Keithley 6482, Reference Manual

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16-24 Return to Section Topics 6482-901-01 Rev. A / August 2012
Section 16: SCPI Command Reference Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
FAIL?
:CALCulate7:LIMit[1]:FAIL? Read Limit 1 (channel 1) test result
:CALCulate7:LIMit2:FAIL? Read Limit 2 (channel 2) test result
:CALCulate7:LIMitx:FAIL? Read Limit x test result (x = 3-6)
Description These commands are used to read the pass/fail results of Limit 1 through Limit 6
tests:
0 = Limit test passed
1 = Limit test failed
The response message (0 or 1) only tells you if a limit test has passed or failed.
For Limit 3-6, it does not tell you which limit (upper or lower) has failed. To deter-
mine which limit has failed, you must read the measurement event register. See
“STATus subsystem,” page Section 16-50.
Reading the results of a limit test does not clear the fail indication of the test. A
failure can be cleared by using a :CLEar command.
Clear test results
[:IMMediate]
:CALCulate7:CLIMits:CLEar[:IMMediate]Clears test results
Description This command clears the test results (pass or fail) of the limit tests.
AUTO <b>
:CALCulate7:CLIMits:CLEar:AUTO <b>Control auto-clear for test results
Parameters <b> = 1 or ON Enable auto-clear
0 or OFF Disable auto-clear
Query :AUTO? Query state of auto-clear
Description With auto-clear enabled, test results will clear when the :INITiate command is sent
to start a new test sequence.
When disabled, you must use :IMMediate to perform the clear actions.
CALCulate8
This CALCulate8 commands provide statistical data on buffer readings.
Select statistic
FORMat <name>
:CALCulate8:FORMat <name> Specify channel 1 buffer format
Parameters <name> = MEAN Mean value of readings in buffer
SDEViation Standard deviation of readings in buffer
MAXimum Largest reading in buffer
MINimum Lowest reading in buffer
PKPK MAXimum - MINimum
Query :FORMat? Query programmed buffer math format
Description This command is used to select the statistic on readings stored in the channel 1
buffer. See
Section 6 for details on these statistics.