Hmi Mark v Product Description

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Power Generation Controls Page 2 April 15, 1998HMI Mark V Product Description Revision

© Copyright 1998 by General Electric Company, U.S.A.All rights reserved.

Printed in the United States of America

CIMPLICITY, Genius, and Series 90 are registered trademarks of GE Fanuc Automation North America, Inc.Microsoft, Windows, Windows 95, Windows NT, and Excel are registered trademarks of Microsoft Corporation.ARCNET is a registered trademark of Datapoint Corporation.Ethernet is a trademark of Xerox Corporation.Modbus is a registered trademark of Groupe Schneider, Inc.IBM is a registered trademark of International Business Machines Corporation.PC is a registered trademark of International Business Machines Corporation.All other trademarks and registered trademarks are the property of their respective owners.All specifications are subject to change without written notice.

This product description is submitted in confidence for evaluation by the Purchaser, and itscontents are proprietary to the GE Company. In taking receipt of this document, thePurchaser agrees not to reveal its contents except to those in its own organization who mustevaluate it. Copies of this document may not be made without the prior written consent ofGE.



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The Mark V HMI is a milestone for the turbine control marketplace. In one powerful,flexible and user-friendly operator interface, it brings together all of the displays andfunctions needed for real-time control and monitoring of turbomachinery processes,auxiliary equipment, driven devices and process diagnostic alarms associated with powerplant control. As the operator interface for the power plant Integrated Control System(ICS), the HMI serves a variety of plant configurations. These systems can include gasturbines, steam turbines, hydraulic turbines, generator excitation systems, static starters,compressors, heat recovery steam generators (HRSGs), and balance of plant (BOP)auxiliaries.

Today, more power generation units and functions are becoming integrated to achievehigher efficiencies and improved reliability and operator visualization. This requires thatHMI systems deliver process information from a broader spectrum of controllers andcompute platforms. Operators are demanding a comprehensive solution to meet theirrequirements, and no longer find multiple interface systems, each dedicated to theirrespective control systems, an acceptable alternative.

The HMI system is playing an increasing role in delivering information to other membersof the business management team. Users are demanding more integrated HMI systems toprovide measurement of total plant operating efficiency, regulatory values, and data forbusiness analysis. This means that future HMI systems must be able to access and deliverinformation to the business enterprise system as well as communicate to balance of plantcontrol systems. Such enhanced functionality requires a more integrated solution and theuse of open operating systems and hardware platforms.

The Mark V HMI system provides the infrastructure needed to meet these demandingrequirements. Designed with an open system concept, the system uses standard openhardware and operating system software. The HMI’s software system uses the WindowsNT client-server architecture from Microsoft. Windows NT provides built-in multi-tasking, networking and security features. The ability to run the system on conventional PCbased platforms minimizes cost, promotes open interfaces, permits system scalability, andensures longevity of investment and future performance enhancement.

The Mark V HMI system is firmly based on GE Industrial Systems (Salem, Virginia) andGE Fanuc Automation (Charlottesville, Virginia) products, which are in wide use on avariety of power generation and industrial applications. GE Fanuc’s widely usedCIMPLICITY HMI serves as the foundation system. GE Industrial Systems configures andintegrates the base CIMPLICITY product to create the Mark V HMI, making the systemwell-suited for the critical tasks of power island and power plant control.



This combination of a state-of-the-art, open architecture HMI system from GE Fanuc, alongwith the power plant control experience and capability of GE Industrial Systems, providesan HMI product which is unique in the industry. The HMI System has the flexibility andcapability to span a wide range of power island and balance of plant situations through avariety of interface mechanisms. Although the interfaces vary, the plant operators are stillprovided with a common visualization of plant operation and conditions.

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2.1 Introduction

The Mark V HMI system integrates plant operation at a single level. The systemprovides a common interface for the plant operators and engineers to view andcontrol plant equipment.

2.2 System Structure

The HMI system can provide plant visualization for control systems that span awide range of equipment. Systems using the Mark V HMI may include one or moreof the following types of equipment:

• Mark V gas turbine control• Mark V steam turbine control• EX2000 generator exciter• Generator Protection• LCI Static Starters• Historians• Engineering Workstations for System Tools• System and Documentation Printers• Ethernet Networking Components• Arcnet Networking Components• Integrated third-party systems• HRSG controllers• Balance of plant controllers• GE Integrated Control System

The HMI provides a common view for the operators and maintenance personnelinto all of the above system equipment. Interconnections for plant control, displayand data accumulation are made through Arcnet and Ethernet data highways, as



indicated in the example configuration drawings of this section, and describedbelow under item 4.0 on Communication.

Systems span from simple retrofits involving replacement of a single existing processor to complete HMI or ICS systems on new plant installations. A number ofexample system configurations are offered later in this section to illustrate thebreadth of HMI application scope.

