s7

A simple library that can be used to communicate with Siemens S7 family PLC devices

This crate provides communication tools for Siemens s7 family devices So far only PG.db_read and PG.db_write have been tested on actual hardware The crate is unstable as of now and provides no guarantees # examples ``` extern crate s7; use s7::{client, tcp, transport}; use std::time::Duration; use std::net::{Ipv4Addr, IpAddr};

fn main() { let addr = Ipv4Addr::new(127, 0, 0, 1); let mut opts = tcp::Options::new(IpAddr::from(addr), 5, 5);

opts.read_timeout = Duration::from_secs(2);
opts.write_timeout = Duration::from_secs(2);


let t = tcp::Transport::connect(opts).unwrap();
let mut cl = client::PG::new(t);

let buffer = &mut vec![0u8; 1];
let db = 888;
let offset = 8.4;
let size = 1;

cl.db_read(db, offset as i32, size, buffer)?;
let mut  lights = Bool::new(db, offset, buffer.to_vec())?;
 lights.set_value(!lights.value()); // toggle the light switch
cl.db_write(lights.data_block(), lights.offset(), Bool::size(), lights.to_bytes().as_mut())?;

} ```

s7

License