DelEdge is an Industrial IoT Gateway from Gadgeon. DelEdge is a Linux based field gateway software that runs on any industrial grade off-the-shelf hardware which can be deployed on premise. DelEdge is a field Gateway located on the factory floor which connects existing PLC, SCADA system and legacy equipment for data collection and aggregation. It supports all major industrial PLCs from Siemens, Mitsubishi, Bachmann, OMRON, etc. and harmonizes different protocols like Modbus, BACNet, OPC-UA, PROFINET, HART-IP before sending data to the Cloud database. The DelEdge gateway is a must-have equipment to address round trip network latency from cloud server and to realize near real-time experience for monitoring via local HMI. Docker based implementation facilitates easy upgrades and modularization of protocols and functionality.