General Dynamics CG-1220, Operation And Maintenance Manual

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Appendix C– DTR Remote M&C Protocol CG-6073 (Rev R, June, 2012)
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3.0 GENERAL PROTOCOL
The general format for transactions being sent to and from the DTR M&C interface
is described below.
Format for sending a command is:
command [arguments]<CR>
Format for information returned is:
[data)] [(newline)(data)] ... [[(newline)]
(error message)]prompt
1.
command - May be a Keyword, or menu item name or number. Items are
numbered 0 to n-1, where n is the number of items in the menu. Note that
some menu items may not be available depending on system configuration.
2.
[arguments] - 0 or more space-separated fields which are actually arguments
to the command. These are command-specific.
3.
<CR> - ASCII carriage return (ASCII 13 decimal). Note that the DTR M&C
expects only a carriage return; line feeds are not permitted.
4.
(newline) - User-definable: either CR (ASCII 13 decimal) or CRLF: (ASCII 13
and ADCII10 decimal). If a command returns data as part of its action, then
each line of data is preceded by a (newline), except for the first line.
6.
(error message) - Error message from the preceding command. Depending
on error status and user-definable options, there may or may not be an error
message. Most error messages are preceded with a (newline) as defined
previously. Error messages are described in Section 3.2.
Argument fields sent to the M&C shell must always be separated by at least one
space (ASCII 32 decimal).
The command and all (if any) arguments are individual fields. Note that more than
one command may be issued on the same command line, as long as the maximum
input length of 80 characters is not exceeded; however, output from those
commands may be on the same line.