2.3 HMI Retrofit Applications

The Mark V HMI can easily be added to existing installations due to the modularnature of the system. The equipment can be phased in, starting with a simple HMIretrofit of a single processor, and building over time into a complete ICSsystem. Downtime is minimized as a result of the system’s compatible productsand software.

In the typical retrofit application, the turbine control is existing, and the HMI isconnected to an existing stage link. Existing Mark V operator interfaces cancoexist and operate on the Stage Link with the new HMI based operator stations. This allows the new equipment to be added and commissioned while the existinginterface to the turbine control is still in service, reducing risk of downtime duringthe installation.

System configurations for retrofit applications vary, depending on the retained mixof existing and new equipment. In all configurations, the HMI’s flexibility allowsusers to enhance their existing control systems with modern operator interfaces, andobtain additional operating information to better manage their process. GE wouldbe pleased to propose solutions for your process or existing equipment problemsusing the HMI equipment, and the ICS systems approach.

2.4 Example System Configurations

The following items give examples of typical HMI system configurations forsystems of various sizes and applications. These examples illustrate the wideapplication capability of the HMI system in both new and retrofit applications.



2.4.1 Simple Mark V Replacement Configuration

This illustrates a simple HMI application, serving as an operator interface for aMark V turbine control system. This usage could be on a new system, or as aretrofit application for an existing operator interface.

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2.4.2 Redundant Mark V Replacement Configuration

This illustrates a redundant HMI application, serving as an operator interfacefor a Mark V turbine control system. This usage could be on a new system, oras a retrofit application for an existing operator interface.

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2.4.3 Typical Multi-Unit HMI System Configuration

This configuration shows two HMI servers in a host redundant configuration.The servers are located at the turbine equipment, and provide client, or viewerfunctionality at that location. The servers communicate over Ethernet to eachother, to a viewer in the control room, and by Modbus to external DCS orother control systems. From the HMI stations, the operators can view either ofthe two turbine systems. The HMI is a true client-server system, and can beincrementally expanded as system needs change over time.

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2.4.4 Typical HMI System Including Analysis and Tool Systems

As indicated previously, the HMI system can be incrementally expanded. Thisconfiguration shows the system of Item 2.4.3 above, with the addition of asystem Historian, and a separate engineering workstation. These devicescould have been purchased with the original system, or added later as aretrofit. System printers for documentation and program development havebeen omitted from this drawing.

Note that the Historian connects to the Stage Link directly. The Historiangathers its data directly from the control network. Historian data for displayby the HMI and other systems is passed over the Ethernet data highway.

Also note the Modbus and Ethernet interfaces to external third-party systems,such as DCS systems or PLCs. Such interfaces can be used forcommunication to a DCS, or to collect additional plant data for display on theHMI system. Ethernet interfaces use TCP/IP with a GE open messagingprotocol. Modbus over Ethernet can also be used for these interfaces.

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2.4.5 Typical Full ICS System with HMI

The ICS (Integrated Control System) ties all of the plant’s controllers together, and providesvisualization on the included HMI system. In the ICS, the auxiliary PLC based controllers forHRSG and balance of plant functions are integral to the system. Note that the Historian usesModbus for data interface with the PLC controllers. Please see the ICS product description formore details about the GE Integrated Control System.



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3.1 Introduction

The Mark V HMI system uses GE’s latest technology to produce a superior productfor the power generation industry. GE Fanuc’s CIMPLICITY HMI system serves asthe basic core system, which is then enhanced by the addition of power plant controlhardware and software from GE Industrial Systems.

3.2 HMI Product Structure

A Mark V HMI configuration consists of three distinct elements:

3.2.1 HMI Server

The server is the hub of the system, and provides data support and systemmanagement. The HMI server also has the responsibility for devicecommunication for both internal and external data interchanges.

3.2.2 System Signal Database

The signal database establishes signal management and definition for thecontrol system, provides a single repository for system alarm messages anddefinitions, and contains signal relationships and correlation betweencontrollers and I/O used in the system.

3.2.3 HMI Viewer (Client)

The viewer provides the visualization function for the system, and is theclient of the distributed client-server system. The viewer contains theoperator interface application software, which allows the operator ormaintenance personnel to issue commands, edit coefficient values forsystem control, view screen graphics, data values, alarms, and trends, andprovide system logs and reports.

Depending on the size of the target system, these three elements can be combinedinto a single PC, or can be distributed in multiple units. The modular nature of theHMI system allows units to be expanded incrementally, as needs change.



3.3 CIMPLICITY HMI Product Features

The HMI system includes a number of product features which are unmatched byother monitoring and control systems. These features bring value to the user ofpower plant control, and include the following:

3.3.1 Graphics - CimEdit and CimView

The key functions of the HMI system are performed by its graphic system,which provides the operator with process visualization and control in areal-time environment. In the HMI system, this important interface isaccomplished through CimEdit, a graphics editing package, and CimView,a high performance runtime viewing package.

