Schweitzer Engineering Laboratories SEL-351-5, Instruction Manual

Page: 612 / 706

D.14
SEL-351-5, -6, -7 Relay Instruction Manual
Date Code 20070117
Configuration, Fast Meter, and Fast Operate Commands
Message Definitions
Messages for other relay models may be derived from the appropriate tables in
Section 9: Setting the Relay , using the above format.
BNA Message
In response to the BNA command, the relay sends names of the bits
transmitted in the Status Byte in the A5D1 message. The first name is the
MSB, the last name is the LSB. The BNA message is:
<STX>"*","*","*","STSET","*","*","*","*","yyyy"<CR><LF><ETX>
The BNA command is available from Access Level 1 and higher.
SNS Message
In response to the SNS command, the relay sends the name string of the SER
(SER1 SER2 SER3) 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 and SER3.
For example: If SER1 = 50A1 OUT101; SER2 = 67P1T 81D1T; SER3 =
OUT102 52A; the name string will be
"50A1","OUT101","67P1T","81D1T","OUT102","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
carriage return. The last row may have less than eight strings.
SNS message for the SEL-351 is:
<STX>"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR><LF>
"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR><LF>
"xxxx","xxxx","xxxx", <CR><LF><ETX>
where:
<STX> is the STX character (02)
<ETX>
is the ETX character (03)
yyyy
(the last field
in each line)
is the 4-byte ASCII hex representation of the
checksum for the line
*
indicates an unused bit location
where:
yyyy
is the 4-byte ASCII representation of the checksum
* indicates an unused bit location
where:
xxxx is a string from the settings in SER (SER1, SER2 and
SER3)
yyyy is the 4-byte ASCII representation of the checksum