Diagnostics and maintenance
4.1 Diagnostics mechanisms of PROFINET IO
PROFINET with STEP 7 V15
Function Manual, 12/2017, A5E03444486-AH
79
Diagnostics levels in PROFINET IO
Concept
The IO device sends all error messages that occur to the IO controller. The scope and
volume of diagnostics information varies according to the level of diagnostics data evaluation
and the PROFINET devices you are using.
You can evaluate diagnostics data at different levels. The number and type of channels is
selected, for example, at the diagnostics level 4.
The following figure shows the diagnostics levels with PROFINET IO.
Figure 4-2 Diagnostics levels with PROFINET IO
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