What is Gas Chromatography

What is Gas Chromatography?

The gas chromatography process consists of five main components – mobile phase, sample port, stationary phase, detector, and computer.

Allen-Bradley MicroLogix 1000 controller

PLC Switch Actuation Status

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

PLC Program

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

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.