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title: Counter node
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{/*##head##*/}

# Counter

This node holds a <span className="ndl-data">number</span> that can be increased or decreased with <span className="ndl-signal">signals</span>.

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![](/nodes/math/counter/counter_node.png)

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The Counter node can be limited to a `min` and a `max` value, and the limit can be turned on and off.

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![](/nodes/math/counter/counter.gif)

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## Inputs

| Signal                                             | Description                                                                                     |
| -------------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| <span className="ndl-signal">Increase Count</span> | {/*##input:increase##*/}Triggering this action will increases the count by one.{/*##input##*/}          |
| <span className="ndl-signal">Decrease Count</span> | {/*##input:decrease##*/}Triggering this action will decrease the count by one.{/*##input##*/}           |
| <span className="ndl-signal">Reset To Start</span> | {/*##input:reset##*/}Triggering this action will reset the counter to its _Start Value_.{/*##input##*/} |
| <span className="ndl-signal">Start Value</span>    | {/*##input:startValue##*/}The start value of the count. Defaults to zero.{/*##input##*/}                |

| Data                                             | Description                                                                                                                                                                                         |
| ------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <span className="ndl-data">Min Value</span>      | {/*##input:limitsMin##*/}The minimum value of the counter. The counter will never decrease below this value. Note that **Limits Enabled** need to be set to `true` for this to be in effect.{/*##input##*/} |
| <span className="ndl-data">Max Value</span>      | {/*##input:limitsMax##*/}The maximum value of the counter. The counter will never increase above this value. Note that **Limits Enabled** need to be set to `true` for this to be in effect.{/*##input##*/} |
| <span className="ndl-data">Limits Enabled</span> | {/*##input:limitsEnabled##*/}This input controls if the limits (**Min Value** and **Max Value**) are active or disabled.{/*##input##*/}                                                                     |

## Outputs

| Data                                            | Description                                                                  |
| ----------------------------------------------- | ---------------------------------------------------------------------------- |
| <span className="ndl-data">Current Count</span> | {/*##output:currentCount##*/}This output contains the current count.{/*##output##*/} |

| Signal                                            | Description                                                                                                |
| ------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| <span className="ndl-signal">Count Changed</span> | {/*##output:countChanged##*/}This signal will be triggered whenever the **Current Count** changes.{/*##output##*/} |