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FIREWALL
Next-Generation Industrial Firewalls
Level 4 Log Centre SIEM
IT Network Manager Cyber Security
Software
Firewall
Network
Network Monitoring
Monitoring
Server
Level 3 Server
Operations
SWITCH SWITCH
SCADA, HMI &
Workstations
Plant #1 Plant #2
Level 2
Process Network
Industrial Industrial
Firewall Firewall
Level 1
SWITCH SWITCH SWITCH
Contol Network
PLC RTU PLC RTU PLC RTU
Level 0
Field I/O
20 Industrial Communications Industrial Communications 21
