Date Code 20080110 Configuration,
Fast Meter,
and
Fast Operate
Commands D-1
SEL-387E Instruction Manual
APPENDIX D: CONFIGURATION,
FAST METER
, AND
FAST
OPERATE
COMMANDS
I
NTRODUCTION
SEL relays have two separate data streams that share the same serial port. The human data
communications with the relay consist of ASCII character commands and reports that are
intelligible to humans using a terminal or terminal emulation package. The binary data streams
can interrupt the ASCII data stream to obtain information and then allow the ASCII data stream
to continue. This mechanism allows a single communications channel to be used for ASCII
communications (e.g., transmission of a long event report) interleaved with short bursts of binary
data to support fast acquisition of metering data. To exploit this feature, the device connected to
the other end of the link must have software that uses the separate data streams. The binary
commands and ASCII commands can also be accessed by a device that does not interleave the
data streams.
SEL Application Guide AG95-10, Configuration and Fast Meter Messages, is a comprehensive
description of the SEL binary messages. Below is a description of the messages provided in the
SEL-387E Relay.
M
ESSAGE
L
ISTS
Binary Message List
Request to
Relay (hex)
Response From Relay
A5C0 Relay Definition Block
A5C1 Fast Meter Configuration Block
A5D1 Fast Meter Data Block
A5B9 Fast Meter Status Clear Command
A5C2 Demand Fast Meter Configuration Block
A5D2 Demand Fast Meter Data Message
A5C3 Peak Demand Fast Meter Configuration Block
A5D3 Peak Demand Fast Meter Data Message
A5CE Fast Operate Configuration Block
A5E0 Fast Operate Remote Bit Control
A5E3 Fast Operate Breaker Control
A5ED Fast Operate Reset Command
ASCII Configuration Message List
Request to
Relay (ASCII)
Response From Relay
ID ASCII Firmware ID String and Terminal ID Setting (TID)
DNA ASCII Names of Relay Word bits
BNA ASCII Names of bits in the Fast Meter Status Byte
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