System with online functionality
74
©
COMSOFT
8.7 Event count
Figure 72:
Screen ‘Event count’
A problematic DP Slave, detected by the event log , can be
examined in detail by the
Event count
function. The function
event count
displays in principle the same events as the
Event
log
, but the status changes of the DP Slave can be analysed in
detail. The following events are counted (0 - 99999):
•
DATA_XCHG_RES (DATA)
-
Station is in state DATA_EXCHANGE.
•
NO_RESPONSE (DATA)
-
DP Slave doest not respond.
•
SET_PRM_REQ (CFG)
-
DP Slave was parameterized.
•
CHK_CFG_REQ (CFG)
-
DP Slave was configured.
•
SLV_DIAG_REQ (DIA)
-
Diagnostic messages occur at the DP Slave.
•
TRY (DATA)
-
Number of repeated requests by the DP Master
until the DP Slave responds.
•
ERR (DATA)
-
Error Telegram upon request by the DP Master.
By means of the
key the event count display can be reset.
The event log is updated by pressing the
key or after
expiration of the adjusted event update time (see chapter 8.9).
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