Sketch a Ladder Diagram for PLC to Energize the Lamp
Sketch a Ladder Diagram program for this PLC to energize the lamp if the following input conditions are met....
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PLC connected to Three Pushbutton Switches
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
Suppose we have an Allen-Bradley MicroLogix 1000 PLC and two pressure switches we need to connect to it....
PLC Programming Question & Answer
Question & Answer - A PLC has been programming to control the starting and stopping of a three-phase electric motor....
Example 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
Identify the problem(s) in this PLC program, and modify it so that it will work as it should....
Troubleshooting PLC Permissive Inputs
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 driven by an electric motor. It will be manually started and stopped by pushbutton switches, and shut down automatically by any one of...
PLC Permissive for Motor Control
A engineer needs to write a PLC program to control a water pump driven by an electric motor. This water pump will be manually started and stopped by pushbutton switches,...
Troubleshoot Allen Bradley PLC Logic
A engineer needs to write a program for an Allen-Bradley CompactLogix PLC to control a pressure relieving solenoid valve in a gas processing system. A pair of high-pressure control switches...