Daily Archives: June 1, 2017

ControlLogix Compare Instructions

Introduction to ControlLogix Compare Instructions ControlLogix Compare Instructions are generally used with analog values to determine if a tag is above, below, or within a preset range.   Examples of where a compare instruction might be used is if a tank level exceeds a certain preset.  Also, if a sump Read More »

Less than Greater than

ControlLogix Analog 3

Introduction to ControlLogix Analog Discrete (digital) inputs and outputs are signals that are on or off.   There is no middle state to discrete.  These were good for switches, indicator lights, or motor starters, but if we want to measure a variable signal, we need an analog module.     Read More »

IE8 Properties