
Publication CIG-WD001A-EN-P - October 2003
17-16 1794 FLEX I/O Modules
Common
0 A-0 Connect common
to terminals 36,
38, 40 and 42
1A-1
2A-2
3A-3
4A-4
5A-5
6A-6
7A-7
8A-8
9A-9
10 A-10
11 A-11
12 A-12
13 A-13
14 A-14
15 A-15
For Outputs 0 through 15, use +V1 and COM1
+V1 dc power Power terminals 35, 37, 39 and 41
Com1 dc Return Common terminals 36, 38, 40 and 42
For Outputs 16 through 31, use +V2 and COM2
+V2 dc power Power terminals 43, 45, 47 and 49
Com2 dc Return Common terminals 44, 46, 48 and 50
17 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 33
0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5
16
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
NC
+V2 = Terminals 43, 45, 47 and 49
Outputs
Outputs
+V1 COM1 +V1 COM1 +V1 COM1 +V1 COM1 +V2 COM2 +V2 COM2 +V2 COM2 +V2 COM2 NC
+V1 = Terminals 35, 37, 39 and 41
COM1 = Terminals 36, 38, 40 and 42
NC = No connections (terminals 16, 33, 34 and 51)
COM2 = Terminals 44, 46, 48 and 50
NC NC
(1794-TB32 shown)
A
B
C
1794-TB32 and -TB32S
Output
Channel
Output
Terminal
Common
16 B-17 Connect common
to terminals 44,
46, 48 and 50
17 B-18
18 B-19
19 B-20
20 B-21
21 B-22
22 B-23
23 B-24
24 B-25
25 B-26
26 B-27
27 B-28
28 B-29
29 B-30
30 B-31
31 B-32
Output
Channel
Output
Terminal
1794-OB32P
17 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 33
0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5
16
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
Outputs
Commons
(1794-TB3 shown)
-V
V oltage
In +V
Voltage
Out +V
Voltage
Terminals 35 through 50 not available on 1794-TB2
A
B
C
Co mmon
-V
Common
16
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
51
33
34
+V
COM
+V
COM
B
C
Even Numbered I/O Terminals 0 thru 14
Odd Numbered I/O Terminals 1 thru 15
1794-TB2, -TB3, -TB3S
1794-TBN
1794-TB 2, -TB3, TB3S 1794-TBN
Output
Te r m ina l
Co mmo n
Te r m ina l
1
Output
Te r m ina l
Co mmo n
Te r m ina l
2
0A-0A-1/B-17B-0C-1
1A-2A-3/B-18B-2C-3
2A-4A-5/B-19B-4C-5
3A-6A-7/B-20B-6C-7
4A-8A-9/B-21B-8C-9
5 A-10 A-11/B-22 B-10 C-11
6 A-12 A-13/B-23 B-12 C-13
7 A-14 A-15/B-24 B-14 C-15
+V dc
Common
Output
Channel
C-34 through C-51 for 1794-TB3 and -TB3S
C-34 and C-51 for 1794-TB2, -TBN
B-16 through B-33 for 1794-TB2, -TB3, -TB3S
B-16 and B33 for 1794-TBN
1. For the 1794-TB2, -TB3, -TB3S terminal bases, the A-1, A-3, A-5, A-7, A-9, A-11,
A-13 and A-15 are connected internally to 24V dc common.
2. For the 1794-TBN terminal base, the C-1, C-3, C-5, C-7, C-9, C-11,
C-13 and C-15 are connected internally to 24V dc common.
Connect +V to C-34.
Connect +V common to B-16.
Use B-33 and C-51 for daisy chaining to next terminal base unit.
1794-OB8EP
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