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Appendix E DNP3 Device Profile
D03283R01.10 TESLA LITE User Manual Appendix E-27
* Object 110 and 111 are Octet String Object used to provide access to the
Event Log text of the relay. Object 110 always contains the most recent event
in the relay. Object 111 is the corresponding change event object.
As stated in the DNP specifications, the variation of the response object repre-
sents the length of the string. The string represents the ASCII values of the
event text. The first two characters in the string can be used to quickly identify
fault location events. Fault locator events begin with the characters "FL"
(0x46, 0x4C hex). The following example shows a fault distance event re-
turned through either of the octet string objects:
Event Message:
2.4 Octet String Points
Static (Steady-State) Group Number: 110
Event Group Number: 111
Capabilities Current Value
If configurable,
list methods
2.4.1 Event reporting mode *:  Only most recent
 All events
2.4.2 Octet Strings Included
in Class 0 response:  Always
 Never
 Only if point is assigned to Class 1, 2, or 3
 Based on point Index (add column to table
below)
2.4.3 Definition of Octet
String Point List:  Fixed, list shown in table below
 Configurable (current list may be shown in table
below)
 Other, explain Used for Event Log access as
described below
FL2000Sep21 20:16:16.966: Line 16:FLoc BG 39.7 miles
DNP Octet string object components:
0x46 0x4C 0x32 0x30 0x30 030x
0x53 0x65 0x70 0x32 0x31 0x20
0x33 0x30 0x3A 0x31 0x36 0x3A
0x31 0x36 0x2E 0x39 0x36 0x36
0x20 0x3A 0x20 0x4C 0x69 0x6E
0x65 0x20 0x31 0x36 0x3A 0x46
0x4C 0x6F 0x63 0x20 0x42 0x47
0x20 0x33 0x39 0x2E 0x37 0x20
0x6D 0x69 0x6C 0x65 0x73