The Omron SI-EP3 is a Profinet communication card for industrial automation systems. It is a compact, high-performance card that offers high-speed and reliable connectivity between PLCs, CNCs, and other industrial machines. The card allows communication with PLCs of multiple vendors such as Siemens S7 and Rockwell Automation’s CompactLogix on one Profinet network, allowing for a seamless data exchange between devices. The SI-EP3 allows the user to access data securely and quickly with support for built-in encryption for guarding data integrity. The card has a long lifespan of over 1,000,000 hours and a MTBF of 1,000,000 hours. The card also provides support for oPCA, PMP, PROFINET GR, and PROFINET DC protocols.