Mp v Ds 40 009 Plc Operating Manual _ta 5447

PROJECT NAME:

MISURATA COMBINED CYCLE PROJECT

PO DESCRIPTION: SEA WATER DESALINATION PLANT

PO NO.: PU310-H1311

SUBJECT: PLC OPERATING MANUAL

DOCUMENT NO.:

MP-V-DS-40-009

CLIENT

PROJECT CONSULTANT

CONTRACTOR

SUB. CONTRACTOR

RCP doc. No.: TA - 5447

4

3

2

1

0 26 MAR. 2010 Issued for Approval E. Croci I.Resini L.Grisenti

Rev.

No Date Description

Prepared

by

Checked

by

Reviewed

by

Approved

by

It may NOT be used, disclosed or reproduced for other purpose pertaining to this document or its contents without

specific, written prior permission of Daewoo E&C Co., Ltd.

Issued for Approval


PLC OPERATING MANUAL MP-V-DS-40-009 rev.0 26.03.2010

RCP Doc. TA-5447 rev. 0

Sheet 2 of 52

1. Introduction ............................................................................................... 4

2. Simatic HMI WinCC ................................................................................... 4

3. Operator interface structure ..................................................................... 5

4. Supervision system ................................................................................... 6

4.1 Login / change access level ...................................................................................6 4.2 Logout / exit supervision ..7

5. Alarms interface description .................................................................... 8

5.1 Alarms interface management ....8 5.2 Active alarms collecting window ...........................................................................8 5.3 Alarms acknowledgement window........................................................................9

6. Historical trend management ................................................................. 10

7. Graphical interface description and functionality ................................. 12

7.1 Structure and access to a graphical page.12 7.2 Symbols, pop-ups, colours, buttons, selectors, arrows, pipes13 7.2.1 Symbols and pop-ups for analogue,digitals and PID.................. ...........13 7.2.2 Symbols and pop-ups for plant devices..................................................19 7.2.3 Other plant elements, buttons, checkboxes, selectors, arrows, pipes.25 7.3 Graphical Pages....................................................................................................27 7.3.1 Desalination Plant Overview Unit 1..........................................................27 7.3.2 Sea Water and Make Up Unit 1..................................................................28 7.3.3 L.P. Steam and Condensate Unit 1...........................................................29 7.3.4 Reject Section Unit 1..................................................................................30 7.3.5 Venting System Unit 1................................................................................31 7.3.6 Desalination Plant Overview Unit 2...........................................................32




Sheet 3 of 52

7.3.7 Sea Water and Make Up Unit 2...................................................................33 7.3.8 L.P. Steam and Condensate Unit 2............................................................34 7.3.9 Reject Section Unit 2...................................................................................35 7.3.10 Venting System Unit 2...............................................................................36 7.3.11 Chemical and Acid Cleaning System.......................................................37 7.3.12 Sea Water Feeding System.......................................................................38 7.3.13 Distillate Distribution System...................................................................39 7.3.14 Steam and Condensate.............................................................................40 7.3.15 Hardware Diagnostic.................................................................................41 7.4 Sequences and Permissives..................................................................................46 7.4.1 Permissives..................................................................................................46 7.4.2 Sequences....................................................................................................48 7.5 Emergency Shut Down...........................................................................................51 7.6 Trip Signals..............................................................................................................52




Sheet 4 of 52

1. Introduction This operator guide is conceived to be a handy quick help for the first approach to the supervision system. All supervision instruments, programming tools and features available with the WINCC are already described in Siemens Manuals.

Once the operator has got a basic knowledge of these manuals, this guide will introduce him how the system has been configured, how the WINCC features (graphic panels, alarms etc.) have been configured, programmed and combined to provide the monitoring and the control of the plant.

Nevertheless all the information that the operator will find on the screen is supposed to be enough to perform all operations such as giving commands to devices or observe the behaviour of different transmitters , this guide will be necessary just to take a little of getting used.

2. Simatic HMI WinCC Simatic HMI WinCC is a powerful HMI (Human Machine Interface) system witch allows an

abiding communication between the human part (the operator) and the machine part (the process), process witch in fact is realized and controlled by the automated system. WinCC combines both production and process automation - numerous references across any number of applications and branches of industry prove this. A large number of WinCC Options and Add-ons allows industry-specific solution, e.g. in pharmaceutical industry or water treatment applications.

