3. Vnet/IP Network Configuration without using Information Network
3-8
TI 30A10A05-01E
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Operating a system with split domains
The following figure shows an example of a connection between domains that are split according
to the operation scope for a system integrated with CENTUM. In this example, CENTUM
operation scope A is split into domains 2 and 3. Operation scope B is located in independent
domains, while domain 1 monitors and controls the entire system. By connecting domains
as shown in the following figure, domain 1 can centrally monitor the entire system, while the
individual operation scopes can operate without handling system alarms and operation logs from
other operation scopes.
030303E.ai
Vnet/IP Domain 1
(All System Management)
Vnet/IP Domain 2
(Control System A)
Vnet/IP Domain 4
(Control System B)
Vnet/IP Domain 3
(Control System A)
L3SW
Bridge
Bi-directional
Hierarchical
Hierarchical
Hierarchical
Bridge
Port1
Port2
Port3
Port4
Figure Example of a connection between Vnet/IP domains
You can set the following inter-domain connection methods from the CENTUM engineering
function properties:
• Bi-directional connection: Both domains can receive messages from each other
• Hierarchical connection: Only the upper domain can receive messages
• Bridge connection: Both domains cannot receive messages
If you are downloading recipes from HIS to FCS through domains, set the “FCS TCP” to “ON” in
the domain properties of the CENTUM engineering function.
Aug.19,2011-00
Summary of Contents for Vnet/IP
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