scholarly journals DIRECT DIGITAL CONTROL IN A COMPLEX OF SOFTWARE DESIGN OF DIGITAL CONTROL SYSTEMS

2017 ◽  
Vol 3 ◽  
pp. 332
Author(s):  
Sergei Verteshev ◽  
Vladimir Konevtsov
Keyword(s):  
Automatic Control ◽  
Programming Languages ◽  
Control Systems ◽  
Software Design ◽  
Digital Control ◽  
Computer Aided Design ◽  
Digital Controllers ◽  
International Standard ◽  
Digital Control Systems ◽  
Direct Digital Control

This article provides the functionality of creating direct digital control devices in the computer-aided design of digital automatic control systems (CAD of digital ACS), in a complex of software design of digital control systems (SDSDC complex) for automated process control systems. Technical tools are defined by the international standard IEC 61131-1: 2003 (Part 1: General data). The possibility of implementing SDSDC complex in direct digital control, single-cycle and multi-cycle ladder diagrams, identification of objects of management and synthesis of digital controllers in comparison with the international standard IEC 61131-3: 2003 (Part 3: Programming Languages) are evaluated. Users’ productivity is estimated as well as the possibility of its separation between the users at different stages of the design of digital systems of automatic control is assessed.

scholarly journals DIRECT DIGITAL CONTROL IN A COMPLEX OF SOFTWARE DESIGN OF DIGITAL CONTROL SYSTEMS

2017 ◽  
Vol 3 ◽  
pp. 337
Author(s):  
Sergei Verteshev ◽  
Vladimir Konevtsov
Keyword(s):  
Automatic Control ◽  
Programming Languages ◽  
Control Systems ◽  
Software Design ◽  
Digital Control ◽  
Computer Aided Design ◽  
Digital Controllers ◽  
International Standard ◽  
Digital Control Systems ◽  
Direct Digital Control

This article provides the functionality of creating direct digital control devices in the computer-aided design of digital automatic control systems (CAD of digital ACS), in a complex of software design of digital control systems (SDSDC complex) for automated process control systems. Technical tools are defined by the international standard IEC 61131-1: 2003 (Part 1: General data). The possibility of implementing SDSDC complex in direct digital control, single-cycle and multi-cycle ladder diagrams, identification of objects of management and synthesis of digital controllers in comparison with the international standard IEC 61131-3: 2003 (Part 3: Programming Languages) are evaluated. Users’ productivity is estimated as well as the possibility of its separation between the users at different stages of the design of digital systems of automatic control is assessed.

scholarly journals NON-LINEAR TRANSFORMATION OF SIGNALS IN SOFTWARE DESIGN OF DIGITAL CONTROL SYSTEMS COMPLEX

2017 ◽  
Vol 3 ◽  
pp. 140
Author(s):  
Vladimir Aleksandrovich Konevtsov ◽  
Lilia Motaylenko
Keyword(s):  
Automatic Control ◽  
Control Systems ◽  
Linear Transformation ◽  
Software Design ◽  
Digital Control ◽  
Automatic Control Systems ◽  
Digital Control Systems ◽  
Non Linear ◽  
Linear Elements

Dependencies between signals and dependence of signals on time are strictly non-linear. Non-linear elements, commonly used in the synthesis of automatic control systems, include: a two-point link, a two-point link with hysteresis, a three-point link, a three-point link with hysteresis, a module, saturation with insensitivity.

Rules for Designing Digital Controllers from their Analog Counterparts

1994 ◽  
Vol 31 (4) ◽  
pp. 309-323 ◽  
Author(s):  
Mark J. O'malley ◽  
Annraoi M. De Paor
Keyword(s):  
Control Systems ◽  
Digital Control ◽  
Digital Controllers ◽  
Digital Control Systems

Rules for designing digital controllers from their analog counterparts Rules and observations for the design of balanced digital controllers from their analog counterparts are given. A root range technique showing the mapping of analog controller roots into the digital domain is illustrated. The performances of the digital control systems resulting from different emulation techniques are compared.

The Positioning of Control Valves in Digital Control Systems

1981 ◽  
Vol 14 (12) ◽  
pp. 443-445
Author(s):  
A. J. Hinkins ◽  
J. M. Malcolm ◽  
R. I. Little
Keyword(s):  
Process Control ◽  
Control Systems ◽  
Digital Control ◽  
Positioning Systems ◽  
Control Valves ◽  
Control Loops ◽  
Digital Control Systems ◽  
History Of ◽  
Functional Layout ◽  
Direct Digital Control

The history of valve positioning systems on process control loops is reviewed. The advent of single loop micro-processor based controllers makes possible an improved functional layout for such systems, which has previously found application on direct digital control systems. If this new layout should find support within the industry, then some form of national co-ordination of the development of interface standards would be desirable.

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