MX-2100/2104
Installation and Operation Manual
Chapter 4 Operation
MX-2100 Supervision Language
4-3
Command Protocol
Starting a Session
•
If AUTOBAUD is on, start any session by pressing the ENTER key three times
in sequence. This will ensure identification of terminal data rate.
•
When password protection is on, the displayed prompt is
PASSWORD>
and
the addressed MX-2100 waits for the password before continuing. After the
correct password is received, MX-2100 sends the following working prompt:
KM2100>
for MX-2100
KM2104>
for MX-2104.
If password protection is off, this step is omitted and the working prompt
appears after the node address conditions are fulfilled.
•
The first action to be carried out when starting a session is to check and, if
necessary, set the correct terminal control codes, using the
F
command.
The terminal control codes, determined by the
F
command, are used to clear the
screen, move the cursor to the screen home position, and move the cursor to the
right by one position. Using the terminal control codes suitable for the type of
terminal connected to MX-2100 is essential to proper display of the information
sent by MX-2100 on the terminal screen: certain combinations of codes can lead
to unclear displays.
If the information on your screen is unclear, issue the
INIT F []
command. If
there are no parameters, use the
F
command to set the desired control codes.
Command Evaluation and Execution
•
After the working prompt is displayed, every character typed on the terminal
keyboard is immediately evaluated by MX-2100 and echoed to the terminal
screen. Full duplex communication with the terminal is therefore necessary, to
provide on-line feedback to the terminal operator.
•
Command evaluation starts only when the ENTER key is pressed.
•
Certain commands, mainly DSP commands, are not accepted for the alternate
database.
•
In case an error is detected during command evaluation, the command is not
executed. Instead, MX-2100 will send the erroneous command back to the
terminal, and you will see:
BAD COMMAND OR PARAMETER. TYPE ‘H’ FOR HELP
•
The correct command must then be resent.
•
The command is executed only after it is validated.
•
Command execution can be interrupted by pressing BREAK or CTRL-C. This
will result in the display of the MX-2100 prompt, and a new command can be
entered.