1794-Ic 48V Dc 16 Input Module; 1794-Oc 48V Dc 16 Output Module; 1794-Ow8 Relay Output Module - Rockwell Automation Allen-Bradley 1794-IB16D User Manual

Appendix B Simplified Schematics of FLEX I/O Digital Modules
Typical Simplified Schematic for Input 0
and a 1794-TB3 or 1794-TB3S Terminal Base
A-0
Input
Device
C-35
+
C-34
+48V
-
COM B-16
Typical Simplified Schematic for Output 0
and a 1794-TB2, 1794-TB3, or 1794-TB3S Terminal Base
V
CC
Flexbus
Interface
Typical Simplified Schematic for Output 0
and a 1794-TB2, 1794-TB3, 1794-TB3S, or (1794-TBN, 1794-TBNF) Terminal Base
V
CC
Opto
Isolation
Flexbus
Interface
Note: Auxiliary terminal strips are required for all terminal base units except the 1794-TB3
and 1794-TB3S when load power is 24V DC and channel-to-channel isolation is not needed.
126

1794-IC 48V DC 16 Input Module

1794-OC 48V DC 16 Output Module

Opto
Isolation

1794-OW8 Relay Output Module

Interface
Circuitry
Opto
Isolation
OUT
COM
24V
*
COM
*
Fuse on 1794-TBNF only
Rockwell Automation Publication 1794-UM061B-EN-P - March 2020
Flexbus
Interface
C-34
+48V
+
48V
-
A-0
Output
Device
B-17
B-16
40117
C-34
24V
A-0 (B-0)
+
Load
Power
-
A-1 (C-1)
B-16
40146
40107