Siemens SIMATIC ET 200SP IM 155-6 DP HF - Slave diagnostics

Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Interface module IM 155-6 DP HF (6ES7155-6BA01-0CN0)
40 Manual, 10/2018, A5E03916550-AD
5.3.1
Slave diagnostics
The figure below shows the structure of the slave diagnostics.
Figure 5-10 Structure of the slave diagnostics
Note
The length of the diagnostics frame varies with the IM
155-6 DP HF (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
RET_VAL parameter of the SFC
13.