# Input Block

## Byte 0 - 1

Name | Description
--- | ---
Command | This field indicates the command that is executed on the rising edge of the Execute Command bit. This signal must not be changed until the Command Completed bit has been set.
SystemValidated | This bit indicates that the vision system is in a valid state.

## Byte 2 - 3

Name | Description
--- | ---
Reserved | Unused.

## Byte 4 - 1919

Name | Description
--- | ---
User Data | Data buffer which can be read into the spreadsheet using the ReadUserDataBuffer or ReadLatchedUserDataBuffer function Functions are tools that are available in Spreadsheet for processing and analyzing acquisitions or other results. You can add functions to your Spreadsheet job to create tool chains and produce results for specific applications..