July 2019
Intermediate to advanced
420 pages
8h 47m
English
Figure 2.1. Typical ICS architecture. For a color version of this figure, see www.iste.co.uk/flaus/cybersecurity.zip
The typical architecture (Figure 2.1) of an industrial control system includes several types of networks. We can distinguish between
A number of models have been proposed to structure this architecture and organize it hierarchically. These models simplify reality a little and introduce a level of decomposition that is not always so clear, but they are useful and serve as a basis for the breakdown into zones.
Figure 2.2. (a) Purdue and (b) ISA85 models. For a color version of this figure, see www.iste.co.uk/flaus/cybersecurity.zip
The first of these models is Purdue’s model (Williams 1994). It introduces five levels: ...