A modern, high-performance .NET library for smart meter communication supporting both ANSI C12.18/C12.19 PSEM and DLMS/COSEM (IEC 62056) protocols.
- Dual protocol: ANSI PSEM and DLMS/COSEM in a single library
- Fully async with CancellationToken support
- Zero-allocation hot paths with Span<T>, ArrayPool<T>, System.IO.Pipelines
- Pluggable ITransport interface (serial, TCP, loopback, custom)
- Table deserialization: fluent builder, attribute mapping, or JSON schema
- Built-in PSEM meter emulator with configurable tables and security
- Result<T> discriminated union — no exceptions for control flow
- IAsyncEnumerable for streaming large table reads
- Source-generated ILogger<T> integration
- Multi-target: net9.0 and net10.0
| Package | Description |
|---|---|
| SharpMeter.Core | Protocol types, CRC-16, Result<T>, enums, table definitions and deserializer |
| SharpMeter.Transport | ITransport interface, serial, TCP, and loopback transports |
| SharpMeter.Client | PSEM client — session, table, and procedure services |
| SharpMeter.Dlms | DLMS/COSEM — HDLC framing, OBIS codes, A-XDR codec, GET/SET/ACTION |
| SharpMeter.Emulator | Full PSEM meter emulator with in-memory table store |
using SharpMeter.Client;
using SharpMeter.Core.Tables;
using SharpMeter.Transport;
await using var transport = new SerialTransport(
new TransportOptions { PortName = "COM3" },
NullLogger<SerialTransport>.Instance);
await using var client = new PsemClient(transport, NullLogger<PsemClient>.Instance);
await client.ConnectAsync();
// Read and deserialize a table
var table = await client.ReadTableAsync(1);
var registry = new TableRegistry();
var parsed = registry.Deserialize(1, table.Value.Data);
Console.WriteLine(parsed.Value.GetValue("MANUFACTURER"));
await client.DisconnectAsync();Full docs at jacobwi.github.io/SharpMeter
MIT — See GitHub for source and documentation.