ProSoft Technology MVI56-101S - Manual (Page 104)

Reference MVI56-101S ♦ ControlLogix Platform
User Manual IEC 60870-5-101 Slave Communication Module
Page 104 of 193 ProSoft Technology, Inc.
August 2, 2011
The structure of each event record in the block is shown in the following table.
Word Offset in Event
Record Data Field(s) Description
0 DB Index This is the index for the point in the module’s database.
This corresponds to the order of point definition for the
module data types. This is not the point address for the
event.
1 ASDU This is the ASDU data type for the event message.
Valid entries for this field are as follows:
1=single point
3=double-point
5=step
9-normalized
11=scaled
15= integrated total
2 Qualifier This is the qualifier code for the event message. Refer
to the IEC protocol specification for a full listing of
qualifier codes for each ASDU type.
3 Year This field contains the four-digit year for the event.
4 Month This field contains the month value for the event. Valid
entry for this field is in the range of 1 to 12.
5 Day This field contains the day value for the event. Valid
entries for this field are in the range of 1 to 31.
6 Hour This field contains the hour value for the event. Valid
entries for this field are in the range of 0 to 23.
7 Minute This field contains the minute value for the event. Valid
entries for this field are in the range of 0 to 59.
8 Seconds and
Milliseconds This field contains the seconds and milliseconds value
for the event. Valid entries for this field are in the range
of 0 to 59999.
9 to 14 Data These words contain the data for the event. For single-
and double-point, step and measured value events, the
first word is used. For integrated total events, the first
two words are used.