Commissioning/Diagnostics; Diagnostics Function Block - Siemens SIMATIC FM 458-1 DP User Manual

Configuring

4.4.5 Commissioning/diagnostics

4.4.5.1

Diagnostics function block

General
Overview,
diagnostic data
Output Bit 16 Bit 15
DG1 15
31
... ...
DG4 111
-
Table 4-4 Assigning system diagnostics/data transfer list to the slave PROFIBUS address
4-24
Master- or slave-specific diagnostic information can be output from
PROFIBUS DP using the DPDIAG and DPSLDG function blocks.
Further information
on the diagnostic data, refer to the User Documentation for the individual
slaves.
DPDIAG block: Diagnostics overview

The system diagnostics provides an overview as to which slave has
provided diagnostic data.

The 4 double words are bit-coded.

Each bit is assigned a slave with its PROFIBUS address
corresponding to the following table.

If the bit for the associated slave is set, then the slave has provided
diagnostics data.
Bit 14 ...
14 13 ...
30 29
110 109
- (125) ...
Data transfer list

The data transfer list provides an overview of the slaves which were
involved with data transfer within a configured time.

The double words (DL1 – DL4) are bit-coded as for the system
diagnostics.

If the bit for the assigned slave is set, then data is being transferred.
Bit 5 Bit 4 Bit 3
4 3 (2)
20 19 18
100 99 98
116 115 114
Application Module FM 458-1 DP - User Manual
A5E01078222-02
Bit 2 Bit 1
(1) (0)
17 16
...
97 96
113 112
Edition 03.2009