13: LPT library function reference Model 4200A-SCS Parameter Analyzer
13-38 4200A-901-01 Rev. C / February 2017
scnmeas
This command makes a single measurement on multiple instruments at the same time.
Usage
int scnmeas(void);
Details
This command behaves like a single point sweep. It makes a single measurement on multiple
instruments at the same time. Any forcing or delaying must be done before calling scnmeas.
smeasX, sintgX, or savgX must be used to set up result arrays just as is done for a sweep call.
Each call to scanmeas adds one element to the end of each array.
Calls to scnmeas may be mixed with calls to sweepX, and all results are appended to the result
arrays in the same way multiple sweepX calls behave.
Also see
savgX (on page 13-36)
sintgX (on page 13-44)
smeasX (on page 13-45)
searchX
This command is used to determine the voltage or current required to get a current or voltage. It is useful in
finding initial threshold points such as junction breakdown or transistor turn on.
Usage
int searchi(int instr_id, double min_val, double max_val, long iterate_no, double
iterate_time, double *result);
int searchv(int instr_id, double min_val, double max_val, long iterate_no, double
iterate_time, double *result);
The instrument identification code of the sourcing instrument
The lower limit of the source range
The upper limit of the source range
The number of separate current or voltage levels to generate; the range of iterations
is from 1 through 16
The duration, in seconds, of each iteration
The floating point variable assigned to the search operation result; it represents the
voltage, with the searchv command, or current, with the searchi command,
applied during the last search operation
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