Raw Streams

For full control over the Modbus TCP pipeline, use ModbusCodec directly.

ReadFlow

A pre-wired Flow<ReadRequest, RegisterResponse> connected to a device:

var readFlow = ModbusCodec.ReadFlow(system, "192.168.1.100", 502, unitId: 1);

Source.From(new[]
    {
        new ReadRequest(1000, 4),
        new ReadRequest(1050, 2),
    })
    .Via(readFlow)
    .RunForEach(r => Console.WriteLine($"[{r.Address}]: {r.Registers.Length} registers"), mat);

Custom Topology

Use ModbusCodec.Framing() to get the raw BidiFlow and bring your own TCP transport:

// BidiFlow<ModbusRequest, ByteString, ByteString, ModbusResponse>
var framing = ModbusCodec.Framing();

This is useful when you need custom TCP configuration, TLS, or want to multiplex multiple logical connections over a single transport.