Date Code 20080110 Configuration,
Fast Meter,
and
Fast Operate
Commands D-11
SEL-387E Instruction Manual
BNA Command
In response to the BNA command, the relay sends the names of the bits transmitted in the Status
Byte of the Fast Meter messages (A5D1, A5D2, and A5D3) as shown below:
<STX> (STX character, 02)
"*","*","*","STSET","STFAIL","STWARN","*","*","yyyy"<CR>
<ETX> (ETX character, 03)
where yyyy is the 4-byte ASCII representation of the hex checksum for the line.
The bits named are defined as follows:
• STSET Set when a power-up or settings change has occurred. It is cleared by the
A5B9 request (see earlier in this Appendix).
• STFAIL One or more of the monitored status quantities is in a FAIL state.
• STWARN One or more of the monitored status quantities is in a WARN state.
SNS Message
In response to the SNS command, the relay sends the name string of the SER (SER1, SER2,
SER3, and SER4) settings. The SNS command is available at Access Level 1.
The relay responds to the SNS command with the name string in the SER settings. The name
string starts with SER1, followed by SER2, SER3, and SER4.
For example: If SER1 = 50P11 OUT101; SER2 = 87U1 32IF; SER3 = OUT102 52A, SER4 = 0;
the name string will be "50P11","OUT101","87U1","32IF","OUT02","52A".
If there are more than eight settings in SER, the SNS message will have several rows. Each row
will have eight strings, followed by the checksum and cartridge return. The last row may have
fewer than eight strings.
The ALIAS settings are ignored for the SNS command (i.e., if ALIAS1 = OUT101 CL_BKR_1,
SNS includes "OUT101", not the custom label). Refer to Settings in Section 6: Settings.
SNS message for the SEL-387E is:
<STX>"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR>
"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR>
"xxxx","xxxx","xxxx",<CR><ETX>
where: xxxx is a string from the settings in SER (SER1, SER2, SER3, and SER4)
yyyy is the 4-byte ASCII representation of the checksum
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