Keep comms flowing smoothly through your system with this digital I/O module from Siemens. It's designed for use with the wider SIMATIC S7-1500 system and has eight output channels, so you can keep a watch over numerous devices at once. An easy-to-read LED display makes staying on top of status simple, with eye-catching red and green lights showing channel condition. This module handles output currents up to 2A and 230V AC rated voltage, making it suitable for medium loads. Triac outputs mean work is done silently without any relay contact wear and tear.

• Slow-blow 6.3A melting fuse protects your wider system from damage during a critical event
• Safe to use in harsh conditions up to an operating temperature of +60°C when installed horizontally
• Works with shielded cables up to 1000m, so supports long-distance working

Both transistor and triac units are solid-state PLC outputs. The big difference between them is that transistors can handle DC loads while triacs such as this one are designed to handle AC current.

With a weight of just 290g, it won’t put much strain on your system.