Methodology for Plant System I&C specifications - Iter

IDM UID 

353AZY 

VERSION CREATED ON / VERSION / STATUS 

08 Feb 2011 / 3.3 / APPROVED 

EXTERNAL REFERENCE 

How To 

Methodology for Plant System I&C specifications 

This document completes the PCDH core document by focusing on methodology for plant 

system I&C technical specifications. It aims to give guidelines to issue the deliverables for 

the design phase as mentioned in PCDH. 

The CAD tools involved in the design and the links with the plant system configuration 

database are addressed and commented. Details on CAD tools and how to use them will be 

developed in a specific 

document. 

Approval Process 

Name Action Affiliation 

Author Journeaux J.- Y. 08-Feb-2011:signed IO/DG/DIP/CHD/CIT/CODAC 

CoAuthor 

Reviewers Klotz W.- D. 

Wallander A. 

21-Feb-2011:recommended 

08-Feb-2011:recommended 

Approver Bora D. 23-Feb-2011:approved IO/DG/DIP/CHD 

Document Security: level 1 (IO unclassified) 

RO: Journeaux Jean-Yves 

Read Access 

IO/DG/DIP/CHD/CIT 

IO/DG/DIP/CHD/CIT/CODAC 

AD: ITER, AD: External Collaborators, AD: Section - CODAC, project administrator, RO, LG: CODAC 

team 

PDF generated on 23-Feb-2011

Change Log 

Version Latest Status Date Description of Change 

v3.3 Approved 08 Feb 2011 Update after PCDH v6 external review 

v3.2 Signed 05 Jan 2011 John Poole review, version for PCDH v6 external review 

v3.1 Signed 03 Jan 2011 New version to be reviewed in scope of PCDH v6. 

if(typeof editorarray == 'object') 

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editorarray.push('ctl00_MasterPlaceHolder_DocumentView1_ctl01_ctl00_ctl00 

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v3.0 Signed 03 Jan 2011 New version to be reviewed in scope of PCDH v6. 

v2.0 Approved 28 Jan 2010 PCDH v5 review included 

v1.3 Signed 26 Jan 2010 Update after official review for PCDH v5 

v1.2 Signed 10 Dec 2009 Review of PCDH docs references 

v1.1 Signed 10 Dec 2009 IDM ref updated 

v1.0 In Work 10 Dec 2009 

PDF generated on 23-Feb-2011

Records of revisions 

Revision Date Description Modified Pages 

0 04/09/2009 First draft for PCDH v5 

1 10/09/2009 First CODAC review comments included 2 to 9 

2.1 21/09/2009 Second CODAC review comments included 2 to 14 

2.2 30/10/2009 IO review comments included 2 to 14 

2.3 25/01/2010 J Poole and IO review 2 to 14 

3.0 15/11/2010 New version for PCDH v6, maturity tables and FBS 

added. Other sections simplified, no change on inputs 

and deliverable lists and definition. 

3.1 17/12/2010 Intermediate version 

2 to 4 

3.2 05/01/2011 J Poole review All pages 

3.3 08/02/2011 Final version for PCDH v6.1 Cover page 

Methodology for plant system I&C specifications v3.3 Page 1 of 30

TABLE of CONTENTS 

1. INTRODUCTION .........................................................................................................................................4 

1.1. PCDH context ....................................................................................................................................4 

1.2. Document scope ...............................................................................................................................4 

1.3. Document identifiers.........................................................................................................................5 

1.4. Topics remaining to be addressed ..................................................................................................5 

1.5. Review, validation and thanks .........................................................................................................5 

1.6. Acronyms...........................................................................................................................................6 

1.7. Related documents ...........................................................................................................................6 

2. PLANT SYSTEM I&C TECH SPECS ..........................................................................................................7 

2.1. I&C technical specifications in general...........................................................................................7 

2.2. PCDH deliverables for plant system I&C technical specifications...............................................7 

2.3. Inputs for plant system I&C technical specifications ....................................................................9 

