932512A / 0114
ORTEC
®
EASY-NIM
™
928 Suite
11
Figure 11. Easy NIM Application Setup Screen.
Reset input
— Trigger a counter reset from (1) the Easy NIM main screen with the
Software Individual Reset
setting,
(2) a “clear MCB spectrum memory” command from the MCB (Model 928 only) with the
MCB Clear Command
reset,
or (3) a signal from any of the six front-panel inputs; or (4) simultaneously reset a group of counters or counters and
timers with the Group 1 or 2 reset signal.
Enable input
— The
Software Control
option lets you start and stop the counter from the Easy NIM application main
screen (Figure 12).
MCB Active
starts the counter when the MCB begins data acquisition (Model 928 only).
Software
Group n Enable
(n = 1 or 2) starts all counters for the specified group when the corresponding timer or output “group
enable” signal is issued.
Auto reset
— When this box is marked, the counter counts up to overflow (4294967295 counts) then automatically
resets to zero and continues to count up.
Fifo
— Click this button to display the values stored in the FIFO (first in first out buffer; see Figure 13) to a maximum of
256 entries. The FIFO is designed for the “Continuous Mode” scenario where a timer interval is selected as the
Gate
input
and
Auto Reset
is selected for both the counter and the timer. The counter value is pushed to the FIFO
whenever a manual reset or auto-reset signal sets the Gate input low. The FIFO can be read from a user-written
program. In addition, you can click the
Fifo...
button to view the current FIFO contents at any time.
Note that if you
wish to save the current FIFO contents as an ASCII text file
(Figure 14)
, you must do so before closing the Fifo Display
dialog, otherwise the list will be deleted on close.
If you wish, you can leave the Fifo Display dialog open and
periodically click the
Refresh
button to update the list. Again, if you do not save the current contents before closing
the dialog, they will be lost.
