Prof. Vinod B. Kumbhar is an Assistant Professor at Adarsh Institute of Technology & Research Centre (AITRC), Shivaji University, India specializing in developments in Industrial Automation Technology. Prior to joining AITRC, he worked as a Senior Customer Support Engineer at Messung Systems Pvt.Ltd, a leading automation company in India.

He has executed a good number of turn-key automation systems, from designing, programming, and developing, to commissioning in industrial automation. He has worked with various brands of PLCs such as Siemens, Allen-Bradley, Mitsubishi, and ABB. Currently he is involved in research work on communications between PLC and Visual Basic for cost-effective SCADA solutions.

He is currently pursuing an M.E. in Electronics & Telecommunication from Shivaji University. He has published several papers on PLC-based systems. He is the owner of the blog http://plc-scada-dcs.blogspot.com, where he writes tutorials on the latest developments in automation engineering.

Scott Whitlock is a licensed professional engineer and automation programmer. He has been writing programs in RSLogix 500 and 5000 since graduating from the University of Waterloo in 2000. He is the author of a popular (and free) online tutorial for RSLogix 5000 beginners. He also does a lot of HMI and data-collection work using C# and SQL Server, respectively. Recently he has been building more systems using TwinCAT 3, a PC-based control system. Outside of work, he has written and released two open source libraries (called FluentDwelling and SoapBox Core) and one open source ladder logic editor (called SoapBox Snap), all written in C#. Scott still lives in the small town where he grew up, with his loving wife Tammy, three adorable young children, and their family dog, Roxy. In those precious minutes after the kids go to bed, Scott sometimes finds the time to write down his thoughts about PLC programming, PC programming, and the differences between the two on his blog, Contact and Coil, at http://www.contactandcoil.com/.