Crate m_bus_application_layer 

Parser for the M-Bus application layer defined by EN 13757-3.

Use parse_application_layer when the input starts with a control information (CI) field. Use parse_data_records when the transport header has already been removed and the input starts with a DIF/VIF data record.

Parse data records directly

use m_bus_application_layer::{
    data_information::DataType, parse_data_records, DataRecordError,
};

fn main() -> Result<(), DataRecordError> {
    // 24-bit integer, volume in m³ with a 10^-3 scale.
    let data = [0x03, 0x13, 0x15, 0x31, 0x00];
    let mut records = parse_data_records(&data);
    let record = records.next().expect("one data record")?;

    assert_eq!(record.value(), Some(&DataType::Number(12_565.0)));
    assert_eq!(record.raw_bytes(), &data);
    Ok(())
}

Re-exports

pub use variable_user_data::DataRecordError;

pub use self::data_record::DataRecord;

Modules

data_information

data_record

decryption

extended_link_layer

value_information

variable_user_data

Structs

Counter

DataRecords

LongTplHeader

ShortTplHeader

StatusField

Enums

ApplicationLayerError

ApplicationResetSubcode

ControlInformation

Direction

UserDataBlock

Functions

parse_application_layer

Parses an application-layer user data block beginning with a CI field.

parse_data_records

Parses DIF/VIF data records after any CI and transport headers were removed.

parse_data_records_with_header

Parses DIF/VIF data records using context from a long transport header.