PLC Programming With Structures (UDT / DUT) In Codesys

This lesson covers the following:

• Introductions to what a Structure is

• What a structure means to a Project / PLC

This lesson covers the following:

• How to create a Structure (DUT)

This lesson covers the following:

• How to use Structures in a nested manner

• How to declare a Structure within a Structure

This lesson covers the following:

• Reading Structured Elements

• Writing Structured Elements

This lesson covers the following:

• How to pass entire contents of a Structure as a single variable

• Passing via reference using In_Out interfaces

This lesson covers the following:

• Why In_Out is so important when using Structures

• Why In_Out speeds up execution time of the PLC

This lesson covers the following:

• What can change when modifying structures online

• What to be careful of when modifying structures online

This lesson covers the following:

• Individual GVL's Per asset in a project

• Segregating Structured Data From Bespoke Project Data

This lesson covers the following:

• How HMI / SCADA Systems can benefit from Structures in PLCs

This lesson covers the following:

• Creating a "Faceplate" in Codesys and mapping structured data to it

This lesson covers the following:

• An introduction to this section

This lesson covers the following:

• Managing alarms from a structured point of view

• Realizing how to pass large data for alarms around the project

• Indexing referenced structures for alarm management

This lesson covers the following:

• Addressing Structures via Pointers

• Testing / Evaluating the type of structure to change a Function Blocks behaviour

This lesson covers the following:

• Packing unstructured data into temporary structures so that function blocks that require a dedicated structure can still be used on the fly

This lesson covers the following:

• An expansion to the previous lesson

• How to declare structures as an array

• Indexing structured array to loop functions using the structured data

This lesson covers the following:

• Commenting Tips

• Naming Convention Tips

This lesson covers the following:

• Introduction to the project example

This lesson covers the following:

• Building of our Process Structures

• Layout in a project of example structures

Please note: The downloadable resource is available in the first lesson of this section

This lesson covers the following:

• Managing IO Inputs and packing into structured process data

• Introduction to the simulation system

Please note: The downloadable resource is available in the first lesson of this section

This lesson covers the following:

• Examples of "Managers" - Function Blocks that work exclusively with structured data, encompassing all aspects from Scaling to Alarm Management

• Usage Examples

Please note: The downloadable resource is available in the first lesson of this section

This lesson covers the following:

• Walkthrough of Alarm System in a real project example

Please note: The downloadable resource is available in the first lesson of this section

This lesson covers the following:

• Walkthrough of Visualisation system

Please note: The downloadable resource is available in the first lesson of this section

Please note 2: This lecture is best completed by going through the resource file attached to the first lesson of this section alongside the lecture

This lesson covers the following:

• Output Mapping - Passing data from our internal structures to the physical IO Outputs

Please note: The downloadable resource is available in the first lesson of this section