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1 The WTE software package is tailored to the requirements of manufacturers and control system developers of wind turbines, and helps to considerably reduce the time required for developing and commissioning the controller software and the visualization. Bachmann s Wind Turbine Essentials cover many standard tasks required for the automation of wind turbines. The configurator of the WTE toolset is integrated into the Engineering Suite SolutionCenter and enables the structured configuration of the event system, user roles and access rights, data sampling with long-term recording and statistical processing. A visualization for developers and customers is created in parallel with the data configuration. The runtime components execute the event system, sample data values, send alarm messages and check passwords of users. The complete logging of all events and user operations is secured by the M1 system features. A visualization is offered both for a PC with mouse operation and for a panel with touch screen (OT) in optimal resolution. The visualization offers access to process data which can be arranged in arbitrary groups with freely selectable physical units and description texts in any language or character set. The PC visu contains additionally graphical components for snapshots and long-term trends as well as power curve and wind rose diagrams. The software developer can additionally use the WTE features in his own code because most features are also delivered in program libraries for IEC (M-PLC) und C/C++. For user management and access control, WTE contains also a dedicated login-checker and a tool to generate passwords. Item Item no. WTE SDK (DVD for installation) WTE Admin Tool (DVD for installation) WTE Company Licence WTE Runtime Licence

2 Configuring instead of programming Readable, comparable, extensible project format High performance in execution of vast event configurations Setting and resetting events automatically from variable value or from user program Individual configurable time delay for setting and resetting events and for power-up Freely configurable reactions to events Complete logging with high-resolution time stamps Standardized power curve created with a few mouse clicks Numerous statistical functions with automatic data sampling and graphical display in visualization Flexible assignment of user access rights depending on login name and password Ready-to-use visualization is created by configuration Arbitrary grouping of monitor- and parameter values Arbitrary language and character sets for description texts Extensive program libraries for customer specific extensions Configure Deploy Execute WTE Configurator M1 settings Project.zip WTE.m Plug-in for SC Visu settings Monitor Implement Libs for PLC and C WTE.Visu Standalone Software package overview: 465

3 Configurator Environment The configurator is installed as extension to the Bachmann SolutionCenter. Project handling Turbine projects are stored without any external dependencies and thus can be transferred easily from one PC to another. Workflow For all parts of the configuration, comfortable table editors with input assistants are available. Validation Immediate check for plausible and complete configuration parameters User management Configuration of user roles, assignment of required role to each value. Required role for reading and writing can differ Storage format Project files in readable format enable comparison between versions and parallel work of different team members Version control Tools for version control (SVN, CVS, etc.) can be operated directly from the project navigator. This assures that always complete projects are stored on the server. Import of external models Project contents like event configuration can also be imported from different sources as CSV format. Projects of the predecessor product M-WAB can be imported directly into the WTE configurator Software modules for the controller WTE software module Executable program for the controller, behavior is defined by configuration project. Executes event system, logging, sampling of production data, statistical processing, trend- and snapshot-recordings. Supports fail-safe software update. WTE alarm handler Executable program for the controller. Is called in case of an error by the WTE module for automatic dispatch of and/or SMS messages. Triggering is also possible by other application programs. WTE event logs are included as attachment. WTE login checker Executable program for the controller. See User management and access rights for details Visualization WTE Visualization ready-to-use visualization for a Desktop PC with mouse operation, graphical display of trends, power curve, wind rose. Buttons for turbine commands, arbitrary grouping of values in tables for numerical display of monitor values, parameters, event logs and access logs. Displayed values Variable values are selected and grouped, then descriptive texts, formats and physical units are assigned. The visualization displays the values according to the selected language and the access right of the current user. Both values of the WTE software module and values of any other process variable on the controller can be selected. WTE evis visualization optimized for HMI panels with touch screen under Windows or Linux Internationalization Definition of descriptive texts for events, parameters and monitor values directly in the WTE configurator. Export and import of languages to CSV format for external translation. Filter for missing translations is available. 466

