Screens; Screen Elements - Siemens simatic hmi op27 Equipment Manual

Screens

Process control
Processes (e.g. a processing machine or mixing station) are displayed on and
and monitoring
can be influenced by screens which appear on the OP. These screens are
created during configuration with ProTool for specific applications.
Logically related process values are compiled on screens and thus provide an
overview of a process or a system. Apart from this graphic mapping of pro-
cesses, screens provide an opportunity of entering new process values and,
thus, of controlling the process.
4.1

Screen Elements

Screen sections Various screen elements are used to display and control screens:
S
S
S
S
S
S
S
S
S
S
The different screen elements are presented on the basis of the following exam-
ples.
Example
Part of the contents of various tanks are filled and mixed in a mixing unit of a
fruit juice mixing system. The liquid levels in the tanks and in the mixer are
displayed. The intake valves can be opened and closed by means of operator
inputs on the OP. The motor for the mixer can be turned on and off in a similar
manner.
OP27, OP37 Equipment Manual
Release 05/99
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
text
graphics
character graphics
input fields for process values
output fields for process values
combined input/output fields
bar graphs
trends
text or graphic lists
icons.
4
4-1