> 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/3.9.15/application-notes/application-note-coremini-partition-logging/logging-part-2-function-block-setup.md).

# Logging - Part 2: Function Block Setup

### 1. Control Function Block:

The control [function block](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-scripting-and-automation/function-blocks/function-blocks-types/script-type-function-block.md) is a script that will tell the capture function block to change partitions when the trigger condition is met. There are a number of ways to do this script. The basic functionality would be to:\\

1. Set your index
2. Wait for condition to change partition
3. Change partition
4. Make sure you are accessing a valid partition

The script in the example is shown below.

![](https://2396693198-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRJv2XDCMeZSU0VbeZlG%2Fuploads%2Fgit-blob-e20cba3dcf0eb49314dba2d5dd0039b9d6ca97b8%2FappnotCMPartControl.gif?alt=media)


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