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Connections

MFIO

Multi-Function I/O

Technical Specifications

Multi-Function I/O
  • Type:

    Multi-Function I/O

  • Quantity:

    1

  • Modes:

    Current Loop Input: 0 to 25mA
    Frequency/Pulse Counter Input: up to 2kHz
    General Purpose Digital Input: max. 36Vdc
    Low Power Digital Output

  • Resolution:

    0.4 uA (Current Loop Mode)

  • Connector:

    1 set of 4-position screw terminals (3.5 mm)

Technical Specifications
0-20mA / GPIO / Counter / Digital Out

Multi-Function I/O

The MFIO rounds out the already impressive set of I/Os available on the RIO xR3.

This input can be switched into any of 4 different modes:

  • Current Loop Input: to measure 0-25mA currents.
  • General Purpose Input: in case all other hybrid inputs are busy.
  • Pulse/Frequency Counter: to keep track of rapid fire changes.
  • Low Power Digital Output: fast acting, digital out.

MFIO

Current Loop Input

Measures current loop inputs with a maximum range of 0-25mA.

Usually 0-4mA and 20-25mA ranges are reserved to signal error/fault conditions, while current loop inputs use 4-20mA to signal proper operating conditions.

  • I/Os

    1 MFIO – Current Loop Mode

  • Connectors

    1 x 4 position

  • Pluggable
    Yes
  • Type
    Screw Terminal
  • Pitch
    3.5mm

The MFIO can be programmed to detect the frequency of an external signal (up to 2kHz), or count pulses.

  • I/Os

    1 MFIO – Pulse/Freqency Mode

  • Connectors

    1 x 4 position

  • Pluggable
    Yes
  • Type
    Screw Terminal
  • Pitch
    3.5mm

MFIO

Pulse/Frequency Counter

MFIO

General Purpose Input

Switch to general purpose input if one more input is required. Input signal passes through a Schmitt trigger to reduce noise. Limit to signal levels below 36Vdc.

  • I/Os

    1 MFIO – General Purpose Input

  • Connectors

    1 x 4 position

  • Pluggable
    Yes
  • Type
    Screw Terminal
  • Pitch
    3.5mm

The last mode the MFIO can be switched into is LDPO (Low Power Digital Output).

It is a digital output signal, reacting faster than the latching relays. However, it’s use usually requires an external pull-up to guarantee proper operation.

Not intended to switch external loads. Use as a signal output only.

  • I/Os

    1 MFIO – Low Power Digital Output

  • Connectors

    1 x 4 position

  • Pluggable
    Yes
  • Type
    Screw Terminal
  • Pitch
    3.5mm

MFIO

Low Power Digital Output