ProSoft Technology MVI69-DNPSNET - Manual (Page 74)

MVI69-DNPSNET ♦ CompactLogix or MicroLogix Platform Reference
Distributed Network Protocol Interface Module
Page 74 of 119 ProSoft Technology, Inc.
November 3, 2008
Block Format for Write
Word Offset in
Block Data Field(s) Description
0 Block ID This field contains the value of 9958 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 11.
2 Sequence Counter This field holds the sequence counter for each
9958 block transfer. This synchronizes and
confirms receipt of the block by the module.
3 DNP Binary Input Data
point This is the data point in the DNP binary input
database represented by the event.
4 Month/Day/State Formatted: bits 0 to 4 = Day, bits 8 to 11 =
Month, bit 15 = digital state for point. All other
bits are ignored.
5 Hour/Minute Formatted: bits 0 to 5 = Minutes, bits 8 to 12 =
Hour. All other bits are ignored.
6 Sec/Millisecond Formatted: bits 0 to 9 = Milliseconds, bits 10 to
15 = Seconds.
7 Year This is the four digit year for the event.
8 to 12 Five words of data for Event #2.
13 to 17 Five words of data for Event #3.
18 to 22 Five words of data for Event #4.
23 to 27 Five words of data for Event #5.
28 to 32 Five words of data for Event #6.
33 to 37 Five words of data for Event #7.
38 to 42 Five words of data for Event #8.
43 to 47 Five words of data for Event #9.
48 to 52 Five words of data for Event #10.
53 to 57 Five words of data for Event #11.
58 to n Spare Not Used
To ensure the receipt of this block of information, the module returns a block
9958 with the sequence counter set to the value of the last successful block 9958
received.
Block Format for Read
Word Offset in
Block Data Field(s) Description
0 Block ID Identification code for block set to 9958.
1 Block ID Block identification code for request from PLC by
the module.
2 Event Count This field contains the number of events
processed by the module.
3 Sequence Counter This field contains the sequence counter of the
last successful block 9958 received.
4 to n Spare Not used