Siemens FM 458-1 DP - DPPEVT Process Alarm Information, PROFIBUS DP Symbol

Communication blocks
2-12 Function Blocks - FM 458-1 DP
Edition 12.2004
2.2.4 DPPEVT Process alarm information, PROFIBUS DP Symbol
DPPEVT
STA I
―
Station
SLOI
―
Slot
SUB I
―
Sub-module
SBN I
―
Sub-network
EVC BY
―
Event classes and IDs
IOF BY
―
IO flag
IN BO
―
Input module
OUT BO
―
Output module
MDL W
―
Logical address
PAD
DW
―
OB40_POINT_ADDR
YYR I
―
Year
YMOI
―
Month
YDA I
―
Day
YHR I
―
Hour
YMII
―
Minute
YSE I
―
Seconds
QTS BO
―
Block state
YTS W
―
Status display
The DPPEV (DP process event) provides more detailed information
about the Profibus DP process alarm (OB40 alarm). Contrary to the
DPEVT, only selected information/data is available, but then, in a
conditioned form.
When an alarm event is output, all of the values at the outputs are
updated.
For a communications error, the cause is additionally output at YTS and
the QTS output is set to "0".
Symbol
Brief description
Mode of operation