The ABB NTDI01 is a Digital I/O Termination Unit. It is a device used in industrial automation systems to connect digital input and output signals to the control system. The NTDI01 is designed to provide a termination point for digital signals and facilitate the communication between field devices and the control system.

The NTDI01 module typically features multiple digital input and output terminals that can be used to connect sensors, actuators, and other devices. The digital inputs are used to receive binary signals from field devices, while the digital outputs are used to send control signals to actuators or other devices.

The NTDI01 module is typically integrated into a larger control system architecture, such as a distributed control system (DCS) or a programmable logic controller (PLC) system. It is connected to the control system using appropriate communication protocols, such as Ethernet, Modbus, or Profibus.

ABB NTDI01 Digital I/O Termination Unit Datasheet