An I/O card (Input/Output Card) is a piece of hardware used in industrial automation systems to read signals from sensors and control output devices on a machine. It acts as a bridge between a PLC, CNC control unit, or industrial PC and field equipment. It ensures the safe, fast, and stable processing of digital and analog signals.
I/O cards serve as the physical interface between the automation system and the field. They read inputs such as limit switches, proximity sensors, encoders, buttons, and photoelectric sensors; and control outputs such as relays, valves, contactors, and motors. In servo motor systems, the I/O card manages auxiliary and peripheral control functions rather than motion commands.
It is used for signals that operate on an on/off basis. It is preferred in applications such as sensor, button, and relay control. It is the most commonly used type of I/O card in industrial automation.
It processes analog signals such as 0–10V or 4–20mA. It is used to read and control variables such as pressure, temperature, speed, and position.
It operates via communication protocols such as EtherCAT, Modbus, and CANopen. It is ideal for meeting I/O requirements at remote locations connected to a central control unit.
Designed for demanding operating conditions. It offers high resistance to vibration, electromagnetic interference, and temperature fluctuations.
I/O card prices vary depending on the number of channels, signal type, and communication protocol.
You must be logged in to post a review.
Linear Slide Linear Rail Carriage SHN 30 BL 
Linear Slide Linear Rail Carriage SHN 20 B 
Linear Slide Linear Rail Carriage SHN 25 AL 
EtherCAT Cable 
There are no reviews yet.