{
    "rtype": 0, // 0 = modbus, 1 = http/json
    "mtype": 1, // 0 = other, 1 = meter, 2 = inverter, 4 = battery
    
    "name": "EARU EA777",   // as displayed in the config dialog
    "manufacturer": "EARU",
    "dev_type": "EA777",   // will be prefixed by "meter_"


   // "delay_accumulated": true,

    // modbus parameters
    "rtu": {
        "silence_period": 50,    // msec
        "silence_same_slave": false,
        "retries": 4,
        "rcv_timeout": 120       // msec
    },
    "modbus_read": 3,            // function code to read registers
    "modbus_read_max_registers": 140, 
    "modbus_write": 16,          // function code to write register(s)
    "modbus_write_max_registers": 64,
    
    // values used to build the model string
    "type_designation": {
        "address": 0,
        "type": "string",
        "fixed": "EA777"
    },
    "version": {
        "address": 0,
        "type": "string",
        "fixed": 1.0
    },
    "firmware_version": {
        "address": 0,
        "type": "string",
        "fixed": 1.0
    },
    "serial": {
        "address": 0,
        "type": "string",
        "fixed": 0
    },

    // instantaneous values
    "voltage_l1": {
        "address": 0x00,
        "type": "int16",
        "resolution": 0.1   // result in V, the read value will be multiplied with 'resolution' to yield the final result
    },
    "voltage_l2": {
        "address": 0x01,
        "type": "int16",
        "resolution": 0.1   // result in V
    },
    "voltage_l3": {
        "address": 0x02,
        "type": "int16",
        "resolution": 0.1   // result in V
    },
    "current_l1": {
        "address": 0x03,
        "type": "int16",
        "resolution": 10.0   // result mA
    },
    "current_l2": {
        "address": 0x04,
        "type": "int16",
        "resolution": 10.0   // result in mA
    },
    "current_l3": {
        "address": 0x05,
        "type": "int16",
        "resolution": 10.0   // result in mA
    },
    // Power 
    "power_w": {
        "address": 0x07,
        "type": "int16",
        "resolution": 1.0  // result in W
    },
    // Power per phase
    "power_w_l1": {
        "address": 0x08,
        "type": "int16",
        "resolution": 1.0
    },
    "power_w_l2": {
        "address": 0x09,
        "type": "int16",
        "resolution": 1.0
    },
    "power_w_l3": {
        "address": 0x0A,
        "type": "int16",
        "resolution": 1.0
    },
	// Reactive power per phase
    "power_var_l1": {
        "address": 0x0C,
        "type": "int16",
        "resolution": 1.0
    },
    "power_var_l2": {
        "address": 0x0D,
        "type": "int16",
        "resolution": 1.0
    },
    "power_var_l3": {
        "address": 0x0E,
        "type": "int16",
        "resolution": 1.0
    },
    // accumulated values
    "import_wh": {
        "address": 0x27,
        "type": "int32",
        "order": "hl",
        "resolution": 10   // 10 Wh, result in Wh
    },
    "export_wh": {
        "address": 0x31,
        "type": "int32",
        "order": "hl",
        "resolution": 10   // 10 Wh, result in Wh
    }
}