Table Of Contents

Rate Limiter (G Dataflow)

Version:
    Last Modified: March 31, 2017

    Specifies a maximum rate of change of a signal.

    connector_pane_image
    datatype_icon

    reset

    A Boolean or a Boolean array that determines whether to use initial output to compute the rate limiter.

    True Uses initial output to compute the rate limiter.
    False Uses the previous output to compute the rate limiter.

    This node automatically uses initial output to compute the rate limiter on the first call.

    Default: False

    datatype_icon

    input

    Input signal.

    This input accepts a double-precision, floating-point number or an array of double-precision, floating-point numbers.

    datatype_icon

    positive slew rate

    Allowable positive change in the output signal between successive calls to this node.

    This input accepts a double-precision, floating-point number or an array of double-precision, floating-point numbers.

    Default: 0

    datatype_icon

    negative slew rate

    Allowable negative change in the output signal between successive calls to this node.

    This input accepts a double-precision, floating-point number or an array of double-precision, floating-point numbers.

    Default: 0

    datatype_icon

    initial output

    Output value on the first call to this node or when reset is True.

    This input accepts a double-precision, floating-point number or an array of double-precision, floating-point numbers.

    Default: 0

    datatype_icon

    dt

    Loop-cycle time or interval, in seconds, at which this node is called.

    dt must be greater than zero.

    datatype_icon

    output

    Output signal.

    This output can return a double-precision, floating-point number or an array of double-precision, floating-point numbers.

    Algorithm Definition for the Rate Limiter Function

    The following equations define the rate limiter function.

    D = u ( t ) y ( t 1 ) d t
    y ( t ) = { positive slew rate × d t + y ( t 1 )    if D > positive slew rate negative slew rate × d t + y ( t 1 )    if D < negarive slew rate u ( t )    otherwise

    where

    • u is the input signal
    • y is the output signal
    • t is the current simulation time
    • D is the rate of change of the signal

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


    Recently Viewed Topics