ITER Central Interlock System:
Central Interlock Networks
Y. LIU
Dec. 2014
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
Table of Topics
The demand for ITER CIN
The CIN Characteristics
The CIN Architecture
The CIN Infrastructure
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
The Demands for ITER CIN
The situations:
Large area to cover, large scale to connect in:
About 40 PIS from 23 PBS involve in ITER interlock
system,
The PIS located in 13 different buildings.
Redundant CIS requires redundant networks to
enhance the network availability.
Large amount data requires high performance
networks.
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
CIN Characters
A total redundant ITER Interlock Network covers ITER
buildings to connect Plant interlock systems.
Conventional TCP/IP networks is base on Gigabit
Ethernet technology: Gigabit switch, fiber optic cables
start and end at central/local interlock cubicles.
Network segment: two isolated sub-networks
• CIN-A: Connect operator station, engineer station and CIS
modules (PLC, Fast controller, servers…) for administrative
tasks (monitoring, archiving, engineering configuration…)
• CIN-P: Connect CIS modules (PLC, fast controller, supervisor
module) and Plant Interlock System for process control,
operations, timing propagation, diagnostics
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
CIN Characters
VLAN technology used to segregate data to increase
the CIN-P performance:
– VLAN for interlock slow architectures (PLCs)
– VLAN for fast controllers
– VLAN for hardwired architecture diagnostics data
Separated paths for backbone fiber cables.
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
CIN Architecture
MCR
Operation
Station
Engineer
Station
CIN-A
VLAN-1
MSR
Engineering
Server
Supervision
Module
VLAN-4
Archiving
Server
VLAN-3
VLAN-2
CODAC
Interface
CIN-P
SPM
CPM
PPM
DLIBs
Buildings
PIS Slow
PIS Fast
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
3. CIN Infrastructure – Principals
MCR
BCR
CIN Cubicle:
Network cubicles have interlock network
switches installed side and located in
MSR
Synchronization
BSR
rooms called CODAC hutch.
CNP
-
CIN Cubicle
In CODAC Hutch
-
CNP is a passive wall mounted
patch panel which is the physical
termination
point
Interlock
Networks.
Network panels are installed at
strategic locations close to the PIS
cubicles
CNP
PIS slow
PIS Fast
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
3. CIN Infrastructure – The Network coverage
CIN-P star point
CIN Cubicle
23
Network Panel (CNP) 99
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
Conclusions
CIN uses following measures to enhance the Network
availability and performance:
 Network redundancy
 Gigabit technology
 All kinds of Segregation measures:
• Network Segregation: CIN-A, CIN-P
• Cable Segregation
• Data Segregation by VLAN technology.
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France
ITER Central Interlock Networks
Thank you...
PLC Based Interlock systems Workshop 4-5 December 2014 - ITER Organization Headquarters - St Paul-lez-Durance-France