Easing control system design with interface relays

摘要

One of the most challenging aspects of designing and commissioning industrial control systems is at the interface to the electrical system itself. The input and output interfaces are largely denned by the PLCs or industrial computers used for programming systems. As the price of silicon has fallen, industrial controllers have become commodity items, and offer more than enough computing and logic processing for most applications. The drawback is that they generally integrate fixed and inflexible interface devices.