Automation and IIoT
What is edge computing in manufacturing?
Edge computing processes machine data close to the source on gateways and industrial PCs. Protocol conversion, buffering, local analytics and security for factories.
Quick answer
Edge computing in manufacturing means processing machine data close to where it is produced, on gateways or industrial PCs on the shop floor, instead of sending everything to a central server or the cloud. Edge devices convert protocols, filter and buffer data, run local analytics and keep working when the network is down.
Updated 30 October 2026. Written by the Ajinkya Technologies engineering team, reviewed by Amey Kadle.
Edge computing explained
A typical edge gateway connects to PLCs, CNCs, sensors and meters through their native protocols, such as Modbus, PROFINET, EtherNet/IP or OPC UA, and publishes clean, timestamped data upstream, often over MQTT. It can calculate counts, states and OEE locally, compress high frequency vibration data into features, and apply rules that need a fast response.
Buffering is one of the most practical benefits. With store and forward, the gateway keeps every message while the link to the data hub is down and replays them in order when it returns, so production counts and quality records are not lost and machines never wait on the network.
Edge devices also form part of the OT security design. They can sit in a demilitarised zone between the control network and the business network, so higher level systems never connect directly to PLCs. Fleet management matters once there are many gateways: configuration, updates and monitoring should be central and controlled.
Key concepts
- Processing close to the machines
- Protocol conversion to OPC UA or MQTT
- Store and forward buffering
- Local analytics and fast rules
- A security boundary between OT and IT
Questions
What is an edge gateway?
An industrial device that connects to machines through their native protocols and passes clean, contextualised data to MES, a broker or the cloud, often with local processing and buffering.
What is the difference between edge and cloud computing?
Edge computing processes data on site near the machines for speed, resilience and security. Cloud computing processes data in remote data centres for scale and wide access. Most architectures use both.
What happens to data when the network fails?
With store and forward, the edge gateway buffers data locally and sends it in order once the network is back, so nothing is lost.
References
How we help with edge computing
We deploy edge gateways that read machines read only, publish to an MQTT data hub, and buffer through network outages, as shown in our integration demo.
Interactive 3D demo with simulated data: cut the network and watch the edge store and replay.
Related terms
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