User manual

PTQ-104S Rev2 ♦ Quantum Platform Reference
IEC 60870-5-104 Server for Quantum User Manual
ProSoft Technology, Inc. Page 167 of 195
February 22, 2013
Event Priority
Event Priority permits ASDUs that generate events to be placed in priority
queues that are set by the user. The configuration file contains the following
parameters to support this feature:
The Set Priority Queues parameter must be enabled for this feature to be used.
Each of the ASDUs affected by this feature must be assigned a unique priority
index from 0 to 7. When events of the ASDU with a priority of 0 are present, they
will always be reported before events from any other ASDUs with higher
numbers.
Example - Event Priority
Using the event priority values in the example above, if the event queue
(requested by the processor and sent to the module) contains the events in the
following order:
Event Order
ASDU
1
M_SP_NA
2
M_SP_NA
3
M_DP_NA
4
M_ST_NA
5
M_DP_NA
6
M_SP_NA