Chapter 5
Signal Connections
7344/7334 Hardware User Manual
5-2
ni.com
Figure 5-1 shows the pin assignments for the 68-pin motion I/O connector
on the 7344/7334 controller. A signal description follows the connector
pinout. In this chapter, lines above signal names indicate that the signal
is active-low.
Figure 5-1.
68-Pin Motion I/O Connector Pin Assignment
Analog Reference (Output)
Analog Input 3
Analog Input 1
Analog Output Ground*
Analog Output 3*
Analog Output 1*
Digital Ground
Breakpoint 3
Breakpoint 1
Digital Ground
Axis 4 Inhibit
Trigger 4
Axis 4 Home Switch
Digital Ground
Digital Ground
Axis 4 Dir (CCW)
Axis 3 Inhibit
Trigger 3
Axis 3 Home Switch
Digital Ground
Digital Ground
Axis 3 Dir (CCW)
Axis 2 Inhibit
Trigger 2
Axis 2 Home Switch
Digital Ground
Digital Ground
Axis 2 Dir (CCW)
Axis 1 Inhibit
Trigger 1
Axis 1 Home Switch
Digital Ground
Digital Ground
Axis 1 Dir (CCW)
Analog Input Ground
Analog Input 2
Reserved
Analog Output 2*
Shutdown
Breakpoint 4
Breakpoint 2
Analog Input 4
Analog Output 4*
Host +5 V
Axis 4 Reverse Limit Switch
Axis 4 Forward Limit Switch
Axis 4 Encoder Index
Axis 4 Encoder Phase B
Axis 4 Encoder Phase A
Axis 4 Step (CW)
Axis 3 Reverse Limit Switch
Axis 3 Forward Limit Switch
Axis 3 Encoder Index
Axis 3 Encoder Phase B
Axis 3 Encoder Phase A
Axis 3 Step (CW)
Axis 2 Reverse Limit Switch
Axis 2 Forward Limit Switch
Axis 2 Encoder Index
Axis 2 Encoder Phase B
Axis 2 Encoder Phase A
Axis 2 Step (CW)
Axis 1 Reverse Limit Switch
Axis 1 Forward Limit Switch
Axis 1 Encoder Index
Axis 1 Encoder Phase B
Axis 1 Encoder Phase A
Axis 1 Step (CW)
1
35
2
36
3
37
4
38
5
39
6
40
7
41
8
42
9
43
10 44
11 45
12 46
13 47
14 48
15 49
16 50
17 51
18 52
19 53
20 54
21 55
22 56
23 57
24 58
25 59
26 60
27 61
28 62
29 63
30 64
31 65
32 66
33 67
34 68
* Available only on the 7344 motion controllers
