Keithley 6487 Reference Manual

Model 6487 Reference Manual SCPI Reference Tables 14-7
Table 14-3
FORMat command summary
Command Description
Default
parameter
Ref
Section SCPI
:FORMat 13
[:DATA]
<type>[,<length>]
Specify data format; ASCii, REAL, 32, or
SREal.
ASC √
[:DATA]? Query data format. √
:ELEMents <item list> Specify data elements; READing, UNITs,
VSOurce, TIME, STATus, DEFault, and ALL.
All except
VSO
:ELEMents? Query data format elements.
:BORDer <name> Specify byte order; NORMal or SWAPped. (see Note) √
:BORDer? Query byte order. √
:SREGister <name> Select data format for reading status registers;
ASCii, HEXadecimal, OCTal, or BINary.
ASC
:SREGister? Query format for reading event registers.
:SOURce2 <name> Select data format for reading output patterns:
ASCii, HEXadecimal, OCTal, or BINary.
ASC
:SOURce2? Query data format for output patterns.
Note: *RST default is NORMal. SYSTem:PRESet default is SWAPped.
Table 14-4
SENSe command summary
Command Description
Default
parameter
Ref.
Section
SCPI
[:SENSe[1]]
[:FUNCtion][:<name>] Select measure function:
<name> = ‘CURRent[:DC]’
‘CURR’
:DATA Path to return instrument readings: 3 √
[:LATest]? Return the last instrument reading. √
[:CURRent[:DC]] Path to configure amps function: √
:NPLCycles <NRf> Set integration rate in line cycles (PLC):
0.01 to 60.0 (60 Hz) or 50.0 (50Hz).
6 (60Hz)
5 (50Hz)
4 √
:NPLCycles? Query NPLC. √

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%