Node-RED features in its drag-and-drop programming functionality. Using the browser-based programming tool, users can adopt themselves in any environment. Advantech Node-RED Fieldbus gateways EKI-1242NR and EKI-1242INR serve as multi-protocol converters. The protocols under conversion are all based on the Node-RED programming. It allows control centers (in any environment) to connect to legacy devices for data acquisition.