Using the Solar Array Simulator 4
Series E4360 User’s Guide 69
Program the List
The following procedure shows how to program a list of I-V curves.
Step 1. Set the SAS mode to List.
Front Panel:
SCPI Command:
Select Output\SAS\Source. Set
the SAS mode to List. Press
Select.
To program output 1, use
CURR:SAS:MODE LIST,(@1)
Step 2. Program the list of values for the List function. Each parameter must
have the same number of values. The order in which the values are
entered determines the order in which they are output.
Front Panel:
SCPI Command:
Select
.
Select the List Step number and
enter values into the Vmp, Voc,
Imp, and Isc boxes and press
Enter.
Repeat for each step. Use the
keys to select the next step.
To program Vmp, Voc, Imp, and
Isc:
LIST:SAS:VMP 85,90,90,88,85,(@1)
LIST:SAS:VOC 90,95,95,90,90,(@1)
LIST:SAS:IMP 4,3,3,3,2,(@1)
LIST:SAS:ISC 5,4,4,4,3,(@1)
Step 3. Determine the time interval, in seconds, that the output remains at each
step in a list before it advances to the next step.
Front Panel:
SCPI Command:
Select
.
Select the List Step number and
enter a dwell value. Press Enter.
Repeat for each step. Use the
keys to select the next step.
To program dwell values:
LIST:DWEL 2,3,5,5,4,(@1)
The number of dwell values must equal the number of curve values. If a
dwell list has only one value, that value will be applied to all curves in
the list.
Step 4. Specify how the lists are paced: by dwell times, or external triggers.
Front Panel:
SCPI Command:
Select Transient\List\Pace.
Select Dwell or Trigger-paced.
Press Select.
To select dwell-paced:
LIST:STEP AUTO,(@1)
To select trigger-paced:
With dwell-pacing, the dwell values entered in step 3 pace the list. The
dwell time determines the minimum time that the output remains at
each curve. As each dwell time elapses, the next curve is immediately
output. With trigger-pacing, the list advances one curve for each trigger
received.
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