Create Gain (PI » Parallel) (G Dataflow)

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

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.

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)

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.

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.

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

PI gains

Proportional gain and integral gain parameters of the controller.

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

proportional

Proportional gain of the controller.

integral

Integral gain of the controller.

Algorithm Definition

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

${C}_{p}\left(s\right)={K}_{p}^{\prime }+\frac{{K}_{i}^{\prime }}{s}$

where ${K}_{p}^{\prime }$ is the proportional gain and ${K}_{i}^{\prime }$ is the integral gain.

Where This Node Can Run:

Desktop OS: Windows

FPGA: This product does not support FPGA devices

Web Server: Not supported in VIs that run in a web application