A graph that is formed by two intersecting lines: a horizontal, or "X," axis and a vertical, or "Y," axis
A control chart used to plot the average of the values taken from a sample group
Examine if Closed. The PLC instruction that makes its portion of the ladder rung true if there is a voltage on that address's input terminal. Also known as Examine On.
Examine if Open. The PLC instruction that makes its portion of the ladder rung true if there is not a voltage on that address's input terminal. Also known as Examine Off.
A shorthand designation for the EXCLUSIVE NOR gate.
A shorthand designation for the EXCLUSIVE OR gate.
