Want to open lines of communication between your PLC and devices such as transmitters and switches? Choose this I/O module from Siemens. It has four digital outputs for connection to multiple devices. The red and green diagnostic LEDs shed light on the unit's operating status, so troubleshooting's done and dusted in a flash. Thanks to built-in protection against reverse polarity, short circuits and overload, it has your system covered against damage from electrical hazards. You'll find this essential device used in manufacturing and industrial automation applications.

• Wide operating temperature range between 0°C and +60°C for use in demanding environments
• Compact dimensions of 73 (H) x 15 (W) x 58mm (D) to save space in your setup
• Supply voltage range of 20.4 to 28.8V DC for compatibility with low-power systems

I/O modules like this one take signals from sensors and actuators and convert them into a language the PLC can understand. The PLC then directs the output devices to perform specific actions in response to the signals.