Integrated Engineering Station

The Integrated Engineering Station (IES) provides a comprehensive set of engineering and maintenance functions for the HMI and ACS of TOSMAP-DS^TM. A simple, integrated working environment can be provided by the IES which is designed to operate on a Microsoft® Windows® 2000 platform. It contains all the functions necessary to create, edit and modify the HMI and ACS, i.e. logic tool, TAG database tool, display tool, log & report tool, consistency check function, delivery function and launcher. All tools and functions are accessed from the launcher on the start screen.

Logic tool The Logic tool provides graphic methods for creating, editing, monitoring, tuning, simulation and to document control logic. Easy creation and editing of control logic can be performed by dragging and dropping of function blocks from pop-up windows supported by the Microsoft® Windows® 2000 environment. Dynamic operating values can be monitored on the control logic sheets of the IES. The values of each input/output data in control logic are periodically updated in real time and provide the ability to troubleshoot and maintain the system. With the tuning function, logic parameters (set values) can be changed during monitoring of the control logic and the changes directly affect the control operation. To ensure system security, password protection and an action record is taken into account for editing, monitoring and tuning functions. The simulation function enables simulated checks of the control logic without operating the actual plant equipment. The logic tool also provides complete documentation of control logic, parameter list and cross-reference list, which can be used as drawings of the as-built system.

Logic tool display

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TAG database tool TAG database tool is designed to manage a master TAG database into which both the HMI and ACS data are integrated. The master database is created from TAG lists made by Architect Engineers (A/E) or plant engineers, customers, in the form of Microsoft® Excel. TAG ID table and OPS initial database are generated from the master database in the TAG database tool downloaded to HMI stations by the delivery function. The master database is also used to create control logic for each ACS when the control logic is designed using the Logic tool. Thus the entire management of the whole DCS database is supported by the TAG database tool on the IES and it eliminates duplicate entry for configuration tasks. The consistencies check function is available to check discrepancies between the master database and the database of other tools.

Database flow by TAG database tool

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Graphic tool The Display tool utilizes an off-line version of the same graphical user interface as used on the HMI stations, which has been specifically designed for power plant operation. Easy creation and editing of various displays, graphs and lists can be performed using the Microsoft® Windows® 2000 environment. Versatile pre-built components that suit power plant operation are prepared in a library and displays are easily configurable by dragging and dropping the components from pop-up library palettes. The pre-built components are "functional objects" which not only have the shape and color data but also the attributes linked to the TAG database, i.e. a copy of the pre-built component contains a copy of the shape and attributes. The shape and size of a component are easily changed by dragging, without changing the attributes. The trend graph and the alarm list are examples of components. The combination of such displays and standard schematic displays on a screen is supported and provides efficient plant operation. Users can easily develop new components without recompiling.

Graphic tool display

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Log and report tool Logs and reports supported by the HMI are configured and edited by the log and report tool. Report formats can be defined using spreadsheets in MS-Excel, which is popular and easy to use.

Log and report tool display

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Portable logic tool The IES comprehensively covers the engineering tasks required for a TOSMAP-DSTM system that consists of both an ACS and HMI. A stand-alone ACS for small-scale control does not need the IES; instead, the portable logic tool can be used for such a system. For large-scale control containing some ACSs and HMIs, the portable logic tool is also useful for test and commissioning periods, when tuning and re-configuration tasks are congested. The portable logic tool supports creation and editing of control logic, control constants (set values) and process input/output data of the ACS. An easy interface between the portable tool and the IES is available and assures consistency of control logic data and the database in each engineering tool.

Portable logic tool (DynaBook)