CimEdit is an object-oriented program that creates and maintains thegraphic screen displays that represent the plant systems to the operators. Powerful editing and animation tools, with the familiar Windowsenvironment, provide an intuitive interface that is easy to use. CimEditincludes a number of features, such as:

• Interactive, dynamic point configuration• Point browser allows access to any point• Standard shapes• OLE embedded objects• Wizard library, and ability to create new Wizards• Movement and rotation animation• Selectable filled object capabilities• Interior and border animation of objects• Event configuration• Frame animation• Hold last known value on points• Windows file import capability• Point search and replace• Object scaling based on point values• Scripting• Undo / Redo on editor• Visibility animation• On-line and object help• Dynamic screen testing



CimView is the run-time portion of the HMI system, where the operatorsees the process information displayed in graphic and textual formats. With CimView, the operators can view the system screens and screensfrom other applications via OLE automation, run scripts, get descriptionsof object actions, and display system and object help.

3.3.2 Alarm Viewer

Alarm Viewer provides alarm management functions for the HMI system. Alarm Viewer’s capabilities are based on GE’s years of experience indeveloping multi-user, multi-tasking supervisory monitoring and controlsystems. Alarm Viewer handles routing of alarms to the proper operator, and alarmsorting and filtering by priority, plant unit, time, or source device. It alsoincludes the following features:

• Static and dynamic alarm modes• Embeds into CimView screens as dynamically updated object• Powerful alarm sorting and filtering capabilities• Supports alarm acknowledgment• Configurable display for alarm fields

3.3.3 Trending Capabilities

HMI trending, based on OLE (object linking and embedding) technology,gives users powerful data analysis capabilities. Trending produces trendgraphs from data collected by the HMI system, or data from other third-party software packages or interfaces. Data comparisons are supportedbetween current and past variable data, allowing quick identification ofprocess problems. Trending includes the following features:

• Fully integrated with CimView• Multiple trending charts per graphic screen• Default parameters for easy setup and use• Fully configurable by user• Unlimited pens per chart• Strong pen, chart and scale control capabilities



3.3.4 Point Control Panel

The HMI point control panel provides a listing of points in the system,with dynamically updating point values and alarm status. Operators havethe ability to view and set local and remote points, enable and disablealarm generation, and modify alarm limits. Operators can also filter andsort points selectively, and save their filter setup parameters for repeateduse.

3.3.5 Basic Control Engine

The basic control engine allows users to define control actions to take inresponse to system events. It monitors event occurrence, and thenexecutes configured actions in response. The basic control engine issupported by an event editor, and a program editor. The event editor allows definition of the actions that are to be taken inresponse to system events, which can be a changing point, alarm or time ofday. A single event can invoke multiple actions, or one action can beinvoked by many events. For more complex actions, the Program Editor allows creation of powerfulprograms that execute in response to events using a Visual Basic forApplications compliant programming language. The editor and rich set oflanguage constructs provide a user-friendly environment, which enhancesproductivity in generating control action code. The following actions can occur based on an event:

• Set point values• Acknowledge or clear alarms• Create log file entries• Invoke specific user-defined actions• Invoke Visual Basic programs to execute user-defined logic

Basic control engine programs can be compiled as executable code forfaster execution speed.



3.3.6 Database Logger

The database logger allows logging of data to a Microsoft Access file or aMicrosoft SQL server. The logged data can include alarms, events andpoint values, and can be controlled and configured by the operator. Oncelogged, the data can be retrieved for reports, and is accessible from avariety of ODBC compliant applications. Logged database maintenanceactions are configurable. Logged data is available to any user on the network with sufficientprivilege. CIMPLICITY software is not required to view or access thedata.

3.3.7 User Roles and Privileges

CIMPLICITY allows configuration of system users to control access andprivileges. Each user is assigned a user identity, and can be assigned apassword. If a password is enabled, both ID and password are required foraccess. A user also has a resources property, which allows definition ofthe resources for which the user has access. In addition to identity, each user is assigned a role, and each role hascertain privilege levels. These privileges define the functions that the userrole can access. If a user lacks privilege to access a secure function, anerror message is displayed, and access is denied.

3.3.8 DDE Application Interface

The DDE Interface allows other Windows applications that use Microsoftstandard and Advanced DDE to obtain easy access to HMI point data. Users can integrate software that supports DDE to monitor, analyze reportor modify the HMI point data. In addition, the HMI provides advancedDDE client communications for data collection from third-party devices.



