Glossary Terms
Terms that are used on the Manufacturing Automation website
x-axis
The axis of motion that is always horizontal and parallel to the work holding surface.
x-y matrix
A group of rows and columns. The x-axis is the horizontal row, and the y-axis is the vertical column. An x-y matrix is the reference framework for two-dimensional structures, such as mathematical tables, display screens, digitizer tablets, dot matrix printers and 2-D graphics images.
x-y-z matrix
A three-dimensional structure. The x and y axes represent the first two dimensions; the z axis, the third dimension. In a graphic image, the x and y denote width and height; the z denotes depth.
XML
Extensible markup
XMTR
Transmitter. A device that sends data.
XON/XOFF
An asynchronous communication protocol for the receiving station to control the flow of data from the transmitting station. When the receiving station cannot continue to receive any more data, as when its buffer is full, it transmits an XOFF (DC3) control character that tells the sender to stop. When the receiving station is again able to process more data, it transmits an XON (DC1) control character that tells the sender to resume transmission. This protocol is also referred to as software handshaking.
