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					   PREPARED
                      NA
      BY                                               PTT PUBLIC COMPANY LIMITED
   CHECKED
      BY                                               ONSHORE COMPRESSOR STATION 4
                                                       PROJECT
   APPROVED
       BY
    CERTIFIED
                      NA
      (PTT)
REV.      DATE      REVISED   APPROVED                        DESCRIPTION
NO.                   BY         BY
 D1     18-Feb-08                NA       ISSUED FOR ITB
 D2     19-May-08                NA       REVISION ISSUED FOR ITB




                              SPECIFICATION FOR

    DISTRIBUTED CONTROL SYSTEM SPECIFICATION

                           SPC-0804.02-60.05 REV.D2
                                      TOTAL 31 PAGES




                                                                .
                        AREA CODE OF SITE LOCATION

                                   GENERAL AREA: 010
                        PTT PLC. CONTRACT NO.                   PTT PLC. PROJECT NO.

                                                                            0804.02
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SPECIFICATION                  ENGINEERING SPECIFICATION                        REV: D2



                                             CONTENTS

SECTION

1.0    SCOPE OF SERVICE .............................................................................. 3

2.0    SYSTEM OVERVIEW ............................................................................. 3

3.0    DEFINITIONS AND ABBREVIATIONS ....................................................... 4

4.0    APPLICABLE SPECIFICATIONS, STANDARDS AND DRAWINGS ................. 5

5.0    GENERAL REQUIREMENTS .................................................................... 6

6.0    HARDWARE REQUIREMENTS................................................................10

7.0    FUNCTIONAL REQUIREMENTS ..............................................................18

8.0    ENGINEERING, DETAILED DESIGN AND IMPLEMENTATION ......................25

9.0    INSPECTION AND TESTING ..................................................................26

10.0   INSTALLATION AND COMMISSIONING ..................................................29

11.0   DELETED. ...........................................................................................30

12.0   DOCUMENTATION REQUIREMENT ........................................................30
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1.0   SCOPE OF SERVICE

1.1   This Specification defines the minimum technical and functional requirements
      for the Distributed Control System (DCS) to be installed for the Onshore
      Compressor Station 4 (OCS# 4). It also covers the requirements for the
      supply, installation, testing, and commissioning of the DCS system for the
      OCS# 4 project.

1.2   The Vendor shall furnish all labor, material, equipment, transportation, and
      facilities necessary to perform all work as defined in this specification and on
      the related drawings.

1.3   The work required of the Vendor includes design, engineering, procurement,
      transportation, installation, commissioning, and start-up of DCS hardware and
      software required for the monitoring and control of the OCS# 4 and FTPP
      facilities.

1.4   The DCS vendor shall be the single source of supply, engineering, installation
      and testing for the Safety Instrumented System logic solver, Plant Information
      Management System and Plant Resource Management System


2.0   SYSTEM OVERVIEW

2.1   The functions of the DCS are to control and monitor the OCS#4 and FTPP
      facilities to continuously produce on-specification products.

2.2   The OCS# 4 shall be controlled and monitored by the Yokogawa Centum CS
      3000 R3 DCS system or the latest Yokogawa Centum series.

2.3   The system shall consist of a network of the Field Control Stations and
      Human Machine Interface work stations (HMI) which shall be located at the
      new Control Building. They shall provide the core DCS functions of:

      •      Acquiring data from field instrument devices via Field Control Units
             (FCU) located locally at the instrument rack room in the new control
             building.

      •      Acquiring data from the SIS logic solver, compressor control system,
             electrical system, FTPP SIS logic solver, DCS systems provided by the
             FTPP and LNG contractors, and other package equipments.

      •      Processing the field data to detect alarms and other significant
             process/data changes.

      •      Performing process and sequence control functions

      •      Presenting the data to the user via easy to understand graphical
             displays and reports

      •      Performing system monitoring and diagnostics to detect failure of
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            hardware and/or software and take appropriate actions.

2.4   The control and data acquisition equipments shall be housed at the instrument
      rack room in the new control building and/or other remote equipment rooms
      distributed throughout the facilities. A redundant fibre optic communication
      network shall link the various equipment rooms to the new control building.

2.5   The DCS system shall utilize a dual redundant Fast Ethernet LAN as the core
      communications backbone of the system. Each FCS and HMI workstations
      shall be connected to both system LANs.

2.6   Industrial type PC-based Operator workstations shall be used to access the
      process information in the FCSs. Each Operator workstation shall be
      connected to both DCS LANs and shall allow the user to interact with the
      information in the DCS system.

2.7   The Operator workstations    shall function as the main interface for the DCS
      and SIS provided by both     OCS# 4 and FTPP contractors, the compressor
      control system, the fire &   gas system, the machine monitoring system and
      other package equipments.    The functions of these work station shall include
      at least;

      •     Graphical displays showing the process and equipment conditions of
            the FTP facilities

      •     Trends of selected process variables

      •     Alarm / Event management including alarm acknowledgment

      •     Commands and controls to change the operating state of the FTP
            facilities

      •     Summaries and reports

2.8   The DCS system shall support open interfaces with other systems such as
      higher level management information systems and other business systems.
      The system shall support TCP/IP based links to these external systems. The
      DCS system shall support the use of “standards” commonly used in the
      Microsoft environment, including OPC and COM.



3.0   DEFINITIONS AND ABBREVIATIONS
      AMS                 -        Asset Management System

      PRM                 -        Plant Resource Management

      CCR                 -        Central Control Room FTP facilities

      DCS                 -        Distributed Control System

      EMC                 -        Electromagnetic Compatibility
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      IS                      -     Intrinsically Safe

      MTTR                    -     Mean Time To Repair

      MTBF                    -     Mean Time Between Failures

      RTD                     -     Resistance Temperature Detector

      SER                     -     Sequence Of Events Record

      UPS                     -     Un-interruptible Power Supply

      VDU                     -     Visual Display Unit (LCD TFT Type)

      HMI                           Human Machine Interface

      FTP Faculties           The PTT facilities including the OCS# 4 and
                              facilities provided by the FTPP contractor



4.0   APPLICABLE SPECIFICATIONS, STANDARDS AND DRAWINGS
4.1   Project Specification

      PHC-0804.02-60.01             Instrument and Control Philosophy

      SPC-0804.02-60.01             Instrumentation General Specification

      SPC-0804.02-60.02             Safety Instrumented System Logic Solver
                                    Specification

