What is the main benefit of employing a decentralized I/O system?

Employing a decentralized I/O system primarily offers improved wiring efficiency. In a decentralized architecture, I/O modules are distributed closer to the process or equipment they control, rather than being aggregated in a central location. This proximity reduces the amount of wiring needed, as fewer long-distance cables are required to connect devices to a controller.

Additionally, decentralized systems can minimize installation time and labor since each module can be mounted directly where it is needed, streamlining the entire setup. This arrangement not only enhances efficiency but can also lead to reduced installation costs and improved system responsiveness, as data collection and processing can occur closer to the actual devices being monitored or controlled. Overall, improving wiring efficiency is a significant advantage of decentralized I/O systems, making them an attractive option for many automation applications.