// Meter configuration
"meters": [
    {
     "enabled": true,
     "allowskip": true,
     "protocol": "exec",
     "command": "/home/pi/exec-modbus --tty /dev/ttyUSB0 --baudrate 9600 --parity N --stopbits 1 --addr 0x1 0x2080",
                "format": "$t: $i = $v",
     "interval": 30,
     "channels": [
        {
            "api": "volkszaehler",
            "uuid": "72c65340-4a72-11ea-acb1-d536b07bbb9d",
            "identifier": "0x2080",
            "middleware": "http://localhost/middleware.php"
        }
     ]
    },
]