DOC-0017-07-EN: AC20 Series - EtherCAT Option  
24 (58)  DOC-0017-07-EN-B  04.04.2023  
9.3  Programming using Codesys platform 
The example uses Codesys V3.5 running on a PC as a soft PLC. A trial version is available to download on 
the  Codesys website. Prior knowledge of Codesys software is assumed. 
 
EtherCAT ESI File Installation 
 
•  Download the AC20 EtherCAT option comms ESI file from the Parker website. 
•  Start Codesys and from menu select Tools > Device Repository 
•  From Device Repository tab, click on Install, Select AC20 XML device description file then click 
Add to install device into the Codesys catalog.