Siemens SIMATIC FM 353 Manual page 310

Troubleshooting
11.2.4 Message in data block
Overview
Please note the following for direct access to DBs (e.g. using an OP).
If data errors/machine data errors/traversing program errors are detected when the
parameters are written to the data block (e.g. in the parameterization tool), an error
message is stored in the data block. The error-specification is stored in the form of
an error number in the corresponding data block (see error list in Table 11-8
error message occurs each time the data block is written to until the cause has
been eliminated.
It is recommended to scan the error message after every write operation.
11.2.5 Viewing the diagnostic buffer (PG/PC)
Overview
The last five error messages are stored in the diagnostic buffer.
There are two ways of proceeding:
1. In the S7 SIMATIC Manager select the menu File > Open > Accessible
Nodes.
2. In the Accessible Nodes window, select the MPI address of your module.
3. You can view the diagnostic buffer in the menu Target system > Module
status
or
1. Open your project in the S7 SIMATIC Manager.
2. Select the menu View > Online.
3. In the dialog box, select the FM 353 and the associated program.
4. You can view the diagnostic buffer in the menu Target system > Module
status
11-8
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
. The
)