Purpose

This example demonstrates using the Property Loader step type to load the properties for multiple sequences in a client sequence file. The example loads properties at the beginning of the MainSequence.

Example File Location

<TestStand Public>\Examples\Built-In Step Types\Property Loader Step Type\Property Loader - Loading Limits For Multiple Sequences.seq

Highlighted Features

Property Loader steps

Major API

None

Prerequisites

None

How to Use This Example

Complete the following steps to change properties that already exist in a sequence.

  1. Select the MainSequence.
  2. On the Steps pane, select the Property Loader step.
  3. On the Step Settings pane, click the Step Settings tab. Click the View File button in the sources table to open propertyData.txt, which is located in the same directory as the example sequence file and is the file the Property Loader step is using to specify property values. The text file specifies a data block for each sequence in the sequence file so the step can load different values for the same property in different sequences. The Start and End of Data markers for the data block include the name of the sequence. In the text file, the Properties for Sequence 1 section specifies the limits for the Numeric Limit Test step as 15 for Limits.Low and 20 for Limits.High. The text file contains very specific formatting to which you must adhere for the Property Loader step to function correctly. The best method for generating a file for use with a Property Loader step is to specify the properties in the sequence file and then select Tools»Import/Export Properties to launch the Import/Export Properties dialog box, in which you can generate a file that a Property Loader step can use.
  4. Select Execute»Single Pass to run the sequence.
  5. When execution completes, review the report on the Report pane. Notice that the limit values in each subsequence have changed to the values specified by the property file.