1-3
OP27, OP37 Equipment Manual
Release 05/99
1.1
Visualizing and Controlling Processes
The basic functions of the OP27 und OP37 Operator Panels are the visualiza-
tion of process statuses and the operation of processes. The following display
and operating functions can be configured:
screens
input/output of process values
bar graphs and trends
text or graphics lists
messages
logging
text
help text
recipes
multiple languages
password protection
functions for function keys and soft keys.
Logically related process data from the PLC can be compiled, displayed on a
screen and individual parts of it modified. Screens may contain soft keys,
graphics, texts and values.
The OPs can display machines and systems as full–graphics screens. This
makes it easier for the operator to find his way around.
Numeric, alphanumeric or symbolic values can be entered in input fields on the
OP which are then transferred to the PLC. Current values of the PLC are dis-
played in output fields in alphanumeric form.
Current process values can be output as numeric values, symbolic text,
symbolic graphs or in the form of bar graphs and trend curves.
Bar graphs
represent a value as a rectangular area. Bar graphs can be used to display
fill levels or quantities, for example.
Trends
display a value continuously. This display mode is useful when displaying
values that vary with time, variations in temperature or pressure, for exam-
ple.
Various graphic elements (bitmaps) or texts can be called into the display
depending on the process status. In this way, for example, the current setting of
a valve can be visualized on the OP screen by means of symbolic graphics, or
text can be modified according to the situation.
Display and
operating
functions
Screens
Input / Output
Bar graphs and
trend curves
Symbol lists
Product Description
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