4.2   International Standards

      IEC 79                  -     Electrical Apparatus in Explosive Atmosphere

      IEE                     -     Guidelines for the documentation of software in

                                    industrial computer systems

      89/336/EEC              -     European Union EMC Directives

      EN 50081-2              -     Emission, Industrial Environments

      EN 50082-2              -     Immunity, Industrial Environment

      IEC 61000-4             -     Electromagnetic Compatibility

      MIL-STD-217E            -     Military Handbook - Reliability Prediction of

                                    Electronic Equipment

      ISO 11064-3             -     Ergonomic Design of Control Centres
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      ISO 9241-3, -5        -     Ergonomics requirements for office work with
                                  Visual Display Terminals (VDTs)

4.3   Project Drawings

      60-3-0804.02-6000-001       OCS 4 Control System and Interface Block
                                  Diagram

      60-3-0804.02-6000-002 to 004       OCS 4 Control System and Interface
                                         Architecture



5.0   GENERAL REQUIREMENTS
5.1   System Environment

      The DCS equipments shall be installed in the control building, where the
      temperature and humidity are climate controlled, i.e. air-conditioned.
      However, in the event of failure of the air-conditioner, the system is expected
      to continue normal operation. Therefore, the system shall be designed for
      continuous operation under the following conditions:

      •      20º to 50º Celsius operating temperature range

      •      10% to 95% relative humidity, non condensing

5.2   System Architecture

5.2.1 The system shall comprise of a distributed architecture with a microprocessor-
      based control system consisting of discrete types of functional hardware
      elements interconnected to provide overall system functionality, i.e.
      distributed architecture.

5.2.2 The system shall also be geographically distributed with the control and data
      acquisition functions performed at a remote location within the OCS# 4 area
      and the control and monitoring of these functions from the new Control
      Building..

5.2.3 The DCS shall be based on an “open” architecture where the system has
      inherent capabilities to integrate and exchange information with other systems
      and/or platforms via industry standard protocols.

5.2.4 The DCS network system shall be based on fast dual redundant Ethernet LAN
      network. The failure of one network cable shall not have any impact to the
      operation of the DCS system.

5.2.5 The arrangement for the Field Control Stations (FCS) shall prevent the
      common cause of inoperability for the equipment trains when the FCS/ its
      part fail or are under maintenance. All field process devices of different
      compressor trains shall not be connected to the same FCS and the same
      principal shall be applied to the inlet scrubber trains and communication
      between DCS and the compressor control systems.
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5.3   System Spare Capacity, Loading and Expansion Requirements

5.3.1 The DCS system shall be designed such that after the completion of
      commissioning the following evenly distributed spare capacity shall be
      available:

      I/O Modules               -      30% installed, wired and fully functional

                                       I/O of all types used

      I/O Racks                 -      30% fully wired spare rack

      Terminal Blocks           -      30% spare terminal blocks shall be

                                       provided in cabinets containing terminal

                                       blocks

      System Cabling            -      30% spare pairs over and above the I/O

                                       module/rack spare requirements

      Fibre Optic Cables        -      100% spare Fibres

      DCS Communication Port    -      100% spare

5.3.2 The system shall be designed such that, after the completion of
      commissioning, no more than 60% of processing capacity and/or memory is
      utilised (Spare capacity to be included).

5.3.3 The system communication network shall also be design so as not to exceed
      60% loading after the completion of commissioning (Spare capacity to be
      included).

5.3.4 The system power supply units shall include 30% spare capacity over the
      required loading (including the spare capacities).

5.3.5 The system shall be designed such that 30% future expansion can be
      accommodated without any modification or replacement of existing
      equipment, communication systems or software.

5.4   System Availability and Redundancy

5.4.1 The system shall be designed to achieve an availability of 99.99999% with
      an assumed Mean Time To Repair (MTTR) of eight hours or less and a Mean
      Time Between Failures (MTBF) of 5,000,000 hours or more. This shall be
      demonstrated by calculations as defined in US Military Handbook Standard
      217E.

5.4.2 In order to meet the required system availability, redundant and/or fault
      tolerant technology shall be incorporated.
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5.4.3 As a minimum the following equipment shall be redundant:

           -   Communication Network including fibre optic cabling

           -   Control Processors

           -   Mass data storage devices

           -   Power Supplies

           -   I/O cards for control loops

           -   Redundant network cards for the operator workstations

           -   Network Hubs

5.4.4 The system database shall be bi-weekly backed-up.

5.4.5 The redundant system shall be designed such that, on failure, automatic
      bumpless changeover to the other unit shall take place. It shall also be
      possible to replace and test the failed unit without disrupting the control of
      the process.

5.5    System Protection Requirements

5.5.1 The system shall support at least three different levels of access control either
      via the use of a removable key and/or by entering a pre-configured password.
      It shall also be possible to configure user-specified functions to the following
      levels.

       •       Operator Level        This level shall include typical operator functions

                                     and not require a key or password.

       •       Supervisor Level      This level shall include all the operator functions

                                     as well as the pre-configured supervisory

                                     functions and shall require a key or password.

       •       Engineering Level     This level shall include all functions and

                                     require a key or password.

5.5.2 Different type of keys shall be used for the supervisory and engineering levels.
      Once removed, access will revert to the operator level.

5.5.3 The system shall be provided with the firewall to protect the unauthorized
      access from outside. The firewall shall be Nokia or equivalent.

5.5.4 The system shall be provided with Synmatec anti virus software. The anti
      virus server shall be provided to receive the update version of anti virus
      software via the internet and then distribute to the DCS and PIMS system.
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      The supplier shall configure the antivirus server to prevent unauthorized
      access from outside.

5.5.5 The Plant Information Resource Management System shall be connected to
      the DCS network via firewall.

5.6   System Electrical Requirements

5.6.1 The DCS equipment shall be installed in the new control building and auxiliary
      equipment rooms, which shall be considered as safe areas. Equipments
      connected to the DCS, normally situated in areas classified as hazardous,
      shall be connected to the DCS via approved interfacing equipment.

5.6.2 The preferred method of hazardous area protection is intrinsically safe. The
      use of IS certified I/O modules shall be preferred to discrete IS barriers. In
      such cases, the DCS VENDOR shall provide the certified I/O termination units
      for installation into the Client’s marshalling cabinets.

5.6.3 The DCS shall comply with all relevant European Union Electromagnetic
      compatibility (EMC) directives and, in particular, compliance with IEC 61000-
      4.

5.6.4 The DCS shall be powered by two A.C. feeders connected to two
      independent 230 volts 50 Hz Uninterruptible Power Supplies (UPSs). The DCS
      power shall be derived from these including all necessary distribution and
      protection. Each cabinet/system shall be provided with redundant power
      supply units, each sized and networked such that a system shutdown shall
      not be caused by the failure of one of these units. Any power supply unit
      failure shall generate both local and control room alarms.

