Protocol Bridge Sprint (Modbus ↔ MQTT / HTTP)

Protocol Bridge Sprint (Modbus ↔ MQTT / HTTP)

Bridge Modbus field devices to cloud-friendly MQTT or HTTP with a clean data mapping, predictable behavior, and testable gateway logic.

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Description

This sprint is ideal for industrial telemetry products, IoT startups, and system integrators who need to reliably expose Modbus RTU/TCP data to modern IT systems without fragile glue code.

If you’re dealing with:

  • Messy Modbus register mappings

  • Unclear JSON payload structures

  • Unpredictable gateway behavior on errors

  • Integration pain between OT and cloud systems

This sprint delivers a clean, documented, and testable protocol bridge.

What You Get

✔ Protocol mapping specification
Clear mapping between Modbus registers ↔ MQTT topics / HTTP payloads, including data types and units.

✔ Gateway prototype or firmware component
A working bridge component demonstrating real read/write behavior.

✔ Error handling & retry rules
Defined behavior for timeouts, CRC errors, connection loss, and retries.

✔ Test vectors & sample payloads
Concrete examples to validate correctness and enable downstream integration.

✔ Integration guide
Documentation explaining how data flows, how errors are handled, and how to extend the mapping.

Scope (What’s Included)

  • Modbus RTU or Modbus TCP

  • MQTT or HTTP(S) transport

  • Data normalization and timestamping strategy

  • Basic offline buffering approach

PLC programming, cloud dashboards, or large multi-device gateways are handled as follow-on work.

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