Siemens SIMATIC ET 200M Operating Instructions Manual page 202

Interrupt, error and system messages
9.1 PROFIBUS DP
Diagnostic interrupt
If there is a diagnosis event for channel / channel group 0 of a module, alongside a channel
error there could also be a module error. The entry is generated also in this case if the
diagnosis for the channel / channel 0 of the module has not been enabled.
Structure of the interrupt part
The interrupt part for the ET 200M is configured as follows (with IM 153-x without module
status an channel-related diagnosis the byte x = byte 9):
The bytes x to x+3 inform you of the interrupt type.
Figure 9-8
202
Structure of the interrupt status of the interrupt part
Operating Instructions, 04/2022, EWA-4NEB7806006-09
ET 200M