The WinCC Project Development / Configuration Environment: to develop and configure projects, special editors are provided that can be accessed from the WinCC Explorer. With each editor, a specific subsystem of WinCC is configured.

The major subsystems of WinCC are: Graphics system - the editor for creating the screens is the Graphics Designer. Alarm system - the editor for configuring the alarms is named Alarm Logging. Archiving system - the editor for specifying the data to be archived is named Tag Logging. Report system - the editor for creating the report layouts is the Report Designer. Communication system is configured directly in the WinCC Explorer. All configuration data is stored in the CS database.

The WinCC Runtime:

With the runtime software, the operator can run and monitor the process. In particular, the runtime software has the following tasks: Reading data stored in the CS database. Displaying of the screens. Communication with the automation systems. Archiving of the current runtime data such as process values and alarm events. Running of the process, e.g. through specified set-points or activation/deactivation.




Sheet 5 of 52

3. Operator interface structure The operator assigned to the main control shall perform the following activities:

Prepare the machine Survey the process in order to guarantee the normal functioning of the machine. React to any equipment fault in order to avoid operator injuries and/or machine damaging. The

operator shall also react in order to minimize the lost production. Report to the maintenance personal any equipment bad functioning and alarms. In order to control and survey the machine, the operator shall use:

1. Main control desk commands and local boxes 2. Operator panels (if any is provided)

The HMI (Human Machine Interfaces) is an interface for the operator useful to control and supervise the machine. Each HMI pulpit is provided with computer unit, keyboard an monitor. In this way the operator is able to:

Watch to the plant status; Prepare the machine; Perform commands or activate operating sequences; Change process set-points; Manage the alarms (display, identify, print); Check the trend of the process main variables.




Sheet 6 of 52

4. Supervision system

4.1 Login / change access level

When the supervision is started, the WinCC application demands that a valid user and the corresponding password are inserted in the checkbox, as shown in the pictire below:

A WinCC application can provide to the user different levels of access each level of access defined by a specific password, in this way the operators that manage the plant will have permission to different commands or an only see action.

In this case there will be 3 access levels:

OPERATOR: all START / STOP commands to plant devices, but cant change parameters neither alarm set points.

ENGINEER: all START / STOP commands to plant devices, change loop parameters and alarm set points.

SOFTWARE ENGINEER: controls everything from commands given to plant devices, to software modifications and also can deactivate WinCC Runtime project supervision.

The operator can also perform the LOGIN command or can change the access level clicking this checkbox which also indicates the user logged to plant supervision.




Sheet 7 of 52

4.2 Logout / exit supervision

The operator can perform the LOGOUT command by clicking the same button from witch he can change the access level or the PASSWORD button as shown in the pictures below:

LOGOUT BUTTONS

Password button

When any of these buttons are clicks the LOGOUT BUTTON from the main checkbox became

active and the operator can perform the logout command as shown in the picture below:

The operator, if he has the permission (in this case SOFTWARE ENGINEER), he can deactivate the WinCC supervision by following the next actions described also with the pictures shown below:

- click on EXIT RUNTIME button:

- click on DEACTIVATE button on the pop-up confirmation window that will appear as shown in the picture below:

NOTE: remember that the operator can deactivate the WinCC supervision only if he is logged in with the access level SOFTWARE ENGINEER.




Sheet 8 of 52

5. Alarms interface description

5.1 Alarms interface management

The alarms interface management is achieved by an alarm Scheduler task that reads the alarms coming from the PLC and archives them; it also manages the active alarms queue as the acknowledgement and manages the other requests. The alarms list is managed by the Server task; this allows a centralized acknowledge management. When a supervisor acknowledges an alarm, the operation is archived and communicated to every supervisor that shows the alarms.

The background colour of the alarms depends on the Priority of the alarm: - Priority 0: system message -> black; - Priority 3: process message -> yellow; - Priority 5: process message -> red.

