MTS TW Elite User Manual

4.8 (5)

MTS TestSuite

TW Elite Test Design Guide

100-234-122 G

be certain.

Trademark Information

MTS is a registered trademark of MTS Systems Corporation within the United States. This trademark may be protected in other countries.All other trademarks or service marks are property of their respective owners.

Proprietary Software

Software use and license is governed by MTS’s End User License Agreement which defines all rights retained by MTS and granted to the End User. All Software is proprietary, confidential, and owned by MTS Systems Corporation and cannot be copied, reproduced, disassembled, decompiled, reverse engineered, or distributed without express written consent of MTS.

Software Verification and Validation

MTS software is developed using established quality practices in accordance with the requirements detailed in the ISO 9001 standards. Because MTS-authored software is delivered in binary format, it is not user accessible. This software will not change over time. Many releases are written to be backwards compatible, creating another form of verification.The status and validity of MTS’s operating software is also checked during system verification and routine calibration of MTS hardware. These controlled calibration processes compare the final test results after statistical analysis against the predicted response of the calibration standards. With these established methods, MTS assures its customers that MTS products meet MTS’s exacting quality standards when initially installed and will continue to perform as intended over time.

Manual Part Number—Publication Date—Release

100-234-122 G—February 2014—MTS TestSuite TW 2.3.4 or later 100-234-122 F—September 2013—MTS TestSuite TW 2.3.1 100-234-122 E—August 2013—MTS TestSuite TW 2.3 100-234-122 D—January 2013—MTS TestSuite TW 2.2 100-234-122 C—December 2012—MTS TestSuite TW 2.1

	Table of Contents
Table of Contents
Preface
Before You Begin.............................................................................................................................................	7
Documentation Conventions............................................................................................................................	7
Technical Support
How to Get Technical Support.......................................................................................................................	11
Before You Contact MTS...............................................................................................................................	11
If You Contact MTS by Phone.......................................................................................................................	13
Problem Submittal Form in MTS Manuals....................................................................................................	14
Introduction
About This Guide...........................................................................................................................................	16
Start TWE and Open the Example Test..........................................................................................................	17
TWE Main Window.......................................................................................................................................	17
Main Window Toolbar.......................................................................................................................	20
About the Multi-Head Run Section....................................................................................................	21
Multi-Head Run Section Properties...................................................................................................	22
Examine the Example Test
About this Chapter.........................................................................................................................................	26
Design Flow...................................................................................................................................................	26
Define Tab......................................................................................................................................................	27
Outline View in the Procedure Subtab...............................................................................................	27
Workflow in the Procedure Subtab....................................................................................................	28
Set Up Section........................................................................................................................	29
Run Section............................................................................................................................	30
Examining the Logic in the Run Section................................................................................	32
Program Command in the Example Test................................................................................	33
Branches in the Parallel Paths Activity..................................................................................	34
Go To + DAQ + Detection Activity.......................................................................................	35
Finish Section.........................................................................................................................	39
Test-Run Display Subtab....................................................................................................................	40
Variables Subtab.................................................................................................................................	40
Variable Definition.................................................................................................................	41
Variable Use in the Example Test...........................................................................................	41
Variable Availability Attributes..............................................................................................	42
Report Templates Subtab....................................................................................................................	43
Functions Subtab................................................................................................................................	44

