Siemens SIMOCODE pro Function Manual page 35

DP master without DPV1 interrupt support (DPV0 interrupt mode)
(e.g. all later SIMATIC S7-300 / 400 DP master systems)
SIMOCODE pro diagnostics data can be evaluated via device-specific diagnostics (status
information) and channel-related diagnostics (as part of extended diagnostics, see Chapter
Structure of the slave diagnostics (Page 19)) in DP master systems without DPV1 interrupt
support.
Using the configuring tool, you can define the DP interrupt mode in which the integration took
place in the DP slave properties.
Device-specific diagnostics contain detailed information about faults, warnings and status
information which are recorded by the process via SIMOCODE pro. Information concerning
hardware faults is transmitted via channel-related diagnostics.
● Behavior and sequence in STEP7: OB 82 is started in the CPU every time a new device
or process fault / warning / status information is diagnosed. If OB 82 has not been
programmed, the CPU switches to "STOP" mode.
● Readout of the slave diagnostics data with STEP7: You can determine which DP slave
has supplied diagnostics data by evaluating the start information in OB 82
("OB82_MDL_ADDR" variable). OB82_MDL_ADDR corresponds here to the diagnostics
address of the slave that is configured in HW Config. The diagnostics data itself is read,
for instance, in the cyclic part of the user program with SFC 13 "DPNRM_DG." The
diagnostics data that is read with SFC 13 has the structure described in Chapter
Structure of the slave diagnostics (Page 19). For further information on SFC 13, please
refer to the STEP7 Online Help system.
SIMOCODE pro - Communication
Function Manual, 11/2018, A5E40508495002A/RS-AC/003
Communication
2.1 PROFIBUS communication
35