Siemens pa module p03-01 manual Training Objective, Theory In Brief, Advanced Layout Of Uis

Industry Sector, IA&DT

ADVANCED LAYOUT OF UIS

TRAINING OBJECTIVE

After working through this module, the students have additional knowledge regarding the design of the user interface of an operator station. They are able to make additional information available on the detail level. To this end, they use adapted message lists and trend curves. The students are able to combine created composites into a user defined object and redesign existing objects as user defined objects. These objects can then be made available for reuse.

THEORY IN BRIEF

In this chapter, some aspects of OS engineering are considered in greater depth. While in chapter P02-01 automatic generation of process images was primarily discussed, now supplementary techniques for designing process control are described.

The flow diagrams (refer to P02-01) are usually arranged in the following hierarchical levels:

–Plant display

–Area display

–Plant section/group display

–Detail display

This classification can result from the plant hierarchy. While the upper levels aim for a good overview of the entire plant or corresponding areas, the plant section display and the detail display are to provide considerably more information about the area under consideration to make situation-conforming settings of parameters or fault diagnosis possible.

In addition to detailed information about the current state of the areas under consideration, the representation of process values in curves is particularly helpful to analyzing deviations. In curves, the time characteristics of a process value are represented. With one glance, the operator can immediately read off the following information:

–The time when striking changes occurred in the course

–Process values at the time mentioned above

–Gradients for certain points in time

–Dependencies between process values at simultaneous display

–Extreme values (when and how large)

–Fluctuation range

–Set point deviations

–Frequencies

Curve displays provide the operator with an expanded basis for decisions regarding control action. If a process value is outside the permissible range, based on the curve the user is informed of process value development in the most recent past and can detect whether the value continues to change for the worse or is improving.

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P03-01_AdvancedLayout_R1309_en.doc