Inputs/outputs – Rockwell Automation 1797-OE8 FLEX Ex Analog Modules User Manual User Manual
Page 45
Publication 1797-6.5.1 - May 2005
How to Install Your FLEX Ex Analog Modules 3-11
Connecting Wiring to the
FLEX Ex I/O Analog
Modules
Inputs/Outputs
Each 1797-IE8 or -IE8NF input can be operated from an analog field device
signal, and each 1797-OE8 output channel can operate an analog field device.
Do not apply any non-intrinsically safe signals to these modules.
The channels of the 1797-IE8 and -IE8NF are electrically connected to each
other and have a common plus-line. The channels of the 1797-OE8 are
electrically connected to each other.
Connections for the 1797-IE8 and -IE8NF Modules
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
-
4-20mA
Xmit
4-20mA
Xmit
I
P
P
I
40072
22
Ω
91
Ω
17V
1797-IE8 or -IE8NF Module