Racal Instruments 3156B, Руководство пользователя

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3156B User Manual
Programming Reference 5-150 Racal Instrument © 2005
1 selects TTLTrg0 as the active trigger source
2 selects TTLTrg1 as the active trigger source
3 selects TTLTrg2 as the active trigger source
4 selects TTLTrg3 as the active trigger source
5 selects TTLTrg4 as the active trigger source
6 selects TTLTrg5 as the active trigger source
7 selects TTLTrg6 as the active trigger source
8 selects TTLTrg7 as the active trigger source
9 selects ECLTrg0 as the active trigger source
Default: 0
Return Values
Displays the return status of the function call. If the function was successful, it will return a status of
VI_SUCCESS, otherwise it will return an error code. Passing the error code into the function
"ri3156B_error_message()" will return a string describing the error.
Ri3156b_set(query)_trigger_delay
Description
The trigger delay parameter defines the time that will elapse from a valid trigger signal to the initiation of the first
output waveform. Trigger delay can be turned ON and OFF using the ri3156B_set_trigger_delay_state ()
function.
Note: System delay must always be considered when using an external trigger. System delay is measured from
a valid trigger input to the transition of the first waveform point. It has a fixed period that adds to the
programmed trigger delay value. System delay is 1 sample clock cycle +100ns.
Channel Dependency: Common
C Syntax
ViStatus ri3156b_set_trigger_delay (ViSession instrHandle, ViReal64 triggerDelay)
ViStatus ri3156b_query_trigger_delay (ViSession instrHandle, ViReal64 * triggerDelay)
Parameters
Name
Variable
Type
Description
instrHandle ViSession The Instrument Handle is used to identify the unique
session or communication channel between the driver
and the instrument. If more than one instrument of the
model type is used, this will be used to differentiate
between them. Note that the initialize function may be
used to associate multiple instrument handles with a
single instrument.