Smiths TRAK 9100, Техническое руководство

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TRAK MODEL 9100 MODULAR FREQUENCY/TIME SYSTEM
3-10
TM4400013 Rev D
3.5 REMOTE OPERATION
The Model 9100 can be setup and monitored remotely through the RS-232 I/O or 10 BASE T using TELNET.
There are two modes that can be set; one is the “Local Echo” mode where each character that is input is
echoed back to the host. The second is the “Computer” mode where the input characters are not echoed. The
“computer” is the default mode.
3-5.1 Computer Mode
The Computer Mode is the default mode of RS-232 communications port and is used when controlling the
Model 9100 from a remote computer. No echoing of input commands is given, and the once-per-second time
output, if commanded, is active, when enabled. When writing interface programs, do not issue three or more
successive carriage return <CR> commands. This will switch the port communications mode to Local Echo. To
reenter the Computer Mode after using the Local Echo mode, issue a control <^E>.
3-5.2 Local
Echo Mode
Use this mode when controlling the Model 9100 from a terminal program such as Hyper Terminal. Enter the
Local Echo Mode by typing three successive carriage returns <CR>. 9100> prompt is displayed in this mode,
and all input key strokes are echoed to the screen. While in the Local Echo mode, once-per-second time outputs
from this port are suspended. To exit this mode, type a control E <^E>.
NOTE
Before attempting to use the RS-232 port, assure that the remote computer or terminal is set to 9600
baud, 8 data bits, 1-stop bit and no parity.
3-5.3 Remote Interface Commands
The following section contains a list and description of all remote interface commands. Request commands are
prefixed with “RQ” and return status. Setup commands are prefixed with ”S” and allow system parameter
changes by writing data in the parameter field. All commands are initiated from the host computer. All entries
must be terminated with a carriage return <CR>. The Model 9100 will respond with a <CR> and a <LF>.
The setup commands will reply with the command and “DONE” if the command and the data received is valid. If
the command or data is not valid, the command replies with the setup command that was issued and “ERROR”.
Setup commands can also be used for status if no data is sent.
Commands can be directed to a specific GPS Reference module. These commands are prefixed with an “X”,
where “X” is an “A” for the primary GPS Reference module and “B” for the backup GPS Reference module.
Omitting the “X” prefix will cause different results, depending on the command is being used in the setup mode
or request mode. If the “X” prefix is omitted, and the command is in the request mode, it will be directed to the
on-line module. If the “X” prefix is omitted, and the command is in the set mode, it will be directed to both
modules. The response will always contain the “X” parameter, indicating which module responded to the
command. If the response is caused by a command that was sent to both modules, the “X” parameter will be ‘D’.
Commands that have this capability are prefixed with an “X” in the command description.