Sel 551 - Message Definitions

D.2
SEL-551 Relay Instruction Manual Date Code 20110408
Configuration, Fast Meter, and Fast Operate Commands
Message Definitions
Message Definitions
A5C0 Relay Definition
Block
In response to the A5C0 request, the relay sends the following block:
A5C1 Fast Meter
Configuration Block
In response to the A5C1 request, the relay sends the following block:
Table D.2 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 A5B9 Status Byte
Table D.3 A5C0 Relay Definition Block
Data Description
A5C0 Command
30 Length
02 Support two protocols, SEL and LMD
03 Support three Fast Meter messages
03 Three status flag commands
A5C1 Fast Meter configuration command
A5D1 Fast Meter command
A5C2 Demand Fast Meter configuration command
A5D2 Demand Fast Meter command
A5C3 Peak Demand Fast Meter configuration command
A5D3 Peak Demand Fast Meter command
0004 Settings change bit
A5C100000000 Fast Meter configuration message
0004 Settings change bit
A5C200000000 Demand Fast Meter configuration message
0004 Settings change bit
A5C300000000 Peak Demand Fast Meter configuration message
0100 SEL protocol, Fast Operate
0101 LMD protocol, Fast Operate
00 Reserved
checksum 1-byte checksum of preceding bytes
Table D.4 A5C1 Fast Meter Configuration Block (Sheet 1 of 2)
Data Description
A5C1 Fast Meter command
48 Length
01 One status flag byte
00 Scale factors in Fast Meter message
02 Two scale factors