The YOKOGAWA F3BU13-0N is a 13-slot base module used in programmable logic controllers (PLCs) made by Yokogawa Electric Corporation.

PLCs are industrial computers used to automate electromechanical processes in factories, buildings, and other applications.

• Digital I/O module: used to process digital signals from devices such as sensors and switches, and send digital signals to devices such as actuators and indicators.
• Analog I/O module: used to process analog signals from sensors and transmitters, and send analog signals to devices such as actuators and indicators.
• Communication module: used to connect PLC to other devices, such as computers, human-machine interfaces (HMI), and remote I/O devices.
• Specialized module: used to perform specific functions such as motion control, PID control, and image processing.