Table of Contents
Resources Subtab...............................................................................................................................	45
Test Definition Subtab........................................................................................................................	47
Monitor Tab....................................................................................................................................................	49
Review Tab Layout........................................................................................................................................	51
Review Tab Toolbar...........................................................................................................................	52
Test Run Results Table.......................................................................................................................	53
Statistics Table....................................................................................................................................	54
Panel of Charts and Tables.................................................................................................................	54
Four-Panel View.................................................................................................................................	56
Runtime Values Tab........................................................................................................................................	57
Design Guidelines
About this Chapter.........................................................................................................................................	60
Designing Tests..............................................................................................................................................	60
Test Design Checklist.........................................................................................................................	60
Tests and Templates............................................................................................................................	61
Choosing a Template to Run or Modify.................................................................................	61
File Icons................................................................................................................................	61
Working with Templates and Tests.........................................................................................	62
Modifying Tests..................................................................................................................................	63
Adding and Configuring Test Activities................................................................................	63
Considerations for Test Sections ...........................................................................................	65
Configuring What is Displayed After Test Runs....................................................................	67
Interacting with the Operator During Tests............................................................................	67
Run-Time Markers.................................................................................................................	67
Batch Mode Tests...................................................................................................................	67
Pre-Allocating Multiple Test Runs.........................................................................................	68
Working With Variables.....................................................................................................................	69
Variable Concepts ..................................................................................................................	69
Benefits of Using Variables....................................................................................................	69
Using Variables in Activities..................................................................................................	70
Toggling Between Static Values and Variables......................................................................	70
Variable Example...................................................................................................................	70
Manipulating Variables in the Workflow ..............................................................................	71
Assigning Variable Availability..............................................................................................	72
Adding Calculations to Variables ..........................................................................................	72
Managing Variables................................................................................................................	73
Used By Table Column..........................................................................................................	74
Configuring Data Acquisition............................................................................................................	74
Data Acquisition Properties Page...........................................................................................	74
Mapping Variables to Acquired Data.....................................................................................	74
Acquiring Data in a Continuous Stream.................................................................................	75

	Table of Contents
Acquiring Data in Blocks Without Mode Switching.............................................................	75
Acquiring Data in Blocks With Mode Switching...................................................................	75
Setting Buffer Size.................................................................................................................	75
Data Acquisition for Test-Run Displays................................................................................	76
Polarity Considerations for MTS Criterion Series 40 Systems .........................................................	76
Debugging..........................................................................................................................................	78
Automatic Saves and Experimentation..................................................................................	79
Rapid Design Iterations..........................................................................................................	79
Activity State in Outline View...............................................................................................	79
Test Procedure Test-Run Display...........................................................................................	79
Runtime Values Tab................................................................................................................	79
Modify the Example Test
About this Chapter.........................................................................................................................................	82
Modifying Tests..............................................................................................................................................	82
Design Scenario..............................................................................................................................................	83
Modifying the Set Up Section............................................................................................................	83
Formula Assistant File...........................................................................................................	84
Changing the Specimen Geometry.........................................................................................	84
Adding an Input Variables Activity .......................................................................................	86
Moving and Enabling Run External Application Activity.....................................................	88
Modifying the Run Section................................................................................................................	88
Enable and Configure the Custom Message Window Activity..............................................	89
Editing the Go To + DAQ + Detection Activity ...................................................................	90
Modifying the Finish Section.............................................................................................................	92
Changing the Maximum Test Runs Variable..........................................................................	92
Enabling and Configuring the Run Report Activity...............................................................	93
Working with MTS FlexTest Resources
Resource Basics..............................................................................................................................................	96
Connecting to a Controller.............................................................................................................................	96
Creating a Desktop Shortcut That Includes a Controller...............................................................................	98
Station Configurations....................................................................................................................................	98
Controller Resources......................................................................................................................................	99
Resource Mapping..........................................................................................................................................	99
Offline Test Design......................................................................................................................................	102
Resources That Allow Dimension Changes.................................................................................................	103
Considerations for Servohydraulic Systems
Understand Software Concepts....................................................................................................................	106
Using MTS TestSuite with Controller Software..........................................................................................	106

Table of Contents
Station Controls Panel......................................................................................................................	107
Station Configuration Files..............................................................................................................	108
TWE Startup.....................................................................................................................................	109
Working with Limits........................................................................................................................	109
Set Station Detector Limits..................................................................................................	110
Access and Set Detector Settings.........................................................................................	110
Reset Detectors.....................................................................................................................	112
Using Manual Command to Install the Specimen............................................................................	112
Manual Command Properties...............................................................................................	112
Manually Position the Actuator............................................................................................	114
Applying Offsets to the Input Signal (optional)...............................................................................	115
Apply an Auto Offset to an Input Signal..............................................................................	115
Apply a Manual Offset to an Input Signal...........................................................................	115
TW Elite for TestWorks 4 Users
About this Chapter.......................................................................................................................................	118
Basic Concepts.............................................................................................................................................	118
Terminology Differences..............................................................................................................................	119
Functional Differences.................................................................................................................................	122
Converting TestWorks 4 Methods and Sample Files...................................................................................	125
Conversion Issues for MTS FlexTest Controllers........................................................................................	125

Preface

Before You Begin

Safety first!