5.6.5 Where possible, field devices, connected to the DCS and operating at 24 volts
      DC, shall be powered by the DCS with all necessary protection of the field
      circuits such as surge protection etc.

5.7   Standard Hardware and Software

5.7.1 The system shall comprise standard hardware and software configured to
      meet the stated requirements.

5.7.2 The system’s standard operating software shall not be modified to meet the
      project requirements.

5.7.3 The system software shall be the latest commercially released version at the
      time of order placement.

5.7.4 All necessary software licences shall be provided, enabling the right to
      exercise the use of all relevant and applicable software.
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6.0    HARDWARE REQUIREMENTS
6.1    Operator Console

6.1.1 The DCS Operator Workstations shall be housed in a purpose made console
      designed specifically to be used as a control console for the DCS and control
      systems, such as Evans Consoles or equivalent.

6.1.2 The consoles shall provide five operating positions, each with space for 2
      display units, vertically arranged, of at least 21” viewable area in size. Three
      spaces shall be used for the DCS display units. The fourth space shall be used
      for the remote compressor control display units. The last one shall be for the
      Fire & Gas and CCTV display units, Fire & Gas on the bottom and CCTV on
      the top.

6.1.3 The space between operating position shall be wide enough to prevent the
      congestion of the operator position.

6.1.4 Console shall be modular in design and construction, capable of being
      expanded in the future to add additional modules and positions.

6.1.5 Each module shall be approximately 36 inch in width and shall accommodate
      two vertically arranged 21-inch display units. An “enclosed” type design shall
      be used where the display units and all components of the PC’s are enclosed
      under removable panels. The panels shall be easily removable without tools.

6.1.5 For the modules that house auxiliary equipments, the width for each model
      shall be suitable for its application.

6.1.6 The overall DCS console shall consist of at least 10 modules to be used as
      follows:

      • 5 display units, each for vertical arranged dual display units (Five operator
      positions) and be equipped with telephone mount.

      • 1 communication units of communications equipment such as the UHF
        radio based station and PAGA controller

      • 2 auxiliary units for the key switches, the push buttons, annunciators and
        the indication lamps.

      • 2 storage units/work surface at each end to provide additional space for
        operating manual storage and office space.

6.1.7 The arrangement for the module shall allow the easy access to the push
      buttons and the indicator lamps are clearly visible for each operating position.

6.1.8 The console shall be specifically designed to work with flat panel displays.
      The display modules shall be equipped with a non-glare glass protective cover
      for the LCD display panels.
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6.1.9 Non-glare area task lighting shall be provided for the console by a hidden
      lighting strip at the top edge of the console. Intensity of the lighting shall be
      user controllable.

6.1.10 The console system shall be designed to provide adequate ventilation to
       equipment inside through the use of ventilation grills (and fans, if necessary).

6.1.11 Hardware, such as CPU’s and networking equipment, mounted inside the
       console shall utilize pull out drawers or shelves to allow easy access for
       maintenance and service of the equipment.

6.2 Operator and Engineering Workstations

6.2.1 The total of 6 operator workstations shall be provided as follow.

       •      Three DCS operator workstations, each equipped with dual screens.
              These workstations shall be used for the monitoring and control of the
              FTP facilities.

       •      Two operator workstations, each equipped with one screen. One
              workstation shall be used as the remote compressor unit control panel
              HMI. The other shall be for the remote HMI of the compressor master
              performance, anti surge and load sharing controllers. The screens of
              these workstations shall vertically mount in the DCS console.

       •      One operator workstations, equipped with one screen. This
              workstation shall be for the remote HMI of the Fire & Gas systems

       The contractor shall ensure that the DCS vendor hands over one dual screen
       DCS operator workstation to the FTPP contractor and the other single screen
       workstations to the related system vendors during the engineering phase.
       From the pre commissioning phase, these workstation shall be housed in the
       same DCS consoles.

6.2.2 The DCS operator workstations shall be the latest industrial grade PC from
      the reliable and proven manufacturer. The performance and specification for
      these workstations shall meet the intended purposes.

6.2.3 Where dual screens (stacked) are specified, only one keyboard and pointing
      facility are required to access both screens.

6.2.4 Each operator workstation shall be powered from a redundant power supply
      arrangement and also have dual redundant network connections to each of
      the networks to which it is connected.

6.2.5 The screen display units shall be as a minimum 21" diagonal screens with
      high resolution graphics (minimum 1600 x 1200 pixels), with minimum 8
      control (increment / decrement) key built-in with optical mouse. The LCD shall
      be flicker-free and glare-free. Standard screen controls such as brightness,
      etc., shall be accessible to the operator.
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6.2.6 The typical computer keyboard shall be provided for each operator
      workstation which is not for the DCS system.

The following requirements are for the operator workstations dedicated to the DCS
system.

6.2.6 Each workstation shall be capable of storing all particular graphics assigned to
      that workstation and any other workstation graphic once transferred from the
      data storage medium without the need for cartridges, disks, etc.

6.2.7 Upon failure of a workstation, all its functions, that are not otherwise
      accessible, shall be assigned automatically to another workstation in that
      particular console.

6.2.8 Operator keyboards shall be spill proof membrane type keyboards with a
      minimum of 64 dedicated and/or variable function keys (configurable).

6.2.9 A separate engineering workstation shall be provided. It shall be a desktop
      style industrial type PC and include all the functionality as specified for the
      DCS operator workstation. In addition it shall provide all of the engineering
      tools necessary to configure the system database, include a cartridge drive for
      loading or storing software, an alpha/numeric keyboard and any other
      enhanced hardware features as required by the system VENDOR.

6.2.10 A detachable engineering keyboard shall be provided, and shall be used for
       connection to any of the operator consoles.

6.2.11 A Plant Resource Management System (PRM) shall be provided. This system
       shall be installed in the control room.

6.3   Printers

6.3.1 Two A3 colour laser printers shall be provided. One printer shall be connected
      to the main DCS hub to allow each operator or engineering workstation to
      print out the selected logging of alarm, events, reports, system configuration
      and any other information in colour. Another printer shall be connected to the
      auxiliary hub to allow the PIMS, PRM, Bently Navada System 1 and APC
      server (provided by the FTPP contractor) to print out the reports and other
      information as required by the users.

6.3.2 The operator shall be able to print out any graphical display in colour from any
      operator workstation.

6.3.3 The printer shall be equipped with the hot-stand by redundant network cards
      and be connected to both LAN of the redundant DCS network.

