Siemens SIMATIC ET 200AL System Manual page 1646

Representation of diagnostics levels in the device view in STEP 7
The following figure shows the representation of the PROFINET device model in the device
view of STEP 7, based on the example of a distributed I/O system ET 200MP:
Number Description
① Level 1:
② Level 2:
Figure 4-3 Diagnostics levels in the device view of STEP 7
Which PROFINET nodes support the extended PROFINET diagnostics?
An overview of the PROFINET nodes that support extended PROFINET diagnostics and of what
you have to configure is provided in this FAQ
(https://support.industry.siemens.com/cs/ww/en/view/23678970).
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
Error(s) in the device
Error(s) in the module
Diagnostics and maintenance
4.1 Diagnostics mechanisms of PROFINET IO
81