Publication 1794-6.5.12 - September 2011
16 Install Your FLEX I/O Input Module
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.
Wiring Information
Wiring the module is done using the 1794-TB3G, 1794-TB3GK or the
1794-TB3GS terminal base units.
1794-TB3G, 1794-TB3GK and 1794-TB3GS Wiring
Connect Wiring to the FLEX I/O Module
Wiring to the TC, RTD, and mV module is made through the terminal base
unit on which the module mounts.
The module is compatible with the 1794-TB3G, 1794-TB3GK and
1794-TB3GS terminal base units.
Connecting Wiring Using a 1794-TB3G, 1794-TB3GK or 1794-TB3GS
Terminal Base Unit
1. Connect individual signal wiring to numbered terminals on 0…15 row
(A), and 17…32 row (B), on the terminal base unit as indicated in the
table below. Use Belden 8761 cable for mV signal wiring, or the
appropriate thermocouple wire for your thermocouples.
The adapter is capable of addressing eight modules. Do not exceed a
maximum of eight terminal base units in your system.
0123456789101112131415
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 or 1794-TB3GK
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 3324 25 26 27 28 29 30 31 3217
35 36 37 38 47 48 49 5034 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
40…45 = chassis ground
35 and 51 = common
34 and 50 = 24V DC
16 and 33 = chassis ground
40…45 = chassis ground
45328
