V. wiring diagrams (cont’d) – Rockwell Automation 1492-CM1771-LA004 Analog & Digital I/O Conversion Module User Manual
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V. Wiring Diagrams (Cont’d)
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
WARNING
Conversion Module
1492-CM1771-LA004
Cable
1492-CONACAB005T1
1756-IF6I
1756-IF6I
Conversion: 1771-IL (1) to 1756-IF6I (2) (Current)
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to two 1756-IF6I RTB. Recommended cable lengths of 0.5M or
1.0M (005=0.5M, 010=1.0M). See table 2 for other lengths.
SHIELD GROUNDING: In some installations, the field wiring shield was grounded on the 1771 chassis. If this was
the case, the installer must remove these shield connections from the 1771 chassis and they can be connected to the grounding stud on the
1492-CM1771-LA004 module. The pre-wired cable used between the 1492-CM1771-LA004 module and the 1756-IF6I [1492-CONACAB005T1]
provides a shield ground lug to ground the shield at the 1756 ControlLogix chassis, this must be connected. Do NOT connect this ground lug to the
conversion module grounding stud.
The 1771-IL input configuration was software configured, as is the 1756-IF6I. Please ensure the correct configuration in the 1756-IF6I.
Refer to your 1771-IL and 1756-IF6I Installation and User Manuals for additional information concerning comparisons of module wiring, features
and configuration details.
This configuration uses two (2) 1756-IF6I output modules to replace a single 1771-IL output module. This may require the use of a larger 1756
I/O chassis and conversion mounting assembly. Ensure there is sufficient panel space to allow for this possibility.
[Reference Doc: 41171-032 (Version 00)]
PN-114290
DIR 10000060101 (Version 01)
Publication 1492-IN048B-EN-E
Transmitter
Power Supply
4-Wire Transmitter
2-Wire
Transmitter
1771-WF Swing Arm
From 1771-IL
18
17
16
15
14
13
12
11
10
9
8
7
SH
4
3
2
6
1
5
Orange/Red
White/Red
Green/White
Blue/White
Orange/Black
Red/White
Black/Red
Blue/Black
Black/White
Green/Black
Blue
Orange
Red/Black
White/Black
18
14
13
12
11
8
6
5
17
16
15
4
3
2
1
10
9
7
Channel6
Channel7
Channel7
Black
White
Red
Green
Channel5
Channel5
Channel6
Channel4
Channel4
Channel3
Channel3
Channel0
Channel2
Channel2
Channel1
Channel1
Channel0
5
3
6
4
11
9
12
10
19
17
16
15
20
18
1
2
7
8
RET-0
IN-0/I
IN-1/V
IN-4/I
RET-4
IN-5/I
RET-5
+
-
+
-
RET-1
IN-1/I
IN-0/V
RET-3
IN-3/I
IN-2/V
IN-3/V
RET-2
IN-2/I
IN-4/V
IN-5/V
+
-
5
3
6
4
11
9
12
10
19
17
16
15
20
18
1
2
7
8
RET-0
IN-0/I
IN-1/V
IN-4/I
RET-4
IN-5/I
RET-5
RET-1
IN-1/I
IN-0/V
RET-3
IN-3/I
IN-2/V
IN-3/V
RET-2
IN-2/I
IN-4/V
IN-5/V