Guralp Systems CMG-DM16R8, Operating Manual

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CMG-DM16
to connect to the DM16.
Whilst you are in terminal mode, data transfer will be
interrupted; the digitizer may use any Flash memory as a
temporary store, depending on how you have configured it.
Some commands, such as
SET-TAPS
, require a reboot to take
effect.
Güralp DCM and AM modules also allow you to send commands
direct to the digitizer using the command-line tool
gcli
. For
more information, please see the manual for your data module.
If you have problems connecting to the digitizer's console, you
should check that the serial port's options and baud rate are
set correctly in Scream! or your terminal program. As supplied,
the DM16 expects connections at 38400 baud, with 8 data bits,
no parity bit and 1 stop bit. No flow control is used.
FORTH
The DM16 uses FORTH to implement its features. To issue a
command in FORTH, you must supply the arguments
before the
command, for example:
3 SENSOR-TYPE
In FORTH, anything you enter is termed a word . New words
(case insensitive) are placed on a stack. Some words are known
to the system, and may represent commands; if a command
finds itself at the top of the stack (
e.g.
because it is the last
thing you typed), they will execute, remove themselves from
the stack, and then remove further items from the stack to use
as arguments. Thus, in the command
3 SENSOR-TYPE
the 3 has no immediate effect, so stays on the stack;
SENSOR-
TYPE
takes itself and the previous item (here
3
) off the stack,
then performs its action on the
3
(here, setting the configured
sensor type to 3, representing a CMG-3T sensor.)
If a command completes with nothing remaining on the stack,
the digitizer will show the prompt
ok
. Otherwise, the prompt
will remind you that the digitizer is waiting for you to complete
the command. Some commands, such as
SAMPLES/SEC
, clear
the stack automatically after they execute.
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