Low-Cost Industrial Digital I/O – 30 V, Bank Isolated
Connect Sensors Directly with Isolation
Isolation is a form of built-in signal conditioning that provides several
advantages, such as an extended voltage range and direct connection
to industrial sensors and actuators. Isolation also improves signal quality
and protects computer circuitry. It physically and electrically separates
two parts of a circuit, which breaks ground loops, improves common-mode
voltage and noise rejection, and permits the two parts of the circuit to be
at different voltage levels. Many industrial applications require isolation
to protect the electronics from transient voltage spikes and provide greater
common-mode noise rejection in electrically noisy environments containing
machinery and inductive loads. In bank-to-bank isolated devices, such as an
NI 651x, each bank (or group) of several channels shares the same ground
but is isolated from other banks.
Oscillator
Voltage
Voltage
100-Pin SCSI I/O Connector
CPLD
Glitch-Free Startup with Programmable
Power-Up States
With programmable power-up states, you can configure the initial output
states of the digital I/O device in software to ensure glitch-free operations
when connected to industrial actuators such as pumps, valves, motors,
and relays. The digital I/O device holds these I/O states after receiving
power, so your computer can boot and your software application can
begin running. Programmable power-up states are glitch-free, meaning
the outputs never go through an incorrect state during power up.
You can configure each digital line as high-output or low-output. The
digital I/O device stores the settings in onboard nonvolatile memory and
implements the power-up states automatically after power is applied to
the device.
Detect and Recover with Digital I/O Watchdogs
NI digital I/O watchdogs provide protection against a wide variety
of fault conditions:
• Computer crash – total OS crash
• Application crash – software application ceases to respond
• Driver crash – device driver ceases to respond
• PCI bus failure – communications cease to respond
Darlington Arrays
Photocouplers
FPGA
Photocouplers
MiniMITE 1
Flash
Figure 1. NI 651x Hardware Block Diagram
Bus Switch
PCI/PXI Bus
P0.0
P0.2
P0.4
P0.6
COM
P1.1
P1.3
P1.5
P1.7
P2.0
P2.2
P2.4
P2.6
COM
P3.1
P3.3
P3.5
P3.7
COM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
P0.1
P0.3
P0.5
P0.7
P1.0
P1.2
P1.4
P1.6
COM
P2.1
P2.3
P2.5
P2.7
P3.0
P3.2
P3.4
P3.6
COM
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.COM
P0.COM
P0.COM
P0.COM
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P2.COM
P2.COM
P2.COM
P2.COM
NC
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P4.COM
P4.COM
P4.COM
P4.COM
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P6.COM
P6.COM
P6.COM
P6.COM
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P1.COM
P1.COM
P1.COM
P1.COM
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.COM
P3.COM
P3.COM
P3.COM
NC
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
P5.COM
P5.COM
P5.COM
P5.COM
P7.0
P7.1
P7.2
P7.3
P7.4
P7.5
P7.6
P7.7
P7.COM
P7.COM
P7.COM
P7.COM
NC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.COM (P0.GND)
P0.VCC
P0.VCC
P0.VCC
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P2.COM (P2.GND)
P2.VCC
P2.VCC
P2.VCC
NC
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P4.COM (P4.GND)
P4.VCC
P4.VCC
P4.VCC
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P6.COM (P6.GND)
P6.VCC
P6.VCC
P6.VCC
P6.+5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P1.COM (P1.GND)
P1.VCC
P1.VCC
P1.VCC
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.COM (P3.GND)
P3.VCC
P3.VCC
P3.VCC
NC
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
P5.COM (P5.GND)
P5.VCC
P5.VCC
P5.VCC
P7.0
P7.1
P7.2
P7.3
P7.4
P7.5
P7.6
P7.7
P7.COM (P7.GND)
P7.VCC
P7.VCC
P7.VCC
P7.+5V
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.COM (P0.VCC)
P0.GND
P0.GND
P0.GND
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P2.COM (P2.VCC)
P2.GND
P2.GND
P2.GND
NC
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P4.COM (P4.VCC)
P4.GND
P4.GND
P4.GND
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P6.COM (P6.VCC)
P6.GND
P6.GND
P6.GND
P6.+5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P1.COM (P1.VCC)
P1.GND
P1.GND
P1.GND
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.COM (P3.VCC)
P3.GND
P3.GND
P3.GND
NC
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
P5.COM (P5.VCC)
P5.GND
P5.GND
P5.GND
P7.0
P7.1
P7.2
P7.3
P7.4
P7.5
P7.6
P7.7
P7.COM (P7.VCC)
P7.GND
P7.GND
P7.GND
P7.+5V
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.COM
P0.COM
P0.COM
P0.COM
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P2.COM
P2.COM
P2.COM
P2.COM
NC
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P4.COM (P4.GND)
P4.VCC
P4.VCC
P4.VCC
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P6.COM (P6.GND)
P6.VCC
P6.VCC
P6.VCC
P6.+5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P1.COM
P1.COM
P1.COM
P1.COM
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.COM
P3.COM
P3.COM
P3.COM
NC
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
P5.COM (P5.GND)
P5.VCC
P5.VCC
P5.VCC
P7.0
P7.1
P7.2
P7.3
P7.4
P7.5
P7.6
P7.7
P7.COM (P7.GND)
P7.VCC
P7.VCC
P7.VCC
P7.+5V
NI 6510
NI 6511
NI 6512
NI 6513
NI 6514
Figure 2. NI 6510, NI 6511, NI 6512, NI 6513, and NI 6514 Connectors
BUY ONLINE
at
ni.com
or
CALL 800 813 3693 (U.S.)
2
NI [ NATIONAL INSTRUMENTS CORPORATION ]
