Siemens SIMATIC ET 200M

Interrupt, error and system messages
9.1 PROFIBUS DP
ET 200M
214 Operating Instructions, 12/2008, EWA-4NEB780600602-08
Hardware interrupt with time stamping of digital input signals
If the IM 153-2 reports a hardware interrupt, this means that at least one data record
contains messages concerning time-stamped signal changes or special messages.
The DP master CPU can read the data record(s) and evaluate them with the FB 90
"IM_DRV" (see
PCS 7 documentation).
In the same way, it is possible to evaluate with the FB 62 "FB TIMESTMP".
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Figure 9-15 Structure as of byte x+4 for hardware interrupt (time stamping)
Hardware interrupt of analog input modules
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Figure 9-16 Structure as of byte x+4 for hardware interrupt (analog inputs)