Keithley 6487 Reference Manual

Model 6487 Reference Manual SCPI Reference Tables 14-5
:SOURce2 <NDN> or
<NRf>
Set 4-bit “pass” pattern. 15 (see
note)
:SOURce2? Query output bit pattern.
:DATA? Return all CALC2 readings triggered by INI-
Tiate.
√
:LATest? Return only the last (latest) reading.
:NULL Configure and control Rel: 5 √
:ACQuire Use input signal as Rel value.
:OFFSet <NRf> Specify Rel value: -9.999999e20 to
9.999999e20.
0.0 √
:OFFSet? Query Rel value. √
:STATe <b> Enable or disable Rel. OFF √
:STATe? Query state of Rel. √
:CALCulate3 Path to configure and control CALC3 calculations
on buffer data:
6 √
:FORMat <name> Select buffer statistic; MEAN, SDEViation,
MAXimum, MINimum or PKPK.
MEAN √
:FORMat? Query selected statistic. √
:DATA? Read the selected buffer statistic. √
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%