Diagnostics with the CP 340
8.4 Diagnostics by means of the diagnostic buffer of the CP 340
PtP coupling and configuration of CP 340
Manual, 04/2011, A5E00369892-03
145
Proceed as follows:
1. Open the SIMATIC 300 station concerned (double-click or select menu command Edit >
Open).
2. Then open the "Hardware" object (also by double-clicking or selecting menu command
Edit > Open).
Result: The window containing the configuration table appears.
3. Select the CP 340 in the configuration table.
4. Select the menu command PLC > Module Information.
Result: The "Module Information" dialog box for the CP 340 appears. The first time the
dialog is called, the "General" tab appears (default setting).
5. Go to the "Diagnostic Buffer" tab.
Result: The latest diagnostic events of the CP 340 are displayed in plain text on the
"Diagnostic Buffer" tab. Additional information about error causes may appear in the
"Additional information" output field.
Click "Update" to read the latest data from the CP 340. Click "Help on Event" to show a help
text for the selected diagnostic event containing information about troubleshooting.
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