10 FLEX I/O Digital DC Output Modules
Publication 1794-IN094D-EN-P - July 2018
1794-TB2, 1794-TB3, and 1794-TB3S Terminal Base Wiring for 1794-OB8,
1794-OB8EP, 1794-OB16, and 1794-OB16P
Wiring Connections for 1794-OB8EP
1794-TB2, 1794-TB3, 1794-TB3S 1794-TBN
Output Output Terminal Common
Terminal
(1)
Output Terminal Common
Terminal
(2)
Output 0 A-0 A-1/B-17 B-0 C-1
Output 1 A-2 A-3/B-18 B-2 C-3
Output 2 A-4 A-5/B-19 B-4 C-5
Output 3 A-6 A-7/B-20 B-6 C-7
Output 4 A-8 A-9/B-21 B-8 C-9
Output 5 A-10 A-11/B-22 B-10 C-11
Output 6 A-12 A-13/B-23 B-12 C-13
Output 7 A-14 A-15/B-24 B-14 C-15
+V DC C-34…C-51 (C-34 and C-51 for 1794-TB2, 1794-TBN)
Common B-16…B-33 (B-16 and B-33 for 1794-TBN)
(1)
1794-TB2, 1794-TB3,1794 -TB3S – A-1, A-3, A-5, A-7, A-9, A-11, A-13, and A-15 are connected together inside the
module to 24V DC common.
(2)
1794-TBN – C-1, C-3, C-5, C-7, C-9, C-11, C-13, and C-15 are connected together inside the module to 24V DC common.
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
34
Outputs
Commons
(1794-TB3 shown)
Connect -V (Supply Common) to terminal B-16
Connect +V (Supply +Voltage) to terminal C-34
-V
Voltage
In +V
Voltage
Out +V
Voltage
Terminals 35 thru 50 not available on 1794-TB2
A
B
C
Common
-V
Common
(Use B-33 and C-51 for daisy-chaining to next terminal base unit.)
Total current draw through the terminal base is limited to 10A. Separate power
connections to each terminal base may be necessary.
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