Keithley 2520, Краткое руководство пользователя

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22 Quick Reference Guide
NOTE Table 7 and Table 8 do not provide a complete listing of sweep commands.
Documentation for all sweep commands can be found in Section 14 of the
Model 2520 User’s Manual.
Table 7
Commands for linear and log staircase sweeps
Command Description*
:SOURce[1]:CURRent:MODE SWEep
:SOURce[1]:CURRent:STARt <current>
:SOURce[1]:CURRent:STOP <current>
:SOURce[1]:CURRent:STEP <current>
:SOURce[1]:CURRent:CENTer <current>
:SOURce[1]:CURRent:SPAN <current>
:SOURce[1]:SWEep:SPACing <type>
:SOURce[1]:SWEep:POINts <points>
:SOURce[1]:SWEep:DIRection <direction> Select staircase sweep mode.
Specify sweep start current (0 to 5).
Specify sweep stop current (0 to 5).
Specify sweep step current (0 to 5).
Specify sweep center current (0 to 5).
Specify sweep span current (0 to 5).
Select staircase sweep type (LINear or LOGarithmic).
Set number of sweep points (2 to 1000).
Set sweep direction. UP (sweep start to stop) or DOWN
(sweep stop to start).
* Maximum DC mode current is 1A. Maximum pulse mode current is 5A.
Table 8
Custom (list) sweep commands
Command Description
:SOURce[1]:CURRent:MODE LIST
:SOURce[1]:LIST:CURRent < I-list>
:SOURce[1]:LIST:CURRent:APPend <I-list>
:SOURce[1]:LIST:CURRent:POINts?
:SOURce[1]:LIST:DELay < D-list>
:SOURce[1]:LIST:DELay:APPend <D-list>
:SOURce[1]:LIST:DELay:POINts?
:SOURce[1]:LIST:WIDTh < W-list>
:SOURce[1]:LIST:WIDTh:APPend <W-list>
:SOURce[1]:LIST:WIDTh:POINts?
:SOURce[1]:LIST:DIRection <direction>
Select current list (custom) sweep mode.
Define I-source list (I1, I2,… In; 0 to 5, 100 max
points).
1
Add I-source list value(s) (I1, I2,…In; 0 to 5, 100 max).
1
Query length of I-source list.
Define pulse delay (D1, D2,… Dn; 20e-6 to 0.5).
2
Add pulse delay list value(s) (D1, D2,…Dn; 20e-6 to
0.5).
2
Query length of pulse delay list.
Define pulse width list (W1, W2,… Wn; 500e-9 to
5e-3).
2
Add pulse width list value(s) (W1, W2,…Wn; 500e-9 to
5e-3).
2
Query length of pulse width list.
Set sweep direction (UP or DOWN).
1
5A maximum pulse mode only. 1A maximum in DC mode.
2
Minimum and default pulse delay and width values depend on pulse duty cycle. See Model 2520 specifications. If delay and width
are not programmed, default values of 1.5ms (delay) and 500ns (width) will be used, but queries will return 0.