Before you use your MTS product or system, read and understand the safety information provided with your system. Improper installation, operation, or maintenance can result in hazardous conditions that can cause severe personal injury or death, or damage to your equipment and specimen. Again, read and understand the safety information provided with your system before you continue. It is very important that you remain aware of hazards that apply to your system.

Other MTS manuals

In addition to this manual, you may receive additional manuals in paper or electronic form.

You may also receive an MTS System Documentation CD. It contains an electronic copy of the manuals that pertain to your test system.

Controller and application software manuals are typically included on the software CD distribution disc(s).

Documentation Conventions

The following paragraphs describe some of the conventions that are used in your MTS manuals.

Hazard conventions

Hazard notices may be embedded in this manual. These notices contain safety information that is specific to the activity to be performed. Hazard notices immediately precede the step or procedure that may lead to an associated hazard. Read all hazard notices carefully and follow all directions and recommendations. Three different levels of hazard notices may appear in your manuals. Following are examples of all three levels. (for general safety information, see the safety information provided with your system.)

Danger:

Danger notices indicate the presence of a hazard with a high level of risk which, if ignored, will result in death, severe personal injury, or substantial property damage.

MTS TestSuite | 7

Preface

Warning:

Warning notices indicate the presence of a hazard with a medium level of risk which, if ignored, can result in death, severe personal injury, or substantial property damage.

Caution:

Caution notices indicate the presence of a hazard with a low level of risk which, if ignored, could cause moderate or minor personal injury or equipment damage, or could endanger test integrity.

Other special text conventions

Important:

Important notices provide information about your system that is essential to its proper function. While not safety-related, if the important information is ignored, test results may not be reliable, or your system may not operate properly.

Note:

Notes provide additional information about operating your system or highlight easily overlooked information.

Recommended:

Recommended notes provide a suggested way to accomplish a task based on what MTS has found to be most effective.

Tip:

Tips provide helpful information or a hint about how to most efficiently accomplish a task.

Access:

Access provides the route you should follow to a referenced item in the software.

Examples show specific scenarios relating to your product and appear with a shaded background.

Special terms

The first occurrence of special terms is shown in italics.

Illustrations

Illustrations appear in this manual to clarify text. They are examples only and do not necessarily represent your actual system configuration, test application, or software.

8 | MTS TestSuite

Preface

Electronic manual conventions

This manual is available as an electronic document in the Portable Document File (PDF) format. It can be viewed on any computer that has Adobe Acrobat Reader installed.

Hypertext links

The electronic document has many hypertext links displayed in a blue font. All blue words in the body text, along with all contents entries and index page numbers, are hypertext links. When you click a hypertext link, the application jumps to the corresponding topic.

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Technical Support

How to Get Technical Support

Start with your manuals

The manuals supplied by MTS provide most of the information you need to use and maintain your equipment. If your equipment includes software, look for online help and README files that contain additional product information.

Technical support methods

MTS provides a full range of support services after your system is installed. If you have any questions about a system or product, contact Technical Support in one of the following ways.

Web site	www.mts.com > Contact Us (upper-right corner) > In the Subject field, choose
	To escalate a problem; Problem Submittal Form
E-mail	Worldwide: tech.support@mts.com
	Europe: techsupport.europe@mts.com
Telephone	Worldwide: 1 800 328 2255 - toll free in U.S.; +1 952 937 4000 - outside U.S.
	Europe: +800 81002 222, International toll free in Europe

Outside the U.S.

For technical support outside the United States, contact your local sales and service office. For a list of worldwide sales and service locations and contact information, use the Global MTS link at the MTS web site:

www.mts.com > Global Presence > Choose a Region

Before You Contact MTS

MTS can help you more efficiently if you have the following information available when you contact us for support.

Know your site number and system number

The site number contains your company number and identifies your equipment type (such as material testing or simulation). The number is typically written on a label on your equipment before the system leaves MTS. If you do not know your MTS site number, contact your sales engineer.

Example site number: 571167

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Technical Support

When you have more than one MTS system, the system job number identifies your system. You can find your job number in your order paperwork.

