User manual

IEEE-488 Reference
2001-900-01 Rev. K / August 2010 4-113
:FRESh
[:SENSe[1]]:DATA:FRESh Request new reading.
Description This query command is used to return a new (fresh) reading. This command will not return the same read-
ing more than once. If sent again, this command will wait until a new reading is triggered and available.
Programming example 10 OUTPUT 716; “:data:fresh?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Requests fresh reading.
Line 20 Addresses 2001 to talk.
Line 30 Displays the reading.
4.19.5 :APERture <n>
[:SENSe[1]]:CURRent:AC:APERture <n> Set aperture for ACI
[:SENSe[1]]:CURRent{:DC]:APERture <n> Set aperture for DCI
[:SENSe[1]]:VOLTage:AC:APERture <n> Set aperture for ACV
[:SENSe[1]]:VOLTage[:DC]:APERture <n> Set aperture for DCV
[:SENSe[1]]:RESistance:APERture <n> Set aperture for 2
[:SENSe[1]]:FRESistance:APERture <n> Set aperture for 4
[:SENSe[1]]:TEMPerature:APERture <n> Set aperture for TEMP
Parameters <n> = 166.6666666667e-6 to 200e-3Integration period in seconds
= DEFault Power line cycle integration:
16.67msec for 60Hz power line
20msec for 50Hz and 400Hz power line
= MINimum 166.6666666667e-6sec
= MAXimum 200e-3sec
where; 166.6666666667e-6 = 166.6666666667µsec.
200e-3 = 166.6666666667msec.
Formats :curr:ac:aper <n> :curr[:dc]:aper <n>
:volt:ac:aper <n>:volt[:dc]:aper <n>
:res:aper <n>:fres:aper <n>
:temp:aper <n>
Defaults Power-up Saved power-on setup
*RST Power line cycle integration:
16.67msec for 60Hz power line
20msec for 50Hz and 400Hz power line
:SYSTem:PRESet Same as *RST
Query :APERture? Query programmed aperture value.
:APERture? DEFault Query *RST default aperture value.
:APERture? MINimumQuery minimum aperture value.
:APERture? MAXimumQuery maximum aperture value.