UTC-008_Modbus_Server_Request_Validation
========================================

Validate ao_modbus_server request decoding and local validation for read and write operations.

Execution
---------

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   :header-rows: 1
   :widths: 30 70

   * - Field
     - Value
   * - Status
     - pass
   * - Last Run At
     - 2026-02-28T18:45:00Z
   * - Last Runner
     - Dummy_Unit_Run
   * - Result Summary
     - pass

Preconditions
-------------

Modbus server initialized with register map and configuration bounds.

Procedure
---------

1) Inject valid read request. 2) Inject valid write request. 3) Inject invalid write request out of bounds. 4) Dispatch and inspect responses.

Expected Result
---------------

Valid read and write requests succeed while invalid writes are rejected with context preserved

Traceability
------------

.. list-table::
   :header-rows: 1

   * - Element Type
     - Referenced Elements
   * - SW Units
     -
       * :doc:`ao_modbus_server </generated/detailed_design/units/ao-modbus-server-c4a17ec8-b518-44a1-982f-7d2f82fa4b44>`
   * - SW State Machines
     -
       * ao_modbus_server_state
   * - Evidence
     - n/a