6.3.4 Both printers shall be equipped with 512 MB RAM as minimum.
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6.4    System Control Processor Requirements

6.4.1 Control and data acquisition functions shall be performed by fully redundant
      microprocessor-based controllers, capable of supporting multiple loops via a
      flexible array of I/O options.

6.4.2 These control processors shall be able to support multiple I/O processors.

6.4.3 Deleted.

6.4.4 The overall system performance shall, as a minimum, provide the following
      response times based on the actual system I/O loadings:

         Analogue and digital control loops execution frequency of 50 mS
         configurable up to 1 second

         Operator workstation command execution within 1 second

         Operator workstation command to the field equipment within 1 second

         Operator workstations refresh rate of 1 second or less for the update
         information from the field equipment

6.4.5 The control processors together with the I/O processors shall provide
      independent control and monitoring of the OCS# 4.

6.4.6 In the event of total communication system failure, the controllers shall
      continue to operate with the last valid information received. In addition, each
      output shall be configurable to either maintain its current value or be driven to
      a predefined state on input or processor failure.

6.5    System I/O Requirements

6.5.1 The Field Control Station (FCS) shall be allocated such that independent
      process units/trains can be operated and maintained without affecting the
      other units upon the failure of the FCS. As minimum, three FCSs are foreseen
      for the OCS# 4.

6.5.2 The critical I/O within a particular FCS shall be separated to minimise the
      effect of common mode failures. The required segregation shall be confirmed
      during detailed engineering.

6.5.3 System I/O shall be selected such that the requirement for separate signal
      conversion and/or protection shall be kept to a minimum. The use of I/O with
      signal processing and/or protection facilities built-in shall be preferred.

6.5.4 If discrete signal converters and/or IS barriers are essential, they shall be
      supplied and installed in the marshalling cabinets.

6.5.5 All field measurements shall utilise “Foundation fieldbus” transmitters. This
      will enable full digital communication with the DCS, and transmitter access
      directly from the Plant Resource Management System. (PRM)
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6.5.6 Maximum 8 number of Foundation Fieldbus transmitters per one segment
      shall be utilised.

6.5.7 All analogue inputs and outputs shall be short circuit proof and individually
      fused or isolated to provide electrical input isolation.

6.5.8 All digital inputs and outputs shall be individually fused or isolated to provide
      electrical input isolation. Digital outputs shall also be short circuit proof.

6.5.9 All system I/O shall be local to the controller equipment (within 50 metres).
      The use of remote I/O shall only be employed when specifically called for.

6.5.10 In addition to Foundation Fieldbus signals, the system shall support the
       following analogue input signal types:

        4 - 20 mA (Self powered)

        4 - 20 mA (Externally powered, floating or grounded)

        1 - 5 volts

        Thermocouple

        Resistance Temperature Detector (RTD)

        The overall accuracy of the analogue signals shall be better than ±0.1% of
        span and ±0.5% of the maximum range for the selected type of
        thermocouple.

6.5.11 Input isolation shall be provided for all I/O devices with external AC supplies
       or with grounded 4 - 20 mA signals.

6.5.12 All analogue outputs shall be 4 - 20 mA, fully isolated from ground and be
       capable to drive resistive loads of 750 ohms. The overall accuracy shall be
       ±0.25% of full scale and a resolution of ±0.1%.

6.5.13 The analogue input and output systems shall provide a means of “stripping”
       the HART data signal from the analogue signal to make the data available to
       the PRM. Preferably this functionality shall be included in the DCS analogue
       input/output module.

6.5.14 Digital inputs. The system shall support both normally open and normally
       closed contacts with circuitry to ensure that “chatter” or “bounce”,
       encountered during contact closure, does not initiate an erroneous signal.

6.5.15 External contacts shall be voltage and ground free and shall normally be
       powered from the system.

6.5.16 Digital outputs. The system shall support both solid state and relay contact
       type outputs.
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6.5.17 Solid state outputs shall be capable of supplying a 1 amp non-inductive load
       at 24 volts DC and be isolated from ground.

6.5.18 Relay contact type outputs shall be voltage free, isolated from ground, and
       fully independent from each other, with a minimum contact rating of 2
       amps.

6.5.19 The system shall support pulse type inputs of rectangular and/or sine waves
       with pulse frequencies up to 10 KHz and levels of between 12 and 24 volts
       dc.

6.5.20 The system shall support hardwired sequence of events record (SER) digital
       inputs which shall, generally, conform to the same requirements as normal
       digital inputs although the maximum event resolution shall be 10
       milliseconds (time from event to the time stamping thereof).

6.6      Foundation Fieldbus

6.6.1 For the Fieldbus field devices, the system shall be Foundation Fieldbus
      compatible devices. Communication with intelligent transmitters shall be bi-
      directional allowing read / write procedures.

6.6.2 Vendor shall supply the software tools in the Engineering Workstation to
      create Fieldbus-based database and device parameters reference / setting,
      trend / message display and basic data acquisition for diagnostics and
      analysis.

6.6.3 The tools shall provide schedule generation for communication of each
      fieldbus segment.

6.6.4 Each Fieldbus I/O Module shall be able to support more than one segment and
      each segment should support no more than 32 blocks.

6.6.5 Each Fieldbus I/O module shall be able to support 1:1 redundancy I/O module.

6.6.6 Redundant I/O module shall be used for all Foundation Fieldbus I/O.

6.6.7 Database documentation function shall support the Fieldbus configuration.

6.6.8 DCS shall support PID algorithm implanted in the DCS control module as well
      as PID algorithms embedded in Fieldbus devices.

6.6.9      DCS shall provide standard faceplate for PID algorithm embedded in
           Fieldbus devices. The faceplate shall have same look and feel of standard
           DCS based PID block.

6.6.10     Virtual test function for the Fieldbus loops shall be available to check the
           integrity of the configured Fieldbus function blocks without the presence of
           actual field devices.

6.6.11     DCS shall also support Plant Asset Management software that can
           integrate with the DCS system.
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6.6.12     Diagnostic software packages for Foundation Fieldbus devices should be
           able to plug-in to the Plant asset management software for maintenance
           diagnostic functions.

6.7      System Communication Requirements

6.7.1 The DCS system communication network shall be fully redundant with
      automatic changeover upon failure of the active path. Manual changeover
      facilities shall also be provided.

6.7.2 The redundant/secondary communication path shall either be used
      continuously or checked at least once per minute to ensure correct operation.
      Status changes shall be alarmed at the operator workstations.