3.4 Optional HMI Product Features

3.4.1 Server Redundancy Option

Server redundancy, an option for CIMPLICITY HMI Windows NTservers, provides automatic switchover from a primary system to asecondary system in case of a computer failure. Coupled with Ethernetredundancy, this offers users a complete redundant solution for thoseapplications in which maintenance of HMI operations is critical. With server redundancy, point values, alarms and data logging are keptsynchronized between the two systems. In a failover, the incomingsecondary system is completely current, and the switchover is virtuallytransparent to the operators.

3.4.2 Historical Data Analyzer

The historical data analyzer provides functions for data analysis withoutthe need for complex programming or query commands. It includesenhanced data logging functions, historical data viewing, and datamodification and recalculation. The analyzer’s advanced summarization functions allow selection of thetype of analysis to be automatically performed on the collected data. Calculations include:

• Average• Accumulator• Rate of change• Minimum value• Maximum value• Last valid value

Periods for the analysis can be standard periods such as minutes, hours,days, weeks, months or years.



3.4.3 Statistical Process Control (SPC)

The SPC function provides tools to create and maintain a statisticalprocess control analysis of the process. The HMI with SPC supports thefour major phases of such a program, which include:

• Measurement - The ability to collect large amounts of accurate

data• Analysis - The ability to transform data into meaningful

information• Improvement - The ability to use information to change the

process and increase quality• Control - The ability to monitor the process continually and react

to new information as it appears in order to maintain quality levels

With the HMI, data collection can be accomplished automatically fromprocess sensors, or manually through input devices. Once the data iscollected, SPC provides industry standard statistical tools to analyze thedata and transform it to useful information. With the measurement andanalysis phases automated, users are free to concentrate on theimprovement phase of their quality program. The SPC is also criticalduring the control phase, monitoring the changes in the process, andverifying the results.

3.4.4 Pager

The CIMPLICITY Pager, based on Netcon’s FirstPAGE technology,allows complete integration of HMI alarms with standard external pagingsystems based on IXO and TAP protocols. These include Sky-Tel andlocal paging systems. Pager is ideal for operators who need to move freelyaround the facility. Pager features include:

• On-line configuration of users and paging numbers• Ability to enable or disable users from receiving pages• Escalating pages linked to alarm states and other conditions• Filtering based on alarm resources, classes or Ids• Dynamic on-line configuration• Basic control engine interface, for custom paging logic• Customizable pager messages• Configuration templates for fast setup• Support of distribution lists



The Pager function keeps users connected to the process, and allows themto get ahead of a problem before it becomes a crisis.

3.4.5 WebGateway

The HMI WebGateway allows users to access HMI data from anywhere inthe world over the Internet. This option is configured to work with aMicrosoft Internet Server.

WebGateway lets users create web documents (standard HTML format)containing textual HMI data values. It is also possible to include graphicalrepresentations of the process as bitmaps to further enhance the remotescreens. Dialing in from a remote location, users can then view theprocess, and perform set points, if allowed.

The WebGateway provides support for multiple remote users. The HMIsecurity features filter the access and privileges given to remote users, inthe same manner as for the local multiple-user system.

3.4.6 Third-Party Interfaces

The HMI system can exchange data with DCS systems, programmablelogic controllers, I/O devices, and other computers supplied by majorcontrol manufacturers. A broad range of communication products andability to integrate third-party DDE interfaces allow users to interface theirexisting or new third-party equipment to the CIMPLICITY HMI system. Please inquire regarding specific interfaces, as the available list continuesto expand.



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4.1 Compatibility

The MARK V HMI system can serve either new or retrofit applications, and retainsthe capability to perform the functions of the older GE Mark V operator interfaceversions.

MARK V HMI is compatible with all Mark V controller applications, includingboth heavy duty and aero-derivative gas turbines, steam turbines, boiler feedpumpturbines, single-shaft STAG combined-cycle units, and turbine generatormonitoring.

A single unit will serve up to eight (8) turbine controllers or equivalent units. Adding a MARK V HMI to an existing site will not conflict with any existing or <I+> units that are retained. The new system will support the existing Mark Vcontrol signal database (CSDB).

4.2 Stage Link

The Mark V HMI uses Stage Link as its mechanism for communication with the GEMark V turbine controllers and ancillary equipment. Stage Link is based on anArcnet communications network. This interface is at the HMI server level. TheHMI can be located locally to the Mark V control, or remotely within the distancelimitations of the Stage Link system. A single HMI can communicate with up toeight (8) Mark V type controls on a common Stage Link.

4.3 Ethernet

The Plant Data Highway (PDH) serves to integrate the unit turbine control systemswith the overall plant and external communication requirements. The HMI viewerstations connect to the PDH, and receive their data from the servers over thisnetwork. Since this network is intended to provide external interface, it uses openand widely used communication interfaces, such as TCP/IP. Use of TCP/IP onEthernet minimizes impact on the systems being interfaced. The HMI additionallyallows Modbus interfaces with other systems. These open interfaces allow Mark VHMI to collect and display data from a variety of plant-wide sources.