2.4. Review of PCDH deliverables for I&C specifications...................................................................10 

2.5. CAD tools involved in plant system I&C design activities ..........................................................11 

2.6. Summary of data directions between databases .........................................................................11 

3. General scheme for I&C specifications .................................................................................................12 

4. Methodology for plant system I&C architecture definition ..................................................................13 

4.1. What is proposed for plant system I&C architecture ...............................................................13 

4.2. The methodology for defining this I&C architecture ...................................................................13 

4.3. PCDH documents for I&C design ..................................................................................................15 

4.4. Illustrations for complete I&C specifications ...............................................................................15 

Example of diagrams........................................................................................................................................16 


FIGURES 

Figure 1: PCDH documents structure __________________________________________________________5 

Figure 2: plant system I&C life-cycle__________________________________________________________10 

Figure 3: Summary of data directions with the plant system configuration database and ICP/ PLM 

engineering database. _______________________________________________________12 

Figure 4: Generic scheme of ITER design for a functional design PA type. ____________________________13 

Figure 5: Generic scheme of ITER design for a detailed design PA type ______________________________13 

Figure 6: Example of diagram for I&C functions, outcome of step2 __________________________________14 

Figure 7: illustration of the characterisation of data links and I&C functions __________________________15 

Figure 8: From the FBS to the plant system I&C architecture ______________________________________15 

Figure 9: Example of PFD: Cryo-distribution system, main component and part of sensors are mentioned ___17 

Figure 10: PFD example on ACB, zoom _______________________________________________________18 

Figure 11: In this schema, the PFD is used to illustrate the process description document (text) to identify 

active components according to the operation mode________________________________19 

Figure 12: PID example on the ACB: details of instrumentation ____________________________________20 

Figure 13: Example of electrical diagram for process description: MV 22/6.6 and 0.4kV distribution and 

22/0.4kV distribution ________________________________________________________21 

Figure 14: Example of electrical diagram for process description: detail of MV 22/6.6 and 0.4kV 

distribution and 22/0.4kV distribution ___________________________________________22 


1.1. PCDH context 

1. INTRODUCTION 

The Plant Control Design Handbook (PCDH) [RD2] defines methodology, standards, specifications and 

interfaces applicable to ITER Plant Systems Instrumentation & Control (I&C) System life cycle. I&C standards 

are essential for ITER to: 

• Integrate all plant systems into one integrated control system. 

• Maintain all plant systems after delivery acceptance. 

• Contain cost by economy of scale. 

PCDH comprises a core document which presents the plant system I&C life cycle and recaps the main rules to 

be applied to the plant system I&Cs for conventional controls, interlocks and safety controls. Some I&C topics 

are explained in greater detail in dedicated documents associated with PCDH as presented in Figure 1. 

This document is one of them. 

PCDH core and satellite documents: v6 

INTERLOCK CONTROLS 

Guidelines for the design of the PIS (3PZ2D2) 

PIS, PS I&C and CIS integration 

Guidelines for PIS configuration 

Management of local interlock functions 

Management of interlock data 

OCCUPATIONAL SAFETY CONTROLS 

Rules and guidelines for PSS design 

NUCLEAR PCDH (2YNEFU) 

CATALOGUES for PS CONTROL 

Slow controllers products (333J33) 

Fast controller products (345X28) 

Cubicle products (35LXVZ) 

Network products 

PS CONTROL DESIGN 

Plant system I &C architecture (32GEBH) 

Methodology for PS I &C specifications (353AZY) 

CODAC Core System Overview (34SDZ5) 

Core PCDH (27LH2V) 

Plant system control philosophy 

Plant system control Life Cycle 

Plant system control specifications 

CODAC interface specifications 

Interlock I&C specification 

Safety I&C specification 

I&C CONVENTIONS 

I&C Signal and variable naming (2UT8SH) 

ITER CODAC Glossary (34QECT) 

ITER CODAC Acronym list (2LT73V) 

PS SELF DESCRIPTION DATA 

Self description schema documentation (34QXCP) 

