# :SYSTem:AUToscale

:SYSTem Setup Commands

- :SYSTem:AENable
- :SYSTem:AUToscale
- :SYSTem:AUToscale:VERTical
- :SYSTem:BORDer
- :SYSTem:DEFault
- :SYSTem:DSP
- :SYSTem:FACTory
- :SYSTem:FUNCtions:REMove
- :SYSTem:GTLocal
- :SYSTem:MENU:APPLications?
- :SYSTem:MENU:APPLications:LAUNch
- :SYSTem:TEST
- :SYSTem:TEST:CANCel

## Command Syntax

    :SYSTem:AUToscale

## Description

Performs an Auto Scale. There is no query form of this command.

If the Auto Scale is unsuccessful, one or more errors are placed in the last-in first-out error-message buffer. Use the `:SYSTem:ERRor:NEXT?` and `:SYSTem:ERRor:COUNt?` queries to determine if an error has occurred and the cause of any errors. The following errors can be reported:

- 143, "Instrument Error;Autoscale: No valid sources are turned on."
- 144, "Instrument Error;Autoscale: Could not detect data rate."
- 144, "Instrument Error;Autoscale: Unable to detect reference clock frequency."

Before using Auto Scale, turn on at least one channel and ensure a valid signal and trigger source is connected.

During an Auto Scale, the following tasks are performed:

- Scales the waveform vertically and horizontally for all the input channels that are turned on.
- Adjusts the trigger level.
- Sets trigger bandwidth.
- Sets the horizontal scale and position of the lowest numbered channel turned on.

To autoscale only the vertical axis, use the `:SYSTem:AUToscale:VERTical` child command.

When Infiniium is in Run mode, follow the `AUToscale` command with a `*OPC (Operation Complete)` query to halt program execution until the Auto Scale completes.