Chapter 3
Signal Connections
©
National Instruments
3-7
Outputs
PFI <0..7> are
u
sed for DIO only. PFI <32..39> are
u
sed for co
u
nters and
motion encoders only. Yo
u
can
u
se PFI <8..31> as either of the three
choices. When
u
sed as an o
u
tp
u
t, yo
u
can individ
u
ally config
u
re each PFI
line as a DIO line or a co
u
nter line (yo
u
need not disting
u
ish between
co
u
nter/encoder or DIO applications when yo
u
u
se a PFI line as an inp
u
t).
F
u
rthermore, the PFI lines associated with gates and so
u
rces can be
u
sed as
o
u
tp
u
ts associated with the co
u
nter. When
u
sed as s
u
ch, these PFI lines
drive the selected GATE or SOURCE associated with these lines. For
example, if PFI 39 is config
u
red as an o
u
tp
u
t, it will drive the selected
SOURCE of co
u
nter 0.
Table 3-3 s
u
mmarizes what yo
u
can drive onto the different PFI lines when
they are
u
sed as o
u
tp
u
ts.
Table 3-3.
PFI Lines Used as Outputs
PFI Line
Possible Signals
PFI 0
P0.0
PFI 1
P0.1
PFI 2
P0.2
PFI 3
P0.3
PFI 4
P0.4
PFI 5
P0.5
PFI 6
P0.6
PFI 7
P0.7
PFI 8
P0.8 or CTR 7 OUT
1
PFI 9
P0.9
PFI 10
P0.10 or CTR 7 GATE
1
PFI 11
P0.11 or CTR 7 SOURCE
1
PFI 12
P0.12 or CTR 6 OUT
1
PFI 13
P0.13
PFI 14
P0.14 or CTR 6 GATE
1
Summary of Contents for PCI-6601
Page 1: ...PCI 6601...