PS CONTROL INTEGRATION 

The CODAC -PS Interface (34V362) 

PS factory acceptance plan (3VVU9W) 

ITER alarm system management (3WCD7T) 

ITER operator user interface (3XLESZ) 

Guidelines for archiving 

Specifications for HPN 

Specifications for time stamping 

PS CONTROL DEVELOPMENT 

I&C signal interface (3299VT) 

PLC software engineering handbook (3QPL4H) 

Guidelines for fast controllers (333K4C) 

CODAC software development environment (2NRS2K) 

Guidelines for signal conditioning 

Guidelines for I &C cubicle configurations 

TEMPLATES and ILLUSTRATIONS 

CWS case study specifications (35W299) 

LCC and SCC prototypes 

PS simulators : slow, fast, interlocks 

Legend 

This document 

Available and approved 

Expected 

(XXXXXX) IDM ref. 

1.2. Document scope 

Figure 1: PCDH documents structure 

This document completes the PCDH core document by focusing on methodology for plant system I&C design, 

see Figure 1. The scope is plant system I&C design for conventional, interlock and occupational safety 

controls; this document does not address Safety controls which are IEC61508 relevant. 

As a general statement, the plant system I&C design will be driven first by the plant system process and then 

by the plant system operation. 

Specific attention is given to the definition of the plant system process. Usually the process description is 

defined by defining the way the plant system components are operated, using text documents and process 

flow diagrams. This document proposes in addition, an approach based on a functional description of the plant 

system in order to obtain a working solution for the plant system I&C architecture. 

CAD tools are involved in the plant system I&C design; their links with the plant system configuration database 

are addressed and the specific features which may be required with these tools are clarified . Details of these 

tools and the way to use them will be developed in a specific document. 


1.3. Document identifiers 

Table 1 provides the full list of identifiers used in this document. The recommendations raised in this document 

as for the other PCDH satellite documents are mainly guidelines; some are rules and in such a case they are 

identified by a star symbol. 

As a general rule, the release of this document, like all the documents associated with PCDH mentioned in 

Figure 1, will be followed by an immediate update of the core PCDH so that the core PCDH is a single 

document containing all the mandatory rules applicable to plant system I&C. In this way it will be easier for the 

user to understand the requirements. 

AD 

GL 

RD 

 

Table 1: Paragraph identifiers 

Applicable Document 

Glossary item 

Reference Document 

Rules referenced in core PCDH 

1.4. Topics remaining to be addressed 

The details of the following topics will be addressed in the next version of this document: 

CAD tools data export 

1.5. Review, validation and thanks 

It is proposed this document is reviewed with the following objectives: 

 

Check compliance with ITER need and configuration. 

Check impact on manufacturing and technical optimisation. 

As a reference document associated with PCDH, the validation process of this document is similar to that of 

the core PCDH, involving the I&C IPT team and other IO people involved in I&C activities. Thanks to the 

people who take the time for this review. 


1.6. Acronyms 

Table 2 shows the acronyms used in this document. The relevant acronyms have been extracted from the 

complete list in PCDH . 

Acronym Item 

ANSI 1. American National Standard Institute 

CAD Computer-Aided Design 

CHD CODAC & IT, Heating & Current Drive, Diagnostics 

CODAC COntrol, Data Access and Communication 

DA Domestic Agency 

DO Design Office 

FAT Factory Acceptance Tests 

HMI Human Machine Interface 

ICP ITER Collaborative Platform 

I&C Instrumentation & Control 

IO ITER Organization 

I/O Inputs and Outputs 

IPT Integrated Product Team 

LCC Local Control Cubicle 

PCDH Plant Control Design Handbook 

PFD Process Flow Diagrams 

PLC Programmable Logic Controller 

P&ID Process and Instrumentation Diagram 

PIS Plant Interlock System 

PS Plant System 

PS OS Plant system Operation State 

PSH Plant System Host 

PSS Plant Safety System 

PV Process Variable 

RAMI Reliability, Availability, Maintainability and Inspectability 

SAT Site Acceptance Tests 

SCC Signal Conditioning Cubicle 

SRD System Requirement Document 

TBC To Be Confirmed 

TBD To Be Defined 

Table 2: Abbreviations and acronyms 

1.7. Related documents 

ITER Numbering System for Parts/Components (ITER_D_28QDBS) 

