So im new tp the site but not to the job. Here shortly i will have a hellva oportunity to get a sweet gig but i dont have the working knowledge for it. Its a port job here in seattle working with plc vfd motors and so on. what should i look at to get the knowledge like where can i go to read about this stuff... worked with vfds a bit but not enough to know what imntalking about. thank you.