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Appendix A API Commands
ChartScan User’s Manual A-45
P
- Program Trigger Times
TYPE
Channel
EXECUTION
Deferred
SYNTAX
Pstart,
stop
Set the trigger start and/or stop times for an acquisition configured for start
and/or stop on absolute time, where
start
and
stop
are in the standard
time/date stamp format:
HH:MM:SS:T,mm/dd/yy
where
H
is hours,
MM
is minutes,
SS
is seconds,
T
is tenths of a second,
mm
is month,
dd
is day, and
yy
is year.
P?
Query current start and stop times in the form:
Pstart,stop
DESCRIPTION
The Program Trigger Times (
P
) command may be used to set the trigger start and/or stop times for an
acquisition that is configured for start and/or stop on Absolute Time as configured by the Set Trigger
Configuration (
T
) command.
The Program Trigger Times command is to be used in concert with the Set Trigger Configuration command when
it is desired to begin and/or stop an acquisition on certain times and/or dates. The values of the start and stop
times are only used when the start and/or stop events have been configured for Absolute Time.
If only the start time is needed, the
stop
argument should be set to
00:00:00.0,00/00/00
. Likewise, if
only the stop time is needed, the
start
argument should be set to
00:00:00.0,00/00/00
.
In addition to the ability to start/stop on a particular time/date the unit has the ability to start/stop at a particular
time, independent of the date. If the date for the start/stop time is of no concern, then the date portion of the
time/date field should be set to
00/00/00
. In this way, the unit can start or stop an acquisition at a particular
time regardless of the date. This feature is particularly useful when using the auto-rearm feature of the unit since
it will allow the collection of data at a particular time each day without user intervention.
EXAMPLE
PRINT#1,“OUTPUT07;S12:54:00.0,
01/01/93X”
‘ Set the internal clock of the unit
PRINT#1,“OUTPUT07;P01:00:00, 0,
01/01/93, 02:00:00.0, 01/01/93X”
‘ Set start (1:00 am) and stop (2:00 am)
acquisition times
PRINT#1,“OUTPUT07;T11,11,0,0X”
‘ Configure for start/stop on Absolute Time