fennec_modbus/
tcp.rs

1//! Sans-IO Modbus-over-TCP client.
2
3pub mod header;
4pub mod tokio;
5pub mod transaction;
6mod unit_id;
7
8pub use self::unit_id::UnitId;
9
10/// Modbus Application Protocol (Data Unit) header aka «MBAP header».
11#[must_use]
12#[derive(Clone)]
13pub struct Header {
14    /// Transaction ID used to match responses with requests.
15    pub transaction_id: u16,
16
17    /// Protocol ID. Always `0` for Modbus.
18    pub protocol_id: u16,
19
20    /// Number of following codec, *including the Unit Identifier and data fields*.
21    pub length: u16,
22
23    /// Unit identifier aka «slave ID».
24    ///
25    /// Identification of a remote slave connected on a serial line or on other buses.
26    pub unit_id: UnitId,
27}
28
29impl Header {
30    pub const PROTOCOL_ID: u16 = 0;
31}
fennec_modbus/tcp.rs

fennec_modbus/
tcp.rs
