Intelligent I/O enables localised decision making
When machines are controlled by centralised PLCs, making any big changes – say to the layout of a conveyor – can become time consuming, reducing overall system flexibility. Even decentralised PLCs with high I/O counts don’t always make it easy. But suppose you could have small I/O blocks with embedded PLC functionality. Say hello to a new breed of field logic controllers, with simple programming undertaken at the fieldbus level.