The alarm interface is composed of two windows: the active alarm collecting window and the alarm that have been acknowledged by the operator

5.2 Active alarms collecting window

The page can be accessed by clicking this button:




Sheet 9 of 52

5.3 Alarms acknowledgement window

The page can be accessed by clicking this button:

In these windows the operator can observe various informations regarding the alarms such as: - Date: alarm activation date; - Time: alarm activation time;

- Priority: alarm priority;

- Source: alarm coming in PLC;

- Event: description of the alarm;

- Comments: device where the alarm occurred;

- Tag: tag of the device where the alarm occurred;

- Status: status of the alarm critical, warning, process value;

- Type: type of alarm low, high, warning;




Sheet 10 of 52

6. Historical trend management The operator can observe the behaviour in time for every analogue measure of the plant here

included: single analogue, 1 out of 2 analogue measures or if there are present 2 out of 3 analogue measures. By clicking on the box of an analogue measure the pop-up window associated will appear like shown in the picture below:

Single analogue measure box

The click on button will expand the pop-up of the analogue measure and the operator will observe the behaviour of the analogue measure as shown in the picture below:

The click on button will reduce the window to her first appearance.




Sheet 11 of 52

For 1 out of 2 analogue measures or for 2 out of 3 analogue measures the operator can see all the curves in the same chart as well as the average curve of the 2 or 3 channels present for the analogue measure checked by the operator. An example is shown in the picture below:

1 out of 2 analogue measures box

The click on button will expand the pop-up of the analogue measure and the operator will observe the behaviour of the analogue measure as shown in the picture below:

The click on button will reduce the window to her first appearance.




Sheet 12 of 52

7. Graphical interface description and functionality

7.1 Structure and access to a graphical page

The available functions and information are organized after a dedicated structure of WinCC as shown in the picture below, where the operator can easily access a page from the project:

Workspace

Alarm page Last alarm

Toolbar

Acknowledge alarm Trip signals Change page Unit alarms

Unit 2 Sequence Status

Unit 2 Trip signals

Units




Sheet 13 of 52

7.2 Symbols, pop-ups, colours, buttons, selectors, arrows, pipes

7.2.1 Symbols and pop-ups for analogue measures, digital signals and PID

Analogue measures Symbol:

By clicking on this checkbox, a pop-up window will appear from where the operator can

visualise or do many things regarding the analogue measure as shown in the picture below: Here the operator can view and manage:

button for visualising the behaviour of the analogue signal;

button for acknowledge the alarms of the signal;

button for customize or enable / disable thresholds only if the operator has the level access;

- Normal - Warning - Critical: status of alarm.

An analogue measure pop-up with all his features can be visualised in the picture below:




Sheet 14 of 52

Also for an analogue measure 1 out of 2 the operator can see all thee signals including the average measure, and if he has the level access he can enable or disable one of the signals as shown in the picture below:

Class, condition, colours:

Depending on the status of the alarm the checkbox of the analogue measure can change the colour and flash as shown in the table below:

Analogue value states:




Sheet 15 of 52

Digital signals

Depending on the status of the digital signal we have two symbols: the digital signal can indicate an alarm (level, pressure, flow alarm), alarm as a fault by a device in field or the digital signal can provide to the user an information about a device (open or close). The operator can identify the digital signal as show in the images below:

Symbols:

Examples of pop-ups for digital signals are represented in the images below:

In case that the digital signal represents an alarm the operator has the possibility to

acknowledge the alarms by clicking the button.




Sheet 16 of 52


Depending on the status of the alarm the checkbox of the digital signal can change the colour and flash as shown in the table below:

Digital signal states:




Sheet 17 of 52

PID (Loop signals)

Symbol:

Pop-up:

If the operator clicks on the loop symbol the pop-up associated will appear as shown in the picture below:

In this pop-up the operator can view various information about the PID like process value, set point, output value, if the PID is in tracking mode, if the ramp in ON or OFF, but also can choose the modality how the PID works:

- AUTO: automatic mode; - MAN: manual mode; - OVERRIDE: override mode from logic (operator can give all commands ignoring all conditions, this is a dangerous situation and the operator must have permission and he must be sure he can choose this mode in the safest way possible); - OPER: operator mode; - CASC: cascade mode; - EXTERNAL: external mode.

With a click on the button the pop-up of the loop signal will expand as shown in the image below:

Here the operator can customize, if he has the

permission, various parameters of the loop signal such as: - Gain; - Integral Time; - Derivative Time; - Dead Band: - Set Point HI (high); - Set Point LO (low); - Set Point Rate; - Set Point Rate Time Base; - Control Output Rate; - Max Deviation Ramp; - Deviation Hysteresis.




Sheet 18 of 52

With a click on the button the operator will expand at maximum the pop-up of the loop signal as shown in the picture below:

The operator can now visualise the trend of the loop signal with its three values: Process value, Set Point and Output.

