Purdue Model Network Diagram

These are key areas that need to be preserved to ensure the continuous flow of production and the safety of the workers operating the shop floor equipment.

Purdue model network diagram. As shown in the following figure purdue model was adopted from the purdue enterprise reference architecture pera model by isa 99 and used as a concept model for ics network segmentation. This time it wasn t it but the people in. The true story of network layering and the origin of the osi model despite the success of the internet in replacing all the previous attempts to build a global computer communication system some engineers haven t updated their thinking from old descriptions of networks. Secure architecture for industrial control systems sans edu graduate student research by luciana obregon october 15 2015.

The purdue model still serves the segmentation requirements for both wireless and wired networks and protects the operational technology ot network from unwarranted traffic and exploits. A link cannot contain any data value so a new record type needs to be created and links need. Industrial control systems ics have migrated from stand alone isolated systems to interconnected systems that leverage existing communication platforms and protocols to increase productivity reduce operational costs and further improve an organization s support model. The networks were safe on a purdue model network so there shouldn t be much of a problem.

For them it became a model for safety. This model describes various levels of applications and controls in a manufacturing enterprise. If a relationship includes descriptive attributes the transformation from an e r diagram to a data structure diagram is more complicated. Example network diagram using purdue model.

It is an industry adopted reference model that shows the interconnections and interdependencies of all the main components of a typical ics. When designing a network the purdue model allows us to control access to the scada controls. In general level 2 devices are able to set or change values on level 1 devices. 4 appendix d network model figure d 5 sample database corresponding to diagram of figure d 3b.

Instead they still cling to the outdated 7 layer reference model that was. Purdue reference model 95 provides a model for enterprise control which end users integrators and vendors can share in integrating applications at key layers in the enterprise. I ve used a diagram from wikipedia that just uses circles and arrows. Level 1 intelligent devices sensing and manipulating the physical processes.

College of engineering purdue university. The model is usually represented by a pyramid shape. Level 3 however is only able.