Instrument state storage – Agilent Technologies L4400 User Manual

Page 108

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96

L4400 User’s Guide

3

Operating and Programming

MYSEQ_1,PATH_DUT1,SW_PATH2

If no sequence names have been stored, a null string (“ ”) string

is returned.

Instrument State Storage

Usage:

All L4400 Series Instruments

The L4400 series instruments have five storage locations in non- volatile
memory numbered 1 through 5 to store instrument states. A sixth
location stores the instrument’s power down state which is restored
when the instrument is turned back on. You can assign a user- defined
name to each of locations 1 through 5.

You can store the instrument state in any of the four locations, but

you can only recall a state from a location that contains a previously

stored state.

When shipped from the factory, storage locations 1 through 5 are

empty. In addition, the automatic recall mode is disabled
(

MEMory:STATe:RECall:AUTO OFF

command) and a Factory Reset

(

*RST

command) is issued when power is turned on.

You can name a storage location, but the location is recalled using the

location number. The name can contain up to 12 characters. The first
character must be a letter (A- Z), but the remaining 11 characters can
be letters, numbers (0- 9), or the underscore character (“_”). Blank
spaces are not allowed.

A Factory Reset (

*RST

command) does not affect the configurations

stored in memory. Once a state is stored, it remains until it is
overwritten or specifically deleted.

The following commands are used to store and recall instrument states.

*SAV {1|2|3|4|5}

*RCL {1|2|3|4|5}

To configure the instrument to automatically recall location 2 when
power is restored, send the following commands.

*SAV 2

MEM:STATE:RECALL:SELECT 2

MEM:STATE:RECALL:AUTO ON

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