By clicking on the button the pop-up of the loop signal will reduce size to its initial state.




Sheet 19 of 52

7.2.2 Symbols and pop-ups for plant devices (valves, motors, pumps) Valves (on-off valves, motorized valves, solenoid valves, control valves)

The symbols, states (close, open, fault, unavailable) as well as functionality modes (automatic, manual, override) for valves are shown in the pictures below:

Symbols:

Faceplates:

ON / OFF valves Motorized valves

In the faceplates the operator can observe in the upper the name of the device as well as the tag, for ON / OFF valves he can also the initial state of the valve NO (Normally Open) / NC (Normally Close).There are present also the command buttons CLOSE / OPEN, as well as other buttons as RESET, LOCK / UNLOCK, AUTOMATIC / MANUAL, OVERIDE.

Normally Open / Normally Close indication;

Reset button to reset the logic of device in case of fault;

/ Used by operator to Lock / Unlock a plant device;

/ Manual / Automatic mode from logic.




Sheet 20 of 52

For the on - off valves the faceplate contains also the following elements:

Button for Override mode from logic: (operator can give all commands ignoring all conditions, this is a dangerous situation and the operator must have permission and he must be sure he can choose this mode in the safest way possible);

Indications of the feedbacks of the valve (Feedback Open / Feedback Close).

With a click on the button the operator will expand the faceplate of the valve as shown in the picture below:

Here the operator can observe a list of states and alarms regarding the valve in cause and also

he can insert (if he has the access level) a delay time until the valves opens or closes or the other way doesnt opens or doesnt closes. This can be done with the help of the boxes shown in the picture below:

By clicking on the button the faceplate of the valve will reduce size to its initial state.




Sheet 21 of 52


- VALVE OPEN: GREEN; - VALVE CLOSE: RED; - VALVE FAULT / UNAVAILABLE: YELLOW.

Examples of the states of valves are shown in the picture below:

- control valves:

- motorized, solenoid valves:

- pneumatic valves:




Sheet 22 of 52

Motors and pumps

The symbols, states (run, stop, fault, unavailable) as well as functionality modes (automatic, manual, override) for motors and pumps are shown in the pictures below:

Symbols:

Faceplates:

With a click on any of the symbols on the left side a pop-up window will appear as shown on the right side:

In the faceplates the operator can observe in the upper part the name of the device as well as

the tag. There are present also the command buttons CLOSE / OPEN, as well as other buttons as RESET, LOCK / UNLOCK, AUTOMATIC / MANUAL, OVERRIDE:

Reset button to reset the logic of device in case of fault;

/ Used by operator to Lock / Unlock a plant device;

/ Manual / Automatic mode from logic.

Button for Override mode from logic: (operator can give all commands ignoring all conditions, this is a dangerous situation and the operator must have permission and he must be sure he can choose this mode in the safest way possible).




Sheet 23 of 52

With a click on the button the operator will expand the faceplate of the motor as shown in the picture below:

Here the operator can observe a list of states and alarms regarding the motor in cause and

also he can insert (if he has the access level) a delay time until the motor starts or stops or the other way doesnt starts or doesnt stops. This can be done with the help of the boxes shown in the picture below:

By clicking on the button the faceplate of the motor will reduce the size to its initial state.




Sheet 24 of 52


- MOTOR OPEN: GREEN; - MOTOR CLOSE: RED; - MOTOR FAULT / UNAVAILABLE: YELLOW.

Examples of the states of motors are shown in the picture below:

- centrifugal pumps:

- dosing pumps:

- motors:




Sheet 25 of 52

7.2.3 Other plant elements, buttons, checkboxes, selectors, arrows, pipes

Tanks

Examples of tanks that the operator can observe in the supervision are shown in the pictures below:

Buttons, checkboxes, selectors

An example of a button as well as the pop-up and the reconfirmation popup is shown in the pictures below:

In the pictures below the operator can observe in supervision buttons which are links to another page:

Also the operator can choose thru the selectors which plant device has priority to get in function as shown in the picture below:




Sheet 26 of 52

Arrows

Arrows have different colours depending on what part of the plant they represent. The arrows are also of two types as shown in the pictures below:

INFORMATION ARROWS WITHOUT LINK

INFORMATION ARROWS WITH LINK TO ANOTHER PAGE

Pipes

Pipes have different colours depending on what part of the plant its represent as shown in the pictures below:

