Schweitzer Engineering Laboratories SEL-2020 - Page 467

Date Code 20010518 SEL-2020 Message Strings 1
SEL-2020 Instruction Manual
SEL-2020 STRINGS
Special Characters for Use in Strings
Character Use Comment
\" A Quote character. Use to insert a quote character in a string.
\\ A Backslash character. Insert a backslash character in a string.
\n A New line character (CR/LF combination, just CR on SEL IED ports).
\0xx A Insert any 8-bit character.
xx = A character value in hex; (e.g., \004 is ASCII EOT character. See
Appendix D: ASCII Reference Table for ASCII conversion table.)
\<ENTER> A Use this sequence to continue a string to the next line.
\At/ I* Register address.
t= specifies the address format:
b=binary (2 bytes) a=ASCII-hex (4 digits)
\Csx/ O Begin checksum calculation
x specifies checksum type
c=CRC-16
b=8-bit checksum
w=16-bit checksum
\CE/ O Stop checksum calculation
\COyz/ O Output checksum
y specifies format
a=ASCII-hexadecimal
b=binary
x=binary with XON/XOFF encoding
z specifies byte order
h=high byte first
l=low byte first
\DA[C][P]n/ O DA=output unsolicited message queue data for Port n;
C= if included, clear the queue after the read; the data are handled as set of
characters.
P= only output characters not previously output; mutually exclusive with C
parameter.
\Dt/ I* D=data item
or t=specifies the data format:
READACK b=binary word (2 bytes), c=binary bytes (1 byte),
h=ASCII-hex word (4 digits), g=ASCII-hex byte (2 digits).
\Fp:r[;C[A]]/ O F=Output formatted region data.
p= the port number.
r= the data region.
;C= clear archive item after it is read; CA=read the entire queue of records
from an archive region and clear them as they are read.
\Idstr[:h]/ O Initiate a phone call using the given dial string. Only applies to modem ports.
dstr= a dial string of up to 40 characters. Typically consists of ATDT and
phone number.
h= hang up flag. Y to hang up at end of message, N to stay on-line.
\M O Issue modem escape sequence. Only applies to modem ports.
\Pt/ I* P=Port number
t=specifies the port number format:
b=binary (1 byte), a=ASCII-hex (2 digits)