Ldx-3232 device-dependent command reference, Delay – Lightwave Communications LDX-3232 User Manual

Page 56

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C O M M A N D R E F E R E N C E
LDX-3232 Device-Dependent Command Reference

40

LDX-3232

C H A P T E R

4

LDX-3232 Device-Dependent Command Reference

The following pages contain a reference for the device-dependent commands of
the LDX-3232 High Compliance Current Source. This reference contains useful
information for both local and remote operation of the LDX-3232.

References to the front panel labels are capitalized in the following reference
pages (as is done throughout this manual). Therefore, a reference to the LOCAL
switch is meant to signify the actual switch labeled LOCAL on the front panel of
the LDX-3232.

In some reference, parentheses are used to signify the labeled are for a particular
switch or LED indicator on the front panel. For example, (PARAMETER) SET
refers to the switch labeled “SET” in the PARAMETER area of the front panel.

The DELAY command causes the execution of commands to be delayed by a user-
defined time. This command is similar to the *WAI common command, except that
execution resumes after the specified number of miliseconds, instead of waiting for the
Operation-Complete flag to be set.

Syntax Diagram

Parameters

An <nrf value> that represents the delay time in milliseconds.

Notes

The Operation-Complete flag is held false until the delay period elapses, but the *OPC?
query will not execute until the delay period has elapsed.

This command is useful for creating delays that don't require a lot of program code and
don't tie up the GPIB during execution.

The delay time is approximate, with an error of about ±10%.

Examples

"DELAY 500" -action: Further commands and queries are not executed until about 0.5
seconds have elapsed from the time this command is executed.

“LAS:LDI 22;Delay 2000;LAS:LDI?” -actions: The current is set to 22.0 mA, then the
LDX-3232 High Compliance Current Source waits for about 2.0 seconds before returning
the measured current.

Note: Care should be taken to set the GPIB time-out appropriately for use with the Delay
command.

DELAY

F

RONT

P

ANEL

R

EMOTE

:

DELAY

<white

space>

<nrf

value>

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