NX-ID Digital Input Units A range of NX-ID series Digital input units from Omron. These NX-ID digital I/O units are for high-speed synchronous control & general purpose and selectable synchronous I/O refreshing or free run refreshing is possible by connecting with the EtherCAT coupler. The digtal I/O units are available with 4 or 8 digital inputs. All digital I/O units are reliable and excellent quality Features & Benefits High-speed I/O refreshing is possible by connecting with the EtherCAT Coupler. I/O refreshing can be synchronized with the control cycle of the Controller. (Synchronous refreshing) ON/OFF response time of the high-speed model is 100 μs max, which enables high-speed, high-precision control. The removable screwless terminal block improves maintenance. Screw-less clamp terminal block significantly reduces wiring work. 12-mm-wide unit can save space. The lineup including 4-point, 8-point, and 16-point types enables ideal system configuration for your system.