Example system number: US1.42460

Know information from prior technical assistance

If you have contacted MTS about this problem before, we can recall your file based on the:

•MTS notification number

•Name of the person who helped you

Identify the problem

Describe the problem and know the answers to the following questions:

•How long and how often has the problem occurred?

•Can you reproduce the problem?

•Were any hardware or software changes made to the system before the problem started?

•What are the equipment model numbers?

•What is the controller model (if applicable)?

•What is the system configuration?

Know relevant computer information

For a computer problem, have the following information available:

•Manufacturer’s name and model number

•Operating software type and service patch information

•Amount of system memory

•Amount of free space on the hard drive where the application resides

•Current status of hard-drive fragmentation

•Connection status to a corporate network

Know relevant software information

For software application problems, have the following information available:

•The software application’s name, version number, build number, and (if available) software patch number. This information can typically be found in the About selection in the Help menu.

•The names of other applications on your computer, such as:

—Anti-virus software

—Screen savers

—Keyboard enhancers

—Print spoolers

12 | MTS TestSuite

Technical Support

— Messaging applications

If You Contact MTS by Phone

A Call Center agent registers your call before connecting you with a technical support specialist. The agent asks you for your:

•Site number

•Name

•Company name

•Company address

•Phone number where you can be reached

If your issue has a notification number, please provide that number. A new issue will be assigned a unique notification number.

Identify system type

To enable the Call Center agent to connect you with the most qualified technical support specialist available, identify your system as one of the following types:

•Electrodynamic material test system

•Electromechanical material test system

•Hydromechanical material test system

•Vehicle test system

•Vehicle component test system

•Aero test system

Be prepared to troubleshoot

Prepare to perform troubleshooting while on the phone:

•Call from a telephone close to the system so that you can implement suggestions made over the phone.

•Have the original operating and application software media available.

•If you are not familiar with all aspects of the equipment operation, have an experienced user nearby to assist you.

Write down relevant information

In case Technical Support must call you:

•Verify the notification number.

•Record the name of the person who helped you.

MTS TestSuite | 13

Technical Support

•Write down any specific instructions.

After you call

MTS logs and tracks all calls to ensure that you receive assistance for your problem or request. If you have questions about the status of your problem or have additional information to report, please contact Technical Support again and provide your original notification number.

Problem Submittal Form in MTS Manuals

Use the Problem Submittal Form to communicate problems with your software, hardware, manuals, or service that are not resolved to your satisfaction through the technical support process. The form includes check boxes that allow you to indicate the urgency of your problem and your expectation of an acceptable response time. We guarantee a timely response—your feedback is important to us.

You can access the Problem Submittal Form at www.mts.com > Contact Us (upper-right corner) > In the

Subject field, choose To escalate a problem; Problem Submittal Form

14 | MTS TestSuite

Introduction

Topics:
•	About This Guide...............................................................................................................................	16
• Start TWE and Open the Example Test............................................................................................		17
•	TWE Main Window............................................................................................................................	17

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Introduction

About This Guide

The MTS TestSuite TW Elite Test Design Guide contains the information you need to begin customizing templates with the TW Elite (TWE) application. It includes the fundamental concepts of using the TWE application with MTS control software to create and run tests.

This guide does not explain every TWE application feature. Its goal is to introduce the most important features of the application in the context of customizing tests.

Summary

Introduction: Provides an overview of the TWE interface. In this section, you will open the example test included with the TWE application. The example test was created to run in simulation and includes test run data. This section describes the basic parts of the interface with the example test loaded.

Examine the Example Test: Examines the example test supplied with the system in detail. Understanding the example test reveals application capabilities and design principles you can apply to your own tests.

Design Guidelines: Provides design guidelines for TWE tests in general.

Modify the Example Test: Provides a tutorial for how to modify the example test with typical enhancements using the design guidelines, tips, and best practices.

Working with MTS FlexTest Resources: Provides information for mapping test resources to MTS FlexTest controller resources.

Considerations for Servohydraulic Systems: Provides information for using TWE with MTS FlexTest controllers for use in servohydraulic test systems.

MTS TWE for TestWorks 4 Users: Provides information to help users of MTS TestWorks 4 transition to TWE.

