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User_Manual
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1997-10-31
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xlv User Manual 20-April-95
1.0 Installation
-----------------
The first thing to do is to copy the file "Xlv" to your top level or
home directory. This is the app-defaults file, and if it is not in the
right place, the fonts & colors & labels will not look right. If the
text looks like it is 'courier', then the Xlv app-defs has not been loaded.
If the font is 'times' then you should be ok. (You can also copy it to
a .desktop directory to avoid having a cluttered home directory.)
2.0 Getting Started
--------------------
Before you can do anything, you have to go to the File menu and
OPEN the serial port. This also causes a 'T' to be sent to the LV824.
If no response from the LV is found, then the program will tell you
there is a problem communicating, and list some possible causes. This
command is now available from a push button in the lower right corner.
Then go to the Config menu and choose CerealBox. This allows you to
configure which analog inputs to sample, which digital channels are to
be sampled, and for the LV824-F/G which digital channels are outputs, and
for the LV824-G which analog outputs are active.
Press OK to save the configuration or Cancel to ignore the changes.
The menu items for FlyBox and BeeBox configure the LV to be used
with those devices.
Once the LV has been configured, choose INIT from the File menu. This
sends the setup/config information to the LV and allows you to sample.
Again, this command can be issued by pushing the button at the lower
right. Once this has been pushed, the RUN button is active.
3.0 Sampling
-------------
Either choose RUN from the Commands menu, or push the button labled
Run. This causes the LV to be sampled, and the data is displayed. For
the analog inputs, the value is shown by the "thermometer" scaled between
-1.0 and 1.0. Discrete inputs are green when high, blue when low, and
grey when off. Discrete outputs show up as toggle buttons. Pushing the
button changes the state of the dig output, and when it is yellow in the
middle it represents the high state. Analog outputs are set by moving
the horizontal sliders. The scale here is in volts.
To stop sampling, push the Stop button, or choose stop from the Commands
menu. Note that to change configuration you should stop sampling.
4.0 Prefs
----------
When you quit the program, the current configuration is saved in the
working dirctory in a file '.xlv_config'. This file is read in at
startup, so that your last setup is ready to go.
5.0 Changing the Colors
------------------------
Some of the colors can be changed by editing the Xlv app-defaults file.
This should be done carefully, unless you are very familiar with X11
resources (and even then you need to know something about the widget
hierarchy.)
-- John Green
BG Systems
Comments to:
jgreen@netcom.com