Sea water - Green colour pipe: Steam - Red colour pipe: Condensate - Cyan colour pipe: Vent - Grey colour pipe: Chemical - Orange colour pipe: Air - Pink colour pipe:




Sheet 27 of 52

7.3 Graphical Pages

7.3.1 Desalination Plant Overview Unit 1

In this page the operator is able to see one overview containing the process pages with the most important instruments and controls. All the process pages are delimited with white dotted line and for better view, the operator is able to go in process pages using the corresponding buttons containing the pages titles or using the arrows in the corresponding area. The overview page contains the following process pages:

Sea Water and Make Up Unit 1 L.P. Steam and Condensate Unit 1 Reject Condenser Unit 1 Venting System Unit 1 Chemicals and Acid Cleaning System Unit 1




Sheet 28 of 52

7.3.2 Sea Water and Make-Up Unit 1

The Sea Water and Make-Up Unit 1 page contains the followings control elements:

SEA WATER TO EVAPORATOR MOTORIZED VALVE - 90GCK16AA001 SEA WATER FILTER - 90GCK16AT001 BRINE COOLER - 90GCB11AC001 LEVEL CONTROL VALVE BRINE TO DISCHARGE - 90GCB12AA151 FLOW CONTROL VALVE SEA WATER TO DISCHARGE - 90GCK19AA151 MAKE UP PUMPS - 90GCJ10AP001/002 MAKE UP FILTER - 90GCJ11CE001 FLOW CONTROL VALVE MAKE-UP TO EVAPORATOR - 90GCJ12AA151 MAKE UP PREHEATER 7th EFFECT - 90GCJ17AC001 MAKE UP PREHEATER 4th EFFECT - 90GCJ13AC001




Sheet 29 of 52

7.3.3 L.P. Steam and Condensate Unit 1

The L.P. Steam and Condensate Unit 1 page contains the following control elements:

MOTORIZED VALVE L.P. STEAM TO EVAPORATOR - 90GCT10AA001 FLOW CONTROL VALVE L.P. STEAM TO EVAPORATOR - 90GCT10AA151 TEMPERATURE CONTROL VALVE DISCHARGE - 90GCC12AA151 CONDENSATE WATER PUMPS - 90GCC10AP001/002 LEVEL CONTROL VALVE - 90GCC11AA151 ON / OFF VALVES CONDENSATE TO WASTE - 90GCC11AA152/153 EVAPORATOR (EFFECTS 1-4) - 90GCG10AT001




Sheet 30 of 52

7.3.4 Reject Section Unit 1

The Reject Section Unit 1 page contains the following control elements:

DISTILLATE WATER PUMPS - 90GCD10AP001/002 BRINE PUMP - 90GCB10AP001 DISTILLATE WATER LEVEL CONTROL VALVE - 90GCD11AA151 DISTILLATE WATER TO TANK ON / OFF VALVE - 90GCD11AA152 DISTILLATE TO WASTE ON / OFF VALVE - 90GCD11AA153 EVAPORATOR (EFFECTS 5-9) - 90GCG10AT002




Sheet 31 of 52

7.3.5 Venting System Unit 1

The Venting System Unit 1 page contains the following control elements:

HIGH PRESSURE STEAM TO VENTING SYSTEM MOTORIZED VALVE -90GCT15AA001

STEAM TO HOGGING EJECTOR ON/OFF VALVE - 90GCT15AA153 STEAM TO 2ND STAGE EJECTOR ON/OFF VALVE - 90GCT15AA152 STEAM TO 1st STAGE EJECTOR ON/OFF VALVE - 90GCT15AA151 VENT TO 1ST AND 2ND STAGE EJECTORS ON / OFF VALVE - 90GCV11AA152 VENT TO HOGGING EJECTOR ON / OFF VALVE - 90GCV11AA151 1ST EJECTOR CONDENSER - 90GCV10AC001 2ND EJECTOR CONDENSER - 90GCV10AC002 1ST EJECTOR - 90GCV10BN002 2ND EJECTOR - 90GCV10BN001 HOGGING EJECTOR - 90GCV10BN003




Sheet 32 of 52

7.3.6 Desalination Plant Overview Unit 2

In this page the operator is able to see one overview containing the process pages with the most important instruments and controls. All the process pages are delimited with white dotted line and for better view, the operator is able to go in process pages using the corresponding buttons containing the pages titles or using the arrows in the corresponding area. The overview page contains the following process pages:

