{
  "$schema": "https://modbus-monitor.github.io/modbus-device-maps/schemas/modbus-map.schema.json",
  "schema_version": "1.1.0",
  "id": "northern-design/pm390",
  "manufacturer": "Northern Design",
  "manufacturer_slug": "northern-design",
  "model": "PM390",
  "slug": "pm390",
  "title": "Northern Design PM390 Modbus Register Map",
  "description": "Official Modbus Monitor XPF preview for the Northern Design PM390 power meter, with 12 representative power, current, frequency signals.",
  "device_type": "Power Meter",
  "protocol": "Modbus RTU / Modbus TCP",
  "categories": [
    "Power",
    "Current",
    "Frequency",
    "Power Factor"
  ],
  "address_display_convention": "Display address copied from the official XPF map preview. Modbus reference-number and zero-based offset conventions vary by device; verify the manufacturer manual before polling or writing.",
  "registers": [
    {
      "name": "Phase 1 amps Amps",
      "display_address": "405388",
      "data_type": "FLOAT32",
      "unit": "A",
      "category": "Current"
    },
    {
      "name": "kW 3-Ph kW",
      "display_address": "405376",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power"
    },
    {
      "name": "Frequency",
      "display_address": "405384",
      "data_type": "FLOAT32",
      "unit": "Hz",
      "category": "Frequency"
    },
    {
      "name": "PF 3-Ph",
      "display_address": "405382",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power Factor"
    },
    {
      "name": "Phase 1 volts Volts",
      "display_address": "405386",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "General"
    },
    {
      "name": "Export wh Wh",
      "display_address": "405642",
      "data_type": "UINT32",
      "unit": "kWh",
      "category": "Communication"
    },
    {
      "name": "kVA 3-Ph kVA",
      "display_address": "405378",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power"
    },
    {
      "name": "Kvar 3-Ph kvar",
      "display_address": "405380",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power"
    },
    {
      "name": "Phase 1 kW kW",
      "display_address": "405390",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power"
    },
    {
      "name": "Phase 2 amps Amps",
      "display_address": "405394",
      "data_type": "FLOAT32",
      "unit": "A",
      "category": "Current"
    },
    {
      "name": "Phase 2 kW kW",
      "display_address": "405396",
      "data_type": "FLOAT32",
      "unit": "-",
      "category": "Power"
    },
    {
      "name": "Phase 3 amps Amps",
      "display_address": "405400",
      "data_type": "FLOAT32",
      "unit": "A",
      "category": "Current"
    }
  ],
  "register_count": 12,
  "guide_status": "upcoming",
  "documentation_url": null,
  "product": {
    "name": "Modbus Monitor XPF",
    "full_map_url": "https://www.modbusmonitor.com/download?utm_source=github&utm_medium=referral&utm_campaign=device_maps&utm_content=northern-design/pm390",
    "tester_url": "https://www.modbusmonitor.com/modbus-tester?utm_source=github&utm_medium=referral&utm_campaign=device_maps&utm_content=northern-design/pm390",
    "request_url": "https://github.com/Modbus-Monitor/modbus-device-maps/issues/new/choose"
  },
  "license_notice": "See DATA_LICENSE.md and DISCLAIMER.md in the repository root."
}