October 2017
Intermediate to advanced
456 pages
9h 56m
English
Content preview from Industrial Cybersecurity
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Level 2 – Area supervisory control
Level 2 represents the applications and functions associated with the cell/area zone runtime supervision and operation. Some examples of level 2 applications and systems include:
- Operator interfaces or HMIs
- Alarms or alerting systems
- Control room workstations
Applications and systems in level 2 communicate with controllers in level 1 and interface or share data with the site level (level 3) or enterprise (level 4/5) systems and applications through the IDMZ.
The applications at level 2 are more likely to communicate with standard Ethernet and IP networking protocols instead of proprietary protocols and are typically connected internally and directly to the cell/area network they perform supervisory functions ...
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