The MARK V HMI will supervise extended equipment, such as HRSG and balanceof plant auxiliaries, through structured GE Fanuc Series 90 PLC interfaces. TheHMI will use Genius and Field Control I/O accessed through the PLCs as operatorinterfaces, and will provide a consistent tool set to configure this equipment.



4.4 Historian [Optional]

Some Mark V systems include an optional historian function, which can beimplemented in an HMI computer, or in a separate computer. The historian collectsdefined data from the equipment under control, and archives this data for laterdisplay and analysis. Like the HMI system, the historian functions will beimplemented on a Windows NT based system. When such a system is present, theHMI can display data for monitoring, plotting historical information, and datamanagement, including the tools necessary to configure the data interface functions.

4.5 Time Management [Optional]

Time synchronization capability is provided in the Mark V HMI, in both low andhigh-resolution forms. The low-resolution form is based on local Mark V HMI PCclocks, and will hold slave PCs within a steady-state error of ± 250 msec of themaster PC’s clock. The high resolution form uses an optional processing board inthe PC, and can track externally generated IRIG-B modulated time code signals, toproduce synchronization with a steady-state error of ± 1 msec.

Redundant time masters can be employed on a single Stage Link, in anycombination of low or high-resolution masters. When redundant masters areavailable, all Mark V control panels, any existing Mark V s, and Mark V HMIunits will automatically select the same, highest quality time master. Failure of theselected master will result in selection of another common master by the entities onthe link.

4.5 Other Interfaces [Optional]

Some turbine systems also include other optional GE or third party equipment thatis structured into the GE control and operator interface systems. The Mark V HMIwill provide interfaces and display information from the following:

• GE On Site Monitor (OSM) for display of collected data• GE Reuter-Stokes Gas Turbine Predictive Emissions Monitoring System

(GTPEMS)• Bently Nevada DM2000 vibration monitoring equipment, for display to

the operators• GE Harris Utility Energy Management Systems



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5.1 Display Management

Display management for the Mark V HMI provides overall display functions tomeet the needs of the turbine plant. These include the following:

• Displayed data will be a combination of data received over Ethernet from

GE or third-party servers, or over the Stage Link, from Mark V controllers • Alarm display connection to external alarm management function

5.2 Special Displays

Turbine systems may have either basic or optional equipment that requires specialdisplays for operation, including the following:

• Hold List Display, for those turbine systems that have Automatic Turbine

Startup (ATS) functions. The hold list is a set of conditions, which mustbe met at certain times, speeds and operating modes in the turbine startup. The HMI provides for the creation, modification, display, printing, downand up loading, compiling and reverse translation of a hold list of up to 64points.

• Reactive Capability Display, showing an X-Y display of real and reactivepower. The plot shows three lines of generator capability as a function ofgenerator coolant temperature.

• Timer, Counter, Accumulator Display, showing the settings and totals inthe Mark V controllers.

• Screen Copy, which makes a copy of a screen image, and stores it in the

Windows clipboard. Screen print through standard Windows printers. This can also be redirected to a file. Files can then be re-displayed,printed, or transmitted electronically for remote viewing.



5.3 Logging [Optional]

Some optional Mark V HMI logging functions require third-party software such asMicrosoft Access database or Microsoft SQL server software. These packagesinclude the following functions:

• Alarm and Event Log, to document normal sequence logic that is defined

as an event in the control system. Events are normally selected to definepoints in sequences, such as minimum speed on a gas turbine to initiatefiring. The events can be logged, and the operator can select anycombination of events, alarms, or contact inputs to include in the log. Logs can be written to disk, printed, or made available for remotetransmission.

• Periodic Data Log, to log selected data points on a selected periodic rate,which can be as short as one second, or as long as one week. Data outputwill normally go to a file. Several instances of logs can run concurrently,and tools are provided to configure and manage the data for these logs.

• Sequence of Events (SOE) Log, for the Mark V controller contact inputs,which are time tagged to one msec. This data can be merged into theAlarm and Event log, above. The HMI will be able to display or print theSOE listing, which will include the machine, date, time, point name andthe new state.

5.4 Trip History

Each Mark V control unit collects a set of data for a trip history to enable analysis oftrip events. The data set covers a time frame that spans the actual trip. On a tripevent, the Mark V HMI will collect the trip history data from the Mark V controllerto avoid it being overwritten. The trip history data can be plotted, printed as tabulardata, or transmitted electronically for remote analysis. The data set for the previous10 trip events for each Mark V control will be retained.



5.5 Process Alarm Management

The features of process alarm management help the operator make a properresponse to alarms, and include the following:

• Alarm queue display for each of the Mark V unit controls. The unit

controller maintains the official unit alarm list, and the HMI will obtainand display alarm states and information from one or all control units.

• A main alarm display will include all plant alarms.

