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D.20
SEL-787 Relay
Instruction Manual
Date Code 20081022
DNP3 Communications
DNP3 Documentation
In response to the delay measurement function code, the SEL-787 will return
a time delay accurate to within 50 milliseconds.
Object List
lists the objects and variations with supported function codes and
qualifier codes available in the SEL-787. The list of supported objects
conforms to the format laid out in the DNP specifications and includes both
supported and unsupported objects. Those that are supported include the
function and qualifier codes. The objects that are not supported are shown
without any corresponding function and qualifier codes.
Sends unsolicited responses
Configurable with unsolicited message
enable settings. Increases retry time
(configurable) when a maximum retry
setting is exceeded.
Sends static data in unsolicited responses
Never
Default counter object/variation
Object 20, Variation 6
Counter roll-over
16 bits
Sends multifragment responses
No
Table D.10
SEL-787 DNP3 Device Profile
(Sheet 2 of 2)
Parameter
Value
Table D.11
SEL-787 DNP Object List
(Sheet 1 of 5)
Obj. Var.
Description
Request
a
Response
b
Funct. Codes
c
Qual. Codes
d
Funct. Codes
Qual. Codes
1
0
Binary Input—All Variations
1
0, 1, 6, 7, 8, 17, 28
1
1
Binary Input
1
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
1
2
e
Binary Input With Status
1
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
2
0
Binary Input Change—All Variations
1
6, 7, 8
2
1
Binary Input Change Without Time
1
6, 7, 8
129
17, 28
2
2
Binary Input Change With Time
1
6, 7, 8
129, 130
17, 28
2
3
Binary Input Change With Relative Time
1
6, 7, 8
129
17, 28
10
0
Binary Output—All Variations
1
0, 1, 6, 7, 8
10
1
Binary Output
10
2
Binary Output Status
1
0, 1, 6, 7, 8
129
0, 1
12
0
Control Block—All Variations
12
1
Control Relay Output Block
3, 4, 5, 6
17, 28
129
echo of request
12
2
Pattern Control Block
12
3
Pattern Mask
20
0
Binary Counter—All Variations
1, 7, 8, 9, 10
0, 1, 6, 7, 8, 17, 28
20
1
32-Bit Binary Counter
1, 7, 8, 9, 10
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
20
2
16-Bit Binary Counter
1, 7, 8, 9, 10
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
20
3
32-Bit Delta Counter
20
4
16-Bit Delta Counter
20
5
32-Bit Binary Counter Without Flag
1, 7, 8, 9, 10
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
20
6
16-Bit Binary Counter Without Flag
1, 7, 8, 9, 10
0, 1, 6, 7, 8, 17, 28
129
0, 1, 17, 28
20
7
32-Bit Delta Counter Without Flag
Summary of Contents for SEL-787
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