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B&K Precision 2552-2559 - Programming Manual User Manual

Page 115

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115

DESCRIPTION

The TRIG_DELAY command sets the time at

which the trigger is to occur with respect to the
first acquired data point.

This mode is called pre-trigger acquisition, as
data are acquired before the trigger occurs.
Negative trigger delays must be given in
seconds. This mode is called post-trigger
acquisition, as the data are acquired after the
trigger has occurred.

If a value outside the range, the trigger time will
be set to the nearest limit and the VAB bit (bit 2)
will be set in the STB register. The response to
the TRIG_DELAY? query indicates the trigger
time with respect to the first acquired data point.


COMMAND SYNTAX

TRig_DeLay

:= the range of value is related to the
timebase.


Note: The suffix S is optional and assumed.


QUERY SYNTAX

TRig_DeLay?

RESPONSE FORMAT

TRig_DeLay


EXAMPLE

The following command sets the trigger delay to

-2ms (posttrigger):


Command message:

TRDL -2MS


RELATED COMMANDS

TIME_DIV, TRIG_COUPLING, TRIG_LEVEL,

TRIG_MODE, TRIG_SELECT, TRIG_SLOPE

ACQUISITION

TRIG_DELAY, TRDL

Command /Query