Siemens SIMATIC ET 200iSP Operating Instructions Manual page 183

Diagnostics
The following diagnostics can be used to identify all invalid configuration states:
Table 6-22
ID-related diagnostics
All the bits from slot 4 to 35 are set
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Diagnostics for incorrect ET 200iSP configuration statuses
Commissioning and Diagnostics
6.8 Diagnostics with STEP 7
Module status
01 : "Module fault, invalid user data" up to slot
B
causing the failure
11 : "No module; invalid user data" starting at slot
B
causing the failure
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