Figure 2-11. Hardware Scanning Flowchart - NI SCXI-1127 User Manual

© National Instruments Corporation
Reset
The channel scan list is
downloaded to SCXI-1127.
The first channel
in the scan list is selected.
The SCXI-1127 is now armed
to respond to triggers on EXT_TRIG_IN.
Stay at the selected channel in the scan list.
EXT_TRIG_IN
pulsed?
Yes
Is the
SCXI-1127
armed?
Yes
Is the
SCXI-1127 at
the end of the
scan list?
No
Switch to the next channel
in the scan list.
Handshake
scanning?
No
(Synchronous Scanning)

Figure 2-11. Hardware Scanning Flowchart

2-13
Chapter 2
No
No
Yes Return to the top of the scan list
and select the first channel in the list.
Yes
Pulse SCANADVD line.
Using the SCXI-1127
SCXI-1127 User Manual