TwinCAT 3 Function Block User Guide

Introduction

Welcome to the user guide for the TwinCAT 3 Function Blocks. This guide provides an overview of the available function blocks and their usage.

Function Blocks Overview

FB_Testsuites

• Manages multiple test suites.
• Adds, executes, and manages test suites.
• Provides methods for starting and stopping test suites.

FB_Testsuite

• Represents a single test suite.
• Defines test cases and assertions.
• Handles file operations and assertion checks.

FB_File

• Provides file manipulation functionalities.
• Creates, deletes, appends, and loads files.

FB_ListSTRING

• Represents a list of strings.
• Adds, inserts, retrieves, and clears string items.

FB_StringBuilder

• Builds and manipulates strings efficiently.
• Appends values and converts to string.

FB_Assert

• Provides assertion functionalities for testing.
• Verifies conditions and checks for equality.

Usage

1. Instantiate the desired function block.
2. Set properties and configure methods.
3. Execute methods to perform operations.
4. Check results using assertions.

Example

Creating a Test Suite

// Instantiate FB_Testsuite
fbTestsuite: FB_Testsuite;

// Define test cases
fbTestsuite.M_Testcase("TestName", T#1S, "", "", 1);