Version 2.0 Information		14-Dec-00


Differences between version 1.0 and 2.0:

1) Function generators do not have the time creep problem anymore.

2) The Data Recorder now has digital anti-aliasing filters.

3) Delay around the loop has been reduced by two sample periods,
because all processing is contained in a single processor instead
of four processors as in the old version.  Control will be a little
tighter.

4) Run synchronization with Data Recorder is now done at the
realtime level, allowing perfect synchronization.

5) The efficiency of the algorithm for the deglitching median
filter has been dramatically improved, from order n^2 to order n.

6) Digital Meter peak/valley time mode now works.

7) A/D's and D/A's are now in separate panels, and location 
information is displayed.

8) "Main Med" button added to main panel to enable new hydraulics
low pressure/high flow mode.

9) Logic added to prevent compression controller integrator windup,
and to reset it.


Editing old settings files for use in the new version:

1) Delete "dsp" section.

2) Delete window location section.


Inaccuracies in the functional block diagram:

1) On page 7, upper left corner, the input to "limPri1" and "limPri2"
is shown to be displacement feedback.  Instead, the long/lat function
generator's pre-span/setpoint output "xout" is connected instead.  This
was probably done to provide a noise-free signal for switching when using
the load-limited stroke mode.

2) On page 9, the median filter "medDFbkC" is shown to the left of a/d
scaling device "adcDFbkC".  In reality, "adcDFbkC" comes first, then
"medDFbkC".


