Smeast - Keithley 4200A-SCS Reference Manual

Hide thumbs Also See for 4200A-SCS:

Table of Contents

Section 13: LPT library function reference

smeast

This command returns timestamps referenced to sweep measurements or a system timer.

int meast(long timerID, double *tarray);

This command acquires the timestamp for each measurement step of a sweep. The timestamps are

returned in an array. The timestamps are posted to Clarius Analyze after the test has finished.

You can also use the smeastRT command to return timestamps in an array. It posts the frequency

values to Clarius in real time.

The timestamp can be referenced to the 4210-CVU (timerID = CVU1) or to a system timer (for

example, timerID = TIMER1). This command is similar to the meast command, but is synchronized

with a sweep to return a timestamp referenced to each measurement. If you need a timestamp for a

single measurement, use the meast command.

LPT maintains a list of measurements to be done at each sweep point after the forcing instrument

has stepped its source (V, I, or F). The smeasX and smeasXRT commands register the

measurement with a master list. If the time measurement precedes the Z measurement, then the

wrong timestamp is returned (the one from the previous measurement).

Programming example #2

(on page 13-177)

(on page 13-187)

The ID of the 4210-CVU or timer: CVU1, TIMER1, TIMER2, and so on

Returned array of timestamps

(on page 13-195) acquires a timestamp for each measurement in the

Model 4200A-SCS Parameter Analyzer Reference Manual

4200A-901-01 Rev. C / February 2017