4 Visualization Character set Text representation of numerical values Brand labeling all international character sets are supported, e. g. for Asian, Cyrillic or Arabic languages status information is commonly stored as numerical values. For these values it is possible to configure descriptive texts for different languages. icons and images can be replaced by manufacturer-specific images Event system Event parameters Events are operational states which are derived from sensor data, from programmed reactions and from operator input. The complete list of all events that might occur is the central part of the turbine control program. Necessary reactions to events, like stopping the turbine, yawing operations etc. are assigned to events. For each event, a set of the following additional parameters can be configured: arbitrary number and type of user-defined event reactions. Typical are brake, yaw and alarm level. Creation of follow-up-events on repeated occurrence of another event within a defined period, e. g. frequent exceeding of a temperature limit Descriptive name of event in different languages for display in the visualization classification in Info, Warning, Error Possibility to deactivate an event, e. g. during service procedures. Required user access right for deactivating. time delay after power up, e. g. to wait for the completion of an average calculation. time delay between setting an event and calling the reaction required user right for resetting events (error acknowledgement) Setting and resetting events automatically by variable value automatically via handler block with hysteresis via set- and reset-functions of WTE libraries via reset command of the visu (depends on access right) Max. number of events only limited by memory and CPU load Trends and snapshots Trends Snapshots continuous long-term recording of values for archiving reasons, e. g. for recording of the turbine s production data continuous short-term recording of some selected variable values until a trigger condition occurs. Then the last few minutes are stored, otherwise the values are discarded. Typically used for error-analysis with a pre-trigger condition. 467

5 Trends und Snapshots Storage File based on the storage media of the controller. Each recording is stored in one file, the filename contains time and date of the recording. File format is documented and thus can be parsed also by customer specific tools. Storage Selection of available recordings by type and by date and time. The trend display offers several Y-axes, show/hide curves and measurement cursors with numerical value display. Trend values can also be shown as table. Statistical functions Average calculation Average calculation of linear and polar values, selectable sample time and averaging time, with or without calculation of minimum/maximum values and standard deviation. State counter Counts rising edges and duration of on-state, separated output as day-, year- and total count/duration. Values are shown as variables and are stored automatically in files. Maximum values for edge count and duration can be configured, then exceeding the limit can raise a maintenance warning. Typically used for counting operating hours of aggregates. Energy counter Adds up the current power to energy and keeps produced and consumed energy separated, both are displayed as day-, year- and total values. Results are displayed in variables and are automatically logged to files. Power curve Creates a power curve according to IEC , selectable with or without internal average calculation. One type can directly process raw data, the other expects input data which are already averaged. The WTE Visualization displays the power curve together with an optional reference curve. It is possible to keep several power curves on the controller, e. g. to verify the result of parameter changes Wind rose Shows the distribution of wind speed depending on the wind direction. The WTE visualization has a graphical display of the wind rose. User management and access rights Definition of user rights Creation of a list of user roles in the configurator, then assignment of required role to a variable. Required role can be different for Read- and write-access. E. g. reading of operating hours is possible for everybody, resetting the counter is only allowed for certain users. Password generator Separated stand-alone tool to create passwords which are valid for a limited period between one day and one year. Login Checker Executable program for the controller. Derives user rights from login name, password and date and can limit the access of the user Access log Complete logging of all logins and write operations to the controller. Log is stored on the controller 468

6 Programming libraries Supported languages WTE Interface Library WTE Library File functions General features The libraries are available with an identical feature set for IEC (M-PLC) as *.lib and for C/C++ as *.a Comfortable interface for communication between user program and WTE software module, especially for setting/resetting events, retrieving current state of events, resetting counters, triggering snapshots and start/stop wind rose and power curve recordings. Functions and function blocks for statistical data processing, energy- and state-counters, creation and administration of specific log files Fast and resource-saving access to storage media Automatic creation of a series of files with a configurable maximum size for each file Filename contains date and time of last entry which makes sorting in chronological order easy Each file contains an optional header with selectable information, e. g. turbine name, software version etc. The oldest file can optionally be deleted automatically Files can optionally be zipped automatically on closing Supported file formats CSV with header information and column captions Binary with header information Ring file for temporary storage of values System requirements Engineering PC Controller software Controller hardware Bachmann SolutionCenter needs to be installed, required version M-Base 3.80 or better M-Base 3.80 or better controller CPU of series MX200, MPC200, MC200 and MH200 Delivery variants WTE SDK WTE Admin Tool WTE Company Licence WTE Runtime Licence DVD for installation Software development Kit contains configurator, runtime components, libraries and visualization DVD for installation Tool to create manufacturer specific passwords with limited validity period. Matches the login checker included in WTE License to use the WTE development tools in the whole company License to use the WTE software module on controller 469