Skip to content
Industrial Wireless I/O

Modbus RTU, MQTT, and OPC UA in Telemetry

Modbus RTU, MQTT, and OPC UA in Telemetry

Section titled “Modbus RTU, MQTT, and OPC UA in Telemetry”

These protocols are often discussed as if they are direct substitutes. In practice, they usually serve different roles in the stack. The correct decision is less about ideology and more about where data originates, where it is reshaped, and what the upstream platform expects.

A useful framing

Section titled “A useful framing”
  • Modbus RTU often lives close to field devices and legacy equipment
  • MQTT is often useful for telemetry transport and event-oriented movement
  • OPC UA is often useful where richer contextual integration or upstream interoperability matters

Compare next

Section titled “Compare next”
Telemetry protocol fit Step back and decide which layer of the system should own translation and data shaping.
Industrial telemetry gateways Protocol debates usually become easier once the gateway role is defined.