Developing a control logic specification: Device control

Whitt, Michael D.
April 2008
InTech;Apr2008, Vol. 55 Issue 4, p66
The article discusses the development of a control logic specification. The control logic specification should meet the configuration requirements for all major device-related elements. Among the types of devices are analog input device, discrete input device and discrete output device. A sensor is a type of analog device that can detect process elements like pressure, flow and temperature. A switch is a discrete input device that features debounce timers. Examples of analog output devices are valves and variable frequency drives.


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