# Logging - Part 1: General Setup

### Open Vehicle Spy: 

The first step, as with any Vehicle Spy project, is to open Vehicle Spy and Log in.

### 2. Trigger Message: 

This will be the message to look for.  When this message is received, a short post capture will be collected.  After the post capture, the partition will be changed.  This trigger does not have to be a message but could be a signal value, Misc input, or any other type of trigger condition that can be setup for standalone logging.  In the example file a Receive HS CAN message will be used with the following Parameters:

![](https://2280262322-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC3KyOmcYmM6ZVd3OQDa1%2Fuploads%2FVJop6lEWOGlpI0VWzD8x%2FappnotCMPartTxMessage.gif?alt=media\&token=7dabc3e1-858f-4ac4-9f5e-b86f3338c655)

### 3. Partition Index: 

To keep track of which partition is being logged to, an [application signal](https://docs.intrepidcs.com/vspy-3-documentation/3.9.12/vehicle-spy-main-menus/main-menu-scripting-and-automation/application-signals) is needed.  In the example file this is called "PartitionIndex".  This will have to be an analog signal type.

### 4. Capture Function Block: 

Next a [capture function block](https://docs.intrepidcs.com/vspy-3-documentation/3.9.12/vehicle-spy-main-menus/main-menu-scripting-and-automation/function-blocks/function-blocks-types/capture-type-function-block) needs to be setup.  The settings to use are listed below:\
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Filter:  Default settings or create a filter for the messages of interest.\
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Start:  Start Immediately and make sure "Automatically restart when complete" is checked.\
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Stop and Trigger:  Configure this to collect in a one-shot buffer with a buffer size of 50000.\
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Storage:  Default settings.