10 releases (6 breaking)
0.7.1 | Nov 6, 2024 |
---|---|
0.7.0 | Oct 26, 2024 |
0.6.1 | Oct 18, 2024 |
0.5.0 | Sep 11, 2024 |
0.1.0 | Nov 4, 2023 |
#226 in Network programming
467 downloads per month
1MB
21K
SLoC
SunSpec Rust Implementation
This Rust crate contains code for accessing SunSpec compliant devices in a safe and convenient way.
Highlights
- Pure Rust library
- No unsafe code
- Panic free
- All communication is abstracted via traits making it runtime agnostic
- Supports Modbus TCP and RTU (via tokio-modbus).
- Implements "Device Information Model Discovery" as defined in the SunSpec specification.
- Fully typed models generated from the JSON files contained in the SunSpec models repository
- Fully typed enums
- Fully typed bitfields
- Fully documented. Even the generated models.
- Reading of complete models in a single request.
⚠️ Nested and repeating groups are not supported, yet. |
---|
Features
Feature | Description | Extra dependencies | Default |
---|---|---|---|
tokio |
Enable tokio_modbus support |
tokio-modbus , tokio/time |
yes |
serde |
Enable serde support |
serde , bitflags/serde |
yes |
Examples
The examples
directory in the code repository contains the unabridged code.
Example code for accessing data from a three phase inverter using the model 103
use std::{error::Error, net::SocketAddr, time::Duration};
use clap::Parser;
use itertools::Itertools;
use sunspec::{
client::{AsyncClient, Config},
models::{model1::Model1, model103::Model103},
};
use tokio::time::sleep;
use tokio_modbus::{client::tcp::connect_slave, Slave};
#[derive(Parser)]
struct Args {
addr: SocketAddr,
device_id: u8,
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
let args = Args::parse();
let mut client = AsyncClient::new(
connect_slave(args.addr, Slave(args.device_id)).await?,
Config::default(),
).await?;
let m1: Model1 = client.read_model().await?;
println!("Manufacturer: {}", m1.mn);
println!("Model: {}", m1.md);
println!("Version: {}", m1.vr.as_deref().unwrap_or("(unspecified)"));
println!("Serial Number: {}", m1.sn);
println!(
"Supported models: {}",
client
.models
.supported_model_ids()
.iter()
.map(|id| id.to_string())
.join(", ")
);
loop {
let m103: Model103 = client.read_model().await?;
let w = m103.w as f32 * 10f32.powf(m103.w_sf.into());
let wh = m103.wh as f32 * 10f32.powf(m103.wh_sf.into());
println!("{:12.3} kWh {:9.3} kW", wh / 1000.0, w / 1000.0,);
sleep(Duration::from_secs(1)).await;
}
}
FAQ
How does this crate differ from crates like tokio-sunspec
, sunspec-models
, sunspec_rs
?
-
This crate generates all code using Rust code via the official SunSpec models repository with a code generator that was written in Rust, too.
-
All generated models are plain Rust structs. A single Modbus call can return the complete data for a model rather than having to fetch points individually.
-
All public types are documented. Even the generated models.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Dependencies
~2.8–9MB
~78K SLoC