Rockwell Automation 1794-OE8H FLEX I/O HART Analog Modules User Manual - Manual (Page 57)

Publication 1794-UM063A-EN-P - March 2006
Install Your FLEX I/O Analog Modules 3-11
Connections for the 1794-OE8H HART Analog Output Module on a
1794-TB3G or 1794-TB3GS Terminal Base Unit
1. Connect the individual output 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 output to the corresponding (-) terminal (1, 5, 9,
13) on the 0 to 15 row (A), and on the 16-33 row (B) (terminals 18, 22,
26, 30) for each input as indicated in the following table.
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).
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 34
Chassis
Ground
(1794-TB3G shown)
Chassis
Ground
+V -V (COM)
24C dc
Supply In
+V -V (COM)
24C dc
Supply Out
Chassis Grounds for Shields
+V = +24V dc = Terminals C-34 and C-50
-V = COM = C-35 and C-51
Chassis Ground = Terminals B-16, B-33, C-38, C-40…45, and C-47
A
B
C
For daisy-chaining: Supply in - C-34 (+) and C-35 (-)
Supply out - C-50 (+) and C-51 (-)
NC = No connection
NC NC
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
Ch0 Ch1 Ch3
Ch5
Ch2
Ch4 Ch6 Ch7
Flexbus
Bus
uC
+V
-V
+
-
Power
Supply
4 to 20 mA
Actuator
4 to 20 mA
Valve
41441
41440
1794-OE8H Module
HART
Modem
I
21.6V
250 Ω
45 Ω
F