© National Instruments
|
4-13
NI 7340 User Manual and Specifications
Digital I/O Connector
All the general-purpose digital I/O lines on the NI 7340 motion controller are available on a
separate 68-pin digital I/O connector. Figure 4-9 shows the pin assignments for this connector.
Figure 4-9.
68-Pin Digital I/O Connector Pin Assignments
The 32-bit digital I/O port is configured in hardware as four 8-bit digital I/O ports. The bits in a
port are typically controlled and read with byte-wide bitmapped commands.
All digital I/O lines have programmable direction and polarity. Each output circuit can sink and
source 24 mA.
Port 4:
b
it 7
Digit
a
l Gro
u
nd
Port 4:
b
it 4
Port 4:
b
it
3
Digit
a
l Gro
u
nd
Port 4:
b
it 0
Port
3
:
b
it 7
Digit
a
l Gro
u
nd
Port
3
:
b
it 4
Port
3
:
b
it
3
Digit
a
l Gro
u
nd
Port
3
:
b
it 0
Port 2:
b
it 7
Port 2:
b
it 6
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Port 2:
b
it 1
Port 2:
b
it 0
Port 1:
b
it 7
Digit
a
l Gro
u
nd
Port 1:
b
it 4
Port 1:
b
it
3
Digit
a
l Gro
u
nd
Port 1:
b
it 0
PWM2
Re
s
erved
Re
s
erved
Re
s
erved
PWM1
Re
s
erved
Re
s
erved
PCLK
+5 V
Digit
a
l Gro
u
nd
Port 4:
b
it 5
Digit
a
l Gro
u
nd
Port 4:
b
it 1
Digit
a
l Gro
u
nd
Port
3
:
b
it 6
Port
3
:
b
it 5
Port 4:
b
it 6
Port 4:
b
it 2
Digit
a
l Gro
u
nd
Port
3
:
b
it 2
Port
3
:
b
it 1
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Port 2:
b
it 5
Port 2:
b
it 4
Port 2:
b
it
3
Port 2:
b
it 2
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Port 1:
b
it 6
Port 1:
b
it 5
Digit
a
l Gro
u
nd
Port 1:
b
it 2
Port 1:
b
it 1
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Re
s
erved
Digit
a
l Gro
u
nd
DP
u
ll
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
Digit
a
l Gro
u
nd
1
3
5
2
3
6
3
3
7
4
38
5
3
9
6
40
7
41
8
42
9
4
3
10 44
11 45
12 46
1
3
47
14 4
8
15 49
16 50
17 51
1
8
52
19 5
3
20 54
21 55
22 56
2
3
57
24 5
8
25 59
26 60
27 61
2
8
62
29 6
3
3
0 64
3
1 65
3
2 66
33
67
3
4 6
8
Содержание PXI-7340
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