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Precision DAC and watchdog boost analog output safety

Posted: 16 Apr 2012 ?? ?Print Version ?Bookmark and Share

Keywords:DAC? microprocessor? programmable logic controllers?

System safety can be enhanced in industrial controllers, programmable logic controllers (PLC), and data-acquisition systems using a digital-to-analog converter and a microprocessor supervisor. The analog output is set to zero-scale (or pin-programmable midscale) when a microprocessor failure, optocoupler failure, or undervoltage condition occurs. A simple application is shown on how to implement this function.

View the PDF document for more information.

Originally published by Maxim Integrated Products at as "Precision DAC and Watchdog Improve Analog Output Safety".

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