Rockwell Automation 1794-XXXX FLEX I/O High-Density Analog Modules - Manual (Page 23)

Publication 1794-UM062A-EN-P - September 2012
Install Your FLEX I/O Module 15
6. Remove cap plug and attach another terminal base unit to the right of this
terminal base unit if required.
Make sure the last terminal base has the cap plug in place.
Wire the Terminal
Base Unit Wiring to the analog modules is made through the terminal base unit on which
the module mounts.
1794-TB2 and 1794-TB3 Wiring
1794-TB3G and 1794-TB3GS Wiring
IMPORTANT The adapter is capable of addressing eight modules. Do not exceed a
maximum of eight terminal base units in your system.
1794-TB2 1794-TB3
A
B
C
0...15
34, 51
16...33
A
B
C
34 and 50 = 24V DC
35 and 51 = common
16, 33 = chassis ground
45328
34 and 50 = 24V DC
35 and 51 = common
16, 33, 38 = chassis ground
40…45, 47 = chassis ground
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
A
B
C
A
B
C
1794-TB3G
1794-TB3GS
0...15
34...51
16...33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
18 19 20 21 22 23 33 24 25 26 27 28 29 30 31 32 17
35 36 37 38 47 48 49 50 34 51
16
39 40 41 42 43 44 45 46
Label placed at top of wiring area
34 and 50 = 24V DC
35 and 51 = common
16 and 33 = chassis ground
40…45 = chassis ground 35 and 51 = common
34 and 50 = 24V DC
16 and 33 = chassis ground
40…45 = chassis ground
45328
ATTENTION: Total current draw through the terminal base unit is
limited to 10A. Separate power connections to the terminal base unit
may be necessary.