PLC Switch Actuation Status

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

Example PLC Program

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

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.