An implementation of field overlay architecture on controllers

Efforts to effectively utilize field data in a wider area continue in the field of manufacturing systems today. As part of these efforts, we focus on a computing environment for field devices, in which functionality can be flexibly expanded to effectively utilize data. However, there are several issues to be solved when new functionality is added to programs on various devices and multiple users operate the system concurrently. To solve these issues, we introduce a computing environment for field devices called field overlay architecture (FOA) and describe an implementation of the FOA on controllers.