Sutron Corporation X-Link Operations & Maintenance Manual, Rev 1.63 5/24/2016 pg. 129
While it is not recommended, changing the baud rate can be done by typing
BAUD RATE. The default baud rate is 115200.
With the terminal program, if the emulation is set for VT100, pressing the up
arrow brings back the last typed command.
14.3.
Sending Messages
Messages can be sent to the station remotely. Messages are treated like
command line input with a few differences. Some commands cannot be
executed via a message. Other commands may have a differently formatted
output (in order to reduce message size).
GPRSLink, HSPALink, and CDMALink can receive SMS (text messages).
IRIDIUMLink can have messages sent to via emails that get routed through the
Iridium system. (See 141.)
The last message received since boot up can be viewed via the front panel, under
the diagnostics menu.
When X-Link receives a message, it handles the input just as if it were on the
commands. For example, issuing the command M1 ACTIVE = OFF would turn off
measurement one. Normally, X-Link executes the command and provides no
feedback.
If X-Link needs to reply to the message it received, the command in the
message must be preceded with an exclamation point. For example, sending a
message with the data
M1 MEAS
will not cause X-Link to send a reply message. Sending
! M1 MEAS
will cause X-Link to send a reply. Sending
STATUS
will do nothing. To get the status, precede the command with a !
!STATUS
Several commands can be sent in the same message. Separate the command
with a new line or with a semicolon:
!M1 MEAS; !STATUS;
A password-protected X-Link requires that the first line of the message be the
LOGIN command. Here is a message telling X-Link to turn off the digital output 1
and return the status:
LOGIN=XXX; OUTPUT1 OFF; !STATUS
