{
    "type": "mb-tcp-logger",
    "database": {
        "driver": "mysql",
        "host": "ip_or_domain",
        "port": 3306,
        "db-user": "database_user",
        "db-password": "database_password",
        "db-name": "database_table",
        "db-table": "table for insert values",
        "db-datetime-col": "dt"
    },
    "modbus": {
        "host": "ip_or_domain",
        "port": 1234,
        "scan-rate": 1000,
        "log-type": "on-change OR on-scan",
        "debug": false,
        "systemd-log": "on-change OR on-scan OR errors OR none"
    },
    "registers": [
        ["D1", "col_name1"],
        ["D2", "col_name2"],
        ["D3", "col_name3"]
    ]
}