[[http://plc.sourceforge.net/|PLC connect This project hopes to be able to provide interchangeable PLC interface drivers to projects]] [[https://www.youtube.com/watch?v=G4mDyFsahFU|Arduino LabVIEW Tutorial- Controlling VFD using LabVIEW via Arduino]] [[https://forums.ni.com/t5/LabVIEW/Can-I-integrate-a-PLC-VFD-to-drive-a-large-motor-with-Labview/td-p/3368282?profile.language=en| Can I integrate a PLC/VFD to drive a large motor with Labview through Arduino?]] [[https://sourceforge.net/directory/os:linux/?q=siemens+plc+linux|PLC siemens linux]]