Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Interface module IM 157-1 DP (6ES7157-1AA00-0AB0)
36 Manual, 12/2016, A5E32100641-AD
The figure below shows the structure of the slave diagnostics.
Figure 5-11 Structure of the slave diagnostics
Note
The length of the diagnostics frame varies with the IM
157-1 DP (depending on parameter
assignment) between 6 and 244
bytes in DPV1 mode.
You can identify the length of the last received diagnostics frame in STEP
7 from the
13.
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