For a person first starting out, instructor based PLC Training is the best approach, PLC-Training.org refers to this as "The Foundational Training" in their 10 PLC Training learning phases. The reason live hands-on instructor based PLC training is recommended, is that it is actual training, not just scholastic online education. Actual PLC training first is recomended, as it is the foundation, in which you can build on with online scholastic courses (or even better downloadable certificate course you don't need internet to use), educational books, videos etc. The reason you want actual training and not just one of those online scholastic course, is that mistakes in the real world ...
can result in damage to million dollar equipment or even worse, injuring people!... read more
http://plc-training.org just added 10 more pages of PLC usage and PLC programming training best practices and advice.