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SCPI Commands for the Counter
3–76
VX4101A MultiPaq Instrument User Manual
CAUTION. Do not continuously issue FETCh?COUNt or STAT:OPER:COND?
queries to check if the measurement is complete. Provide a minimum 100 ms
delay between each query to permit the multitasking system to process the
measurement efficiently or use *SRQ to avoid processing delays caused by
polling.
FETCh:TOTalize?
The totalize measurement returns two integers of up to 15 digits. The first integer
is the total counts from input channel one and the second integer is the total
counts from input channel two.
FETCh[:VOLTage][:...]? [<count>[,<start>[,<step>]]]
Sets up to return the results of the previous voltage measurement. If a single
voltage measurement has been made, any of the other voltage function results
may be fetched. If an array of voltage measurements have been made, only the
results of the requested voltage measurement function may be fetched.
The default value of <count> is the number of measurements requested for the
array. The default value of <start> is 1. The default value of <step> is 1. The
number of values returned is <count>. The first of the values returned is value
<start>. Then every <step> values after start are returned.
If a single measurement is made, the format of the returned voltage is:
n.nnnn<lf>
If an array measurement is made, the format of the returned values is:
#abbrn.nnnnesxx,rn.nnnnesxx, ... ,rn.nnnnesxx<lf>
where
a = number of b digits
b = number of characters in the returned data not including #abb
r = – or space
n = value
s = + or –
xx = exponent
for example:
meas:arr:DC? 10
#3119 2.5712e+01, 1.5392e+02,–1.0252e+02, 2.5642e+02,–9.7442e+01,
3.0777e+01,–2.2567e+02, 2.5647e+02,–9.7447e+01, 3.0777e+01