6.7.3 The system shall support Fast Ethernet and/or fibre optic communication
      cables. However, all outdoor communication cables shall be fibre optic via
      diverse routes.

6.7.4 Differences between the primary and secondary communication cable lengths
      shall be minimised so as not to affect the DCS communication system
      operation. The vendor shall advise maximum allowable length discrepancy.

6.7.5 The system shall support redundant Modbus serial and TCP/IP based links.

6.8      Data Storage, Backup and Restoral Requirements

6.8.1 The data storage system shall be fully redundant and sized sufficiently to
      cope with all historical data collection requirements. The storage system shall
      be RAID 5 configuration.
6.8.2 Data on the RAID storage array that has “aged” sufficiently, shall be
      automatically archived onto optical disk media. Upon the successful data
      archive, the system shall clean up the data in the storage disk.
6.8.3 Data archiving and clean up shall be completely automated with no need for
      user interaction except for media replacement.
6.8.4 The system shall perform an incremental backup monthly for entire disk
      system, including program files and system files for all operator workstations,
      engineering workstation, and Long time trend and log server to Optical media.

6.9      System Cabinet Requirements

         The system cabinets shall be used Rital or equivalent and comply with the
         following requirements:

           -   Cabinets to be free standing and constructed taking into account
               delivery and installation requirements (multi-pin plug and sockets shall
               be used between shipping breaks e.g. Elco plugs)

           -   Cabinets to be mounted on sub-floor mountings suitably designed to
               withstand normal plant vibrations
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          -   Overall cabinet dimensions to be 2100mm high x 800mm wide and
              800mm deep with double front and rear removable and lockable hinged
              doors

          -   Cabinet protection class IP 30 minimum

          -   Cabinet finish to be smooth and follow the colour table below;



                  Description            Muncell code      RAL colour    Finish

                          Exterior       7.5GY 7/2         7032          Semi gloss

                  Panel   Interior       7.5GY 7/2         7032          Semi gloss

                          Channel base   7.5GY 7/2         7032          Semi gloss



          -   Separate and isolated cabinets earthing connections shall be provided
              as follows:

              •    Safety earth (cabinets and steelwork)

              •    Signal earth (cable screens and signal common)

          -   The cabinet layouts are to allow full and easy access for installation and
              maintenance requirements

          -   Cable access shall be bottom entry via suitable cable clamping
              mechanisms

          -   Utility power supplies shall be provided separated from UPS such as
              conventional type receptacles, fluorescent Lighting.

6.10     System Wiring Requirements

6.10.1 All wiring inside cabinets shall run in dedicated plastic ducts or wireways, or
       neatly loomed and secured with plastic spiral wrapping or tie-wraps and
       anchors.

6.10.2 All discrete wiring shall be single core with sufficient current carrying
       capacity. A minimum core size of 0.5 mm² shall be used unless otherwise
       stated.

6.10.3    Wireways/ducting shall be routed to provide sufficient segregation between
          AC and DC wiring and will be able to accommodate 30% more wiring.

6.10.4    System card bins shall be interconnected with plug and socket type system
          cables or ribbon type cables and edge connectors. The sockets and both
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           ends of the cables shall be labelled with the “Origin” and “Destination”
           tags.

6.11       Other System Requirements

6.11.1     Marshalling cabinets shall be provided         with   an   identical   outward
           appearance to the system cabinets.

6.11.2     Within the marshalling cabinets the incoming field multi-pair cables shall
           terminate either sequentially onto terminals or directly onto the IS barrier
           terminals. The output side shall be connected to the system I/O termination
           units or to Elco sockets where no I/O termination units are available.

6.11.3     The DCS VENDOR’s system cabling or pre-made and tested system cables
           with Elco plugs shall be used to connect to the DCS system cabinets.

6.11.4     The Plant Information Management System (PIMS) shall be configured to
           record all Operation Logs, reports, process/system alarms and shall have
           the facility to print any of the logs, reports or alarms on demand using a
           Network Laser printer also supplied with the System. The PIMS shall be
           equipped with Alarm and event analysis software. This software shall
           provide the tools and be configured to allow PTT to analyze the alarm and
           event in the system in all aspects. The detail requirements for the PIMS are
           specified in the related specification

6.11.5     Long Term Historical Data Recording Package and server.

           The DCS vendor shall provide the server connected directly to the DCS
           network to store the historical long term trend and alarm/event log for 14
           days

           The System as a minimum shall be able to keep data such as PV, MV, SV,
           Operator actions, System alarms, Process Alarms etc in the Long term
           historical data recording package. The System shall have the facility to
           select the data required to be put in the Long term historical package and
           to display their trending in any selective time span. Any Operator station
           can access this database via System data highway and intuitive graphical
           interface displays.



7.0      FUNCTIONAL REQUIREMENTS

7.1      Process Control and Data Acquisition Requirements

7.1.1 The system process control functions shall be performed by predefined
      algorithms with configurable parameters and shall, as a minimum, include the
      following:

           -   Control algorithms such as PID, ratio control, gap control, etc.

           -   Computational algorithms such as addition, subtraction, etc.
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         -   Logic algorithms such as “AND”, “OR”, Set/Reset, etc.

7.1.2 Sequential, timed and computational control programmes shall be supported
      via a high level programming language. The following typical functions shall
      be supported:

         -   Expressions such as “Equal To”, Not Equal To, etc.

         -   Mathematical functions

         -   Timer related functions

         -   Counter/Pulse related functions

         -   Logic type functions

7.1.3 The system shall also support logic control programmes where the
      grouping/linking of various logic functions shall provide the required
      functionality. The programming shall be done via function block. The
      following typical functions shall be supported:

         -   Logic functions such as “AND”, “OR”, etc.

         -   Timer related functions

         -   Counter/Pulse related function

7.2   Graphic Display Requirements

7.2.1 Graphic displays can be divided into “standard” and “custom” types. The
      custom graphic display details a schematic presentation of the station at
      different levels, from overview level right through to equipment detail level.
      The standard graphic displays provide the operator with a standard format for
      displaying information and are configurable and normally accessible from
      dedicated function keys.

7.2.2 The graphic displays, together with the keyboards shall provide a complete
      window to the station for all control and monitoring requirements.

7.2.3 The real time data within these displays shall be automatically updated
      without the need for operator action with a configurable refresh rate of four
      seconds or less.

7.2.4 The following standard type of graphic displays shall be provided and
      accessible from dedicated function keys:

         -   Loop (Faceplate) Displays. The loop display shall contain, in engineering
             units and bargraph format, the process variable, set point and loop
             output values. In addition, all control and configuration parameters
             including tuning constants shall be displayed. All adjustable parameters
             shall be changeable from within the display.
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         -   Group Displays. Predefined and operator configurable group displays
             shall consist of approximately eight loops displayed in similar format as
             in Loop Displays. Configuration parameters shall not normally be
             changeable from within this display.

