: Entry-level, compact controllers designed for standalone machines or small-scale automation.
: Mid-range controllers with a rackless design, where modules connect side-by-side on a DIN rail. They balance performance and cost for medium-sized systems like packaging lines or multi-axis motion control. This is a PLC book for Allen Bradley PLCs
: The flagship, high-performance series using a modular, chassis-based architecture. It supports thousands of I/O points, multi-controller configurations in a single rack, and critical features like redundancy for high-availability systems. 2. Core Hardware Components high-performance series using a modular
Regardless of the family, an Allen-Bradley PLC system typically consists of these key elements: What Is the Difference Between Controllogix & Compactlogix? multi-controller configurations in a single rack