---
title: "system.tag.scan"
description: "Forces execution of a scan class. On a leased scan class, if both the fast and slow rate are set to 0, this will not execute."
---

# system.tag.scan

> Forces execution of a scan class. On a leased scan class, if both the fast and slow rate are set to 0, this will not execute.

:::note Deprecated
This function was deprecated in 8.1.0.
:::

This function is used in **Python Scripting**.

## Description
## Client Permission Restrictions
This scripting function has no [Client Permission](versioned_docs/version-8.1\ignition-modules\vision\vision-project-properties\vision-project-properties.md#vision-permissions-properties) restrictions.

## Syntax
`system.tag.scan(provider, scname)`

- Parameters
    - String `provider` - The name of the scan class provider. If blank, it will use the default. Required if used in the gateway scope.
    - String `scname` - The name of the scan class to execute.
- Returns
    - Nothing
- Scope
    - All

## Code Examples
```python title="Example #1"
# This code would immediately execute a scan on the scan class named My Slow Scan Class, even though it is only supposed to execute every minute.
  
system.tag.scan("MyProvider", "My Slow Scan Class")
```