Siemens SIRIUS 3RK3 - Diagnostics Using PROFIBUS; Using Data Sets

7.5 Diagnostics using PROFIBUS
7.5.1 Using data sets
Note
Diagnostics block
An MSS-speci󹪝c diagnostics block is available for diagnostics using PROFIBUS. You will 󹪝nd more
information on the Internet under FAQs (http://support.automation.siemens.com/WW/view/de/
40631654).
Required knowledge
This section is aimed at the following target groups:
• Con󹪝guration engineers
• PLC programmers
You need to have a sound knowledge of writing/reading data sets using PROFIBUS.
Data sets: overview
Module Data
set no.
Description Read/write
Central unit 0 / 1 System diagnostics Read
DP interface
Central unit 92 Device diagnostics (faults, warnings, messages) Read
Reading data sets
Accessing data sets via slot:
• Access to data set from DP interface via Slot_0
• Access to data set from the central unit via Slot_1
Reading data sets with STEP 7
You can access the data sets from the user program.
Reading data sets:
• S7-DPV1 master: by calling SFB 52 "RDREC" or SFC 59 "RD_REC
• S7 master: by calling SFC 59
Diagnostics / service
7.5 Diagnostics using PROFIBUS
SIRIUS 3RK3 Modular Safety System
288 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006