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Analog inputs
 

Analog inputs

An RTU can monitor analog inputs of different types including 0-1 mA, 4¨C20 mA current loop, 0¨C10 V., ¡À2.5 V, ¡À5.0 V etc. Many RTU inputs buffer larger quantities via transducers to convert and isolate real world quantities from sensitive RTU input levels. An RTU can also receive analog data via a communication system from a master or IED (Intelligent Electronic Device) sending data values to it.

The RTU or host system translates and scales this raw data into the appropriate units such as gallons of water left, temperature degrees, or Megawatts, before presenting the data to the user via the HMI.

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