Currently testing a new connectivity for MonsterMQ.com – bringing WinCC Open Architecture tags into the broker via the WinCC OA GraphQL Server!

It was great to see that with 5,000,000 tags (datapoint elements in OA) and a 40 kHz simulation (40,000 value changes per second!), a single WinCC OA GraphQL Server can easily handle that load via GraphQL Subscriptions — even on commodity hardware! 💪

🤨 Why not publish the tags from WinCC OA with its MQTT capabilities? Because the MQTT protocol doesn’t support bulk messages, it’s not efficient for transferring a large number of topic value changes.

💡And I am using WinCC OA’s great continuous SQL queries, which makes it possible to subscribe to 5 Millions tags with just a single SQL query.

MonsterMQ.com will soon get a bridge to WinCC OA 🥳 Stay tuned. And WinCC Unified will be next 😀