====== Up-Down Controller ======

{{:en:mervis-ide:35-help:updowncontroller.png}}

==== Full Name ====

Lib.Mervis.v1_0.UpDownController

==== Required Project References ====

  * Lib.Mervis

===== Description =====

[todo]

===== Usage in ST =====

<code>
program test
    var
        udctrl: lib.mervis.v1_0.UpDownController;
    end_var

    udctrl();
end_program
</code>

===== Inputs =====

|Name           |Data Type|Retain|Required                                                                 |Meaning|
|Input          |real     |No    |Yes     |Actual value                                                                  |      |
|Diff           |real     |No    |No      |Defines the deadband around the setpoint (this band is from -Diff/2 to Diff/2)|      |
|Reset          |bool     |No    |No      |Reset state                                                                    |      |
|Min            |real     |No    |No      |Minimum output value                                                          |      |
|Max            |real     |No    |No      |Maximum output value                                                          |      |
|Step           |real     |No    |No      |Value by which the output is increased or decreased when the integral criterion is met|      |
|Enable         |bool     |No    |Yes     |Function enable                                                                |      |
|SetPoint       |real     |Yes   |No      |Desired value                                                                  |      |
|LimitForAttach |real     |Yes   |No      |Limit value of the [[IntegralCriterion.htm|criterion]] for increasing the output|      |
|LimitForDetach |real     |Yes   |No      |Limit value of the [[IntegralCriterion.htm|criterion]] for decreasing the output|      |

===== Outputs =====

|Name |Data Type|Meaning|
|Out  |real     |Output |      |

===== Blocks =====

|Name                |Data Type                                                    |Meaning|
|IntegralCriterion   |[[IntegralCriterion.htm|Lib.Mervis.v1_0.IntegralCriterion]]  |Integral criterion for increasing or decreasing the output value|      |

===== Detailed Function Description =====

[todo]

===== Example Usage =====

[todo]