Industry Sector, IA&DT
ACTIVEX CONTROLS
Curves are configured in OS engineering of PCS 7 either by setting up curve groups (Chapter
In the Online Trend Control, two different sources exist for displaying a curve. The first source is the process value that is buffered while the ActiveX Control is active. With this source, the trend can be displayed during monitoring. Here it is important that when ActiveX Control is closed, the values can no longer be called. If the second source is used, the data is taken from the archive (refer to
Additional ActiveX Controls are the display of process values in tables (Online Table Control) or of the alarms in alarm lists (Alarm Control). Alarm Control receives its data always from the archive while the table, analogous to the Online Trend Control, has different sources.
ActiveX Controls are quite suitable for designing detail displays, since they provide additional information specifically for a detail area. To this end, specific process values for the corresponding detail display or filters for alarm lists can be selected and preconfigured; for example, by means of the attribute Origin. Figure 3 sketches a possibility for designing the detail display.
| Detail display of Reactor R001 | |
| M | Message list filtered by Reactor R001 |
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T | L | Curve display with process values for Reactor R001 |
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| - level |
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| - manipulated value of the controller |
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| Working area |
Figure 3: Layout for a detail display
SCE Training Curriculum | Page 8 of 42 | To be used only at Educational and R&D Facilities |
PA Module |
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