1. Control Systems Design Slovak University of Technology Faculty of Material Science and Technology in Trnava 2007

2. Control Systems Design Distributed control systems - process control level:  Process level  Sensors  Actuators  Programmable controllers  Operator interfaces  Lateral communications  Vertical communications...

3. Control Systems Design Distributed Control Systems - Upper Control Level:  Operator level  operator displays  on line control process monitoring  operator process control  process data acquisition  process data history trends aggregation...

4. The process level provides the primary functions of a control system: Acquisition and primary processing of continuous and binary technological variables Control action computation according given algorthms of continuous or logical control Realization of computed control action Alarm generation under abnormal, special events in controlled system or control one as well

5. The process level provides the primary functions of a control system (continued): Fault operation blocking of control system and control system transition into safety state Selfdiagnostic of control system hardware secondary proccesing of analog and binary technological variables used on upper level control horizontal and vertical communication of distributed control systems units...

6. The operator level is usually configured for the functions: controlled technological process monitoring control process visualisation alarms processing on line trends generating off line historical trends archiving and historical data presentation for higher control system level data aggregation.

7. The design of control systems is a complex problem: process level distributed control systems design with programmable controllers control process monitoring design operator interface design (HMI/MMI) SCADA system design Real time Database design...

8. The scope of the DCS course  Process Level - Control Loop - SW life cycle: I/O analogue and binary variable acquisition and primary processing Control action executing Alarms/events processing and managing. The scope of the course Control System Design is specified as follows: Data processing design Control loop design Design process documentation

9. The scope of the DCS course Data processing design Control loop design Design process documentation  Key words User Requirements Specification Functional Specification HW / SW design Documentation Specification

10. Control Loop Design Single Control Loop Cascade Control Loop master /Slave control loops Ratio Control set point programming mixture technology Feed Forward Control on a disturbance on a set point

11. Control Loop Design consists of steps: Dynamic system model identification Dynamic process simulation Control parameter optimisation Control process simulation Control loop stability verification Control loop performance verification

12. Life Cycle Documentation User Requirements Specification Functional Specification Hardware Specification Software Specification Test planning – control system verification, control system validation, FAT, SAT Operator&System manuals Control system maintenance documentation

13. The Course Scope User Requirements Specification  what should to do Functional Specification  what will to do Process Model Identification  transfer function Control Parameters Optimisation  P, PI, PD, PIDA, PIDB... Control Process Simulation  control process verification