Protocols

MQTT / Sparkplug

MQTT is the broker transport. Sparkplug B is a specific payload and state model on top of it, common in unified-namespace designs. A server that only speaks MQTT does not automatically decode Sparkplug.

Open these 2 in the directory

• FieldWorks protocol adaptersOpen sourceWrites exposedRust MCP adapters with one tool surface. MQTT and OPC UA are implemented; Modbus, DNP3, and EtherNet/IP are stubs.
• IndustriConnect MQTT / Sparkplug MCPOpen sourceWrites gatedMQTT client that publishes, subscribes, and decodes Sparkplug B instead of handing the model raw bytes.