Daily Archives: May 30, 2017

ControlLogix Counters (CTU and CTD) 1

Introduction to ControlLogix Counters (CTU and CTD) We use ControlLogix Counters (CTU and CTD) to count transitions of a rung.   More specifically, to count the false to true transition of a rung.   We can use this to count pallets on a conveyor using a photo eye or proximity switch. Read More »

PIzza Count

ControlLogix Timers 2

Introduction to ControlLogix Timers ControlLogix timers are used to delay events, or to time events.    There are three timers in the ControlLogix processor.  The TON (Timer On Delay) delays an event from turning on.   Next, the TOF (Timer Off Delay) Delays an event from shutting off.  Then we Read More »

TOF Timeout