Keithley 6221 User Manual

Model 6220/6221 Reference Manual SCPI Reference Tables 14-3
Return to Section 14 topics
Table 14-1
Calculate command summary
Command Description Default Sec SCPI
CALCulate[1] CALC1 commands (math calculations): 6
:FORMat <name> Select math format: NONE, MXB (mX+b), or
RECiprocal (m/X+b)
MXB
:FORMat? Query math format.
:KMATh Configure math calculations:
:MMFactor <NRf> Set “m” for mX+b and m/X+b calculation:
-9.99999e20 to 9.99999e20
1.0
:MMFactor? Query “m” factor.
:MA1Factor <NRf> Set “m” for mX+b and m/X+b calculation:
(same as MMFactor)
1.0
:MA1Factor? Query “m” factor.
:MBFactor <NRf> Set “b” for mX+b and m/X+b calculation:
-9.99999e20 to 9.99999e20
0.0
:MBFactor? Query “b” factor.
:MA0Factor <NRf> Set “b” for mX+b and m/X+b calculation:
(same as MMFactor)
0.0
:MA0Factor? Query “b” factor.
:S TATe < b > Enable or disable CALC1 calculation. OFF √
:STATe? Query state of CALC1 calculation. √
:DATA Read calculation: √
[:LATest]? Return latest CALC1 reading. √
:FRESh? Same as CALC1:DATA? except reading
can only be returned once.
√
CALCulate2 CALC2 commands (buffer statistics): 6
:FORMat <name> Select buffer statistic: MEAN, SDEViation,
MAXimum, MINimum or PKPK
MEAN √
:FORMat? Query selected statistic. √
:S TATe < b > Enable or disable calculation. OFF √
:IMMediate Perform the selected buffer calculation on buffer
contents.
√
:DATA? Read the results of the buffer statistic. √
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Keithley 6221 Specifications

General

Interface	GPIB, RS-232
Communication Interface	GPIB, RS-232
Current Sourcing Accuracy	±(0.03% of output + 20 pA)
Current Sinking Accuracy	±(0.03% of output + 20 pA)
Output Resolution	100 fA
Output Accuracy	±(0.03% of output + 20 pA)
Power Requirements	100 V to 240 V AC, 50/60 Hz