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SCPI Commands for the Counter
VX4101A MultiPaq Instrument User Manual
3–39
Parameter Value
<slope> POSitive | NEGative
<source> BUS, TTLTRG0, TTLTRG1, TTLTRG2, TTLTRG3, TTLTRG4,
TTLTRG5, TTLTRG6, TTLTRG7, COMMAND0, COMMAND1,
COMMAND2, COMMAND3, COMMAND4, SUREPATH, DMM,
COUNTER, CTR_EXTARM, CTR_CHAN2, DAC, DIGI, DIGO,
INTERNAL LEVEL
N/A
The following summarizes the ARM subsystem functionality:
ARM ([:SEQuence1] |:STARt) [:LAYer]:DELay <time delay>
Specifies a time delay to occur after receipt of an arm signal prior to actually
arming the Counter. If the arming source selected is fixed, this command will
have no effect on the Counter arming. This command always zeros the event
count delay, so specifying a delay of zero places the arm subsystem in pass-
through mode. In this mode, the instrument arms immediately upon receipt of a
trigger.
ARM ([:SEQuence1] |:STARt) [:LAYer]:ECOunt <time delay>
Specifies the number of arm signals to count prior to arming the Counter. Upon
receipt of arming signal N (where N is the number specified in the command),
the Counter will be armed to take measurements. If you are using a fixed arm
source, this command will have no effect on the Counter arming. This command
always zeros the delay by time parameter, so specifying an event count of zero
places the arm subsystem in pass-through mode. In this mode, the instrument
arms immediately upon receipt of a trigger.
ARM ([:SEQuence1] |:STARt) [:LAYer]:IMMediate
Causes a one-time entry by the Counter into the armed state without receiving
the specified start arm signal.
ARM ([:SEQuence1] |:STARt) [:LAYer]:LEVel <threshold>
Specifies the comparator level of Counter External Arm Signal. When the
External Arm Signal crosses this level with the appropriate slope, the instrument
activates the CTR_EXTARM trigger source.
ARM ([:SEQuence1] |:STARt) [:LAYer]:MODE <mode>
When the Counter has been configured for an array measurement, this command
specifies whether the Counter will perform one or all operations when an ARM
command is received. If the mode is ALL, then all operations will be completed
Related Commands
Description