Sea Water and Make Up Unit 2 L.P. Steam and Condensate Unit 2 Reject Condenser Unit 2 Venting System Unit 2 Chemicals and Acid Cleaning System Unit 2




Sheet 33 of 52

7.3.7 Sea Water and Make-Up Unit 2

The Sea Water and Make-Up Unit 2 page contains the followings control elements:

SEA WATER TO EVAPORATOR MOTORIZED VALVE - 90GCK26AA001 SEA WATER FILTER - 90GCK26AT001 BRINE COOLER - 90GCB21AC001 LEVEL CONTROL VALVE BRINE TO DISCHARGE - 90GCB22AA151 FLOW CONTROL VALVE SEA WATER TO DISCHARGE - 90GCK29AA151 MAKE UP PUMPS - 90GCJ20AP001/002 MAKE UP FILTER - 90GCJ21CE001 FLOW CONTROL VALVE MAKE UP TO EVAPORATOR - 90GCJ22AA151 MAKE UP PREHEATER 7th EFFECT - 90GCJ27AC001 MAKE UP PREHEATER 4th EFFECT - 90GCJ23AC001




Sheet 34 of 52

7.3.8 L.P. Steam and Condensate Unit 2

The L.P. Steam and Condensate Unit 2 page contains the following control elements:

MOTORIZED VALVE L.P. STEAM TO EVAPORATOR - 90GCT20AA001 FLOW CONTROL VALVE L.P. STEAM TO EVAPORATOR - 90GCT20AA151 TEMPERATURE CONTROL VALVE DISCHARGE - 90GCC22AA151 CONDENSATE WATER PUMPS - 90GCC20AP001/002 LEVEL CONTROL VALVE - 90GCC21AA151 ON / OFF VALVES CONDENSATE TO WASTE - 90GCC21AA152/153 EVAPORATOR (EFFECTS 1-4) - 90GCG20AT001




Sheet 35 of 52

7.3.9 Reject Section Unit 2

The Reject Section Unit 2 page contains the following control elements:

DISTILLATE WATER PUMPS - 90GCD20AP001/002 BRINE PUMP - 90GCB20AP001 DISTILLATE WATER LEVEL CONTROL VALVE - 90GCD21AA151 DISTILLATE WATER TO TANK ON / OFF VALVE - 90GCD21AA152 DISTILLATE TO WASTE ON / OFF VALVE - 90GCD21AA153 EVAPORATOR (EFFECTS 5-9) - 90GCG20AT002




Sheet 36 of 52

7.3.10 Venting System Unit 2

The Venting System Unit 2 page contains the following control elements:

HIGH PRESSURE STEAM TO VENTING SYSTEM MOTORIZED VALVE - 90GCT25AA001

STEAM TO HOGGING EJECTOR ON / OFF VALVE - 90GCT25AA153 STEAM TO 2ND STAGE EJECTOR ON / OFF VALVE - 90GCT25AA152 STEAM TO 1st STAGE EJECTOR ON / OFF VALVE - 90GCT25AA151 VENT TO 1ST AND 2ND STAGE EJECTORS ON/OFF VALVE - 90GCV21AA152 VENT TO HOGGING EJECTOR ON / OFF VALVE - 90GCV21AA151 1ST EJECTOR CONDENSER - 90GCV20AC001 2ND EJECTOR CONDENSER - 90GCV20AC002 1ST EJECTOR - 90GCV20BN002 2ND EJECTOR - 90GCV20BN001 HOGGING EJECTOR - 90GCV20BN003




Sheet 37 of 52

7.3.11 Chemical and Acid Cleaning System

The Chemical and Acid Cleaning System page contains the following control elements:

ANTIFOAM DOSING PUMPS 90GCF11AP001 90GCF11AP002 90GCF21AP001 90GCF21AP002

ANTISCALE DODING PUMPS 90GCN11AP001 90GCN11AP002 90GCN21AP001 90GCN21AP002

ANTIFOAM TANK - 90GCF01BB001 ANTISCALE TANK - 90GCN01BB001 ANTIFOAM MIXER MOTOR - 90GCF01AM001 ANTISCALE MIXER MOTOR - 90GCN01AM001 HYDROCHLORIC ACID PUMPS FAULT - 90GCE01AP001/002 HYDROCHLORIC ACID TANK - 90GCE01BB001 HYDROCHLORIC ACID MIXER MOTOR - 90GCE01AM001




