PULSAR MEASUREMENT
41
In
automatic
mode, the rate at which the level moves up and down is set by
the increment (P981 in metres, and the
rate
(
P*982
) in minutes, which can
be changed to make the level move up and down faster. E.g. if
increment
(P*981) is set for 0.1m and
rate
(P*982) is set to 1 min then the level will
increase or decrease at a rate of 0.1m/min. To make the simulated level
move slower, decrease the value in
increment
(P*981) or increase the value
in
rate
(P*982). To make the simulated level move faster, increase the value
in
increment
(P*981) or decrease the value in
rate
(P*982).
Using the Serial Interface
The RS232 serial interface is used to communicate between the UltraTWIN
and a PC using the optional Ultra PC and other associated Pulsar software
packages, to obtain information such as data logging and view echo traces
upload, download and save parameter files. In addition, it can also be used
to control or obtain information using a standard PC or other computer base
equipment. To do so, the settings for control are as follows:
baud rate
19,200
,
8 data bits
,
no parity
,
1 stop bit
.
The device should be connected as shown in
To use the device remotely, you need to
log on
to start, and
log off
when
finished. When
logged on
, the UltraTWIN
will show ‘
Remote ON
’ o
n the
display, and “
Communicator OFF
” when
logged off
.
All commands should be followed by a carriage return
. When logged on, the
unit will respond either OK (or a value) if the command is accepted, or NO if
it is not.
To log on, send the command
/ACCESS:pppp where pppp is the passcode (P922).
To log off, send the command
/ACCESS:OFF
To read a parameter value, send the command
/Pxxx where xxx is the parameter you wish to read, and the UltraTWIN will
respond with the parameter value.
To set a parameter, send the command
/Pxxx:yy where xxx is the parameter number, and yy is the value you wish to
set it to.