Information pertaining to MTS TW Express

MTS offers a companion application to TW Elite named TW Express (TWX). TWX cannot be used to create or modify tests; it can only run existing tests. In cases where this manual refers to functionality shared by both applications (such as running tests), the term "TW application" is used.

Information pertaining to MTS Insight and MTS FlexTest controllers

The TWE application can be used with MTS Insight controllers on electromechanical systems and with MTS FlexTest controllers on servohydraulic systems. The information in Examine the Example Test (p. 25) and Modify the Example Test (p. 81) is based on the example test supplied with the system which runs on the MTS Insight controller in simulation. Information pertaining to systems used with MTS FlexTest controllers is provided in Working with MTS FlexTest Resources (p. 95).

For More Information

Examine the Example Test (p. 25)

Modify the Example Test (p. 81)

Working with MTS FlexTest Resources (p. 95)

16 | MTS TestSuite

Introduction

Start TWE and Open the Example Test

Install TWE in simulation

Installation of TWE consists of running a self-extracting executable file. When running the MTS TestSuite InstallShield wizard, ensure you select “Insight/Criterion Simulation” when choosing the controller type.

Note:

The following startup procedure is for electromechanical systems. For servohydraulic systems, see

TWE Startup (p. 109).

Open the Example MTS EM Tension (Simplified) Test

1. Start the TWE application.

TW Elite Icon

Double-click the TWE icon on your desktop, or click Start > Programs > MTS TestSuite > TW Elite. The application opens and connects to the simulated MTS Insight controller (the MTS Insight icon appears on the taskbar).

Note:

The example test is in Project 1, which is the default project. If Project 1 is not selected as the default project, select Preferences > Configuration > Project > Project 1, right-click the mouse, and then select Set as System Default Project.

2.The application automatically opens to the Select tab. In the Tests directory, open the Example MTS EM Tension (Simplified) Test.

Note:

As a test designer, you typically log on to the TWE application as an Engineer or Administrator. When you open a test, the main window displays the workflow. If you open a test while logged on to TWE as an Operator, or when you open a test with the TW Express (TWX_ application, the workflow is hidden, and the main window shows the test inputs on the Monitor tab.

For More Information

TWE Startup (p. 109)

TWE Main Window

When you open a test, the application shows the workflow in the Define tab. Review the basic features in the TWE application as shown in the following figures and tables.

MTS TestSuite | 17

Introduction

TWE Application Main Window

TWE Main Window Description

Number Item

Description

1Menu bar and Provides menus and quick-access icons that allow you to perform tasks Quick Access such as opening tests, opening tests from templates, and saving tests

panel

as templates.

2Control panel Allows you to resolve interlocks; display fault status; view the direction

in which the crosshead is moving; position the crosshead; and start, stop, and hold the test.

Note: When control is provided by a handset, the crosshead controls will be locked and overlaid by the handset exclusive control icon:

3Status panel Shows test run information, including name, status, and running time.

This panel includes a control that allows you to terminate the current test run.

18 | MTS TestSuite

		Introduction
Number	Item	Description
4	Toolbox panel (not	The contents of the Toolbox panel change depending on the subtab
	shown)	selected in the Define tab:
		• When you select the Procedure subtab, the Toolbox panel contains
		components that pertain to test activities such as commands, data
		acquisition, test flow control, and program actions.
		• When you select the Test-Run Display subtab, the Toolbox panel
		contains components that pertain to the display of test data, such as
		cycle, variable, and signal views.

5Outline button The Outline button displays a hierarchical view of the test in the center

		panel when selected.
6	Workflow	Provides a work area to edit tests. You drag test activities from the

toolbox to the workflow to edit tests. The workflow contains three sections: Set Up, Run, and Finish.

• Use the Set Up section for activities that you want to perform before you start test runs, such as configuring the load train (setting up fixtures, etc.) and entering a test name. The Set Up section runs only once when you start a test, that is, before the first test run in the test.

• Use the Run section for applying forces to the specimen while performing test runs. The Run repeats for all test runs in the test, and by default shows the Review tab after every test run.

If you are using a multi-head frame and template, your workarea will show a Multi-Head Run section instead of a Run section. For more information about the Multi-Head Run section, see About the Multi-Head Run Section (p. 21).

• Use the Finish section for operations such as printing reports, exporting files, saving test data, and archiving. The Finish section runs when the number of test runs set for the test is complete, or when the operator clicks the Run Finish Section button on the Review tab.