Sheet 38 of 52

7.3.12 Sea Water Feeding System

The Sea Water Feeding System page contains the following visuals elements:

CIRCULATING SEA WATER PUMPS FOR DESALINATION PLANT: RUNNING / STOPPED FEEDBACK - 90GCK11AP001 RUNNING / STOPPED FEEDBACK - 90GCK12AP001 RUNNING / STOPPED FEEDBACK - 90GCK13AP001 NON RETURN VALVE FOR DESALINATION PLANT: CLOSED / OPEN FEEDBACK - 90GCK11AP001 CLOSED / OPEN FEEDBACK - 90GCK12AP001 CLOSED / OPEN FEEDBACK - 90GCK13AP001 FLOW CONTROL VALVE POSITION FEEDBACK - 90GCK15AA151

This page contains also the command for START / SHUT down request of DESAL pumps and one Pressure Indicator (DESAL Sea Water Discharge Pump Pressure) - 90GCK14CP101.




Sheet 39 of 52

7.3.13 DistiIlate Distribution System

The Distillate Distribution System page contains the following visuals elements:

MOTORIZED VALVE TO DISTILLATE TANK OPEN / CLOSED FEEDBACK - 90GHA01AA001

DISTILLATE WATER STORAGE TANK - 90GCL10BB001 LEVEL INDICATOR OF DISTILLATE STORAGE TANK - 90GCL10CL101 FLOW INDICATOR - 90GHA10CF101 CONDUCTIVITY INDICATOR - 90GHA10CQ101




Sheet 40 of 52

7.3.14 Steam and Condensate

The Steam and Condensate page contains the following visuals elements:

MOTORIZED VALVE L.P. OPEN / CLOSED FEEDBACK - 90LBG65AA002 MOTORIZED VALVE H.P. OPEN / CLOSED FEEDBACK - 90LBG15AA002 MOTORIZED VALVE OPEN / CLOSED FEEDBACK - 90LCN50AA001 MOTORIZED VALVE OPEN / CLOSED FEEDBACK - 90LCN51AA001




Sheet 41 of 52

7.3.15 Hardware Diagnostic

The Hardware Diagnostic page contains the following visuals elements:

THE STATUS OF THE CPUS 414-H: RUN/STOP THE STATUS OF THE ET200 RACK THE STATUS OF THE RENDUNDACY AND MASTER / SLAVE CPU ELECTRICAL DIAGNOSTIC:

PLC FEEDER FAULT UPS 230VAC / 24VDC FAULT MOTOR CONTROL CENTER FAULT CABINET HIGH TEMPERATURE CABINET POWER SERVICE PRESENCE BOARD UNDERVOLTAGE TRIP BOARD COMM ALARM The dynamics of the ELECTRICAL FAULT are presented below:

NORMAL - GREY COLOR SQUARE

ELECTRICAL FAULT - RED COLOR SQUARE




Sheet 42 of 52

For more information regarding the CPU status the operator should click on the CPUs picture and open one pop-up that contain the CPUs LED information like is shown below:

In this pop-up are represented the LED statuses of the CPU. The dynamics of the LED are shown below:

NORMAL - GREY COLOUR CIRCLE

FAULT - RED COLOUR CIRCLE

INDICATION - ORANGE COLOUR CIRCLE




Sheet 43 of 52

Dynamics of the Rack are shown below:

NORMAL - NO RED BORDER

FAULT - RED BORDER

Clicking on the Rack picture the operator can open one pop-up containing all the cards in respectively rack. There are four types of cards:

ANALOGUE INPUT ANALOGUE OUTPUT DIGITAL INPUT DIGITAL OUTPUT




Sheet 44 of 52

The cards information pop-up is shown in the picture below:

The dynamics of the LED are shown below:



The analogue inputs and analogue output cards have the property to detect any over-current in the channels. The operator is able to see this information by clicking the dynamic circle of each analogue card.




Sheet 45 of 52

In the picture below is represented the channel diagnostic popup:

The dynamics of the LED are shown below:






Sheet 46 of 52

7.4 Sequences and Permissives

The Misurata Combined Cycle Plant contains two types of sequences: Start Up Sequence Shut Down Sequence

For each sequence there are permissive/conditions that must be fulfilled in order the associated sequence can start.