         -   Trend Displays. Both historical and real time trend displays shall be
             available for any variable point. Trend displays shall be able to
             accommodate at least eight different points simultaneously in different
             colours.

         -   Alarm Displays. Alarm displays shall contain the alarm summary in
             chronological order and alarm groups for the configurable plant
             area/group.

         -   System Diagnostic Displays. Diagnostic displays shall be specially
             designed to facilitate system maintenance and shall, as a minimum, list
             all the system devices, including communication systems and their
             associated status. System maintenance functions such as module
             restarts/switchovers, accepting errors, etc. shall be actioned from this
             display.

7.2.5 The system shall support a powerful and flexible custom graphic display
      capability which shall include, as a minimum, the following:

         -   Hierarchical display relationship for ease of movement

         -   Display capacity of at least 200 dynamic elements per graphic including
             calculated values

         -   Symbolic presentation of data by means of change in colour/shape
             and/or flashing

         -   Configurable data/numeric format including colour

         -   Unique colour combination display capability for multi-state devices

         -   Suppression of inactive status messages and/or alarms

         -   At least two different text/data sizes

         -   Movement of displays from one screen to another

7.2.6 The system shall contain custom graphic pages to display the status of all
      inputs and outputs to / from the SIS system and package equipment control
      systems such as compressor train etc., in the ESD hierarchy format for the
      shutdown. These graphics shall include a first out alarm display such that the
      first in a series of trip initiators can be easily identified.

7.2.7 The system shall contain custom graphic pages to display the status of all
      inputs and outputs to / from the package equipment control systems, such as
      compressor train in the sequential format for the compressor start up
      sequence or the other operation.
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7.2.8 The system shall support X-windows technology which shall, as a minimum,
      provide the following added features:

         -   Displaying data from other X-window devices connected to the
             DCS/workstation

         -   Displaying multiple sets of data on a single screen

         -   Display resizing, repositioning including reduction to icon size

         -   Running other standard software packages such as Microsoft Office
             etc.

7.2.9 The customized graphic displays shall include the displays and interface for all
      process, SIS, package equipments, Fire& gas, utilities, Fire suppression,
      electrical systems and any other systems interfacing to the DCS.

7.3    Alarm and Event Management Requirements

7.3.1 The alarm management system shall be a fully configurable system capable of
      processing all alarms in an appropriate manner to maximise the information
      provided, but to minimise the number of alarms displayed.

7.3.2 In order to minimise the number of alarms, grouping, suppression and/or
      filtering techniques shall be available. Suppressing and/or filtering of alarms
      shall include:-

         -   Automatic suppression of individual and/or groups of alarms based on
             the occurrence of a preselected alarm or event.

         -   Automatic disabling of alarms based on the associated equipment
             running status.

7.3.3 Each alarm point shall be capable of being configured to at least three
      different alarm priority levels in order to discriminate between critical and non-
      critical alarms.

7.3.4 Each alarm shall activate an audible and visual alarm at the configured
      operator console. The alarm shall be displayed on the alarm summary and on
      the respective graphic displays. In addition, each workstation screen shall
      display a warning that a point is in an alarm state including the number of
      unacknowledged alarms.

7.3.5 Once the alarm has been acknowledged :-

         -   The alarm shall change from flashing to steady state.

         -   The audible alarm signal shall be silenced at all the assigned consoles.

7.3.6 Once the alarm returns to the normal state:-

         -   The alarm shall be removed from the alarm summary (if acknowledged).
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         -   The displays shall return to normal.

7.3.7 All alarms and first out alarms from other machinery packages, Safety
      instrumented System, electrical systems, machine monitoring system, and fire
      and gas systems shall be time stamped with a resolution of at least one
      second. Both the alarm occurrence and acceptance times shall be recorded.

7.3.9 All alarms and associated information shall be stored on the mass data
      storage medium for historical purposes.

7.3.10 Deleted

7.3.11 The system shall support a sequence of event capability either as part of the
       alarm management system or in a similar format and/or presentation. The
       sequence of event shall acquire the event from the SIS, package
       equipments, electrical systems, machine monitoring system and Fire & Gas
       system. The time stamping of the sequence of event signals shall be carried
       out in the DCS when hardwired directly to the system or when time
       stamping is carried in another system, the signals, with the time stamping
       information, shall be transmitted to the DCS and/or sequence of events
       recorder. In either way, the time stamping resolution shall be 1 milliseconds
       or less.

        The contractor shall purpose in his bid how the time stamp for the package
        equipment will be achieved.

7.3.12 The system shall automatically record the following events information and
       store in the historical database in long term trend and historical server and
       PIMS.

        period of occurring

        tag name

        tag description

        event type

        system generating alarm/event

        Process Events : Points going in and out of alarm, Points changing state, ,
        Sequence of event records

        the action of the operator,

        command from the systems/logic

        configuration changes

        response from the filed devices whether commanded or uncommanded state
        change
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        other events generated by the systems interfacing with the DCS system.
        The information for the event generated by other system shall contain the
        same information as generated by the DCS.

7.3.13 The system shall provide the capability for the alarm and event filtering. The
       operator shall be able to filter the interested alarm and event list based on
       the following

        period of occurring

        tag name

        tag description

        event type

        system generating alarm/event

        The intuitive graphical displays shall be provided for the filtering operation.

7.3.14 The sequence of event facility shall allow reports to be displayed or printed
       automatically and/or on demand.

7.4    Data Collection and Trend Requirements

7.4.1 All measured and calculated variables shall be stored as follows:

         -   1 second snapshots for 14 days

         -   1 minute average for 14 days

7.4.2 The system shall perform the data aggregation for the data mention in 7.4.1
      and store in the per the following

         -   1 hour averages for 1 month

         -   Daily averages for 1 year

         -   Monthly averages for 2 year

        The vendor may purpose to PIMS to perform this functions.

7.4.3 The system shall support both real time and historical trend facility at any
      workstation. Each trend shall consist of the plotted trend graph and a table
      containing the trend parameters. The point’s engineering units shall be
      displayed on the vertical axis and the time scale on the horizontal axis. If
      more than one point is displayed, the vertical axis shall be in percentage or
      displayed in the multiple vertical axis.

7.4.4 Real time trends shall be available for all measured and calculated variables in
      similar time scales with a 1 second sampling time. This is expected to cater
      for approximately 2000 points.
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7.4.5 Historical trends shall be available for any of the recorded variables at the
      specific sampling time per 7.4.2.

