Inputs/outputs – Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual User Manual
Page 63
Publication 1797-6.5.3 - March 2006
How to Install Your FLEX Ex Analog Modules 3-11
Connecting Wiring to the
FLEX Ex I/O Analog
Modules
Inputs/Outputs
Each 1797-IE8H input can be operated from an analog field device signal, and
each 1797-OE8H output channel can operate an analog field device. Do not
apply any non-intrinsically safe signals to these modules.
The channels of the 1797-IE8H are electrically connected to each other and
have a common plus-line. The channels of the 1797-OE8H are electrically
connected to each other.
Connections for the 1797-IE8H Module
IMPORTANT
When using an intrinsically safe electrical apparatus according
to EN50020, the European Community directives and
regulations must be followed.
IMPORTANT
When interconnecting several lines, you must consider the total
accumulated power and check for intrinsic safety.
1
0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
28
29
30
31
32
33
22
23
24
25
26
27
16
17
18
19
20
21
46
47
48
49
50
51
40
41
42
43
44
45
34
35
36
37
38
39
40071
Ch 0
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Ch 6
Ch 7
Row C
Row A
Row B
+ sig –
+ sig –
+ sig –
+ sig –
+ sig –
+ sig –
+ sig –
+ sig –
No connection
allowed
No connection
allowed
+V
+V
–V
–V
flexbus
Bus
uC
+V
-V
+
sig
-
4 to 20mA
Xmit
4 to 20mA
Xmit
I
P
P
I
40072
22
Ω
91
Ω
17V
1797-IE8H Module