README.md

README.md

@@ -135,6 +135,10 @@ Currently supported:
   example](https://github.com/roboplc/roboplc/blob/main/examples/eapi.rs)),
   requires `eapi` crate feature.
 
+* [ADS](https://crates.io/crates/roboplc-io-ads) connector for [Beckhoff
+  TwinCAT](https://infosys.beckhoff.com/english.php?content=../content/1033/tcinfosys3/11291871243.html&id=),
+  requires a license for commercial use.
+
 ## Locking safety
 
 Note: the asynchronous components use `parking_lot_rt` locking only.