• The HMI will print or store the real-time alarm log as configured by theoperator. Storage will be included for up to five days of alarms.

• Alarm lockout for toggling Mark V alarm conditions will be provided bythe HMI. Locked alarms will continue to be represented on the unit orplant alarm displays, so that an active alarm is displayed as either active orlocked.

• The HMI will provide an alarm notepad function, which will allow theoperator to add an explanatory note to each active alarm drop number foreach panel. Viewing or printing of these notes can be initiated from thealarm display.

• Alarms can be linked to pre-selected related display screens. Clicking onthe alarms will bring up the selected display to provide additional data.

• Alarm help will provide a more detailed description of the alarm, and adescription of the intended function in alarm.

• Equipment diagnostic alarms are displayed such that the operatorsrecognize them as separate from regular alarms or events.



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The Mark V HMI system includes a number of higher-level structured control functionsthat are available as options. These functions generally assist operators in control of theoverall power plant system.

6.1 Multi-Unit Load Control

In a multi-turbine plant, the multi-unit load control function (MLC) will allow theoperator to enter the desired total plant load, and the control will automaticallyregulate the plant to the desired power output. The control will includecompensation for system frequency variation. Unit balance control will be adjustable. The operator can also select whetherindividual turbines participate in the plant load regulation. For instance, theoperator may choose to leave a particularly efficient machine out of the regulatinggroup, and set it to operate at base load. The HMI will display the selection statusand current power output levels of plant turbines, and facilitate changing the plantsetpoints, and the turbine regulating setups.

6.2 Isochronous Load Sharing

Isochronous Load Sharing (ILS) allows a multi-unit plant to reset system frequencyto rated value while sharing load between turbines, both transiently and steady state. The system will handle loads up to the rating of the plant, shared proportionally tothe rating of each machine.

The operator can select or de-select turbine generators to participate in the ILS, withno load bump occurring on transition. Deselected units will run on droop control,with load established by the operator. For selected units, participation weightingwill normally be proportional to the unit rating, but the operator will have the abilityto adjust unit weighting with both gain and offset, as well as to bias collectivesystem frequency setpoint.

Under ILS, a step in load will cause system frequency to move, and all the selectedmachines will adjust load in proportion to their size and isochronous gain, bothtransiently and for the new steady state condition. System frequency will return tothe setpoint value, with load shared proportionally.



In order to keep availability high, redundant power transducers are needed for thisoption. All units must dynamically share information on ratings, output, selectionfor participation, and operator settings to implement this function, and redundanttransducers will help avoid unnecessary upset.

6.3 Performance Monitor

Performance Monitor is a simple cycle gas turbine and generator program thatcalculates and displays relative overall efficiency and component efficiencies,including the inlet, compressor, turbine and exhaust. The option includes speciallow drift sensors for the turbine, which are required for best results. The calculationapproach uses a base line data set and compares in the turbine over time. The HMIwill include screens to allow establishing the base line, and normal operatingscreens showing the efficiency data.

6.4 Historical Functions

The Mark V HMI supports a Windows NT based historian computer, which collectsand stores data from the control units for later analysis. The HMI can access thehistorical data for certain structured functions, as follows:

• A historical data plot program will plot up to six (6) historical points

versus time. The operator can specify the start time, elapsed time, list ofpoints and scaling. The HMI plots can be displayed, printed or saved to afile for further processing. Multiple plots can be displayedsimultaneously.

• The historical alarm and event report will display alarms, events andsequence of events (SOE) for a specified time range, in a format similar tothe normal alarm display. The report can be displayed, printed or saved tofile.

6.5 Remote Control Interface

For Ethernet TCP/IP communication to third-party equipment (such as DCSsystems), the Mark V HMI will provide GSM and Modbus protocol. GSM andModbus over TCP/IP application layer protocols support four classes of applicationlevel messages, which include administration, event driven, periodic data andcommon request messages. The protocol format is documented in an availabletechnical instruction (GEI-100165). GSM is often provided on a separate computerserver when a large volume of remote control information is required.



Alternatively, communication to remote DCS equipment is available through aModbus interface, where the Mark V HMI acts as a slave to the DCS master. Sucha system allows an operator at a remote location to initiate any operator command,and monitor data from the Mark V controller signal database. Speed of thisinterface may limit the amount of data that can be accommodated



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The Mark V HMI includes features to aid and enhance maintenance and tool actions withboth the HMI system as well as the plant Mark V turbine controllers, as described below.

7.1 Remote Access

The Mark V HMI system supports remote access by customers, field engineers orGE Industrial Systems personnel. The customer maintains full control over theaccess to the system. Such access aids in field installation, troubleshooting of MarkV controllers and the HMI, and in resolving general maintenance problems of thecontroller and HMI systems. In remote access, a computer in the remote locationappears as a View node on the site system. Capabilities include operation displays,configuration of the HMI and Mark V controllers, real-time and historical dataretrieval, maintenance operations such as View programs, diagnostic alarms, andconstant changes.

