Visualizing And Controlling Processes - Siemens simatic hmi op27 Equipment Manual

1.1

Visualizing and Controlling Processes

Display and
The basic functions of the OP27 und OP37 Operator Panels are the visualiza-
operating
tion of process statuses and the operation of processes. The following display
functions
and operating functions can be configured:
S
S
S
S
S
S
S
S
S
S
S
S
S
Screens 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.
Input / Output
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.
Bar graphs and Current process values can be output as numeric values, symbolic text,
trend curves symbolic graphs or in the form of bar graphs and trend curves.
S
S
Symbol lists
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.
OP27, OP37 Equipment Manual
Release 05/99
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
screens
input/output of process values
bar graphs and trends
text or graphics lists
messages
logging
print
text
help text
recipes
multiple languages
password protection
functions for function keys and soft keys.
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.
Product Description
1-3