This page turns the SCADA and substation gateway into a concrete design checklist, showing where it sits between IEDs and control centres, how to choose architectures, protocols, security and IC families, and how real projects upgrade legacy RTUs and feeder networks without. This page turns the SCADA and substation gateway into a concrete design checklist, showing where it sits between IEDs and control centres, how to choose architectures, protocols, security and IC families, and how real projects upgrade legacy RTUs and feeder networks without. This page turns the SCADA and substation gateway into a concrete design checklist, showing where it sits between IEDs and control centres, how to choose architectures, protocols, security and IC families, and how real projects upgrade legacy RTUs and feeder networks without losing reliability or. The applications and use cases were documented in EPRI report Applications of the Local Distributed Energy Resource (DER) Gateway: Low Cost, Secure DER Network Gateways for Integration of Smart Inverters1. The detailed requirements for these applications were documented in EPRI report Distributed. The application of the gateway enables the data of the perception layer of the power Internet of things to be transmitted in the heterogeneous network, which significantly improves the automatic control level of the distribution net-work. Therefore, the development of an IoT intelligent gateway has. The REC615 and RER615 are grid automation protection and control relays for remote control and monitoring, protection, fault indication, power quality analysis and automation in medium-voltage secondary distribution systems. Operating system selection: network communication and other functions. When choosing an operating and supported development tools.