Chapter 5 Rev1

5

Chapter: 5 Titolo: HMI

HUMAN- MACHINE- INTERFACE

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5.1

Introduction The TTS4 Display and Monitoring System is a Human Machine Interface (HMI) product developed by Solar Turbines Incorporated specifically for turbomachinery control applications. The HMI application (TT4000) displays and stores data and provides a range of control interface capabilities. The local HMI is provided as a separate industrial PC. Due to the larger data storage requirements, the HMI is provided with a rotating hard disk. TT4000 is a flexible and expandable product. With the following features, TT4000 is consistent with current industry software standards: • The system runs under the Windows 2000 or XP operating system. • The system is compliant with Transmission Control Protocol and Internet Protocol (TCP / IP) to permit easy transmission of data between TT4000 and other programs. • The system is compliant with Object Linking and Embedding for Process Control (OPC) standards. This facilitates integration with other compliant software systems. • Historical data are readily viewable within the program. Also, files in Comma Separated Value (csv) format can be created for easy export to other programs such as Microsoft Excel. • The program supports Active-X controls. The HMI provides a window into the package control system. It shows engine conditions, stores information, alarms, shutdowns, and events, and can permit varying levels of control. While beneficial to an operator, the HMI is not essential for the control of the package, since that responsibility rests with the package control system. In acting as an information server and not as a critical engine controller, the complexity of communications protocols is simply handled through the Microsoft Windows 2000 and HMI package software using commercially available drivers. This design removes complex communications from the primary controller level, which in turn maximises the simplicity and integrity of the overall system. The HMI interfaces with, but is separate from, the package control system. This allows the TT4000 application to perform multiple tasks without interfering with the critical control and protection functions handled by the control system. The HMI communicates with the primary controller over Ethernet using a TCP communications protocol. The communications server feeds an OPC server imbedded on the same HMI PC. The OPC server is the primary method for the TT4000 application or a client DCS system to acquire data from the primary controller and field instrumentation.

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5.2

HMI Displays When the HMI PC is switched ON, the TT4000 HMI is automatically launched.

5.2.1

Display organisation and navigation The Microsoft Internet Explorer web browser is the standard web browser that is used for TT4000. It is available on any Windows 2000/XP system and supports both scripting and ActiveX controls. The browser is used for both local operation and for remote access. TT4000 is a self-contained web site from which html web pages are served up using standard HTTP and HTTPS protocols through TTServers built-in web server interface.

TT4000 display screens provide the operator a window into the operation of the equipment. The page is divided in 4 parts: “Page Header”, “Navigation tree”, “Alarm Banner” and “Main screen”. The major portion of each display screen is dedicated to showing the current view.

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5.2.1.1

“Page Header”

On the “Page Header” (top of the page) the majors engine parameters and status are always displayed. The following onscreen buttons may be selected: • Quite - Selecting this onscreen button will acknowledge any active alarm or shutdown. • Reset - Selecting this onscreen button will clear inactive alarms or shutdowns that have been acknowledged, and reset the control system.

5.2.1.2

“Navigation tree” The “Navigation thee”, appears on the left side of the display screen. This provides quick navigation to all of the projects views, reports, or additional applications.

5.2.1.3

“Alarm Banner” On the “Alarm Banner”, on the page bottom, are listed the pending alarms. If needed, the scroll bar on the right side is activated, in order to scroll down the list.

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5.2.2

Starting application

In order to start the TT4000 HMI application, please click TT4000Launch, on the Start menu, or following the path “Start – Programs – Solar Turbines”.

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5.2.3

Page Descriptions

5.2.3.1

Operation Summary The Operation Summary display screen displays a summary of engine, enclosure, lube oil system, actuators, fuel system and generator operating values, and engine status indications. This display screen also displays control system supply voltage, system control selections, operation modes, stop sequences, and control modes. Operation modes, stop sequences, control modes, system control selections, and status indications appear highlighted when active. Data is presented in real time and is continually updated.

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5.2.3.2

Operation Commands The Operation Commands screen, displays the engine status and the different timers related to the main sequences. The following optional commands may be given from this display screen: • Engine (Start / Stop) • Power Setpoint • Syncronization (Start / Stop ) • Syncronization Mode (Auto / Manu)

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5.2.3.3

Lube System

The Lube System display screen, displays lube oil system temperatures, pressures, pump and heater status indications.

