User manual MATLAB SYSTEMTEST 2

[. . . ] SystemTestTM 2 User's Guide How to Contact The MathWorks Web Newsgroup www. mathworks. com/contact_TS. html Technical Support www. mathworks. com comp. soft-sys. matlab suggest@mathworks. com bugs@mathworks. com doc@mathworks. com service@mathworks. com info@mathworks. com Product enhancement suggestions Bug reports Documentation error reports Order status, license renewals, passcodes Sales, pricing, and general information 508-647-7000 (Phone) 508-647-7001 (Fax) The MathWorks, Inc. 3 Apple Hill Drive Natick, MA 01760-2098 For contact information about worldwide offices, see the MathWorks Web site. SystemTestTM User's Guide © COPYRIGHT 2006­2010 by The MathWorks, Inc. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. [. . . ] For detailed information on the Simulink data array format, or other formats supported by Simulink Inport blocks, see Importing and Exporting Simulation Data in the Simulink documentation. Mapping Simulink Model Outputs to Test Variables Using test variables you can assign the output from the following types of Simulink model data: · Logged signals -- Described in "Mapping Simulink Logged Signals to Test Variables" on page 4-14 · Outport signals -- Described in "Mapping Simulink Outport Signals to Test Variables" on page 4-16 · To Workspace blocks -- Described in "Mapping Simulink To Workspace Blocks to Test Variables" on page 4-18 4-13 4 Using the Simulink Element After you map model outputs to test variables, you can incorporate the model data into the SystemTest software. This section shows you how to map this data for the Inverted Pendulum example. Note The output from Simulink models can only be mapped to SystemTest test variables. You cannot map this output to SystemTest test vectors. Note If you are mapping logged signals, outport signals, or To Workspace blocks to test variables, as shown in the following procedures, then you can optionally use the Mappings Assistant if you want the variables to have the same names as the inputs. This is useful if your model contains many signals or blocks and you want to name the outputs the same way. You no longer have to create test variables with matching names manually. See "Using the Model Output Mappings Assistant" on page 4-20 for more information. Mapping Simulink Logged Signals to Test Variables Logged signals are a way to obtain outputs from a model without adding more outports. Using logged signals, you can identify a particular signal and map the output to a SystemTest test variable. To map logged signals to a SystemTest test variable: 1 Expand the Assign Model Outputs to SystemTest Data section of the Simulink element Properties pane, and click the New Mapping button. The SystemTest software adds a row for a new mapping of this type. 4-14 Mapping Test Vectors and Test Variables to a Simulink® Model 2 Specify the signal you want to capture. Click the Simulink Data field to see all the signals in the model. For the Inverted Pendulum example, select pendout. Note If you added logged signals to your model and they do not appear in this list, click the refresh button, on the Properties pane next to the model name, to update the list. 3 Specify the SystemTest test variable to which you want to map the output. Click the SystemTest Data field and select a test variable. For the Inverted Pendulum example, select st_loggedsignal. 4-15 4 Using the Simulink Element The SystemTest software creates the mapping to the test variable. Note If you are mapping logged signals to test variables, as shown in the above procedure, then you can optionally use the Mappings Assistant if you want the variables to have the same names as the inputs. This is useful if your model contains many signals or blocks and you want to name the outputs the same way. You no longer have to create test variables with matching names manually. See "Using the Model Output Mappings Assistant" on page 4-20 for more information. Mapping Simulink Outport Signals to Test Variables The SystemTest software lets you map all outport signals to a test variable for further processing in the SystemTest software. To map Simulink outport signals to a test variable: 1 In the Assign Model Outputs to SystemTest Data section of the Simulink element Properties pane, click the New Mapping button. The SystemTest software adds a row for a new mapping of this type. 2 Specify the outport signal you want to capture. Click the Simulink Data field and select a signal. For this example, select Out1. 4-16 Mapping Test Vectors and Test Variables to a Simulink® Model 3 Specify the SystemTest test variable to which you want to map the outport signals. Click the SystemTest Data field and select a test variable from the list. [. . . ] (For example, horzcat is invoked by []. ) Other functions access the collected data and must be called directly (for example, replacedata). Dataset arrays are implemented as MATLAB objects; the associated functions are their methods. It isn't necessary to understand objects and methods to make use of dataset arrays--in fact, dataset arrays are designed to behave as much as possible like other, familiar MATLAB arrays. B-4 Dataset Array Operations Dataset Array Operations This table lists available methods for dataset arrays. Many of the methods are invoked by familiar MATLAB operators and do not need to be called directly. [. . . ]