Plant Control Design Handbook (PCDH) (ITER_D_27LH2V) 

I&C signal and process variable naming convention (ITER_D_2UT8SH) 

Signal processing for I&C (ITER_D_3299VT) 

Room book for buildings 

CAD Manual - Section 14 - Diagram Guidelines (ITER_D_35CY6V) 

Function Analysis Diagram Tool Specification (ITER_D_3NSG6U) 

CWS case study specifications (ITER_D_35W299) 


2. PLANT SYSTEM I&C TECH SPECS 

2.1. I&C technical specifications in general 

'In general, the technical specifications for any plant system I&C are the result of: 

- A scope definition which defines the controls needed in order to get suitable and safe operation 

whatever the configuration and context of operation. This item is driven by the plant system 

process and by the plant system operation. 

- Rules for I&C design which are mandatory requirements set up for several purposes; mainly to 

enable the integration of the plant system I&C in a larger infrastructure and to reduce the cost of 

maintenance. 

- Guidelines which have same purpose as rules but are recommendations to be adjusted depending 

on the plant system configuration and specificity. 

PCDH requires a set of deliverables to get a definition of scope: they are the deliverables of the I&C lifecycle 

for the design phase, (see chapter 3 of PCDH). 

Rules and guidelines to be applied are defined in PCDH chapter 4 and detailed in the related satellite 

documents. See Figure 1. 

2.2. PCDH deliverables for plant system I&C technical specifications 

These PCDH deliverables for I&C specifications are: 

[D1] 

[D2] 

[D3] 

[D4] 

[D5] 

[D6] 

[D7] 

[D8] 

[D9] 

Plant system I&C architecture. 

Plant system I&C boundary definition. 

Plant systems I&C integration plan. 

Plant system P&IDs, mechanical and electrical drawings and diagrams needed for I&C 

specifications. 

Plant system controller(s) performance and configuration requirements. 

List of inputs and outputs (I/O) of the I&C controllers. 

List of the Process Variables handled by the plant system I&C controllers. 

Configuration of I&C cubicles. 

Description of plant system state machines. 

Table 3 defines the content of each deliverable: 

PCDH ID 

D1 

D2 

D3 

Sub 

Deliverable 

D1A 

D1B 

D1C 

Content 

Document introducing the main plant system functions and the main requirements 

for the plant system I&C specifications. A CODAC template is available. 

For each main plant system function, CAD diagrams including detailed I&C 

functions and links. Characterization of the functions. A CODAC template is 

available; this document provides additional details on how to issue this 

deliverable. 

Whole plant system I&C architecture including conventional, interlock and 

occupational safety controls. This architecture is a compilation of the D1Bs. 

D2A 

Details of data exchange with other plant systems. Derived from D1B and D1C 

documents. 

D2B Physical I&C interfaces with other plant systems, mainly PBS 45, 46 and 48. 

D3A 

D3B 

FAT I&C scenarios for each plant system procurement. A CODAC template is 

available. 

SAT I&C scenario for the whole plant system. A CODAC template is available. 


PCDH ID 

D4 

D5 

D6 

D7 

D8 

D9 

Sub 

Deliverable 

D4A 

D4B 

D4C 

D5A 

D5B 

D5C 

D6 

D7 

D8 

D9 

Content 

P&IDs CAD diagrams for instrumentation definition. Final diagrams are provided 

by the I&C supplier. 

CAD diagrams for I&C cabling and I&C cubicle location. Final diagrams are 

provided by the I&C supplier. 

CAD diagrams for I&C cable routing and characterization of the instrumentation 

cables. Final diagrams are provided by the I&C supplier. 

Controller network configuration, Input/Output amount and type, data sampling 

rate, requirement for time synchronisation and connection to HPN. 

