Keithley 6487 Reference Manual

Model 6487 Reference Manual DDC Emulation Commands C-7
Integration
Period
S0 Fast integration (1.6msec at 4-1/2 digit resolution)
[SENSe[1]]:FUNCtion:NPLCycles 0.1 (at 60Hz)
S1 Line cycle (16.67msec, 60Hz; 20msec, 50Hz; 5-1/2d)
[SENSe[1]]:FUNCtion:NPLCycles 1.0 (at 60Hz)
Trigger
Mode
T0 Continuous, triggered by talk SCPI not
available
T1 One-shot, triggered by talk
ARM[:SEQuence[1]]:COUNt 1
TRIGger[:SEQuence[1]]:COUNt 1
Only in
488.1 mode
T2 Continuous, triggered by GET
ARM[:SEQuence[1]]:SOURce BUS
ARM[:SEQuence[1]]:COUNt 1
TRIGger[:SEQuence[1]]:COUNt INF
INIT[:IMMediate]
T3 One-shot, triggered by GET
ARM[:SEQuence[1]]:SOURce BUS
ARM[:SEQuence[1]]:COUNt INF
TRIGger[:SEQuence[1]]:COUNt 1
INIT[:IMMediate]
T4 Continuous, triggered by X SCPI Not
Available
T5 One-shot, triggered by X SCPI Not
Available
T6 Continuous, triggered by External Trigger
ARM[:SEQuence[1]]:SOURce TLINk
ARM[:SEQuence[1]]:SOURce COUNt 1
TRIGger[:SEQuence[1]]:COUNt INF
INITiate[:IMMediate]
X
T7 One-shot, triggered by External Trigger
ARM[:SEQuence[1]]:SOURce TLINk
ARM[:SEQuence[1]]:SOURce COUNt INF
TRIGger[:SEQuence[1]]:COUNt 1
INITiate[:IMMediate]
T8 Continuous on Operate SCPI Not
Available
T9 One-shot on Operate SCPI Not
Available
Table C-1 (co n t .)
Device dependent command summary
Mode Command
Description
Equivalent SCPI or 488.2 commands
Note Default

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%