Technical data

Programming with STEP 7
Manual, 05/2010, A5E02789666-01 477
23 Diagnostics
23.1 Hardware Diagnostics and Troubleshooting
You can see whether diagnostic information is available for a module by the presence of
diagnostics symbols. Diagnostics symbols show the status of the corresponding module and, for
CPUs, the operating mode as well.
Diagnostics symbols are displayed in the project window in the online view as well as in the quick
view (default setting) or the diagnostic view when you call the function "Hardware Diagnostics."
Detailed diagnostic information is displayed in the "Module Information" application, which you can
start by double-clicking a diagnostics symbol in the quick view or the diagnostic view.