Rockwell Automation 1492 1771-to-1756 I/O Swing-arm Conversion System User Manual
Page 14
(14)
10000060110 (Version 00)
1771 Digital I/O Module
Cat. Numbers: 1492 Converter for 1771-to-1756 Digital I/O
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
1
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
2
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
3
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
4
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
5
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
6
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
7
1
4
9
2
-C
M
1
7
7
1
-L
D
0
1
1
1
4
9
2
-C
M
1
7
7
1
-L
D
0
1
2
1
4
9
2
-C
M
1
7
7
1
-L
D
0
1
3
1
4
9
2
-C
M
1
7
7
1
-L
D
0
1
4
1771-IAD
X
1756-IA16
1771-IBD
X
1756-IB16
1771-IAD
Y
1756-IH16I
1771-IMD
Y
1756-IM16I
1771-IBN
Z
1756-IB32
1771-IAN
Z
1756-IA32
1771-ID16
Y
1756-IA16I
Y
1756-IH16I
1771-IQ16
Y
1756-IB16I
1771-IVN
Z
1756-IV32
1771-OAD
X
1756-OA16
1771-OBD
X
1756-OB16E
Two 1771-IA/IA2
1756-IA16
1771-OBD
Two 1756-OC8
1771-OBN
Z
1756-OB32
1771-OD16
Y
1756-OA16I
1771-OW16
Y
1756-OW16I
1771-OW
Y
1756-OX8I
1771-OAN
Two 1756-OA16
1771-OA
U
1756-OA8E
Compatible
1756
Digital I/O Module
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
8
F
1
4
9
2
-C
M
1
7
7
1
-L
D
0
0
9
F
1
4
9
2
-C
M
1
7
7
1
-L
D
0
1
0
F
XE
S1
S3
Appendix B
Selection Table for 1771-to-1756 Digital I/O Swing-Arm Converter Modules and Pre-Wired Cables
How To Use Matrix A) In the left most column, find the catalog number of the 1771 digital I/O module
B) Follow that row to the right most column to find the compatible 1756 I/O module. In some cases more than one module exists.
Review the matrix carefully and review the I/O module Installation Manuals with attention to the specifications to determine full
compatibility.
C) Find the column in the row you selected that contains a capital letter (e.g. X) and/or letters/numbers (XE & S1). The catalog
number of the 1492 1771-to-1756 Converter is listed at the top of that column. The capital letters/letter or number/letter from the
row and column intersection indicates the last character(s) of the catalog number for the 1492 cable that connects from the
converter module to the 1756 I/O module (right most column). The FULL cable catalog number is 1492-CONCAB
xx, where xx is
the above letter/number or letter/number combination, except for XE selection (1492-C
XE
Footnotes:
Three digit number to indicates cable length in meters and tenths of meters (005=0.5 meters).
Available lengths = 1.0 (010) and 0.5 (005) meters
Three digit number to indicates cable length in meters and tenths of meters (005=0.5 meters). Available lengths = 1.0 (010) and
0.5 (005) meters
One conversion module required for each 1771-IA/IA2 module. The 1492-C(1)(2)XE cable provides the two 1771 (8-pt) module
into one 1756 (16-pt) module conversion.
The two 1756-OC8 (S1) or 1756-OA16 (S3) must be located directly next to each other in the 1756 chassis.
An F at the end of the conversion module catalog number indicates it is fused to match the functionality of the 1771 module
being replaced.
To understand any issues concerning I/O module compatibility refer to the conversion module wiring diagrams and the specific
I/O module's Installation Manual especially the specification and wiring instruction sections.
Figure 8a
Figure 8b
Figure 9a
Figure 9b
Figure 9c
Figure 6e
Figure 7b
Figure 7c
Figure 8c
Figure 7a
Base-plate slot
Cover-plate
hinge
Figure 9d
Figure 9e