ADS proxy

build-main

This is a Beckhoff ADS proxy that could resolve multiple tcp connections with same ip address issues.

Usage

Download binary from github release page or cargo install ads-proxy, then run ads-proxy.

```shell ADS proxy utility

Usage: ads-proxy [OPTIONS]

Arguments: PLC address, e.g. 172.18.0.10:48898

Options: -d, --debug Debug mode -b, --buffer-size Buffer size (maximum size of a AMS packet) [default: 65536] -q, --queue-size Queue size (cached packets per connection) [default: 128] -r, --route-ams-net-id Optional ams net id route, e.g. 10.10.10.10.1.1 -u, --username Optional PLC username (to add route) -p, --password Optional PLC password (to add route) --route-host Optional Proxy hostname (hostname or ip address, detected from PLC connection) -l, --listen-addr Proxy listen address [default: 127.0.0.1:48898] -h, --help Print help -V, --version Print version

```

In pyads, connect to ads-proxy. For example, client 1 and 2 on a host:

Might need to add route entry in shell command with -r or in PLC configuration, see default user and password

shell ads-proxy -r 10.10.10.10.1.1 192.168.0.10:48898

```python import pyads

x=1 or 2, process instance should have a unique ams net id

pyads.setlocaladdress("10.10.10.10.1.x")

plc1 = pyads.Connection(amsnetid="192.168.0.10.1.1", amsnetport=851, ip_address="127.0.0.1") with plc1: ...

app can create multiple ADS connections

the packets will be sent in ONE tcp connection in a process instance

plc2 = pyads.Connection(amsnetid="192.168.0.10.1.1", amsnetport=851, ip_address="127.0.0.1") with plc2: ... ```

How it works

text client 1 --| 10.10.10.10.1.1 | | multi-connections one connection client 2 ---------------------> ads-proxy --------------> PLC 10.10.10.10.1.2 | a.b.c.d route 10.10.10.10.1.1 | a.b.c.d client n --| 10.10.10.10.x.y

License

MIT