FLEX I/O Digital Input Modules
11
Publication 1794-IN093E-EN-P - August 2018
1794-TB3 and 1794-TB3S Terminal Base Wiring for 1794-IB8 and 1794-IB16
2-Wire and 3-Wire Input Wiring for 1794-IB8 and 1795-IB16
-V
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
Commons
(1794-TB3 shown)
Connect V common to terminal B-16.
CV to terminal C-34.
Voltage
In +V
Voltage
Out +V
Voltage
A
B
C
Common
-V
Common
Use B-33 and C-51 to daisy-chain to the next terminal base unit.
= Sink input
= Common
= +V DC
0…15
16…33
34…51
A
B
C
A
B
C
2-Wire Device
(Sourcing Output)
3-Wire Device
(Sourcing Output)
