Schweitzer Engineering Laboratories SEL-387E - Appendix E: Compressed Ascii Commands; Introduction

Date Code 20080110 Compressed ASCII Commands E-1
SEL-387E Instruction Manual
APPENDIX E: COMPRESSED ASCII COMMANDS
I NTRODUCTION
The SEL-387E Relay provides Compressed ASCII versions of some of the relay’s 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-387E Relay provides the following Compressed ASCII commands:
Command
Description
CAS
CII Configuration message
CBR
EAKER Breaker report
CEV
ENT Event report (Winding)
CEV
ENT DIF Event report (Differential)
CHI
STORY History report
CST
ATUS Status report
CTA
RGET Target display
CASCII C OMMAND —G ENERAL F ORMAT
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 <Enter>
The relay sends:
<STX"”CAS",n,"yyyy" <CR>
"COMMAND 1",l1,"yyyy" <CR>
"#H","xxxxx","xxxxx",......,"xxxxx","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR>
"COMMAND 2",l1,"yyyy" <CR>
"#h","ddd","ddd",......,"ddd","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR>
•
•
•
"COMMAND n",l1,"yyyy" <CR>
"#H","xxxxx","xxxxx",......,"xxxxx","yyyy" <CR>
"#D","ddd","ddd","ddd","ddd",......,"ddd","yyyy" <CR><ETX>
where n is the number of Compressed ASCII command descriptions to follow.
COMMAND is the ASCII name for the Compressed ASCII command as sent by the
requesting device. The naming convention for the Compressed ASCII commands is a