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Module request

async_modbus::pdu

Module request

Expand description

Modbus request PDUs. Wrap them in a Frame to give them a unit ID and CRC.

use async_modbus::zerocopy::IntoBytes;

let pdu = WriteHolding::new().with_register(0x10BC).with_value(12345);
let frame = Frame::new(0x01, pdu);
assert_eq!(frame.as_bytes(), hex!("01 06 10 BC 30 39 98 FC"));

Structs§

ReadCoils: ReadCoils PDU (function code 0x01).
ReadDiscreteInputs: ReadDiscreteInputs PDU (function code 0x02).
ReadHoldings: ReadHoldings PDU (function code 0x03).
ReadInputs: ReadInputs PDU (function code 0x04).
WriteHolding: WriteHolding PDU (function code 0x06).
WriteHoldings: WriteHoldings PDU (function code 0x10).