---
title: "system.dnp3.freezeAnalogsAtTime"
description: "Issues a freeze command on the given analog outputs at the given time for the specified duration."
---

# system.dnp3.freezeAnalogsAtTime

> Issues a freeze command on the given analog outputs at the given time for the specified duration.

:::note
The following function uses [system.dnp3](appendix\scripting-functions\system-dnp3\system-dnp3.md) and the [Legacy DNP3 driver](ignition-modules\opc-ua\opc-ua-drivers\dnp3\legacy-dnp3-driver\legacy-dnp3-driver.md). See [system.dnp](appendix\scripting-functions\system-dnp\system-dnp.md) for [DNP3](ignition-modules\opc-ua\opc-ua-drivers\dnp3\dnp3.md) functions using the [DNP3 driver](ignition-modules\opc-ua\opc-ua-drivers\dnp3\dnp3-driver\dnp3-driver.md).
:::

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

## Description

## Client Permission Restrictions

[Permission Type](ignition-modules\vision\vision-project-properties\vision-project-properties.md#vision-permissions-properties): DNP3 Management

Client access to this scripting function is blocked to users that do not meet the role/zone requirements for the above permission type. This function is unaffected when run in the Gateway scope.

## Syntax

`system.dnp3.freezeAnalogsAtTime(deviceName, absoluteTime, intervalTime, indexes)`

### Parameters
Type | Parameter | Description 
------- | ------- | -----
String| `deviceName` | The name of the DNP3 device driver.
Integer| `absoluteTime` | The absolute time at which to freeze, in millis.
Integer| `intervalTime` | The interval at which to periodically freeze, in millis.
 List| `indexes` | A list of specific indexes on which to issue the freeze command. An empty list will freeze all points. 

### Returns
Nothing

### Scope
Gateway, Vision Client, Perspective Session

## Code Examples

```python title="Example #1"
# This example shows a request to freeze analog inputs at indexes 2 and 4,
# 5 minutes from the current time, with no interval.
from time import *
  
fiveMikes = (60 * 1000 * 5) + int(time() * 1000) #ms
system.dnp3.freezeAnalogsAtTime("Dnp3", fiveMikes, 0, [2, 4])
```