PROFIBUS Communication modules
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SIPROTEC PROFIBUS-DP - Communication profile
C53000-L1840-B001-03
1.2.5 Block 5: Status of the event list via PROFIBUS-DP
Block 5 is only available if the selected mapping file supports an event list via PROFI-
BUS-DP (ref. to chap. 2.5) and contains information about the status of transmission
of indications using the event list mechanism.
EvSize Number of the parameterized (at most possible) entries in the event list on the PROFI-
BUS communication module (see GlobalSection.DP_EvtLst_ListSize).
EvEntr Number of entries which are stored in the event list and number of entries which are
offered to the master in the message blocks of the PROFIBUS-DP telegram, e.g.:
EvEntr: 12/3
Twelve entries are currently contained in the event recorder and additionally three
entries are currently offered to the PROFIBUS-DP master in the message blocks of
the PROFIBUS-DP telegram.
The receipt of the evaluation of these three entries in the message blocks is expected
from the PROFIBUS-DP master.
A buffer overflow is also shown in this line for the duration of signaling of this indication
to the PROFIBUS-DP master, e.g. (with EvSize equal 100):
EvEntr: 100/3, Ovfl.
EvCtrl Current contents of the handshake bytes “Control_I” (sent to the PROFIBUS-DP mas-
ter, ref. to chap. 2.5.2.1) and “Control_O” (received last from the PROFIBUS-DP mas-
ter, ref. to chap. 2.5.2.2).
The display
EvCtrl: 40h-30h T-R
means e.g., that message blocks are offered to the master with message block num-
ber 4 but no receipt was received for this because the last received message block
number is 3.
The text T-R indicates the data direction for the two values of the handshake bytes
from view of the SIPROTEC device (T = Tx, to the master; R = Rx, from master).
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