In a programmable controller setup, how is a motor connected to the controller?

In a programmable controller setup, a motor is typically connected to the controller through input/output (I/O) devices. These I/O devices act as the interface between the controller and the motor, allowing the controller to send commands to the motor and receive feedback. This connection enables precise control over the motor's operation, such as starting, stopping, and adjusting its speed based on the programmed logic within the controller.

Using I/O devices allows for the central control of various components within an automated system, facilitating integration with sensors, switches, and other hardware that may also need to interact with the motor's operations. This setup is essential for ensuring that the programmable controller can effectively manage and monitor motor performance in real time.

In contrast, RS232 cables and modems are typically used for data communication rather than direct operation of motors. Line voltage pertains to the power supply, which is crucial for the functioning of motors but does not represent the link for control signals between the controller and motor.