Your First CODESYS Program :

Preparation Before you get started Data security: In order to minimize the risk of data security breaches, we recommend the following organizational and technical measures: Avoid access to the PLC and

Creating the Project and Selecting the PLC Device Click File → New Project . In the Templates view, select the Standard Project template. Specify a name and a storage location for the project and clic

Establish the Connection to the PLC Starting the gateway server and PLC Checking the options for accessing the controller Controllers must never under any circumstances be accessible from the Internet

Application on the PLC Downloading the application to the PLC Requirement: The application has been compiled without errors. For more information, see: Debugging the application program Click Online →

Creating and Configuring a Project What is a project? . What is a project? A project contains the objects which are necessary to create a controller program ("application"): Pure POUs Examples: progra

Creating Standard Projects Click File → New Project , and then the Projects → Standard Project template. Specify a name (example: myProject ) and a location in the file system. The Standard Project di

Data Type: __UXINT, __XINT, __XWORD Variables with these special data types are converted to a platform-compliant data type, depending on the target system. CODESYS supports systems with address regis

User-defined data type: TYPE :

Data Types In the programming, a variable is identified by its name and memory address in the target system. Variable names are identifiers under which the allocated memory is addressed. The size of t