Note:

The workflow includes Pan and Zoom features to help you view complex test procedures.

7Properties panel Allows you to define or change the information, characteristics, and

appearance of the selected procedure activities and runtime display components. For example, you can use the Properties panel to change the amplitude of a cycle command test activity in a procedure, or the Y-axis signal selection on a signal scope in a test-run display.

MTS TestSuite | 19

Introduction

Main Window Toolbar

TWE Application Main Toolbar

Application Toolbar Description

Number Item

Description

1Controller panel Allows you to reset interlocks.

2	Status panel	Shows fault status information. This indicator is primarily for diagnosing
		system errors with MTS service personnel.

3Direction panel Indicates when the crosshead/actuator is moving and in what physical

		direction. This relates to physical motion, regardless of whether feedback
		is increasing or decreasing.
4	Crosshead	Contains controls that allow you to move the crosshead up and down
	Controls panel	for specimen installation, and for returning the crosshead to the zero or
		a preset location.

5Test Controls Contains controls to run, hold, and stop the test run. panel

6Status panel Shows test run information, including name, status, and running time.

It includes a Cancel Test Run button you can use to terminate the current test run. When the test is stopped, pressing this button terminates the current test run. Pressing the Run button starts a new test run.

Status Panel with Cancel Test Run Button

20 | MTS TestSuite

Introduction

About the Multi-Head Run Section

Note:

The Multi-Head option is a separately licensed feature.

Note:

Prerequisite: Only analog data is collected from the multiple active load cells in a multi-head frame. You must have National Instruments Data Acquisition (Ni-DAQ) hardware and software or an extensometer installed which will convert the analog data to digital signals.

Multi-head frames can contain up to five active load cells which allow the simultaneous collection of test-runs for multiple specimens. By default, the test run collects the results for all specimens within one file. You can create a separate test-run file for each of the specimens by using the appropriate multi-head template which contains the Multi-Head Run section in the test procedure work area. This section is similar to the Run section found in templates for single head frames which contains activities for applying forces to the specimen while performing test runs. Unlike the Run section, the Multi-Head Run section contains a Properties Panel where you can input configuration data. The Multi-Head Run is only run once. Data is collected simultaneously from the Ni-DAQ analog signals. After the test is completed, the data is split into multiple tests runs. At the end of the test, a number of test runs will be created and populated with the collected data. The new test runs appear post-test as if they were individually collected.

At the end of the multi-head test, the array data is split into multiple test-run files by moving the collected data into the normal force, extension, and optional strain variables.

To create a new multi-head template, you must start with an existing test or template that contains the Multi-Head Run section. To save a test as a template, you must be assigned the Administrator or Engineer privilege.

MTS TestSuite | 21

Introduction

Multi-Head Run Section Properties

	Multi-Head Run Section Properties
Item	Description

Number of Active Load Cells Specify how many test-runs should be created. For example, if you are testing four specimens, enter 4. When the test run has ended, four test run files will be created. Default: 5

Click the Automatically Map Variables checkbox to have the system map variables, or click the Configure button to open the Map Variables window and manually map variables.

22 | MTS TestSuite

	Introduction
Item	Description
	Note:
	If you select the Automatically Map option and then change the
	Number of Active Load Cells value, some variables will be
	created or removed.
	If you map variables manually, and then select Auto Map
	Variables, your manually created variables will be overwritten
	by the automatically-generated variables.
Test Run Variables	Specify variables that are not in the Common category. For example,
	if Number of Active Load Cells is 5 and the Width variable is added
	to this list, the other five variables should be mapped to the Width
	variable (such as Width1, Width2… Width5). At the end of the test, the
	variable values from Width1, Width2, and so on, must be moved to the
	Width variable in the appropriate test runs. Click the green plus sign to
	add a variable. To delete a variable, select a variable in the list and click
	the red minus sign.
	Click the Configure button to open the Map Variables window.
Load Array Variable	Specify the name of the array variable that is used to gather data from
	the Force (Load) channel. Map it to the other array variables as
	described above in the Test Run Variables description. At the end of
	the test, the variable values from mapped arrays must be moved to the
	selected Load Array variable in the appropriate test runs. Click the
	Configure button to open the Map Variables window.
Enable Extension Channels	Select to map additional array variables to the other array variables.
	You can also move data from mapped variables to the selected array
	variable at the end of the test. Click the Configure button to open the
	Map Variables window.
Trim Data	Select to have the trimming process performed after the data has been
	split into test-run files. The trimming process will keep the point identified
	by the variable. In other words, the data will be trimmed at the variable
	index plus one. If the variable is invalid, no truncation will take place
	and a message will be logged. Default for Truncate after data point:
	Break

