Siemens SIMATIC ET 200M Operating Instructions Manual page 217

Hardware interrupt of digital input modules
Figure 9-17
Removing / insertion interrupt
Bytes x+4 to x+8 show the code of the module that has been inserted or removed. The
codes for the individual modules can be found in the GSD file. You can see whether or not
the module has been inserted or removed from the interrupt type in byte x+1.
Figure 9-18
See also
Structure of slave diagnosis (Page 191)
Arrangement of the modules for the function "Change During Operation" and / or
"Redundancy" (Page 44)
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
Structure as of byte x+4 for hardware interrupt (digital inputs)
Structure as of byte x+4 for removing / inserting interrupt
Interrupt, error and system messages
9.1 PROFIBUS DP
215