PLC Switch Actuation Status

Allen-Bradley MicroLogix 1000 controller

Determine the necessary PLC switch actuation status (i.e. low versus high process stimulus) to turn the yellow lamp on.

Sketch a Ladder Diagram for PLC to Energize the Lamp

PLC Questions - 1

Sketch a Ladder Diagram program for this PLC to energize the lamp if the following input conditions are met.

PLC connected to Three Pushbutton Switches

PLC Circuit Answers

Suppose we have a PLC connected to three pushbutton switches. Sketch a Ladder Diagram program for program example.

Questions on Allen-Bradley MicroLogix 1000 PLC

Allen-Bradley MicroLogix 1000 PLC

Suppose we have an Allen-Bradley MicroLogix 1000 PLC and two pressure switches we need to connect to it.

PLC Programming Question & Answer

PLC Programming Questions

Question & Answer – A PLC has been programming to control the starting and stopping of a three-phase electric motor.

Example PLC Program

PLC Program

A PLC has been programming to control the starting and stopping of a three-phase electric motor.

Identify the Problem in the PLC Program

PLC Program three-phase electric motor

Identify the problem(s) in this PLC program, and modify it so that it will work as it should.

Troubleshooting PLC Permissive Inputs

PLC program to control pump

We have a problem in one of the PLC Permissive Inputs that there is a programming mistake, do the troubleshooting.

PLC Program to Control a Water Pump

PLC program to control a water pump

PLC program to control a water pump driven by an electric motor. It will be manually started and stopped by pushbutton switches, and shut down automatically by any one of several “permissive” switches.

MCQ on PLC (Programmable Logic Controller)

MCQ on PLC (Programmable Logic Controller)

Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to crack the competitive exams and to prepare for the top MNC companies written tests. Here’s a definitive list of MCQ on PLC (Programmable Logic Controller) that will guarantee a sail-through to the … Read more

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