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Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 57
[SENSe:]PERiod:APERture?
[SENSe:]PERiod:APERture? <
channel
> returns the currently set
APERture time.
Parameters
Comments • If the channel specified is on an SCP that doesn’t support this function,
an error will be generated. See your SCP’s User’s Manual for its
capabilities.
• Related Commands: SENS:PER:APER
• Returned Value: returns numeric aperture in seconds, The type is
float32.
• Send with VXIplug&play Function: hpe14XX_cmdReal64_Q(...)
SENSe:PERiod:LIMit:UPPer
[SENSe:]PERiod:LIMit:UPPer <
per_limit
>,<
ch_list
> allows you to
specify a period upper limit beyond which the E1538A will stop waiting for
a signal transition and will return a period value of zero. Conceptually, this
is an input signal period time-out.
Parameters
Comments • <ch_list> must be channels on an E1538A SCP.
Note Although SENS:PER:LIM:UPP can set a "timeout period" as long as 60
seconds, the longest supported periods are 1 second or 4 seconds depending
on the setting of SENSe:PERiod:RANGe.
• ...:LIMit:UPPer period is the maximum time the SCP will allow for any
cycle period.
At any time during the period measurement, if the cycle period exceeds
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
channel string 100 - 163 none
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
per_limit numeric (float32) .004 to 60 Sec
ch_list string 100 - 163 none