IL is gone, but Ladder remains—why does PLC Ladder logic survive even in the era of Structured Text?

"Ladder is outdated. The future of PLCs is Structured Text (ST)."In the world of FA, you sometimes see this kind of ...
Electrical Construction & Maintenance

The Basics of Ladder Logic

Ladder logic uses switch or relay contacts to implement Boolean expressions. In years past, ladder logic was made possible with discrete relays and was sometimes termed “relay logic.” Today most ...