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5.2.3.4

Fuel Gas The fuel gas display screen shows the trip, relief and control valve actuation. Also displayed are the fuel line pressures.

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5.2.3.5

Alarm Summary Process alarms and events are viewed through the Alarm Summary. The application displays all events in chronological order. All alarms and events are time stamped by the primary controller in the order they are received.

5.2.4

Multiple Language Display Screens Display screens can be displayed in two or more languages. To view a display screen in an alternate language, select the desired language on the pull down menu (on the top of the “Navigation tree”), and click the “Go” button.

A new display screen will open and the display screen text will appear in the selected alternate language. In addition to the display screen text, Help menu files accessed from an alternate language display screen will also appear in the selected alternate language.

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5.3

Historical Data Analyser The Historical Data Analyzer tool allows users to review historical data collected by TT4000 computer in a strip chart or a data table. Click “Start” on the Windows Taskbar and choose Programs, Solar Turbines, and TT4000 Historical Data Analyzer.

A TT4000 Historical Data Analyzer dialog box appears. Select the drive and directory in which the history log files are located. All log files appear in tree view. Note If the log files are located on a network drive, from the View menu, select Search Network Drives. All the mapped network drives will be listed.

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5.3.1

Analyze Data Logs Click the data log file to evaluate. Tags will appear in Available Tags listing. For multi-language projects, a language can be selected from the Select Language pull down list. Select Filter by Tag Group/Custom: • All Tags • Analogs • Other • Status • Alarms • Shutdowns To search for tags containing specific text strings, Select/deselect “And Contains” and type desired text. Available Tags will list tags containing the text that is specified.

Do one of the following to add or remove tags to be evaluated: To add a tag, double-click a tag in Available Tags, select a tag and press the Add Single or Add All Available button. Tags will be listed in the Selected Tags listing. To remove a tag, double-click a tag in Selected Tags, select a tag and press the Remove Single or Remove All Selected button. Tags will be removed from the Selected Tags listing. Select the desired Start and End Date/Time. The date range associated with a historical log is automatically updated when the log is selected. A status message box below the tags listings indicates the number of database records requested. If more than 10,000 records are selected, the background color changes to red indicating that data retrieval maybe time consuming.

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When satisfied with the selected tags and associated date time range click the “Get Tag Data” button.

Historical Data Analyzer Buttons The progress bar located above the status message shows the tag data retrieval progress. The selected tags will be displayed on the Historical Data Analyzer Strip Chart. Selected tags can also be viewed from the Historical Data Analyzer X/Y Plot, by positioning the cursor to the tool bar X/Y Plot

onscreen button and clicking the left mouse key. To return to the Historical

onscreen button and click Data Analyzer Log, position the cursor to the tool bar Strip Chart the left mouse key. To configure the Historical Data Analyzer Strip Chart or Historical Data Analyzer X/Y Plot, position the cursor to the center of either display screen and click the left mouse key. Position the cursor to the Help menu selection, and click the left mouse key. Select from the available list of Help menu topics to configure the Historical Data Analyzer Log or Historical Data Analyzer X/Y Chart. Notes: If more than 10,000 records have been selected, the background color in the message box changes to red to indicate the data retrieval process may be time consuming. The maximum number of records allowed is 50,000. If more then the maximum number of records has been selected, a prompt to reduce the number of selected tags or the selected date time range will appear. To save the configuration (selected tags) for this project, click the Update Favorites button.

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Historical Data Analyzer Strip Chart

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Historical Data Analyzer X/Y Plot

Historical Analyzer Help Menu

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5.3.2

Data Review/Export To view the data of the selected tags, do one of the following: • On the toolbar, click Data Table

.

• On the View menu, select Data Table. Review the data on the screen or save it to a comma separated value (CSV) file format. A CSV file format is a standard data storage format that is readily usable by applications like Microsoft Excel.

To save the data, click the Create CSV File to export tag data to a comma-separated-value format file.

When prompted for a file name and location either accept the default or specify an alternate file name and location and click Save.

To return to log information, do one of the following: • On the toolbar, click Log Information

.

• On the View menu, select Log Information.

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5.3.3

Analyze Event Logs Click the Event Log to evaluate. Events will appear. For multi-language projects, a language can be selected from the Select Language pull down list. Select the desired Start and End Date/Time. The date range associated with an event log is automatically updated when the log is selected.

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