Screens; Screen Elements - Siemens SIMATIC HMI TP27 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 Touch Panel. These screens
are created during configuration with ProTool for specific applications.
Logically related process values are acquired 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:
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
input on the Touch Panel. The motor for the mixer can be turned on and off in
a similar manner.
TP27, TP37 Equipment Manual
Release 01/00
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
buttons,
light indicators.
4
4-1