Date Code 20020129
Distributed Network Protocol (DNP) 3.00
G-17
SEL-387E Instruction Manual
Relay Summary Event Data
Whenever there is unread relay event summary data (fault data), binary input point 1619 will be
set. In order to load the next available relay event summary, the master should pulse binary
output point 41. This will cause the event summary analogs (points 159–177) to be loaded with
information from the next oldest relay event summary. Since the summary data is stored in a
first-in, first-out manner, loading the next event will cause the data from the previous load to be
discarded. The event summary analogs will retain this information until the next event is loaded.
If no further event summaries are available, attempting to load the next event will cause the
event type analog (point 159) to be set to 0.
P
OINT
R
EMAPPING
Introduction
The
DNP
command is available to view and remap the DNP data. This command is available at
level 1 for viewing data, but only from level 2 can it be used to remap the DNP map.
Inputs
Command Syntax:
DNP [A|B|S|T]
DNP [AI|AO|BI|BO|C] [VIEW]
The DNP analog input, analog output, counter, binary output, and binary input points may be
remapped via the
DNP
command. The map is composed of five lists of indices: one for the
analog inputs (30 and 32), one for the binary inputs (1 one 2), one for the binary outputs (10 and
12), one for the analog outputs (40 and 41), and the other for the counters (20 and 22). The
indices correspond to those given by the relay's DNP data map. The order in which they occur in
the list determines the index that the corresponding value is reported to the DNP master. If a
value is not in the list, it is not available to the DNP master. All points of the corresponding type
may be included in the list, but must only occur once. The maps are stored in nonvolatile
memory and are protected with a checksum. The
DNP
command is only available if DNP has
been selected on one of the ports.
If the
DNP
command is issued without parameters, the relay displays all of the maps with the
following format:
=>DNP<ENTER>
Binary Inputs = Default Map
Binary Outputs = Default Map
Counters = Default Map
Analog Inputs = 112 28 17 35 1 56 57 58 59 60 61 62 63 64 65 \
66 67 100 101 102 103
Analog Outputs = Off
=>
If the
DNP
command is issued with an object type specified (AI, AO, BI, BO, C) and the VIEW
parameter, the relay displays only the corresponding map. The S parameter is equivalent to
AI VIEW and the T parameter is equivalent to BI VIEW; they are available for consistency with
