932512A / 0114
ORTEC
®
EASY-NIM
™
928 Suite
19
Figure 24. Setup for the Second 928.
3.3.7.
Example 3: One 928, Four Tasks
This example highlights the EASY-NIM 928’s versatility. Figure 25 shows one 928 configured for four separate tasks
(which can be run concurrently if you wish):
1) A one-counter/one-timer group that also controls the counters on additional 928s.
2) A second group composed of one counter and one timer.
3) An individual (i.e., ungrouped) counter triggered by MCB start/stop/clear commands.
4) An individual counter triggered from the main Easy NIM screen.
3.3.7.1.
S
ETUP FOR
T
ASK
1
In this example, Counter 1 and Timer 1 of a 928 are ganged as Group 2, and the four counters from a second 928 are
added to the group. All counters and the timer are controlled by the Group 2 enable/disable/reset buttons on the
main screen for the
first 928
. At the end of each acquisition period, acquisition stops until manually restarted. In order
to use the first 928 to control the counters on a second 928, the two MCBs must be cabled together as shown in
Figure 26. For clarity, this illustration shows only the external connections for the Group 2 setup.
4
For the first 928:
●
The Counter 1 source is the
Counter 1 input
and the Counter 1 Input is configured for the type of external
signal on the corresponding counter input BNC.
●
The
Gate input
is set to
Timer 1 Interval
.
●
Because this is Group 2, both
Reset Input
s are set to
Group 2 Reset
, and both
Enable input
s are set to
Software Group 2 Enable
.
Auto reset
is
not
marked.
●
The Timer 1
Time base
and
Time preset
have been selected for a total acquisition time of 10 seconds, and
Auto reset
is
not
marked.
●
The final step is to set Output 1 to
Group 2 Reset
and Output 2 to
Group 2 Enable
.
4
To configure the second 928 to control the counters on a third 928, adjust the third unit’s settings to match those in Figure 27,
and cable the inputs and outputs as shown in Figure 26. Repeat to add more 928s to the group.
