7.4
SEL-587Z Instruction Manual Date Code 20020903
ASCII Command Reference
Command Definitions
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>
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"COMMAND n",ll,"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 “C” preceding the typical command. For example,
CSTATUS (abbreviated to CST) is the compressed STATUS command.
ll is the minimum access level at which the command is available.
#H identifies a header line to precede one or more data lines; '#' is the
number of subsequent ASCII names. For example, "21H" identifies a
header line with 21 ASCII labels.
#h identifies a header line to precede one or more data lines; '#' is the
number of subsequent format fields. For example, "8h" identifies a header
line with 8 format fields.
xxxxx is an ASCII name for corresponding data on following data lines.
Maximum ASCII name width is 10 characters.
#D identifies a data format line; '#' is the maximum number of subsequent
data lines.
ddd identifies a format field containing one of the following type
designators:
IInteger data
F Floating point data
mS String of maximum m characters (e.g., 10S for a
10-character string)
yyyy is the 4-byte hex ASCII representation of the checksum.
A Compressed ASCII command may require multiple header and data
configuration lines.
If a Compressed ASCII request is made for data that are not available, (e.g.,
the history buffer is empty or invalid event request), the relay responds:
“STX>"No Data Available","0668"<CR><ETX>.
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