User manual
Publication CIG-WD001A-EN-P - October 2003
1794 FLEX I/O Modules 17-7
Signal Type 2-Wi re
Sen sors
3-Wire
Se nsors
Jum per
Positions
1
0 Sink Input A-0 A-0 A-1
dc return B-17 B-18
24V dc supply C-35 C-35
1 Sink Input A-2 A-2 A-3
dc return B-19 B-20
24V dc supply C-37 C-37
2 Sink Input A-4 A-4 A-5
dc return B-21 B-22
24V dc supply C-39 C-39
3 Sink Input A-6 A-6 A-7
dc return B-23 B-24
24V dc supply C-41 C-41
4 Sink Input A-8 A-8 A-9
dc return B-25 B-26
24V dc supply C-43 C-43
5 Sink Input A-10 A-10 A-11
dc return B-27 B-28
24V dc supply C-45 C-45
6 Sink Input A-12 A-12 A-13
dc return B-29 B-30
24V dc supply C-47 C-47
7 Sink Input A-14 A-14 A-15
dc return B-31 B-32
24V dc supply C-49 C-49
+V dc C-34 through C-51
dc Return B-16 through B-33
Note: 2-wire devices use 2 terminals; 3-wire devices use 3 terminals.
1.
Jumper connections for standard (non-Smart) sensors or unused inputs.
0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5
0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5
35 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1
34
35 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1
34
0-15
16-33
34-51
0-15
16-33
34-51
33
16
33
16
1794-TB3 - shown with jumpers for standard 3-wire sensors
1794-TB3 - shown with 3-wire Smart sensors
0 NS0 3 NS32 NS21 NS1 4 NS4 7 NS76 NS65 NS5
A
B
C
A
B
C
= Sink input or Configuration
= Common
= +V dc
0-15
16-33
34-51
A
B
C
0NS0
A
B
C
0NS0
2-Wire Device
(Sourcing Output)
3-Wire Device
(Sourcing Output)
Install jumper when standard sensor is used, or when a sensor is not installed on an input point.
Jumper
1794-TB3
Input
Channel
1794-IB8S
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1716 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
51
50
1794-TB 3, 1794-TB 3S
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0-15
16-33
34-51
A
B
C
1794-T B 3 and -T B 3S
0 A-0 C-35 8 A-8 C-43
1 A-1 C-36 9 A-9 C-44
2 A-2 C-37 10 A-10 C-45
3 A-3 C-38 11 A-11 C-46
4 A-4 C-39 12 A-12 C-47
5 A-5 C-40 13 A-13 C-48
6 A-6 C-41 14 A-14 C-49
7 A-7 C-42 15 A-15 C-50
+V dc C-34 C-51
Input
Terminal
Supply
Terminal
Common
Terminal
B-17
B-18
B-19
B-20
B-21
B-22
B-23
B-24
Input
Terminal
Supply
Terminal
Common
Terminal
B-25
B-26
B-27
B-28
B-29
B-30
B-31
B-32
11
Common
through
B-16 through B-33
Input
Channel
1. 2-wire devices use input and supply terminals; 3-wire input devices use input, common and supply terminals.
Connect +V to C-34
Connect +V common to B-16
Use B-33 and C-51 for daisy-chaining to the next terminal base unit.
Input
Channel
1794-IC16










