Siemens pa module p03-01 manual Theory, Hierarchy Of Flow Diagrams, Multi purpose plant, Curves

Page 4

Industry Sector, IA&DT

THEORY

HIERARCHY OF FLOW DIAGRAMS

In chapter P02-01 the objectives of process control as well as of basic design concepts and techniques for OCM interfaces (operator control and monitoring interfaces) were described.

Chapter P01-03 introduced the physical model of a system consisting of a plant, a plant section, equipment module and an individual control unit. Analogously, a hierarchy of flow diagrams exists in process visualization that is arranged as follows, according to [1]:

Plant diagram

Area diagram

Plant section/group diagram

Detail diagram

The hierarchy of the flow diagram facilitates orientation and specific display selection. The uppermost levels Plant display and Area display provide an overview and are usually represented schematically. In small plants, the plant display corresponds to the area display (refer to Figure 1). In the plant display, it has to be possible to select each area directly. In the area display, the plant sections are displayed in a manner that their state can be recognized and the plant section can be selected and operated. The plant section and group display reflect functional relationships; typical units, final control units and control systems can be operated. Detail displays are of great importance to parameter assignment, commissioning and error search if there are plant faults. In detail displays, individual devices and units are represented and by means of effective lines, the functional relationships can be visualized. For example, the signal flow of a control loop can be tracked. [1].

Multi purpose plant

Educt tanks

 

Reaction

 

Product tanks

 

Rinsing

 

 

 

 

 

 

 

Tank 1

Tank 2

 

Tank 3

 

Reactor

Reactor

 

Tank 1

 

Tank 2

 

Tank 1

 

 

1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1: Hierarchy of mimics

CURVES

Plant and area

display

Plant section

display

Detail display

Curves are used for process control during intended operation, or for diagnosing faults [2]. They supplement the display with flow diagrams, particularly because they indicate the dependence of process values on time.

Related displays are: the display of a process value depending on the path, on other process variables, and even of several reference variables that are not described here, however.

SCE Training Curriculum

Page 4 of 42

To be used only at Educational and R&D Facilities

PA Module P03-01, Edition 09/2013

 

Unrestricted / © Siemens AG 2013. All Rights Reserved

P03-01_AdvancedLayout_R1309_en.doc

 

 

 

 

 

Image 4
Contents Industry Sector, IA&DT for Integrated Automation Solutions Totally Integrated Automation TIASCE Training Curriculum PA Module P03-01Matching SCE Trainer Packages for these curriculums Continued educationAdditional information relating to SCE Note on UsageTHEORY IN BRIEF TRAINING OBJECTIVEADVANCED LAYOUT OF UIS HIERARCHY OF FLOW DIAGRAMS THEORYMulti purpose plant CURVESThe Purpose of Curves Acquisition and Storage of Curve Values Designing Curve DisplaysUpdates PrehistoryPrimary Task CommissioningProcess Control or AnalysisACTIVEX CONTROLS Working areaLITERATURE USER DEFINED OBJECTSSTEP BY STEP INSTRUCTIONS TASKTRAINING OBJECTIVE PROGRAMMING2. Then, adapt the settings of the plant hierarchy to the expansion. → Tools → Plant Hierarchy → Settings 4. Then, the block icons have to be generated in the new picture Page 13 of 7. Now, once more activate in the ‘Plant View’ Compile and Download Objects. → SCEPCS7Prj → PLC → Compile and Download Objects 9. Now, in the ‘Component view’, start WinCC by highlighting and opening ‘OS1’. → OS1 → Open Object 11. Now, in the Object Properties, first change the geometry corresponding to your resolution for example, 1024x616 at 1024X768 and the background colors to ‘white’. For the color setting to be accepted, the static in the global color scheme has to be switched to ‘No‘. → Object Properties → Colors → Background color → white → Effects → Global Color scheme → No 12. Next, from the project library, drag in the face plate for reactor R001. → View → Library → Project Library → ReactorV10 Page 18 of value 1000 → Minimum value 0→ 17. Now, the display is positioned exactly over the reactor and some levels are moved to the back Arrange → Within the level → One to back for the stirrer, the heater and the labeling to be visible again then open the Properties for additional adaptations. → Properties 19. Then, select ‘Axis‘. Here, set the attribute ‘Scale‘ to ‘No‘ 21. In the object palette, under the tab ‘Control‘ select the WinCC AlarmControl. Then draw a rectangle with the mouse. → Object palette → Controls → WinCC AlarmControl selection by adding message blocks with the buttons message blocks → Online configuration → Online configuration Do not retain → OK 27. Next, select from the object palette, under the tab ‘Control‘, the WinCC OnlineTrendControl. Then, draw a rectangle with the mouse to position the window for the curve view. → Object palette→ Controls → WinCC OnlineTrendControl Page 26 of Page 27 of Page 28 of Page 29 of Page 30 of 1000 ml. → Value axes → Object name Value axis Temperature → Label C → value Value axis Manipulated variable → Level Value axis Level → OK ‘ReactorR001’ 38. Then, highlight all objects and right click on the selection. Now, select ‘Create customized object‘. → Customized object → Create → StaticText2 Text → OK 44. Next, change the name of the user defined object in the library to click on‘’ for ‘Dynamic’ and then select the tag. → → Tag A1multipurposeplant/ T2reaction/reactorR001/ A1T2L001/ A1T2L001/ MonitorA1T2L001/PV#Value → OK 49. Finally, we should position the faceplates picture blocks correctly, label and save them → → Project Library → customObjectreactorV10 53. In the properties you can now access, under ‘UserDefined’, the selected properties of the customObject. Thus, you created an object with a specific selection of properties that can be used again and again quickly and effectively. → Properties → Object Properties → UserDefined EXERCISES TASKS