6. Implement and Test Diagnostic Elements

This system configuration implements the layered Model+View+Control+Diagnostics architecture for the drilling example.

• The devices in the system encapsulate the functionality of the corresponding layers of the architecture as shown in the following table.
  

• As in the VIEW device of the DRILL_VIEWL configuration, the MODEL device contains two instances of the specialized VIEW_PANEL resource type to provide the necessary layout of View elements for the drilling example.
• As in the DRILL_MVL configuration, the MODEL device contains the Model elements and the logic for their interactions, including the transfer of workpieces among the modeled physical elements.
• As in the DRILL_MVCL configuration, the CONTROL device contains the Controller elements, including the logic for sequencing and interlocking of operations among the modeled physical elements. In addition, HMI functions are moved to this device to facilitate partitioning in the Distribution step.
• The DIAGNOSTICS device implements the Diagnostic functions. Diagnostic functions are implemented in the MONITOR and CLAMP resources by instances of the MECH2_DIAGL, SOL_DIAGL and MECH1_DIAGL types, and diagnostic messages are logged in the LOG resource by an instance of the DIAG_LOG type.
• Inter-layer communication is implemented with the local multicast pattern.