6.11
Date Code 20020903
SEL-587Z Instruction Manual
Serial Port Communications
SEL Binary Protocols, Fast Meter, and Fast Operate
SEL Binary Protocols,
Fast Meter, and Fast Operate
Introduction
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. The device connected to the other end of the link requires
software that uses the separate data streams to exploit this feature. 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. The messages
provided in the SEL-587Z are described in the following tables.
Message Lists
Table 6.4
Binary Message List
Request to Relay (hex)
Response From Relay
A5C0
Relay Definition Block
A5C1
Fast Meter Configuration Block
A5D1
Fast Meter Data Block
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
A5B9
Fast Meter Status Acknowledge
A5CE
Fast Operate Configuration Block
A5E0
Fast Operate Remote Bit Control
A5E3
Fast Operate Breaker Control
Table 6.5
ASCII Configuration Message List
Request to Relay (ASCII)
Response From Relay
ID
Firmware ID string (FID), checksum of the ROM code,
Terminal ID Setting (TID), Modbus code, part number
DNA
ASCII Names of Relay Word Bits
BNA
ASCII Names of Bits in the A5B9 Status Byte
Содержание SEL-587Z
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