EtherCAT (Ethernet Control Automation Technology) is an open high performance Ethernet-based fieldbus system that provides high efficiency and tight synchronization for machine and automation control. Delta provides the R1-EC series EtherCAT slave modules for remote I/O connectivity, enabling OEMs to build machines in a modular fashion without sacrificing performance. The R1-EC Series is designed for faster, real-time precision machine applications with various remote extension modules including: Digital Input (DI) down to 0.1msec, Digital Output (DO) at 0.5A per point, Analog Input (AI) and Output (AO) with 16 bit resolution, and single-axis pulse output to support stepper drive control. This I/O system is DIN rail mountable, slice oriented, and include removable “push-and-plug” terminals for simplified wiring and quick installation. The devices have been designed and tested to EMC noise immunity based on ESD, EFT, RS standards (IEC 61131-2, IEC 61000-4-2) and high vibration resistance conforming to EN 60068-2-6 and EN 60068-2-27/29 to meet industrial usage. The R1-EC series slave module is Conformance Tested to meet ETG standards (EtherCAT Technology Group).