National Instruments EIGHT CHANNEL SPST RELAY MODULE 用户手册
cFP-RLY-421
4
ni.com
Table 1 lists the terminal assignments for the signals of each
channel.
channel.
All of the COM terminals are connected internally and all of the
V
V
SUP
terminals are connected internally. NI does not recommend
using them with the cFP-RLY-421.
Caution
Cascading power between two modules defeats
isolation between those modules. Cascading power from
the network module defeats all isolation between
modules in the FieldPoint bank.
the network module defeats all isolation between
modules in the FieldPoint bank.
Table 1. Terminal Assignments
Channel
Terminal Numbers
NO
IC
0
1
2
1
3
4
2
5
6
3
7
8
4
9
10
5
11
12
6
13
14
7
15
16
Table 2. V
SUP
and COM Terminal Assignments
V
SUP
COM
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32