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Create Gain (PI » Academic) (G Dataflow)

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    Last Modified: March 31, 2017

    Returns PI gains of a PI controller in the Academic form.

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    integral unit

    Unit associated with the integral gain.

    This input accepts a ring or an array of rings.

    Name Value Description
    Hz 0 Specifies that the integral gain is expressed in Hz.
    s 1 Specifies that the integral gain is expressed in seconds.
    min 2 Specifies that the integral gain is expressed in minutes.

    Default: The default value of this input changes depending on the data type you wire. If you wire a ring to this input, the default is s. If you wire an array of rings to this input, the default is Hz.

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    proportional unit

    Unit associated with the proportional gain.

    The relationship between the available units is K = 100/PB.

    This input accepts a ring or an array of rings.

    Name Value Description
    Gain (K) 0 Specifies that the proportional gain is expressed in terms of proportional gain (K).
    Band (PB) 1 Specifies that the proportional gain is expressed in terms of proportional band (PB).

    Default: Gain (K)

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    proportional

    Value of the proportional component of the controller.

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

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    integral

    Value of the integral component of the controller.

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

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    action

    Action of the controller.

    This input accepts a ring or an array of rings.

    Name Value Description
    Reverse 0 The controller is reverse-acting.
    Direct 1 The controller is direct-acting.

    Default: Reverse

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    PI gains

    Proportional gain and integral gain parameters of the controller.

    This output can return a cluster or an array of clusters.

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    proportional

    Proportional gain of the controller.

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    integral

    Integral gain of the controller.

    Algorithm Definition

    The following transfer function represents a PI controller in the Academic form:

    C i ( s ) = K c ( 1 + 1 T i s )

    where Kc is the proportional gain and Ti is the integral time constant.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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