Rockwell Automation 1492-CM800-LD005 Field Wire Conversion Module for Modicon B807-132 to 1756-IA32 - Manual (Page 4)

10000021868 (Version 00)
Printed in Germany
Article No. 4351880000
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
1492-CM800-LD005 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