Definition of technology for each I&C controller. PCDH standards apply. 

Rack hardware configuration for each I&C controller. PCDH standards apply. 

Details of inputs and outputs including name, type, data sampling rate, resolution, 

allocation to I&C controller and location, for each I/O. 

Details of data exchange with CODAC including name, allocation of PSH, time 

stamping scheme, data flow profile depending on COS and organised by I&C 

function. PV properties. 

Hardware configuration of I&C cubicle for LCC and SCC. For each cubicle 

definition of: cubicle type and configuration, location of controller racks in the 

cubicle, cable entry, cable interface, cubicle environment, cubicle HVAC, specific 

configurations if any. Guidelines will be proposed in PCDH v7. 

Sequential function charts showing the plants system operating states, links 

between these states and condition from states to states. Specific plant operating 

states and COS are included. 

Table 3: content of each PCDH deliverable for I&C specifications 

Among all these documents, the most important is the deliverable D1 for the plant system I&C architecture. 

Additional details for determining a suitable architecture is provided in chapter 4 of this document. 

Deliverable D2 is an outcome of D1 focusing on interfaces. 

Deliverable D3 for plant system I&C integration should be considered in the scope of the whole plant system 

integration. Hence, it should be incorporated in the overall plan and scenario for plant system integration. 

Deliverable D4 for CAD diagrams is mentioned in this list of technical documents for I&C specification, but 

these CAD diagrams are also issued for other purposes such as process design, piping and cabling. Hence 

they are common deliverables shared with other topics of the plant system design. 

Deliverable D5 addresses the controller hardware configuration. The details of this configuration will be 

determined mainly by the I&C supplier. It is mentioned in this list in order to give general requirements for this 

configuration such as compliance with HW standards. This deliverable is also partially an outcome of D1. 

Deliverable D6 is another outcome of D1 focusing on signals connected to the controllers. 

Deliverable D7 is again an outcome of D1 focused on interface with CODAC infrastructure. 

Deliverable D8 provides general requirements of I&C cubicle HW configuration. As for D5, the details of this 

configuration will be determined mainly by the I&C supplier. It is mentioned in this list in order to give general 

requirements for this configuration such as compliance with standards and cabling rules. 

Deliverable D9 is mentioned to be able to prepare the integration of the plant system operation and check 

compliance with Common Operating States and state machines. 


PS I&C Life Cycle: from design to operation & maintenance 

PS design phase 

EDH 

PCDH 

Inputs for 

I&C design 

PS I&C 

design 

PS 

design 

review 

PS manufacture phase 

PCDH 

PCDH 

PS 

manufacture 

including I&C 

PS FAT 

including 

I&C 

PCDH 

PS integration phase 

PS on site 

Installation 

including I&C 

PCDH 

PS SAT 

including 

I&C 

PCDH 

PS integrated 

commissioning 

Operation and 

maintenance phase 

PCDH 

Operation & 

maintenance 

Figure 2: plant system I&C life-cycle 

2.3. Inputs for plant system I&C technical specifications 

In order to initiate the design activity, a set of inputs are assumed to be available. The main inputs are: 

Plant system I&C operation and control philosophy: this gives some high level requirements 

to be used for the design of the plant system I&C. These requirements are used for the 

deliverable D1 mainly. 

Plant system functional analysis: this is another input to be used for D1. This functional 

analysis is operation oriented and is normally aligned with the functional breakdown 

performed in scope of RAMI analysis. 

Plant system PFDs, mechanical and electrical drawings and diagrams needed at the 

conceptual design phase. 

A list and short description of main plant system operating states for plant system operation. 

Plant system risk analysis and I&C RAMI requirements: this determines the main risks to 

protect the plant system. 

System Interface Control Documents (S-ICDs) relevant for the plant system I&C. 

List and specifications of the main protection functions to implement in the plant system I&C. 

This is issued from I5, may be merged with I5. 

List and specifications of the main safety functions to implement within the plant system or 

with respect to other plant systems. Similar to I7 for Safety. 

