1-5
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C622-01
1.3 Operator Control and Monitoring with C7
Using the C7, you can visualize operating states and current process values.
You can also enter information at the C7 that is written to the C7 CPU. You
can also configure functions for machine diagnostics on the C7.
The C7 provides a series of standard functions. You can adapt the displays
and the operation of the C7 to the particular requirements of your process.
The C7 OP processes the operator control and monitoring functions of the
C7. It is independent of the C7 CPU and continues to operate, for example, if
the C7 CPU changes to the STOP mode. The C7 OP has its own MPI address
and is connected to the C7 CPU via the MPI interface. This MPI interface
also provides the link between the C7 OP and a configuration computer
(programming device/PC).
The basic functions of a C7 are to display process states and control the
process. The operator control and monitoring is flexible and is selected by
the user and downloaded to the C7. The following display and operator
functions can be configured for the C7:
S Screens
S Event messages
S Multi-language operator menus
Logically related process data from the control system can be displayed
together in one screen and modified individually as required. A screen
consists of several screen entries since, for example, the description of a
machine state generally requires more related data than can be represented in
one section of the display. This allows, for example, data about the operating
temperature, tank level, rotational speed and run time to indicate the current
machine state.
The C7-621 and C7-621 AS-i systems have line-oriented displays. A screen
consists of text elements made up of static text and current (dynamic) status
values.
Event messages provide information and instructions for the operator relating
to current machine or process states during normal operation. Event messages
can contain process values. The representation of the process values can be
either numeric or symbolic.
Overview
C7 OP
Operator Control
and Monitoring
Functions
Screens
Event Messages
Introduction
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