Click  "Run Continuous"  button to allow operation of controls.

Note the numerous  "Return Status"  LED's. Whenever one of the
called functions succeeds, the LED will turn green. Failure, or
unattempted, results in a red LED.

Set base address In the "Startup" panel. The available port
addresses can be found in the Model 141 manual.  For debug
information from the DLL, there are three available "debug levels"
that can also be set. When set to zero there is no debug file written.
When set to one, minimum output is performed including any error
conditions that occur in the DLL. When set to two or three additional
output includes results of every conversion and messaging from device
driver. If the Port address or Debug level is changed while initialized,
the application will stop and wait to be re-initialized. When the
"Locate card & Driver"  button is pressed  the DLL checks for the
presence of the card and device driver. If the card is located, a
calibration will be performed and the channel will be set.

The "Setup" panel allows setting averaging and input range. Averaging
is done in software not hardware. Range can be set to Unipolar which
is 0-5 volts or Bipolar -5 to +5 volts. There are two channels available,
0 and 1.

Push  "Get Conversion"  to get  conversions one at a time.

The  "Read Data"  panel includes the ability to set the rate and type
of scan. Note that the scanning rate can be set faster than the 
Model 141's data rate. In that case, the data will be taken
as fast as it is available.  Push  "Start/Stop Scan" to start the scan 
running. The scan will start immediately if in  "Non-triggered Scan"  
mode. If in mode  "Triggered Scan" the scan will start once the 
selected trigger level is detected. The scan will continue to run until 
the button is pushed again to release it.

The  "Misc functions"  panel contains Digital I/O. Push  "Read Digital
input"  to get a digital input. Push the  "Send Digital Output"  to
send digital output  [0-15] anytime while initialized and not scanning.


