Issue
When reading a string from the logic and displaying it in EcoStruxure Automation Expert, sometimes the user needs to change it from the HMI, it is not natively possible using drag & drop whilst creating a CAT.
Resolution
This knowledge base will show how to customize and do the C# code to not only read the string from the input, but to allow you to change the string from the HMI and update the output.
Disclaimer
The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.