7.2 Diagnostic Alarms

Diagnostic alarms are similar to process alarms, but pertain to the control system. The features of the diagnostic alarms system will help operators and maintenancepersonnel respond to control system problems, and include:

• Diagnostic alarms are a separate type of alarm under the common alarm

system, with similar power in providing the operator with sorting andgrouping capabilities.

• If selected, the HMI will print diagnostic alarms on the alarm printer, inaddition to the process alarms.

• Alarm help is provided for the diagnostic alarms, in a manner similar tothat provided for the process alarms. Clicking on an alarm brings upinformation about the cause, effect and actions to take for the alarmresponse.



7.3 VIEW Programs

A set of special data collection programs, known as View Programs, will providefor collection of data necessary to troubleshoot the Mark V unit control systems. These programs will create diagnostic data files that will be stored for later analysis. Files can be displayed, trended, printed, faxed or transferred across a remote link. The View program data will include the following:

• VIEW1 - A named data collection, manually initiated and stopped, from

entered point names, collected at 1 Hz. • VIEW2 - Data collector to accumulate data from <R>, <S>, <T>, <C>,

or <D> in the Mark V controller. Collection stops when specified numberof samples is reached, or when defined memory is full. Scan rate isspecified in controller clock ticks.

• VIEW2T - High speed triggered data collection program. Collection is

triggered by a specific logic variable, and collects pre and post trigger datain the amount specified.

• VIEWPV - Special program that allows collection of the unit pre-vote

data at high speed. • VIEWQ - Program that allows collection of data from each of the <Q>

processors. • VIEWPIA - Program that retrieves data from the Historian, and displays it

point by point with the data time tag.

7.4 Control Hierarchy

The system control hierarchy establishes allowable command locations for eachMark V controller unit. System elements that can originate a command are calledcontrol ports, which consist only of Ethernet and Modbus links. Hierarchy isimplemented by definition of control ports that are allowed to send commands to aunit, based on the unit’s current mode. Based on these definitions, each controllerunit will store its own current control locations within the unit, and will respondonly to commands from those control locations.



7.5 Valve Automatic Calibrate

The HMI will support an autocalibrate function, which will allow a user to calibratethe feedback signals in the position control of the Mark V controller servovalveoutputs. Calibration will be performed by the Mark V regulator card, from inputsdownloaded from the HMI processor. Two verify functions will confirm calibrationby data collection while ramping the valve from stop to stop.

7.6 Pre-Vote Display

The Mark V HMI will provide a pre-vote display for TMR controllers. The displaywill allow viewing of logic and analog I/O values before voting by the threeindependent controllers to select a value. The voted value will also be displayed.

7.7 Logic Forcing

Logic forcing will be supported by the HMI system, using a logic forcing displayprogram. Identity and status of forced points will be maintained by the system. Forcing and unforcing of points will require an arm - execute command, and will beavailable only to authorized users.

7.8 Control Constants

Control constants are tune-up parameters and variables that change with eachapplication, and may change from time to time during the life of an installation. The HMI will provide a control constant display showing all applicable values for aMark V control unit. The HMI will also have the ability to adjust the values ofcontrol constants, with appropriate ramp rates, and min and max values. The HMIwill include a tool to create and maintain a control constant file on a unit basis,which can be downloaded to the unit controller.



7.9 Configuration Tools

The HMI system will provide tools to configure a Mark V control panel. Thesetools will include up and down loaders, compilers, and reverse translators. Theconfiguration tools will include:

• I/O configurator for Mark V embedded I/O software

• Control Sequence Program (CSP) Editor, to edit existing control program

segments, or to create new program segments

• Panel configuration, including maintenance of the Data Dictionary FileSystem (DDFS) and the Control Signal Data Base (CSDB)

• Capability to configure the Mark V backup operator interface

• Ability to configure the Mark V unit trip logs



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8.1 Hardware Options

The following options are available for the HMI hardware:

1. Server redundancy2. Industrial grade PC equipment3. Rack mount PC equipment4. UPS support5. Additional viewer stations6. Increased monitor size7. Laser and color printer additions8. Optional interfaces9. Arcnet and Ethernet cabling options10. Time synchronization hardware for servers11. Historian

8.2 Software Options

1. GE Harris interface software2. GE OSM interface software3. Predictive Emissions Monitoring System interface software4. Bently Nevada interface software5. Multi-unit load control6. Isochronous load sharing7. Performance monitor8. Historian data interfaces9. Historical data analyzer10. Statistical process control11. Pager12. WebGateway13. Remote control interface14. Third-party compatibility interfaces15. Custom display frames16. Custom reporting, logging, analysis programs17. Valve auto calibrate software



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9.1 Factory Testing

The HMI hardware consists primarily of commercially available conventional orindustrial PC equipment. Testing of the individual components is performed by themanufacturer(s) prior to delivery to the GE integration site. Further testing isperformed during and following integration to confirm correctness of the hardwarecomponent set, its configuration, and the software load.

