Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 64)

Publication 1797-6.5.3 - March 2006
3-12 How to Install Your FLEX Ex Analog Modules
For Two-Wire Transmitter Devices
1. Connect the individual input wiring to (+) terminals (0, 4, 8, 12) on the 0
to 15 row (A) and on the 16 to 33 row (B) (terminals 17, 21, 25, 29) as
indicated in the table below.
2. Connect the associated input to the corresponding (sig) terminal (1, 5, 9,
13) on the 0 to 15 row (A), and on the 16 to 33 row (B) (terminals 18,
22, 26, 30) for each input as indicated in the table below.
3. Connect +V dc power to terminal 34 on the 34 to 51 row (C).
4. Connect -V to terminal 35 on the 34 to 51 row (C).
5. If continuing power to the next terminal base unit, connect a jumper
from terminal 50 (+V) on this base unit to terminal 34 on the next base
unit.
6. If continuing common to the next terminal base unit, connect a jumper
from terminal 51 (-V) on this base unit to terminal 35 on the next base
unit.
Table 3.2 Wiring Connections for the 1797-IE8H Module
Input Input
Source Input
Signal Input
Return Input Input
Source Input
Signal Input
Return
Input 0 A-0 A-1 A-2 Input 4 B-17 B-18 B-19
Input 1 A-4 A-5 A-6 Input 5 B-21 B-22 B-23
Input 2 A-8 A-9 A-10 Input 6 B-25 B-26 B-27
Input 3 A-12 A-13 A-14 Input 7 B-29 B-30 B-31
+V Terminals 34 and 50
-V Terminals 35 and 51
Terminals 16, 33, 40, 41, 42, 43, 44 and 45 are connected to chassis ground.
ATTENTION
Do not use the unused terminals on the terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of your
system.