Connections For The 1794-Oe8H Hart Analog Output Module On A 1794-Tb3G Or 1794-Tb3Gs Terminal Base Unit - Allen-Bradley 1794-IE8H User Manual

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