DNP3 Event Queue Setting
Original instructions
Event Queue Setting Page
This figure shows the dialog box for configuring the event queue setting for an item with the example data type Binary_Input for DNP3 slave/server:
This figure shows the dialog box for configuring the event queue setting:
Parameter
Value scope
Default value
Description
Event Store Mode
All/Most Recent
All
stores all event in queue or only stores most recent event for each object
Buffer Setting
All Channels, By Channel
All Channels
specifies whether the buffer size is configured by channel or not; all channels support up to 10,000 events
Max Event Count
1...65535
100
supported event count by channel; in whole, up to 100,000 events are supported
Max Event Count-n
0...65535
1
supports event count for virtual channel #n
CPU Reg Type
%MW
%MW
status register type in CPU
CPU Reg Address
0...32464
0
address of event status register in CPU
Event Backup
checked/ unchecked
unchecked
what is backed up in event of power loss
NOTE: When BMXNOR0200H module uses IEC/DPN3 server or slave, the events status is mapped into CPU Register Address. One event status occupies two %MW. The first %MW is for event number and the second is used to save overflow bits. If the number of channels is more than one, the events of virtual channel follows the first channel event status.
Example of the setting of the event status:
  • Channel Count: 2
  • CPU Reg Address: 1000
  • Channel 0 Event Status: %MW1000/%MW1001
  • Channel 1 Event Status: %MW1002/%MW1003