Mapping of deliverables / inputs: Dependency of inputs and deliverables (top row) on other deliverables (left 

column): 


D1 D2 D3 D4 D5 D6 D7 D8 D9 I1 I2 I3 I4 I5 I6 I7 I8 

D1 - - - - - - - - - X X X - X - X X 

D2 X - - - - - - - - - - - - - X - - 

D3 X X - - - - - - - - - - - - - - - 

D4 X X - - - - - - - - - - X - - - - 

D5 X X - X - - - - - - - - - - - - - 

D6 X X - X X - - - - - - - - - - - - 

D7 X X - X X X - - - - - - - - - - - 

D8 X X X X X X - - - - - - - - - - 

D9 X X - X X X X - - - - - - - - - - 


2.4. Review of PCDH deliverables for I&C specifications. 

Table 4 provides the maturity level of each deliverable required for each of the design reviews, Conceptual 

Design Review (CDR), Preliminary Design Review (PDR) and Final Design Review (FDR). 

Dn 

D1 

D2 

D3 

D4 

D5 

D6 

D7 

PCDH ID 

Name 

Plant system I&C architecture. 

Plant system I&C boundary 

definition. 

Plant systems I&C integration 

plan. 

Plant system P&IDs, 

mechanical and electrical 

diagrams needed for I&C 

specifications. 

Content 

Document availability and review status for reviews 

CDR PDR FDR 

D1A - Fully consolidated version - 

D1B - 

Partially consolidated Fully consolidated 

version 

version 

D1C - 

Partially consolidated Fully consolidated 

version 

version 

D2 - Fully consolidated version - 

D3 - 

D4 - 

Plant system controller(s) 

performance and configuration 

requirements. D5C - 

List of inputs and outputs (I/O) 

of the I&C controllers. 

List of the process variables 

(PV) handled by the plant 

system I&C controllers 

Partially consolidated 

version 


version 

Fully consolidated 

version 


version 

D5A - Fully consolidated version - 

D5B - Fully consolidated version - 


version 


D6 - 

version for limited scope: 

only list of I/Os with name 

for each I&C controller. 

D7 - 

D8 Configuration of I&C cubicles. D6 - 

D9 

Description of plant system 

state machines. 

D7 - 



only list of PVs with name 

for each I&C function. 



definition of cubicle 

location and environment. 



definition of operating 

states 

Table 4: maturity levels depending on design reviews for I&C specifications 


version 


version 


version 


version 


version 


2.5. CAD tools involved in plant system I&C design activities 

CAD tools are required to issue the I&C specifications for D1, D4 and D8. These CAD tools address electrical, 

mechanical and fluid descriptions of the plant system; they are specified, selected and managed by the IO 

Design Office (IODO). Examples of such diagrams and drawings are given at the end of this document. 

The CAD diagrams and drawings will have to be updated throughout the whole life-cycle of the plant system. 

IO, DAs and industry will be involved in this update process. 

A specific CAD tool will be developed to support the specifications of the I&C functions (available by the 

beginning of 2011) for D1. Specifications of this CAD tool are available in [RD7]. 

These Cad tools are managed by IO Design Office (DO) and shall be used for any of the diagrams and 

drawing types as listed in following table. 

Diagrams / Drawings type 

IO standard tools 

Mechanical drawings CATIA V5 

PFD diagrams See System Design 

P&ID diagrams See System Design 

Electrical diagrams See System Design 

Functional analysis diagrams See System Design 

Cubicle configuration drawings See Electrical Expert 

2.6. Summary of data directions between databases 

These diagrams and drawings and related data are stored in Design Office databases (See System Design 

and ICP/PLM). The idea is to use a part of these data for the configuration of the plant system I&C systems. 

Hence, Design Office databases and CODAC databases will have to exchange data to have a consistent 

design. Data links are summarized below: 

Process 

name 

P&ID CAD 

I&C Function 

Analysis 

Plant I&C 

Diagram 

See 

System 

Design 

database 

Possible extraction 

Plant System 

Configuration 

Database 

ICP 

Engineering Database 

Cubicle 

configuration 

Diagram 

Figure 3: Summary of data directions with the plant system configuration database and ICP/ PLM engineering 

database. 


