Difference between Timer and Counter – PLC Basics
In this article, we will learn the difference between timer and counter in PLC programming and understand the basic concepts.
In this article, we will learn the difference between timer and counter in PLC programming and understand the basic concepts.
The most commonly used timers in PLC programming are Pulse timers, on-delay timers, retentive on-delay timers, and off-delay timers.
Determine the necessary PLC switch actuation status (i.e. low versus high process stimulus) to turn the yellow lamp on.
Sketch a Ladder Diagram program for this PLC to energize the lamp if the following input conditions are met.
Suppose we have a PLC connected to three pushbutton switches. Sketch a Ladder Diagram program for program example.
Suppose we have an Allen-Bradley MicroLogix 1000 PLC and two pressure switches we need to connect to it.
Question & Answer – A PLC has been programming to control the starting and stopping of a three-phase electric motor.
A PLC has been programming to control the starting and stopping of a three-phase electric motor.
Identify the problem(s) in this PLC program, and modify it so that it will work as it should.
We have a problem in one of the PLC Permissive Inputs that there is a programming mistake, do the troubleshooting.