Yokogawa Electric Corporation ANR11D-411/NDEL Rack

The Yokogawa ANR11D-411/NDEL Rack is a 19-inch rack-mount node interface unit that houses and integrates multiple I/O modules for distributed control systems. In typical installations within Yokogawa CENTUM DCS cabinets and field control stations, it provides remote signal collection and scalable I/O expansion, supporting reliable module integration and straightforward maintenance. The rack supports up to 12 module slots (configuration dependent), accepts 100–120 VAC or 220–240 VAC at 50/60 Hz, and draws approximately 120 W, delivering signal aggregation and power distribution for both analog and digital I/O. Communication occurs via the ESB bus or optical ESB network to control units, and it is compatible with Yokogawa CENTUM, FIO, and N-IO systems, making it suitable for oil and gas, chemical, and power generation environments that require distributed remote I/O. With a 19-inch rack mounting format and a weight of roughly 6–10 kg, the ANR11D-411/NDEL serves as a centralized host for I/O modules and a scalable backbone for large plant architectures.