> For the complete documentation index, see [llms.txt](https://docs.intrepidcs.com/vspy-3-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intrepidcs.com/vspy-3-documentation/vehicle-spy-main-menus/main-menu-scripting-and-automation/function-blocks/function-blocks-types/script-type-function-block-commands/script-type-function-block-command-wait-for.md).

# Script Type Function Block Command: Wait For

### Command Description

This command causes the function block script to wait for a period of time before continuing to the next step.

### Value Field Parameters

The **Value** field indicates how long the script should wait, in seconds. It can be specified in two ways:

* **Static Wait Time:** After the **Wait For** command is selected, a default value of 0.001 seconds (1 millisecond) will appear by default in the **Value** column field. Double-click the field and change the figure to however long you want the script to wait.
* **Dynamic Wait Time:** Double-click the **Value** cell, then press the **=** key twice to launch the [Expression Builder](/vspy-3-documentation/shared-features-in-vehicle-spy/shared-features-expression-builder.md). The script will wait for a number of seconds equal to the value returned by the defined expression.

### Example

Figure 1 shows an example of a function block script using a dynamic **Wait For**command (and a [Wait Until](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-scripting-and-automation/function-blocks/function-blocks-types/script-type-function-block-commands/script-type-function-block-command-wait-until.md) command as well). The script waits for receipt of an incoming message, then uses the value in a signal it contains to dictate how long to wait before sending an outgoing message. The script then repeats the process the next time the incoming message arrives.

![Figure 1: Example using the Wait For and Wait Until commands.](https://3170208387-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FL6lcovCpkhoS9uTOFtEp%2Fuploads%2Fl5R7Oa0MrbKfaM39lqj8%2Ffb_wait_for.gif?alt=media\&token=40cb33fb-d2c6-4379-b843-5b8b13cd3c7c)


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