FLEX I/O 48V DC Digital Input and Output Modules
11
Publication 1794-IN105C-EN-P - July 2018
1794-TB2, 1794-TB3, and 1794-TB3S Terminal Base Wiring for
1794-IC16 and 1794-OC16
2 and 3-Wire Input Wiring for 1794-IC16
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
Inputs/Outputs
Commons
1794-TB3 shown
V COM
+V
Voltage
A
B
C
V COM
CV DC power to terminal C-34
Connect V DC common to terminal B-16
Use B-33 and C-51 for daisychaining to the next terminal base unit
+V
Note:
Terminals C-35…C-50 are not present on the 1794-TB2
A
B
C
0-15
16-33
34-51
= Sink Input
= Common
= +V DC
2-Wire Device
(Sourcing Output)
3-Wire Device
(Sourcing Output)
A
B
C