Postdatadoublebuffer - Keithley 4200A-SCS Reference Manual

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Section 13: LPT library function reference

PostDataDoubleBuffer

This buffer posts PMU data retrieved from the buffer into the Clarius Analyze sheet (large data sets).

int PostDataDoubleBuffer(char *ColName, double *array, int length);

Standard and Segment Arb

You can use the PostDataDouble and PostDataDoubleBuffer commands to post

double-precision floating point data into the Clarius Analyze sheet. Up to 65,535 points (rows) of data

can be posted into the Analyze sheet. These commands are used after one measurement point is

finished and a data value is assigned to the corresponding output variable.

You can use either of these commands to post data into the sheet. However, you should use the

PostDataDoubleBuffer command to post the large data sets that are typically generated by PMU

waveform measurements.

The following sequence summarizes the process to post data into the Analyze sheet:

Use pulse_fetch to retrieve the data from the buffer. You can analyze or manipulate the

retrieved data.

Use PostDataDouble or PostDataDoubleBuffer to post data into the Analyze sheet.

When you use pulse_fetch, you can either wait until the test is finished before retrieving data or

you can retrieve blocks of data while the test is running, which is useful for a test that takes a long

time. Instead of waiting for the entire test to finish, you can retrieve blocks of data at prescribed

intervals. For details, see "Data retrieval options for pulse_fetch" in the

101) command Details section.

If you do not need to analyze or manipulate the test data before posting it into the Analyze sheet in

Clarius, you can use pulse_measrt, which retrieves all the test data in pseudo real-time and

automatically posts it into the Clarius Analyze sheet.

PostDataDoubleBuffer is not compatible with using KXCI to call user libraries remotely (see

Calling KULT user libraries remotely

(UTMs) that will be called using KXCI.

Column name for the data array in the Clarius Analyze sheet

An array of data values for the Clarius Analyze sheet

Number of data points (up to 65,535) to post into the Clarius Analyze sheet

(on page 9-81)). Use PostDataDouble for user routines

Model 4200A-SCS Parameter Analyzer Reference Manual

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

(on page 13-