MTS TestSuite | 23

Examine the Example Test

Topics:
•	About this Chapter.............................................................................................................................	26
•	Design Flow.......................................................................................................................................	26
•	Define Tab.........................................................................................................................................	27
•	Monitor Tab........................................................................................................................................	49
•	Review Tab Layout............................................................................................................................	51
•	Runtime Values Tab..........................................................................................................................	57

MTS TestSuite | 25

Examine the Example Test

About this Chapter

This chapter provides a detailed review of the example test provided with the TWE application.

You will examine the test’s workflow, test activities, use of variables, and so on. Understanding how the example test was created with the TWE application and how the test appears in the interface will help you understand how to create tests of your own.

Modify the Example Test (p. 81) provides a tutorial for modifying the example test for a different scenario.

For More Information

Start TWE and Open the Example Test (p. 17)

Modify the Example Test (p. 81)

Design Flow

The flow for designing tests with TWE is defined by the tabs shown on the main display after you open a test:

•Select tab (or the initial open test/template window)

•Define tab

•Monitor tab

•Review tab

Main Tabs in TWE

Select tab

Use the initial open test/template window or the Select tab to choose an existing test or template to modify.

Define tab

Use the Define tab to modify the selected test by modifying the workflow, editing variables, applying functions, and so on.

26 | MTS TestSuite

Examine the Example Test

Note:

When operators use TWX, tests typically open to the Monitor tab so operators can review pretest variables before performing test runs. However, if the selected test has validation errors, the test opens to the Define tab so operators can use the Resource subtab to resolve resource conflicts.

Monitor tab

Use the Monitor tab to review pretest variables (inputs that typically apply to all of the test runs in the test) shown to the operator. You may create additional pretest variables by editing variable properties in the

Variables subtab of the Define tab.

Review tab

Use the Review tab to view test results, customize table and chart content, define markers, and customize report templates with the Reporter Add-In for Microsoft Excel.

Runtime Values tab

Use the Runtime Values tab to view current variable values and activity configuration values.

Define Tab

You perform most test design tasks on the Define tab, which includes the following subtabs:

•FitProcedure

•Test-Run Display

•Variables

•Report Templates

•Functions

•Resources

•Test Definition

Outline View in the Procedure Subtab

When a test is opened in TWE, the Define tab and Procedure subtab are displayed by default. You can select Outline view by clicking the Outline button. The Outline view shows the procedure as a hierarchy.

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Examine the Example Test

	Outline View and the Find Feature
Item	Description
1	Outline button

Tip

The Find feature is particularly useful for locating activities nested within other activities. For instance, to locate the Go To + DAQ + Detection command activity in the example test, enter Go To and press return. The outline hierarchy expands to show the Go To + DAQ + Detection activity, and the activity is highlighted in the workflow.

Workflow in the Procedure Subtab

The center of the main window shows the workflow. The workflow consists of a sequence of connected activities divided into test sections; it is a graphical representation of the test.

Each section performs a specific function within the test.

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Workflow of the Example Test

All TW tests include the following sections:

•Set Up

•Run

•Finish

Set Up Section

The Set Up section runs only once before the first test run. Since there are no activities in the Set Up section of the example test, the Set Up section is skipped and the Run section begins immediately.

You typically use this section for activities that you want to perform before you start test runs, such as configuring the load train (setting up fixtures, and so forth) and entering a test name.

For more information about activities, see Modify the Example Test (p. 81).

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Set Up Section of the Example Test.

For More Information

Modify the Example Test (p. 81)

Run Section

The Run section performs a test run when the operator clicks the Run button. After each test run, the Review tab appears, which shows test data in tables and charts.

The Run section of the example test has been performed three times, so the Review tab includes data from three test runs.

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