Keithley 4200-SCS Reference Manual page 707

Model 4200-SCS Reference Manual
pulse_limits
Purpose
Pulsers
Pulse mode
Format
Remarks
Example
pulse_meas_sm
pulse_meas_wfm
pulse_meas_timing
Purpose
Pulsers
Pulse mode
4200-901-01 Rev. S / May 2017
Sets voltage, current, and power thresholds
Sets measured voltage and current thresholds at the DUT. Also sets the power
threshold for each channel.
Model 4225-PMU
Standard
int pulse_limits(INSTR_ID instr_id, int chan, double V_Limit,
double I_Limit, double Power_Limit);
instr_id
chan
V_Limit
I_Limit
Power_Limit
This feature is different from a SMU compliance setting, in that threshold checking is
performed after each burst of pulses, using the spot mean values to compare to the
specified thresholds. The thresholds are checked against all enabled measurements for
the channel. If a threshold is reached or exceeded, the present sweep is stopped and
testing continues with any subsequent sweeps.
This feature doesn't prevent the set thresholds from being reached or exceeded. After
detecting a threshold breach, it simply aborts the sweep.
Maximum power for each PMU source range:
High-speed voltage source (10 V) range: Maximum power = 5 V x 0.1 A = 0.5 W
High-voltage source (40 V) range: Maximum power = 20 V x 0.4 A = 8 W
This function sets thresholds for channel 1 of the PMU:
pulse_limits(PMU1, 1, 42, 1, 10);
Instr_id = PMU1
chan = 1 (channel 1)
V_Limit = 42 V
I_Limit = 1 A
Power_Limit = 10 W
Configures spot mean measurements
Configures waveform measurements
Sets the measurement windows
pulse_meas_sm
pulse_meas_wfm
pulse_meas_timing This function sets the measurement windows.
Model 4225-PMU
Standard
Return to
Instrument ID: PMU1, PMU2, and so on.
Pulse generator channel: 1 or 2.
Measured voltage (V) threshold at the DUT.
Measured current (A) threshold at the DUT.
Power (W) threshold for the channel (Power = Vmeas x
Imeas).
This function configures spot mean measurements.
This function configures waveform measurements.
Section Topics
Section 8: Keithley User Library Tool (KULT)
8-191