BCU-01 Controller module ABB card industrial control automation system

Description

The operation station in DCS uses BCU-01 to complete tasks such as system development, generation, testing and operation, which requires corresponding system software support, including operating system, programming language and various tool software. A complete set of DCS, the application software running on the operation station shall be able to realize the following functions: real-time database, network management, historical database management, graphics management, historical data trend management, database detailed display and modification, record report generation and printing, man-machine interface control, control loop adjustment, parameter list, serial communication, various configurations, etc.

configuration
The development process of DCS mainly adopts the system configuration software BCU-01 to generate various application software according to the actual needs of the control system. The functions of configuration software include basic configuration and application software configuration. The basic configuration gives the system a configuration information, such as the number of various stations in the system, their index marks, the maximum number of points per control station, the shortest execution cycle, and the memory capacity. The configuration of application software includes rich contents, mainly including the following aspects.
(1) Configuration of control loop
In essence, the configuration of control loop is to use various basic functional modules provided by the system to form various actual control systems. At present, the configuration methods provided by different DCS are different, which can be summarized as the connection mode of specified calculation module, decision table mode, step record mode, etc.
The connection mode of the specified calculation module is to call various independent standard calculation modules, connect them with lines to form a variety of control loops, and finally automatically generate control software. This is a very intuitive configuration method for BCU-01, which has both information flow and control functions. The decision table method is a pure form of filling, as long as you fill in the content or answer questions item by item according to the requirements of the configuration table. This method is very conducive to the user’s configuration operation. The step recording method is a language instruction based writing method, which has a large degree of programming freedom, and various complex functions can be realized through some skills, but the configuration efficiency is low. In addition, because this configuration method is not intuitive, it often requires configuration engineers to have high technical level and configuration experience.
(2) Real time database generation
The real-time database is the most basic information resource of DCS, and these real-time data are stored and managed by the real-time database. In DCS, there are many methods to establish and modify real-time database records. The common method is to use general database tools to generate database files. The system directly uses this data format for management or uses some method to convert the generated data files into the format required by DCS.
(3) Generation of industrial process screen
DCS is an integrated control system, which must have rich control system and detection system screen display functions. Obviously, different control systems need to display different images. In general, it is a basic requirement for DCS configuration to show various measurement and control parameters and system status in proper forms such as characters, bar charts, curves, etc. in combination with general appearance, grouping, control loop, flow chart, alarm, etc. In addition, various variable directory screens, operation guidance screens, fault diagnosis screens, engineer maintenance screens and system configuration screens can be displayed as required.
(4) Generation of historical database
All DCS supports historical data storage and trend display functions. The historical database is usually generated by the user through screen editing and compiling technology without programming. This file defines the structure and scope of each historical data record. The data in the historical database is generally divided into groups, with the same data type and sampling time in each group. Define the relevant information of each data point during generation.
(5) Report generation
The report printing function BCU-01 of the operator station of DCS is also configured through the report generation part of the configuration software. Different DCS have large differences in the report printing function. Generally speaking, DCS supports the following two types of report printing functions: periodic report printing and trigger report printing. Users can generate different report forms according to their needs and preferences.

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