Programmable Logic John San Miguel is pictured working with programmable logic controllers as part of the Energy Systems Technology Evaluation Program, or ESTEP, at Space and Naval Warfare Systems Command Systems Center Pacific, Nov., 20, 2013. Navy photo SHARE IMAGE: Download Image: Full Size (1.94 MB) Tags: ONR, S&T, office of naval research, Science and Technology, U.S. Navy, USN Photo By: Navy photo VIRIN: 130904-N-PO203-011.JPG Photo Gallery