4. Appendix
4-13
TI 30A10A05-01E
Dec. 26, 2016-00
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CENTUM VP
For detecting failures and acknowledging recovery of alarms of the ring network, the following
components are required.
•
HIS × 1 unit
For detecting failures/acknowledging recovery of alarms. An HIS in the existing system can
be utilized.
•
FCS × 1 unit
For detecting failures/acknowledging recovery of alarms. An FCS in the existing system can
be utilized. A digital input module shown below must be mounted on the FCS.
•
Digital input module
A digital input module is required to receive an output from the FAULT terminal of the
network switch. An open channel per ring is needed. In case a ring in bus 1 and another
ring in bus 2 exist, total of 2 open channels are required. An existing DI module available
with required number of open channels can be utilized.
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Network Management System
Introducing a network management system (NMS) is strongly recommended for structuring the
communication network in ring topology. In this case, dedicated IT skills for network engineering
is required. For the NMS, a computer independent from HIS and ENG has to be prepared. An
Ethernet port for a ring is required on this computer. (Two open ports for bus 1 and bus 2 must be
available.)
Summary of Contents for Vnet/IP
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