Catalog ST PCS 7.1 - September 2005

■ Overview
The operator in the control center requires not only extensive information
about the automated process, but also information
about the status of the instrumentation and control technology.
Using the PROFIBUS DP/PA slave diagnostics, the essential
properties of the PROFIBUS DP/PA devices can be diagnosed
and displayed on an operator station. PROFIBUS DP master
systems can be standard automation systems or also fault-tolerant
automation systems of the SIMATIC S7-400 range.
All functions are provided by an AS block and an OS object
(ActiveX control). The AS block records the information of the
configured master system and sends the data to the operator
system.
The OS object displays the PROFIBUS DP line configured using
the PCS 7 engineering system (AS-Engineering) including all
PROFIBUS DP stations in an overview display. From this display
the following detailed views can be called up:
• Overview and status display of connected PROFIBUS PA
slaves
• Overview of the devices on a Y-link
• DP standard diagnostics information of all PROFIBUS DP
slaves
• Configuration data from AS-Engineering (e.g. Order No., function
code, location code)
The data required to configure the PROFIBUS DP/PA overview
display and the diagnostics information are derived from the
hardware configuration (automation systems, bus components,
process I/O) of the PCS 7 project. Additional configuration requirements
or engineering know-how are unnecessary. After the
initial configuration, the engineering environment is no longer required.
Note:
With the PCS 7 Asset Management, SIMATIC PCS 7 V6.1 and
higher also offers uniform maintenance information and functions
for the system components of the plant (assets). In addition
to intelligent field devices, I/O modules, fieldbuses and controllers,
this includes network components and plant bus as well as
server and clients of the operator systems. See Catalog
ST PCS 7 for details.
Diagnostics
Status display and diagnostics
of PROFIBUS DP/PA slaves
■ Benefits
• The online diagnostics is independent of any engineering
tools
• The user can change the diagnostics texts and the colors at
any time in the ActiveX object
• The configuration data generated as standard when configuring
the PCS 7 with the engineering system are used (export of
hardware configuration).
• All PROFIBUS DP/PA slaves known in the PCS 7 engineering
system can be visualized.
• New PROFIBUS DP devices can be imported by users themselves.
■ Function
Diagnostics information of the PROFIBUS DP slaves
The current operating states of the configured PROFIBUS DP
slaves can be displayed by means of the OS object and any fault
states that have arisen can be evaluated.
In a detailed view you can see important information about one
PROFIBUS DP slave, e.g.:
• Station failure
• Display of fault and detailed information about the cause of
fault, e.g. wire break on an ET 200M module
• Display of the "Description" and "Comments" fields from the
STEP 7 hardware configuration
• Order No., station address, slot, module type
All PROFIBUS DP standard slaves known in the PCS 7 engineering
system can be implemented.
Additional redundancy functions:
Using the PROFIBUS DP/PA slave diagnostics, redundant
PROFIBUS DP master systems can also be monitored, and failures
detected and visualized. In the case of redundant
PROFIBUS DP slaves, information is also displayed indicating
when a communication path is defective.
In addition to the diagnostics information listed above, the detailed
view of the PROFIBUS DP slave also supplies information
on the redundancy of the modules.
System requirements
The SIMATIC PCS 7 system requirements apply analogous to
SIMATIC PCS 7 V6.0 and SIMATIC PCS 7 V6.1.
Licensing
A license is required for each operator station on which the OS
object is used. It is irrelevant whether the operator station is operated
as a single station or client.
From each operator station, any number of PROFIBUS DP master
systems (each with up to 125 slave nodes) can be visualized
and evaluated.
Siemens ST PCS 7.1 · September 2005
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