3. General scheme for I&C specifications 

Plant system I&C design will follow the ITER model for design which defines the three following phases: 

conceptual design, preliminary design and final design. 

Whichever phase is concerned, the deliverables listed in chapter 2 of this document shall be addressed 

and shall be issued and updated in compliance with the IO Design Office policy. 

The plant system I&C design will follow in a parallel way with the full plant system design and will share the 

same milestones for reviews: Conceptual, preliminary and final design reviews. 

Whatever the PA type: functional, detailed design or build to print, the PCDH deliverables shall be issued; only 

the responsibility for issuing them by IO and DAs changes depending on the date of the PA signature. See 

Figure 4 and Figure 5 for functional and detailed PA types. 

Whatever the PA type IO will have to approve these I&C specifications. 

Figure 4: Generic scheme of ITER design for a functional design PA type. 

Figure 5: Generic scheme of ITER design for a detailed design PA type 


4. Methodology for plant system I&C architecture definition 

4.1. What is proposed for plant system I&C architecture 

 

 

 

A Functional Breakdown System (FBS) to determine the process function of the plant system and to 

identify the I&C functions required to control the plant system. 

CAD diagrams and text documents giving details for each I&C function. The I&C functions and the 

data links between the I&C functions are characterized. 

A definition of the controllers to implement these I&C functions. 

A complete architecture showing all the plant system controllers of the plant system I&C and networks 

to implement the data links. 

This architecture addresses all conventional, interlock and safety controls. Nuclear safety controls are not 

included because they have to be segregated. 

4.2. The methodology for defining this I&C architecture 

 

 

 

 

Step1: Issue the D1A document, incorporate the FBS for the plant system and the main requirements 

for the I&C design coming from the plant system itself. These requirements include the philosophy for 

I&C design (Input I1) and any specific requirement the PS RO would like to add. 

Step2: For each process function identified in the FBS, develop the CAD diagrams introducing the I&C 

functions required to control the process function, see illustration in Figure 6. Determine the data links 

which are required between these I&C functions and with other functions of the plant system and 

outside the plant system. Name these I&C functions and data links. Characterize these links and I&C 

function for data type, signal type, response time and SIC level. See illustration in Figure 7. 

Step3: Determine the controllers required to perform these I&C functions. Pay attention to consistency 

for operation and technology required, in particular for time response and SIC level. See illustration in 

Figure 8. 

Step4: Determine the complete architecture of the plant system I&C with all controllers linked together 

by CODAC infrastructure networks. See illustration in Figure 8. 

