Keithley 2001

IEEE-488 Reference
4-205
Triggering  In stream, the trigger model functions normally except that the Manual and Hold
control sources cannot be used. The Group Execute Trigger (GET) is functional when the Bus
control source is selected. For optimum speed, set up the measure layer for Immediate control
source, infinite count and zero delay.
Reading Rates  The maximum possible reading rate for the SSTReam mode is 2000 per sec-
ond and is only achievable for controllers that can pull each reading out of the Model 2001 in
less than 100µsec. The maximum possible reading rate for the ASTReam mode is 1000 per sec-
ond. Maximum reading rates require that the measure layer of the trigger model be configured
for the Immediate control source, infinite count and zero delay. When externally triggered (EXT,
TLINK, TIMER or GET), the maximum reading rate for either stream mode is 680 per second.
Programming example Burst acquisition
10 OUTPUT 716; “:syst:pres”
20 OUTPUT 716; “:syst:amet burs”
30 OUTPUT 716; “:init”
40 END
Table 4-30
Minimum delay times for stream mode
Function Range Delay (msec)
DCV
ACV (RMS and average)
DCI
ACI (RMS and average)
Ω2
200mV
2V
20V
200V
1000V
200mV
2V
20V
200V
750V
200µA
2mA
20mA
200mA
2A
200µA
2mA
20mA
200mA
2A
20Ω
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
20MΩ
200MΩ
1GΩ
150
160
150
220
210
270
260
210
200
210
130
140
170
140
190
230
180
230
220
160
190
180
140
170
270
880
1840
1920
1920