Last Modified: January 12, 2018

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

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.

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)

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.

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 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

Proportional gain and integral gain parameters of the controller.

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

Proportional gain of the controller.

Integral gain of the controller.

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

${C}_{i}\left(s\right)={K}_{c}(1+\frac{1}{{T}_{i}s})$

where *K*_{c} is the proportional gain and *T*_{i} is the integral time constant.

**Where This Node Can Run: **

Desktop OS: Windows

FPGA: Not supported

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