How To Use Diagnostics - Siemens SIMATIC NET S7-300 Manual

8 NCM S7 Diagnostics
8.4

How to Use Diagnostics

Procedure
To use diagnostics efficiently, particularly when working with the diagnostic tool for
the first time, the following procedure can be recommended.
1. Use the sequence shown below as a basis for using diagnostics:
Start NCM S7 Diagnostics:
- Establish the connection to the CP (Section 8.3
- Set the options (Section 8.2.2)
- Identify the Ethernet CP
Query the current status of the CP
"Operating Mode" diagnostic object
If the CP is not
in the RUN mode
View / evaluate the diagnostic buffer to obtain an overview
and detailed explanation of diagnostic events.
If necessary, correct configuration or programming.
2. Clarify your problem or task using the check list in Section 8.6 and select the
diagnostic function based on the recommendation there.
A -276
If the CP is in the RUN mode
TCP connections
ISO transport connections/
ISO-on-TCP connections
UDP connections
If anything
displayed for
- connection status
- receive status,
- send status
S7-CPs for Industrial Ethernet Configuring and Commissioning
unusual is
Release 01/2007
C79000-G8976-C182-07