7.4.6 The system shall provide the intuitive graphical display for the operators to
      customize the required trend set. The operator shall be able to select the
      following the parameters to be display in the trend.

      Tag name/ID

      Type of data such as second, 1 minute average, hourly average, daily
      average,

      Period of data

      The operator shall be able to save the new configured trend set in the system.

7.5   Deleted

7.6   Deleted

7.7   System Diagnostic Requirements

7.7.1 The system shall include a full diagnostic facility which shall intelligently
      identify all system faults and failures to ensure a fully operable system is
      maintained.

7.7.2 The system shall generate the alarm and log the event when detecting the
      faults.

7.7.3 The system shall display the location of the fault components in the graphical
      displays.

7.8   System Clock and Synchronization
7.8.1 The clock source shall be a GPS based clock source. This shall be provided by
      a GPS receiver and all necessary software and interfaces to retrieve the GPS
      clock data into the DCS system.
7.8.2 The DCS shall then distribute the clock information to the SIS, Fire & Gas
      system, utility control systems, Electrical systems, Compressor Unit Control
      Panels, Master performance, Load sharing and Anti surge controllers and any
      other system controllers connected to the DCS.
7.8.3 The DCS shall distribute the clock to the DCS and SIS systems provided by
      the FTPP contractor.
7.8.4 Clock updates shall be performed a minimum of once per day and shall not be
      scheduled during or near end of day rollover times or other critical periods in
      the day.
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8.0    Engineering, Detailed Design and Implementation
8.1    General
3.1.1 The contractor and vendor shall be responsible for the engineering, detailed
      design and configuration of the DCS system.

3.1.2 The engineering, detail design and implementation shall be performed by the
      DCS vendor in Thailand.

3.1.3 Work included shall be configuration and customization of all DCS databases
      (real-time and historical) and HMI displays and reports.

3.1.4 Custom programming required to implement functional requirements that are
      not available in the core DCS system package shall be included. The result of
      all custom programming specific to the project shall belong to PTT and source
      code shall be included.

3.1.5 Detailed design shall be an interactive process involving working closely with
      PTT engineering and operations team. The contractor and vendor shall make
      allowances for performing the work in this manner and shall allow for multiple
      iterations of design submittal, review, comments for changes and redesign.
      The vendor shall provide the office space for three PTT personnels during the
      engineering, detail design and Factory Acceptance Test phases.

8.2    Database Configuration and Population
8.2.1 Detailed design shall include complete configuration of each of the DCS
      databases and populating them with data based on the information on the
      project P&ID and process / instrument datasheets.

8.2.2 This work shall include configuration of alarm limits, alarm actions and data
      archiving rate for each DCS database point.

8.2.3 The DCS database point shall also include the data of the other systems
      which interface with the DCS.

8.3    Graphical Displays
8.3.1 The contractor and vendor shall design and implement all DCS graphical
      display screens

8.3.2 The displays shall be designed to allow simple and efficient maneuvering from
      one display to the next in a structured hierarchical flow.

8.3.3 The DCS system is expected to be supplied with a number of vendor standard
      displays (such as database summaries, system status summaries, etc.) shall
      serve as the starting point for customization, as required based on PTT
      requirements.

8.3.4 The contractor and vendor shall allow for creation of at least 500 displays.

8.3.5 PTT shall be consulted regarding the conventions for the use of colors and
      other attributes for denoting the various states of a signal.
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8.3.6 CONTRACTOR shall choose simple to understand icons and symbols that are
      sufficiently large to be clearly visible.

8.3.7 Screens shall be kept as uncluttered as possible



9.0    INSPECTION AND TESTING
9.1    General
3.1.6 PTT reserve the right to carry out inspections at any time during construction
      of the Contractor's or Sub Contractor's work.

3.1.7 The Contractor shall supply all calibration, test, and simulation equipment that
      are required to demonstrate correct operation of the system. Certificates of
      the test equipment shall be traceable to National Standards.

3.1.8 Calibration, test, and simulation equipment shall be used at pre-
      commissioning, commissioning, and site testing. During the commissioning
      and testing period the Contractor shall ensure that all equipment is maintained
      in calibration.

3.1.9 All calibration, test, and simulation equipments, used during the Site Accept
      Test and commissioning, shall be handed over to PTT after the completion of
      the commissioning and testing period. Current test certificates for all
      calibration equipment shall be supplied and included as part of the official test
      results.

3.1.10 If, for any reason, PTT waives any part of the inspection, this does not relieve
       the Contractor and vendor of the responsibility to effect repairs at their own
       expense to any defects found later, including within the guarantee period.

3.1.11 The Contractor and vendor shall submit to PTT a complete test schedule and
       procedure for the Factory Acceptance Test and the Site Acceptance Test at
       least two months prior to each test being performed.

3.1.12 The Contractor and vendor shall provide two copies of hand-written test
       reports at time of inspection. Four copies of typewritten official certificates
       complete with all necessary details shall be supplied to PTT for approval
       within one week after test completion. The results of all tests and checks are
       to be recorded in the form of a Test Certificate, copies of which shall be
       supplied to PTT.

9.2    Factory Acceptance Test (FAT)
9.2.1 The FAT procedures shall be submitted to PTT for approval at least two
      months in advance of any testing. The FAT procedure must be agreed in full
      by PTT prior to commencement of any testing.

9.2.2 The Contractor and vendor shall supply all test, simulation, and other
      equipment necessary to perform the FAT. The simulation equipment shall be
      able simulate the AI, DI, and the status of the output from the DCS such as
      AO and DO.
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9.2.3 The test and simulation equipments shall allow the test of all provided Field
      Control Stations simultaneously. This means that the FAT shall be able to
      demonstrate the functions and performance of the DCS system as the real
      operating conditions.

9.2.4 The Contractor shall perform the following tests as a minimum during FAT:

             •      Visual Inspection: All equipment shall be checked for conformity
                    with the approved drawings and with the contract/vendor
                    documents.

             •      Hardware Functional Tests: Sub-system tests shall be
                    performed on any equipment provided by the vendor. The
                    equipment shall be tested for correct configuration,
                    functionality, and fault handling.

             •      Software Testing: Software tests shall be performed to
                    demonstrate the satisfactory operation of the software. Testing
                    shall include:

                           i)      Telemetry I/O processing, speed, and accuracy

                           ii)     Display operation and performance

                           iii)    Application software

                           iv)     Alarm handling

                           v)      Database configuration

                           vi)     Logging facilities

                           viii)   System utilities

                           ix)     Historical data collection

                           x)      Logic

                           xi)     Links to the other systems interfacing with the
                                   DCS

                           xii)    Any other test required to demonstrate that the
                                   provided DCS system complies with this
                                   specification.

