From the course: Learning PLC Ladder Logic: 2 Diving Deeper
Join today to access over 22,600 courses taught by industry experts or purchase this course individually.
Example: Comparison instruction - Ladder Logic Tutorial
From the course: Learning PLC Ladder Logic: 2 Diving Deeper
Example: Comparison instruction
- [Narrator] Here's a scenario for a section within a production line. This is part of a batch-counting operation to sort parts automatically for quality control. A sensor is used to detect the defective parts. The proximity sensor is used to count the parts as they pass by on the conveyor for the quality control line. Once eight parts have been detected, a red pilot light turns on. When less than eight parts detected, a green pilot light is on, indicating we're still within the accepted limits. A reset push button is used to reset it back to zero when the new batch of parts are coming. The two pilot lights are connected to output two. Reset push button and the sensor are connected to input one.
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.
Contents
-
-
-
-
-
Introduction to comparison instructions1m 24s
-
(Locked)
Common comparison instructions1m 37s
-
(Locked)
Example: Comparison instruction1m 1s
-
(Locked)
Solution: Comparison instruction2m 21s
-
(Locked)
Limit Comparison instruction1m 10s
-
(Locked)
Example and solution 1: LIM1m 51s
-
(Locked)
Example and solution 2: LIM2m 23s
-
-
-
-