Rockwell Automation 1794-IRT8XT FLEX I/O Thermocouple/RTD /Millivolt Input Module User Manual - Manual (Page 28)

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.
IMPORTANT
The adapter is capable of addressing eight modules. Do not exceed a
maximum of eight terminal base units in your system.
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 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 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
40…45 = chassis ground 35 and 51 = common
34 and 50 = 24V DC
16 and 33 = chassis ground
40…45 = chassis ground
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