Keithley 6482, Reference Manual

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16-22 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
DATA?
:CALCulate6:DATA? Read DELTA result
Description This query command is used to read the result of the CALC5 ratio calculation.
When enabled, the CALC5 reading will be ratio value determined by FORMat
(above). When disabled, or if a divide by zero error occurs, the CALC5 reading will
return a NAN (not a number) value of +9.91e37.
CALCulate7
The CALCulate7 commands configure and control the six limit tests:
• Limit 1: channel 1 compliance (hardware) limit test
• Limit 2: channel 2 compliance (hardware) limit test
• Limit 3 through Limit 6: software limits
Select input path
FEED <name>
:CALCulate7:FEED <name> Select input path for Limit 3-6 tests
Parameters <name> = CALCulate3 Use CALC3 result (channel 1 REL)
CALCulate4 Use CALC4 result (channel 2 REL)
CALCulate5 Use CALC5 result (ratio)
CALCulate6 Use CALC6 result (delta)
Query :FEED? Query input path for Limit 3-6 tests
Description This command is used to select the input path for the Limit 3-6 tests (software
limits). With CALCulate3 or CALCulate4 selected, the specified limits will be
compared to the result of CALC3 (channel 1 REL feed) or CALC4 (channel 2 REL
feed). With CALCulate5 selected, the specified limits will be compared with the
ratio result. With CALCulate6 selected, the specified limits will be compared with
the delta result.
Read limits data
DATA?
:CALCulate7:DATA? Read limits data
Description This command is used to acquire all the readings used for the CALC7 limit tests.
At least one of the limit tests must be enabled to acquire limit test readings. See
“Configure and control limit tests;” “STATe <b>,” page Section 16-23.
LATest?
:CALCulate7:DATA:LATest? Read latest CALC7 data
Description This command works exactly like CALC7:DATA?, except it returns only the latest
limit result.