Keithley 6487 Reference Manual

Model 6487 Reference Manual SCPI Reference Tables 14-3
:CALCulate[1] 5
:KMATh
:MA0Factor <NRf> Set “b” for mX+b and m/X+b calculation
(same as MBFactor).
1.0
:MA0Factor? Query “b” factor (same as MBFactor?).
:MUNits <name> Specify units for mX+b or m/X+b result:
1 character: A–Z, ‘[‘=Ω, ‘\’=°, ‘]’=%.
“X”
:MUNits? Query units.
:STATe <b> Enable or disable CALC1 calculation. OFF √
:STATe? Query state of CALC1 calculation. √
:DATA? Return all CALC1 results triggered by INITiate. √
:LATest? Return last (latest) reading.
:CALCulate2 Path to configure and control limit testing
(CALC2):
8 √
:FEED <name> Select input path for limit testing: CALCulate[1]
or SENSe[1].
SENS √
:FEED? Query input path for limit tests. √
:LIMit[1] Limit 1 Testing: √
:UPPer Configure upper limit: √
[:DATA] <n> Set limit: -9.99999e20 to 9.99999e20. 1.0 √
[:DATA]? Query upper limit. √
:SOURce2 <NDN> or
<NRf>
Specify 4-bit I/O “fail” pattern (0 to 15). 15 (see
note)
√
:SOURce2? Query output pattern value. √
:LOWer Configure lower limit: √
[:DATA] <n> Set limit: -9.99999e20 to 9.99999e20. -1.0 √
[:DATA]? Query lower limit. √
:SOURce2 <NDN> or
<NRf>
Specify 4-bit I/O “fail” pattern (0 to 15). 15 (see
note)
√
SOURce2 parameter values:
<NRf> = 0 to 15 Decimal format
<NDN> = #Bxxxx Binary format (each x = 1 or 0)
= #Hx Hexadecimal format (x = 0 to F)
= #Qxx Octal format (x = 0 to 17)
Table 14-1 (cont.)
CALCulate command summary
Command Description
Default
parameter
Ref
Section SCPI

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%