Interrupts, error messages, diagnostics and system alarms
5.2 Interrupts
Interface module IM 155-6 DP HF (6ES7155-6BA01-0CN0)
30 Manual, 10/2018, A5E03916550-AD
The diagnostic data of a module are located in the data records 0 and 1:
● Data record 0 contains 4 bytes of diagnostics data that describe the current status of the
distributed I/O system. DS0 is part of the header information of OB 82 (local data bytes 8
to 11).
● Data record 1 contains 4 bytes of diagnostics data that are also available in data record 0.
The figure below shows the structure of data record 1:
Figure 5-2 Structure of data record 1
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