====Timer Node====

This node acts as a //timer//. It's often used to give your measurements time to stabilise after a change in how your machinery is operating.

This node is used in all [[analytic_modules|modules]] and is one of the [[folder_timing|timing nodes]].

{{timing_timer.png}}

The way this node operates has a lot to do with its options - a more detailed explaination of how you can use Timer nodes is shown further below.

===Inputs===

**Run (Input #1)** is a //boolean// value that is used to start the timer. It's behaviour is changed by the //activation// option. \\

**Reset (Input #2)** is a //boolean// that is used to reset/stop the timer.

===Outputs===

**Finished (Output #1)** is **true** if the time chosen in the **seconds** option has elapsed.\\

**Counting (Output #2)** is **true** if the timer has //started//, but not yet //elapsed//.

===Options===

**Seconds** determines how many seconds the timer should run for before the ''Finished" output turns on.

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**Activation** determines how the clock is started.

If Activation is //Instant//, the 'run' input needs to remain **true** for the entire amount of time. If the option is //Latched//, the input only needs to be on for a moment - the timer will continue to count even if the run input them drops back to **false**.

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**Reset** determines how the timer is reset back to its starting state, ready to count down again. 

If Reset is //manual//, the **Finished** output will remain on until the **Reset** input is triggered. If the mode is //auto//, the **Finished** output will only be true for one second, after which the timer will automatically reset.

Note that timers are **cumulative until reset**, which means that if you have a 10 second timer and do the following...

  * Turn 'run' on for 4 seconds
  * Turn 'run' off for 1 minute
  * Turn 'run' on back on

Then the timer will trigger //six seconds after you turn it back on//, unless you've told it to reset. This is because it already counted the 4 seconds from the earlier, cancelled attempt.

An easy way to ensure you could 10 seconds every time is to connect the **reset** input to the [[logic_not|Not]] of the **run** input.

===Examples===

{{timer_badfortime.png}}

This logic will trigger something if the //Paint Line Actual Speed// has been different from the //Paint Line Target Speed// for more than 10 seconds.

{{pivot_ignore_timing.png}}

This logic will ignore events that happen in the ten seconds after //the thickness of the product changes//.

{{timer_badbatch.png}}

This logic will flag any batches you've produced where the //actual line speed// and the //target line speed// were different for more than 10 seconds in total.