "The serial number is two registers (62 MSB, 63 LSB), up to 0x98967F. The encoding of the equipment version (68) is not stated, so it has no firmware role.",
    "Register 67 (equipment model) shows 71 as its value, used here as the model identifier.",
    "Written from the manufacturer's document; not tested on a device."
  ],
  "protocol": "rtu",
  "unit_id": 1,
  "baudrate": 9600,
  "parity": "N",
  "databits": 8,
  "stopbits": 1,
  "address_base": 1,
  "byte_order": "big",
  "word_order": "big",
  "x_status": "official",
  "enums": {
    "tap_display_mode": {"0": "Numeric", "1": "Alphanumeric"},
    "pot_init_mode": {"0": "Position from 0 ohm", "1": "Position from the initial resistance"},
    "analog_output": {"0": "0 to 1 mA", "1": "0 to 5 mA", "2": "0 to 10 mA", "3": "0 to 20 mA", "4": "4 to 20 mA"},
    "protocol": {"0": "DNP 3.0", "1": "Modbus RTU"},
    "parity": {"0": "No parity", "1": "Last bit sent is 1", "2": "Last bit sent is 0"},
    "protection": {"0": "Disabled", "1": "Enabled"}
  },
  "registers": [
    {"name": "Initial tap position", "group": "Settings", "area": "holding", "address": 1, "type": "uint16", "access": "RW", "write_min": 1, "write_max": 999},
    {"name": "Final tap position", "group": "Settings", "area": "holding", "address": 2, "type": "uint16", "access": "RW", "write_min": 1, "write_max": 999},
    {"name": "Resistive step", "group": "Settings", "area": "holding", "address": 3, "type": "uint16", "access": "RW", "write_min": 1, "write_max": 999},
    {"name": "Tap display mode", "group": "Settings", "area": "holding", "address": 4, "type": "uint16", "access": "RW", "enum": "tap_display_mode", "description": "How the tap position is shown on the IPTE display"},
    {"name": "Potentiometer reading mode", "group": "Settings", "area": "holding", "address": 5, "type": "uint16", "access": "RW", "enum": "pot_init_mode", "description": "Where the potentiometer crown reading starts"},
    {"name": "Analog output type", "group": "Settings", "area": "holding", "address": 6, "type": "uint16", "access": "RW", "enum": "analog_output"},
    {"name": "Reset minimum position reached", "group": "Commands", "area": "holding", "address": 7, "type": "bool", "bit": 0, "access": "W", "description": "Write 1 to reset the minimum tap position reached"},
    {"name": "Reset maximum position reached", "group": "Commands", "area": "holding", "address": 7, "type": "bool", "bit": 1, "access": "W", "description": "Write 1 to reset the maximum tap position reached"},
    {"name": "Reset equipment", "group": "Commands", "area": "holding", "address": 7, "type": "bool", "bit": 2, "access": "W", "description": "Write 1 to reset the equipment"},
    {"name": "Tap position", "group": "Measurement", "area": "holding", "address": 8, "type": "int16", "access": "R", "description": "Range -50 to 50"},
    {"name": "Minimum tap position reached", "group": "Measurement", "area": "holding", "address": 9, "type": "int16", "access": "R", "description": "Range -50 to 50"},
    {"name": "Maximum tap position reached", "group": "Measurement", "area": "holding", "address": 10, "type": "int16", "access": "R", "description": "Range -50 to 50"},
    {"name": "Previous tap position", "group": "Measurement", "area": "holding", "address": 11, "type": "int16", "access": "R", "description": "Range -50 to 50"},
    {"name": "Position change delay", "group": "Settings", "area": "holding", "address": 12, "type": "uint16", "access": "RW", "write_min": 0, "write_max": 240, "description": "Time between a position change and the signal on the equipment"},
    {"name": "Time left for position change", "group": "Measurement", "area": "holding", "address": 13, "type": "uint16", "access": "RW", "write_min": 0, "write_max": 240},
    {"name": "Crown fault", "group": "Status", "area": "holding", "address": 16, "type": "bool", "bit": 0, "access": "R"},
    {"name": "Maximum tap fault", "group": "Status", "area": "holding", "address": 16, "type": "bool", "bit": 1, "access": "R"},
    {"name": "Minimum tap fault", "group": "Status", "area": "holding", "address": 16, "type": "bool", "bit": 2, "access": "R"},
    {"name": "Communication protocol (register 56)", "group": "Device", "area": "holding", "address": 56, "type": "uint16", "access": "R", "enum": "protocol"},
    {"name": "Parity", "group": "Device", "area": "holding", "address": 57, "type": "uint16", "access": "R", "enum": "parity"},
    {"name": "Communication protocol", "group": "Device", "area": "holding", "address": 58, "type": "uint16", "access": "R", "enum": "protocol"},
    {"name": "Serial network address", "group": "Device", "area": "holding", "address": 59, "type": "uint16", "access": "R", "description": "Range 1 to 254"},
    {"name": "Parameter protection", "group": "Settings", "area": "holding", "address": 60, "type": "uint16", "access": "RW", "enum": "protection", "description": "Protection against changing parameters"},
    {"name": "Password reminder", "group": "Device", "area": "holding", "address": 61, "type": "uint16", "access": "R"},
    {"name": "Serial number", "group": "Device", "area": "holding", "address": 62, "type": "uint32", "access": "R", "role": "serial", "description": "Registers 62 (MSB) and 63 (LSB), up to 0x98967F"},
    {"name": "Calibration day", "group": "Device", "area": "holding", "address": 64, "type": "uint16", "access": "R", "description": "Range 1 to 31"},
    {"name": "Calibration month", "group": "Device", "area": "holding", "address": 65, "type": "uint16", "access": "R", "description": "Range 1 to 12"},
    {"name": "Calibration year", "group": "Device", "area": "holding", "address": 66, "type": "uint16", "access": "R", "description": "Range 19 to 99"},
    {"name": "Equipment model", "group": "Device", "area": "holding", "address": 67, "type": "uint16", "access": "R", "enum": {"71": "IPTE"}, "role": "model"},
    {"name": "Equipment version", "group": "Device", "area": "holding", "address": 68, "type": "uint16", "access": "R", "description": "Range 0x00 to 0xFFFF; the encoding is not stated"}
  ]
}