8 NCM S7 Diagnostics
A-277
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
8.5 Starting Diagnostic Functions Explicitly
The following table shows the diagnostic options that exist in the available
functions.
Table 8-3 General Diagnostic and Statistical Functions
Diagnostic
Functions /
Diagnostic Object
Diagnostic Aims Special Features
CP information The aim is to identify the CP to which
NCM S7 Diagnostics is connected and
to find out the current mode.
Mode Here, the aim is to find out the current
operating mode of the Ethernet CP as a
module in the S7-300/400 and as a node
on Industrial Ethernet and, if necessary,
to modify the mode (menu command
Operating Mode
Stop Module / Start
Module / Reset Memory / Reset to
Factory Settings).
Diagnostic buffer General error diagnostics using
diagnostic buffers
To display and decode event messages
recorded on the CP in detail. The
diagnostic buffer provides you with
detailed information about all the
communication services of the CP.
Event messages are recorded on the CP
in a ring buffer. The ring buffer can
contain up to 50 entries.
In NCM S7, on the other hand, up to 500
messages can be saved!
All the CP functions can generate event
messages. When you call the diagnostic
object, the messages are read out and
displayed. The latest message is
displayed in the top line with the highest
consecutive number.
If you double-click a previously selected
event message, you display a help text
explaining the message in greater detail.
Note
The event messages in the ring buffer of the CPs are deleted following power
cycle OFF/ON (S7-CPs) or after booting (PC stations).
When necessary, use the option of logging to a file if you want to see the history of
the event messages later.
For more detailed information, refer to the online help on the “Diagnostic buffer”
diagnostic object.
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