TDS5000B Online Programmer Guide
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HORizontal:FASTframe:XZEro:ALL:REF<x>?
Description
This query--only command returns the frame number and xzero for each
frame between requested frames, inclusive, within the specified wave-
form. Argument order is unimportant. The reference waveform is speci-
fied by x. The value of x can range from 1 through 4 for four-channel
instruments or 1 through 2 for two-channel instruments.
Xzero is the subsample time between the trigger sample (designated by
WFMOutpre:PT_Off?) and the occurrence of the actual trigger for the
waveform specified.
Note: This query uses an asynchronous method to obtain and write its
output data, which may result in an arbitrarily large volume. Until all
output data has been generated and read by your program, or a device
clear message is sent, the instrument will not respond to its user con-
trols.
It is recommended that you follow this query with a query of the event
status register (*ESR?) to determine if the original query completed
successfully.
If the timeout is set to less than the time required to generate and trans-
fer all of the output data, the *ESR? query will indicate that the error
bit is set. A subsequent query of the event queue (EVMsg? or AL-
LEV?) will indicate that the query was interrupted by *ESR?. In such
cases, increase the timeout value and send the query again.
Group
Horizontal
Related Commands
WFMOutputpre:XZEro? WFMOutpre:PT_Off?,
HORizontal:FASTframe:XZEro:ALL:CH<x>?,
HORizontal:FASTframe:XZEro:FRAme:CH<x>?,
HORizontal:FASTframe:XZEro:FRAme:REF<x>?,
HORizontal:FASTframe:XZEro:REF?,
HORizontal:FASTframe:XZEro:SELECTED:CH<x>?,
HORizontal:FASTframe:XZEro:SELECTED:REF<x>?
Syntax
HORizontal:FASTframe:XZEro:ALL:REF<x>? <NR1>,
<NR1>
Arguments
H <NR1>
This specifies the selected “from” frame number within the specified
waveform.
H <NR1>
This specifies the selected “to” frame number within the specified
waveform.
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