HVPS 

51.HV.1 

RF source 

51.ANT1.CONF.PARA.L1 

HVPS 

51.HV.1 

HVPS control & 

51.ANT1.HVCM.L1 

mgmnt 

51.ANT1.HVPS 

51.ANT1.HVPS.MESM.L1 

Amplitude 

Mearement 

51.ANT1.HVPS.MESM.L2 

51.RS.1 

51.ANT1.FAFB.PROT.L1 

51.ANT1.HVRF.INTF.L1 

High Volt control & 

mgmnt 

51.ANT1.HVRF 

51.ANT1.FAFB.PROT.L2 

51.ANT1.HVRF.MESM.L2 

Amplitude 

Mearement 

51.RS.1 

51.RS.1 

51.ANT1.HVRF.MESM.L1 


51.ANT1.FAFB.RFPW.L1 

51.ANT1.PROT.OVRV.L1 

CONF 

ANT2 

CORD 

HVPS 

HVRF 

51 

ANT1 

TEST 

PROT FAFB 

SPLR 

TLMN 

MATC HVDL 

PPTF 

HPLS 

51.ANT1.FAFB.CORD.L1 

51.ANT1.PCS.FAFB.L1 

ICH fast feedback 

Controller 

51.ANT1.FAFB 

ICH coordination 

51.ANT1.CORD 

51.ANT1.HVPS.PROT.L1 

51.ANT1.FAFB.CORD.L2 

Amplitude 

interlock control 

51.ANT1.PROT 

51.ANT1.PCS.CORD.L1 

51.ANT1.FAFB.MONI.L1 

51.ANT1.FAFB.MONI.L3 

Amplitude 

monitoring 

51.ANT1.MON1 

51.ANT1.MON1.L1 

PCS 

CODAC 

47 

45 

Figure 6: Example of diagram for I&C functions, outcome of step2 


Function definition 

Links 

Nb. 

IO - V 

Response 

time 

51.ANT1.CONF.PARA TBD 500 ms 

51.ANT1.CONF.PARA.L7 TBD 500 ms 


to 


51.ANT1.CORD.REFR.L1 

to 

51.ANT1.CORD.REFR.L5 

TBD 

TBD 

500 ms 

500 ms 

Purpose 

Configuration of parameters from PCS 

in to ICH coordination controller. 

ICH Coordination controller checks 

request for ICH range and limits w.r.t 

its current status, if request is valid then 

send back acknowledgement. If invalid 

request then send back the token 

information about incorrect parameter 

requested for new request. 

Configuration of initial parameters in to 

HVPS, RF Synthesizer, RF Source, 

Fast feedback controller and Matching 

System respectively a typical pre-shot 

configuration by ICH coordination 

controller. 

Frequency reference for RF Frequency 

to IF conversion 

SIL 

0 

0 

0 

0 

Figure 7: illustration of the characterisation of data links and I&C functions 

Figure 8: From the FBS to the plant system I&C architecture 


4.3. PCDH documents for I&C design 

Topic 

Plant Control Design Handbook 

I&C signal and variable naming convention 

Self description schema documentation 

The CODAC - Plant System Interface 

Methodology for PS I&C design 

Plant system case studies for illustration 

IDM ref 

27LH2V 

2UT8SH 

34QXCP 

34V362 

353AZY 

35W299 

Status 

Available 

Available 

Available 

Available 

Available 

Available 

Table 6: documents for I&C specifications 

Topic 

Plant Control Design Handbook 

I&C signal and variable naming convention 

ITER PLC (Slow Controller) catalogue 

CODAC Catalogue of I&C products – Fast Controllers 

Fast Controller Technical Note -Methods between 

Interconnected Systems 

ITER Cubicles catalogue 

I&C signal interface guidelines 

I&C cubicle wiring configurations guidelines 

FAT and SAT scenarios 

Rules and guidelines for PIS design 

Rules and guidelines for PSS design 

Guidelines and templates for slow controller user software 

development 

Mini CODAC and PSH configuration user manuals 

IDM ref 

27LH2V 

2UT8SH 

333J63 

345X28 

333K4C 

35LXVZ 

3299VT 

- 

3VVU9W 

3PZ2D2 

- 

3QPL4H 

- 

Status 

Available 

Available 

Available 

Available 

Available 

Available 

Available 

To come beg. 2011 

Available 

Available 

To come beg. 2011 

Available 

To come 2011 

Table 7: documents for I&C manufacture 

4.4. Illustrations for complete I&C specifications 

See the [RD8] document which provides a simple illustration for a case study which will be used to illustrate 

PCDH and CODAC core for standards, tools, guidelines and methods. 


Figure 9: Example of PFD: Cryo-distribution system, main component and part of sensors are mentioned 


Figure 10: PFD example on ACB, zoom 


Figure 11: In this schema, the PFD is used to illustrate the process description document (text) to identify active components according to the operation mode 


Figure 12: PID example on the ACB: details of instrumentation 


Figure 13: Example of electrical diagram for process description: MV 22/6.6 and 0.4kV distribution and 22/0.4kV distribution 


Figure 14: Example of electrical diagram for process description: detail of MV 22/6.6 and 0.4kV distribution and 22/0.4kV distribution

Methodology for Plant System I&C specifications - Iter

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