Quickstart Guide
ABB PLC and drives integration using Modbus RTU
CODESYS
Double‐click "AC500" from the Device tree in the Control Builder Plus project to open CODESYS.
CODESYS tabs
In CODESYS there are four different tabs for programming, configuration, etc.
1. POUs (Program Organization Units): This tab contains your Functions, Function blocks and Programs.
2. Data types: In this tab, along with the standard data types you can define your own user‐specific data
types.
3. Visualizations: In this tab you can create your own or use predefined visualizations to display your project
variables graphically. In Online mode, these can then change their form, color, text, position, output, etc.
in response to specified variable values.
4. Resources: In this tab you can configure and organize your project. It includes Global variables, Library
manager, etc.
Modbus RTU
‐ 25 ‐
PLC and drives integration