ur20-modbus is a Rust library for communicating with the Modbus TCP fieldbus coupler Weidmüller UR20-FBC-MOD-TCP.

Example:

use std::error::Error;
use ur20_modbus::Coupler;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let addr = "192.168.0.222:502".parse()?;
    let mut coupler = Coupler::connect(addr).await?;
    let id = coupler.id().await?;
    println!("Connected to {}", id);
    coupler.set_output(
        &ur20::Address {
            module: 3,
            channel: 2,
        },
        ur20::ChannelValue::Bit(true),
    )?;
    coupler.tick().await?;
    Ok(())
}

UR20 Modbus

ur20-modbus is a Rust library for communicating with the Modbus TCP fieldbus coupler Weidmüller UR20-FBC-MOD-TCP.

License

Copyright (c) 2018-2025, slowtec GmbH

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.