7. System Architecture Diagram

+------------------------------+
|           ERP Layer          |
|       Microsoft D365         |
+---------------▲--------------+
                |
                |
+---------------▼--------------+
|           MES Layer          |
|          OVER.MES            |
+---------------▲--------------+
                |
                | OPC UA
                |
+---------------▼--------------+
|        Automation Layer      |
|       Ignition OPC UA        |
+---------------▲--------------+
                |
                |
+---------------▼--------------+
|           PLC Layer          |
|  Batching / Weighing / Lines |
+------------------------------+