SIEMENS
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Siemens ST PCS 7 · 2017 (Preliminary edition)
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Function
(continued)
Operator System
OS Software
OS Standard Software for Single Station/Server/Client
TrendControls function for table displays and curve displays
Trend window on the operator station
With TrendControls the operator can display archived values:
•
Archive tags from the process value archive
•
Online values of process tags from tag management
The display is in relation to time (table/trend window) or in rela-
tion to another value (function window).
The time can be defined statically (absolute, as configured) or
dynamically (in relation to the actual system time) as:
•
Start and end times
•
Start time and period
•
Start time and number of measuring points
All TrendControls have scrolling functions and a function for
directly selecting the start or end.
During runtime, operators can individually adapt the
TrendControls functions which have already been predefined
during plant configuration, and save the settings globally or
user-specific. They are able to change the data link during
runtime, and to access other data. It is also possible to integrate
exported archive databases online.
APL Operator Trend Control
The APL Operator Trend Control coordinated with the Advanced
Process Library offers another option to the operator for flexible
online compilation of trends. The values for the trend display are
selected with a simple mouse click, in which case the value
range and unit are adopted automatically by the process tag.
The selection made can be subsequently adjusted by adding
and removing values. In addition, messages corresponding to
the trend selection can be called.
AlarmControl function for message display and processing
Up to 200 000 messages can be configured per OS single sta-
tion/OS server:
•
Predefined system messages, triggered by a system event
•
Individual or group messages, initiated by a change in
process states
•
Operator input messages, resulting from the manual operation
of objects
The message system integrated in the Operator System records
these process messages and local events, saves them in mes-
sage archives, and displays them using freely configurable mes-
sage lists.
Flexible setting options for audio output support message sig-
naling with a sound card or by controlling external horns via a
signal module.
The "Loop-in-alarm" and "Select display using process tag" func-
tions support the quick evaluation and resolution of faults. Using
"Loop-in-alarm", the operator can jump directly from a message
selected in the message window to the process display with the
object which caused the fault, and can then call up the associ-
ated faceplate (loop display) through the process tag whose
block icon is colored (cyan). The faceplate window (loop dis-
play) can be anchored so that it remains visible even when the
display is changed.
Group displays visually signal the messages currently present in
the process display. They also provide information on whether
messages are disabled or not.
Operator station message list
Reporting and logging system
The project created during configuring is documented with the
reporting system. The logging system allows an easy-to-read
printout of data acquired during operation. Different types of pre-
defined logs are available:
•
Message sequence log
•
Message and archive log
•
Measured value log
•
Operator activity log
•
System message log
•
User log
However, a page layout editor can be used to create completely
new page layouts or to individually adapt predefined ones. Log
objects to be printed are simply selected from the editor's object
palette, positioned and configured.
© Siemens AG 2017