Maximum Allowed Voltage in the roboRIO's DIO

Updated Jan 21, 2019

Reported In

Hardware

  • roboRIO-FRC
  • roboRIO

Issue Details

The roboRIO's Specification Sheet does not give a maximum input voltage for its digital inputs. Can the roboRIO's DIO handle a 12VDC input?

Solution

The maximum allowable input voltage is 5.25 VDC. Anything higher could potentially cause damage to the roboRIO.

Additional Information

In page 4 of the Specification Sheet it's mentioned:

 

Digital I/O

 Input logic levels

  Input low voltage = VIL 0.0 V min; 0.8 V max

  Input high voltage = VIH 2.0 V min; 5.25 V max

 

While it is not specified as the maximum allowed voltage, the Logic Level shows the hardware's capability in these terminals, thus establishing the Maximum Allowed Voltage, too.

Related Links

Product Page: NI roboRIO

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