The Mark V HMI PC computer hardware is integrated using a process called FCP(Factory Clone Process), which is designed to ensure that the computer equipmentis shipped as ordered, identical to similar units, and in perfect working condition.

9.1.1 Database Initialization

When HMI units are ordered, a project coordinator creates the order/unitnumber in the FCP database. This action results in the production of ahardware component pick list, product-specific buildsheets, and initiatescomponent accumulation. This stage also prints all necessary manuals anddocumentation needed by the system.

9.1.2 Unit Integration

All material and components for the ordered unit(s) are collected andpalletized as a complete kit for the integration process. The integrationtechnician receives the kit, and performs the hardware integration inaccordance with the product specific buildsheets. These buildsheetsdescribe the specific steps that the technician must perform, and eveninclude information such as jumper settings for interrupts, ports,terminations or device addresses.

Following integration, the unit receives a final internal inspection by adifferent technician, to make a second verification of the accuracy of theintegration.

9.1.3 Unit FCP Testing

The unit is then started on test software, and the FCP automated testingprocess begins. From the original order/unit number, the system verifiesthat all of the parts on the original order have been integrated into the unit. The unit then undergoes diagnostic testing, in which all of the integrated



components must pass point-to-point functionality tests. Should the FCPdetect a failure during this operation, the diagnostic is terminated. Thetechnician must then correct the problem, and start the diagnostic from thebeginning. This ensures that the technician did not inadvertently disturb aconnection that had already been checked.

9.1.4 Software Load

Following completion of the hardware diagnostics, the software is loadedas a disk image. In this operation, a disk image containing the operatingsystem, all drivers, and the application software is copied to the disk of thetarget machine. This “cloning” process ensures that all software loads arethe same, and are complete, eliminating potential for the technician toleave out a component of the software.

9.1.5 Final Functional Test

Once software is loaded, the system peripherals are connected, and thecompleted unit is started and tested for overall functionality, completingthe testing process for the HMI computer unit.

9.2 Quality Process

GE is committed to setting the industry standard of excellence for customersatisfaction. Inherent in this objective is a continuing determination to performevery function and to hold every process to the highest quality standards, from theway technologies are developed to the way products are manufactured and servicesare provided to our customers. In support of this end, GE has initiated a separatelystaffed continuous improvement process, which is a disciplined statistical approach,to continually measure, analyze, improve and control all production and serviceprocesses, including factory hardware and software testing.



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10.1 HMI Servers, HMI Viewers• Intel based PC• 166 MHz Pentium processor or better• 64 MB RAM• 512 KB cache memory• Hard drive 2.5 GB or greater (multiple on historian)• Floppy drive 1.44 MB• Video card with 2 MB DRAM• 15 inch monitor or better• CD 8 x or better, with multi-read capability• 2 serial and 1 parallel port• Windows NT operating system• Keyboard• Trackball or mouse• Ethernet interface• DAT tape drives on historian and engineering workstations• Modems on HMI servers

10.2 Dot Matrix Printer

• Wide carriage 24 pin dot-matrix• Centronics parallel interface• Tractor feed mechanism

10.3 Laser Printer

• Hewlett Packard laser printer• 12 pages per minute or better• 600 x 600 dpi• HP JetDirect Ethernet card• Capable of handling tabloid (11 x 17″) or A4 media

10.4 Color Printer

• Hewlett Packard color inkjet printer• Eight pages per minute black at 600 x 600 dpi• One to three pages per minute color at 300 x 300 dpi• HP JetDirect Ethernet card• Capable of handling tabloid (11 x 17″) or A4 media



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11.1 Document List

Additional information on the Mark V System equipment is available in the followingdocuments:

Id No. Title File Format

PD-ics5 ICS Product Description *.pdf Adobe AcrobatPD-m5hgn HD GT Product Description *.pdf Adobe AcrobatPD-m5msn Med. ST Product Description *.pdf Adobe AcrobatPD-gpp Generator Protection Panel

Product Description*.pdf Adobe Acrobat

PD-lciss LCI Static Starter ProductDescription

*.pdf Adobe Acrobat

PD-hrsg-plc HRSG – PLC Product Desc. *.pdf Adobe AcrobatPD-bop-plc Balance of Plant – PLC

Product Description*.pdf Adobe Acrobat

PD-hmi5 HMI Product Description *.pdf Adobe AcrobatPD-hist5 Historian Product Description *.pdf Adobe Acrobat



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0 4/15/98 Original creation

Date post:	26-Oct-2015
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Hmi Mark v Product Description

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