Connections for Control: Communications Interfaces for Position and Motion Sensors C 14 Cov ommunications interfaces provide the all-important link between sensors (the " nerves " of a control system) and the controllers (the " brain " ). An impressive variety of communications technologies has been introduced to provide this link, usually with features and capabilities tailored to a certain type of control system. Let's look at some widely used communications technologies for motion control. coders de - liver a continuous stream of signal pulses - Special Solutions for Special Cases For some sensors that provide feedback for motion control, the measurement technology will dictate the communications interface. Incremental en - www.techbriefs.com ToC one for each time the encoder's shaft rotates a certain amount. They excel at speed control, as the controller can accurately determine the rate of rotation from the interval between pulses. Many incremental encoders transmit two output signals, termed A and Tech Briefs, August 2021http://www.techbriefs.com http://www.abpi.net/ntbpdfclicks/l.php?202108MDNAV