The Sequence main page is represented below:

7.4.1 Permissive

To start a sequence the operator must check if the permissive to start the associated sequence are fulfilled. For seeing the permissive the operator must click the permissive indicator and the permissive list will appear in the right part of the sequence page. The dynamics of the permissive indicator is presented below:

NOT READY TO START:

READY TO START:




Sheet 47 of 52

In the next picture is showed the list of permissives to start the sequence.

The dynamics of the permissives are presented below:

PERMISSIVE IS FULFILLED - GREEN COLOR SQUARE

PERMISSIVE IS NOT FULLFILLED- RED COLOR SQUARE

When all the permissives are fulfilled the operator must make the visual check, clicking the visual check window and press CHECK OK button when its present in the permissive list. If one of the permissive is not fulfilled the operator is not able to make the visual check but, it can use the button number associated to the permissive and go into the page where is located the permissive. For better understanding of the button number the operator can click on the LEGEND that is located in the down left side of the main sequence page.




Sheet 48 of 52

7.4.2 Sequences

After all the permissives are fulfilled the sequence can be operated using the control buttons represented below:

START SEQUENCE BUTTON - - THE DYNAMICS ARE: PUSHED BUTTON GREEN COLOUR NORMAL BUTTON GREY COLOUR

HOLD SEQUENCE BUTTON - - THE DYNAMICS ARE: PUSHED BUTTON - GREEN COLOUR NORMAL BUTTON - GREY COLOUR

RESTART SEQUENCE BUTTON - - THE DYNAMICS ARE: PUSHED BUTTON - GREEN COLOUR NORMAL BUTTON - GREY COLOUR

RESET SEQUENCE BUTTON - - THE DYNAMICS ARE: PUSHED BUTTON - GREEN COLOUR NORMAL BUTTON - GREY COLOUR

The dynamic of objects for the status of the sequence are presented below:

STEP NUMBER - - SHOW THE ACTUAL STEP OF THE SEQUENCE

PHASE NUMBER - - THE DINAMICS ARE: SEQUENCE IN PHASE A1 - GREEN COLOUR SEQUENCE NOT IN PHASE A1 - WHITE COLOUR SEQUENCE IN PHASE A1 AND SEQUENCE IN FAIL - BLINK RED & GREEN

COLOUR

SEQUENCE STATUS - - THE DYNAMICS ARE: COLOUR:

SEQUENCE IN PROGRESS - GREEN COLOUR SEQUENCE IN HOLD - YELLOW COLOUR SEQUENCE IN FAIL - RED COLOUR

TEXT: SEQUENCE IN PROGRESS - ST/SD SEQUENCE IN PROGRES SEQUENCE IN HOLD - ST/SD SEQUENCE IN HOLD SEQUENCE IN FAIL - ST/SD SEQUENCE IN PROGRESS

END SEQUENCE - - THE DYNAMICS ARE: SEQUENCE END - GREEN COLOUR SEQUENCE IN PROGRESS - WHITE COLOUR




Sheet 49 of 52

The sequences are composed by phases and phases are composed by steps. Clicking each phase will appear in right part of the main page the step associated to the phase. In the next picture is represented one phase of the sequence:

Each step has a permissive and an action. Clicking on the permissive text of the step the operator will open one popup containing the permissive for that step like in the following picture:




Sheet 50 of 52

The dynamics of the step are shown below:

ACTIVE STEP - GREEN COLOUR CIRCLE

NON ACTIVE STEP - GREY COLOUR CIRCLE

FAIL STEP - RED COLOUR CIRCLE

TIME BAR - GREEN COLOUR FILLING

Both of the sequences, the start up and shut down, are controlled in the same way, but the exception is made by the start of the shut down sequence when the operator must choose the way to run the sequence like is shown in the next picture:

SHUT DOWN SEQUENCE WITH REDUCTION TO 0% SHUT DOWN SEQUENCE WITH REDUCTION TO 50%




Sheet 51 of 52

7.5 Emergency Shut Down

In case of Emergency Shut Down the operator must do the following operations:

CLICK ON ESD BUTTON

POP-UP OPEN

CONFIRMATION POP-UP OPEN




Sheet 52 of 52

7.6 Trip Signals

The dynamics of the Trip are shown below:

NORMAL - GREY TEXT

TRIP - RED / YELLOW TEXT BLINKING

Clicking on the trip text will open one pop-up containing the signals that generated the trip:

Mp v Ds 40 009 Plc Operating Manual _ta 5447

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