Read - Agilent Technologies 4288A Programming Manual

Command Reference

:READ?

:READ?
Syntax
:READ?
Description
Waits for the end of measurement and reads out the measurement result.
Executing this command brings the 4288A into the trigger wait state. When the trigger
system is in the idle state, this command invokes the trigger system (the :INIT command)
once and then brings the instrument into the trigger wait state. After that, when the
instrument is triggered and the measurement finishes, this command reads the
measurement result and exits.
This command can be executed when the trigger mode has been set to either internal (Int)
or external (Ext) (set to INT or EXT with the :TRIG:SOUR command).
If this command is executed with the trigger mode set to manual (Man) or GPIB (Bus)
(specified as MAN or BUS with the :TRIG:SOUR command), an error occurs because
there is no way to trigger and the command is ignored.
NOTE
If the trigger mode is External (Ext), no subsequent command can be accepted until an
external trigger is supplied. To release this state without entering an external trigger, send
Device Clear (the "CLEAR" instruction in HTBasic) to the GPIB port to abort the query
operation.
The transfer format of data read out with this command conforms to the setup made with
the :FORM command. (Query only)
Query response {numeric 1},{numeric 2},{numeric 3},{numeric 4}<newline><^END>
The query response is the same as that of the :FETC? command. For details, refer to the
description of :FETC?.
Related commands :FETC? on page 181
*TRG on page 128
:INIT on page 183
:TRIG:SOUR on page 196
:FORM on page 182
Equivalent key No equivalent key is available on the front panel.
sequence
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