Chapter 49, 1797-irt8 flex ex thermocouple/rtd input module, Inputs – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual
Page 223: Wiring to a 1797-tb3 or -tb3s terminal base unit, Chapter, Connect wiring to the terminal base as shown below
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Publication 1797-6.5.6 - June 2005
Chapter
49
1797-IRT8 FLEX Ex Thermocouple/RTD
Input Module
Inputs
Each input can be operated from a thermocouple (TC) or resistance
temperature detector (RTD). Do not apply any non-intrinsically safe
signals to this module.
The channels in this module are electrically connected to each other and have a
common plus-line.
Wiring to a 1797-TB3 or
-TB3S Terminal Base Unit
Connect wiring to the terminal base as shown below.
IMPORTANT
When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.
Row A
Row B
Row C
Ch 7
Ch 6
Ch 5
Ch 4
+V
CJC
-V
41505
Ch 7
+
L
Ch 2
Ch 1
Ch 0
Ch 3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
H
-
+
L
H
-
+
L
H
-
+
L
H
-
+
L
H
-
+
L
H
-
+
L
H
-
+
L
H
-
-V
CJC
chassis
GND for
shield
chassis
GND for
shield
0+
0-
1-
1+
No connection allowed to terminals 36 and 49
+V
ATTENTION
Do not use any unused terminals on this terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.