Sel 551 - Appendix E: Compressed ASCII Commands; Overview; CASCII Command-General Format

Date Code 20110408 Instruction Manual SEL-551 Relay
Appendix E
Compressed ASCII Commands
Overview
The SEL-551 Relay provides Compressed ASCII versions of some relay
ASCII commands. The Compressed ASCII commands allow an external
device to obtain data from the relay, in a format which directly imports into
spreadsheet or database programs, and which can be validated with a
checksum.
The SEL-551 provides the following Compressed ASCII commands:
CASCII Command—General Format
The Compressed ASCII configuration message provides data for an external
computer to extract data from other Compressed ASCII commands. To obtain
the configuration message for the Compressed ASCII commands available in
an SEL relay, type:
CAS <CR>
The relay sends:
<STX> "CAS",n,"yyyy" <CR>
"COMMAND 1",ll,"yyyy" <CR>
"#H","xxxxx","xxxxx",......,"xxxxx","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR>
"COMMAND 2",ll,"yyyy" <CR>
"#h","ddd","ddd",......,"ddd","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR>
•
•
•
•
•
"COMMAND n",ll,"yyyy" <CR>
"#H","xxxxx","xxxxx",......,"xxxxx","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR><ETX>
Command Description
CASCII Configuration message
CSTATUS Status message
CHISTORY History message
CEVENT Event message