Rockwell Automation 1492 Modicon 800-to-1756 I/O Swing-arm Conversion System User Manual
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(Version 00)
Appendix A
800 I/O Housing to 1756 I/O 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-A7 and 1756-A10 Chassis are pre-drilled and tapped in the Conversion Assembly.
Mounting holes for the 1756-A10 and 1756-A13 Chassis are pre-drilled and tapped in the Conversion Assembly.
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
Catalog Number
1492-MUA4-MB3
1492-MUA7-A10-
MB4679
1492-MUA10-A13-
MB81011
Conversion Assembly
Catalog Number
Max. Number
of Slots for I/O
3
4
6
7
8
10
11
10.25”
17.5”
17.5”
17.5”
27.1”
27.1”
27.1”
Width
Dimension
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 I/O Chassis
Width
Dimension
Max. Number
of Slots for I/O
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