Rockwell Automation 1492-CM800-LA004 Field Wire Conv. Module for Modicon B872-200 to 1756-OF6VI - Manual (Page 4)

10000021843 (Version 00)
Printed in Germany
Article No. 4351830000
VI. Appendix A - 800 Housing to 1756 Chassis Conversion System Selection Process
1) Determine the number of 800 I/O modules actually used in the 800 I/O Housing to be converted to 1756.
2) Review the data in Column 5 from the below table, and select a 1756 I/O Chassis which meets your conversion
needs from Step 1. Ensure the information from the I/O Conversion module table is reviewed first since in some
cases, two 1756 modules are needed to replace one 800 I/O module.
3) Once the 1756 Chassis is selected, refer to Column 7 and select the Conversion Assembly.
 One chassis slot required for the ControlLogix processor or a remote I/O adapter type module.
 The footprint and mounting dimensions of the 1492 Conversion Assembly (base plate and cover plate) match those of the
Modicon I/O Housing.
 Width dimension includes the 1756 Chassis power supply.
 Surplus Chassis width as compared to the 800 I/O Housing is divided equally when mounting it on the Conversion Assembly.
 Mounting holes for the 1756 I/O Chassis are pre-drilled and pre-tapped into the Conversion Assembly cover plate.
Modicon is a Registered Trademark of Group Schneider.
AS-H810-xxx
AS-H819-103
AS-H819-209
AS-H819-100
AS-H827-103
AS-H827-209
AS-B827-100
Modicon 800 I/O
Housing Cat Number
1492-MUA4-MB3
1492-MUA7-A10-
MB4679 
1492-MUA10-A13-
MB81011 
Conversion Assembly
Catalog Number 
3
4
6
7
8
10
11
10.25”
17.5”
17.5”
17.5”
27.1”
27.1”
27.1”
10.25”
A7 = 14.49”
A10 = 19.02”
A7 = 14.49”
A10 = 19.02”
A7 = 14.49”
A10 = 19.02”
A10 = 19.02”
A13 = 23.15”
A10 = 19.02”
A13 = 23.15”
A10 = 19.02”
A13 = 23.15”
1756 Chassis
Width 
Dimension
3
A7 = 6, A10=9
A7 = 6, A10=9
A7 = 6, A10=9
A10 = 9, A13=12
A10 = 9, A13=12
A10 = 9, A13=12
1756 I/O Chassis
Catalog Number
1 7 2 3 6 5 4
1756-A4
1756-A7
or
1756-A10
1756-A10
or
1756-A13




Max. Number
of 800 Housing
Slots for I/O
800 Housing
Width
Dimension
Max. Number
of 1756 Chassis
Slots for I/O
6
14
12
26
24
34
32
20
21
22
23
27
28
+
-
4
Analog Output 1
Analog Common 1
5
13
25
3
9
10
15
16
18
19
7
33
8
11
17
29
30
31
35
36
37
38
1
2
39
Not Used
Not Used
Frame Ground
Frame Ground
Analog Common 1
13
25
24
23
22
21
19
18
17
16
15
14
SH
12
11
9
6
4
2
20
1
OUT-0
RTN-0
5
OUT-1
2
RTN-1
6
OUT-2
7
RTN-2
11
OUT-3
8
RTN-3
12
RTN-4
19
OUT-4
15
Not Used
14
Not Used
10
Red
Black
White
Black
Green
Black
Blue
Black
RTN-5
20
OUT-5
16
Yellow
Black
Brown
Black
Orange
Black
Analog Output 2
Analog Common 2
Analog Common 2
Analog Output 3
Analog Common 3
Analog Common 3
Analog Output 4
Analog Common 4
Analog Common 4
40
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Frame Ground
Frame Ground
1492-CM800-LA004 Conversion Module
De-energize and lockout any and all power to all I/O field devices connected to the Modicon 800 I/O
housing, and the power to the 800 I/O housing itself. Ensure all power is de-energized and locked out
to any device in the control cabinet where the conversion is to be performed. Ensure work is performed
by qualified personnel. WARNING