REQ-IFC-001
===========

The firmware shall provide RS-485 communication using Modbus RTU for operational data access.

Requirement Impact
------------------

.. image:: /_static/impact/REQ-IFC-001_07d30546-53c1-47d3-a76d-6fb63ea454a4_impact.svg
   :alt: Requirement impact for REQ-IFC-001
   :class: dblclick-open-image

Requirement Classification
--------------------------

.. list-table::
   :header-rows: 1
   :widths: 30 70

   * - Field
     - Value
   * - Priority
     - high
   * - Category
     - functional

Acceptance Criteria
-------------------

With configured bus settings a compliant Modbus RTU master shall complete 100 consecutive read requests without protocol error.

Attachment
----------

- :doc:`Initial Technical Brief v0.2 </generated/attachments/initial-technical-brief-v0-2-a4f82d32-3b49-44f8-85f4-73fceed859f0>`