MVI56-DNP
♦
ControlLogix Platform
Reference
DNP 3.0 Server
User Manual
ProSoft Technology, Inc.
Page 125 of 171
July 21, 2011
The sequence counter field in the returned block is set to the last successfully
processed block 9958 from the ControlLogix processor. Compare this value to
that sent by the ControlLogix processor. If the values match, the events can be
removed from the ControlLogix processor. If the values do not match, or the
ControlLogix processor does not receive a 9958 block, the ControlLogix
processor must re-send the block.
Analog Input Event Block (9959)
If the ControlLogix processor sends a block 9959, the module will place the
analog input event data in the block into the event buffer and alter the data
values for the points in the DNP analog input database.
Word Offset in
Block
Data Field(s)
Description
0 Block
ID
This field contains the value of 9959 identifying the event
block to the module.
1 Event
Count
This field contains the number of events contained in the
block. Valid values for this field are 1 to 10.
2 Sequence
Counter
This field is used to hold the sequence counter for each
9959 block transfer. This is used to synchronize and
confirm receipt of the block by the module.
3
DNP Analog Input
Data point
This is the data point in the DNP analog input database
represented by the event.
4
Analog Input Value
This is the new analog input value represented in the
event.
5 Month/Day
Formatted: bits 0 to 4 = Day, bits 8 to 11 = Month. All
other bits are ignored.
6 Hour/Minute
Formatted: bits 0 to 5 = Minutes, bits 8 to 12 = Hour. All
other bits are ignored.
7 Sec/Millisecond
Formatted: bits 0 to 9 = Milliseconds, bits 10 to 15 =
Seconds.
8 Year
This is the four digit year for the event (0-4095). Bits 12
and 13 can contain the class override values of 1 to 3.
9 to 14
Six words of data for Event #2.
15 to 20
Six words of data for Event #3.
21 to 26
Six words of data for Event #4.
27 to 32
Six words of data for Event #5.
33 to 38
Six words of data for Event #6.
39 to 44
Six words of data for Event #7.
45 to 50
Six words of data for Event #8.
51 to 56
Six words of data for Event #9.
57 to 62
Six words of data for Event #10.
63 to 247
Spare
Not Used