9.2.5 The vendor shall perform the system integration test with the OCS# 4 SIS,
      FTPP DCS& SIS, all operator workstations, PIMS and PRM online.

9.2.6 The vendor and contractor shall use the emulator to simulate the interface
      between the DCS and other package equipments and electrical system for the
      FAT.
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9.3   Site Acceptance Test (SAT)
9.3.1 The SAT procedures shall be submitted to PTT for approval at least two
      months in advance of any testing. The SAT procedure must be agreed in full
      by PTT prior to commencement of any testing.

9.3.2 The Contractor shall supply all test, simulation, and other equipment
      necessary to perform the SAT.

9.3.3 In general the SAT shall follow the same procedure as the FAT except the I/O
      signals shall be live.

9.3.4 The vendor shall perform total system integration test which includes the
      interface and function with the following systems online.

             FTPP DCS

             FTPP SIS

             Motor Driven Compressor UCP

             Compressor Master Performance, Load Sharing and Antisurge
             controllers

             Instrument Air Package

             Fire Water Pump Package

             Fire and Gas Control Panels

             Emergency Diesel Generator

             Deluge Skid

             Machine Monitoring System

             Electrical switchgear and MCC

9.4   Performance Test
9.4.1 The system shall undergo a thirty day performance test after completion and
      acceptance of all SAT’s and correction of any deficiencies noted. This thirty
      day performance test shall be in line with the 30 day continuous run of the
      OCS# 4 station,

9.4.2 The performance test procedures shall be submitted to PTT for approval at
      least two months in advance of any testing. The procedure must be agreed in
      full by PTT and all punch list items must be satisfactorily completed prior to
      commencement of any testing.

9.4.3 During the thirty day performance test the system shall operate without a
      major error. Should a major error occur, the test will be stopped, the error
      corrected, and the thirty day test restarted at day one.
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9.4.4 The Contractor shall notify PTT in writing when the repairs have been
      completed, along with a detailed explanation identifying the problem and
      corrective action taken.

9.4.5 PTT shall have full access to the system during the thirty day test, and all
      normal operations shall be performed. Normal operations include polling,
      calculations, display of data, trends, and reports, as well as the addition or
      modification to any of the above.

9.4.6 Should any abnormal event occur during the thirty day test the contractor and
      vendor shall immediately investigate the event to determine a cause , correct
      the problem and submit a report to PTT. The report shall state whether in the
      opinion of the contractor the event is a major error or not, and the reasons for
      such a conclusion.

9.4.7 During investigation of any abnormal event the Contractor shall continue to
      make all tests and measurements as required by the performance test
      procedure. The report shall be submitted to PTT within three calendar days of
      the event. Failure to submit a report within the allotted time shall result in the
      event being declared a major error.
9.4.8 PTT will respond to an abnormal event report within three days; either
      accepting the report, requesting additional information, or rejecting it.
      Rejection of a report shall result in the event being declared a major error.


10.0   INSTALLATION AND COMMISSIONING
10.1   A minimum of thirty days prior to commencement of any installation work the
       Contractor shall provide a schedule detailing the dates work will be
       undertaken to PTT.
10.2   The Contractor shall provide a written plan detailing the work to be performed
       for the installation of the system. The site installation plan shall be submitted
       for approval by PTT a minimum of thirty calendar days prior to the
       commencement of any work.
10.3   No installation of commissioning work shall be started at any site until the
       Contractor has obtained PTT approval for the FAT results and PTT approval
       for the applicable ‘issued for construction’ drawings.
10.4   The Contractor shall be responsible for obtaining all necessary permits and
       permission to perform the required installation work.
10.5   The Contractor shall check the system as soon as it is installed at site to
       confirm the system is still fully calibrated and functional after shipment and
       installation.
10.6   The Contractor shall be required to maintain the commissioning team of the
       vendor on site to cover any failures during the commissioning period.
10.7   The Contractor shall supply on site software and hardware support expertise
       during commissioning of the system and during the complete thirty day
       performance test period from the DCS system vendor.
DISTRIBUTED                                                    SPC-0804.02-60.05
CONTROL SYSTEM          PTT PUBLIC COMPANY LIMITED             PAGE: 30 OF 31
SPECIFICATION            ENGINEERING SPECIFICATION             REV: D2

11.0   Deleted.


12.0   Documentation Requirement
       The Contractor and vendor shall provide the following documents in both
       hardcopy form (five copies) and electronic form on Compact Disk (three
       copies). The format of the document files shall be complied with the related
       PTT specification. The table of contents for each document shall be submitted
       to PTT for approval.
             (a)    Basic Data


             (b)    Design formulae and calculations


             (c)    Overall accuracy or uncertainty in measurement


             (d)    Outline of calibration and verification methods


             (e)    Network setup setup and troubleshooting


             (f)    Reliability details of all equipment


             (g)    Equipment details / drawings for all components


             (h)    Full software documentation


             (i)    Wiring diagrams, including loop drawings


             (j)    Terminal schedule including tag identifier and point description


              (l)   System or component installation drawings and details


             (m)    Equipment lists and data sheets


             (n)    Drawing index


             (o)    Factory acceptance test procedure
DISTRIBUTED                                                SPC-0804.02-60.05
CONTROL SYSTEM       PTT PUBLIC COMPANY LIMITED            PAGE: 31 OF 31
SPECIFICATION         ENGINEERING SPECIFICATION            REV: D2

           (p)   Site commissioning plan


           (q)   Site installation plan


           (r)   Site acceptance test procedure


           (s)   Thirty day performance test procedure


           (t)   System technical manuals


           (u)   Utility consumption data


           (v)   Comprehensive operation and maintenance manual which will

                 enable PTT personnel to operate and service the equipment

                 without reference to the Contractor


           (w)   Comprehensive spare parts list and priced quotation for three

                 years operation


           (x)   Functional design specification which shall describe the system

                 hardware and software from the user’s point of view


           (y)   Complete and revised version of the detailed design manual

                 which provides details on the implementation and configuration

                 of each software component

    The contractor and vendor shall submit the mentioned documents from item
    (a) to (n) and (x) to PTT for review and approve during the engineering phase.
    For the item (y), the vendor shall consult PTT for the document developing.
    The rest of document shall be submitted to PTT for review and approval
    according to the specification and the related system implementation phase.

				
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