Rockwell Automation 9323-PA1E QUICK START GUIDE APS 6.0 - Manual (Page 31)

Creating a Processor File
3–3
Slot Numbers
Note that slot numbers are indicated in the figure above. In fixed controllers, slot 0
applies to the processor and fixed I/O points; slots 1 and 2 apply to I/O modules
located in the expansion chassis. In modular controllers, slot 0 is always reserved
for your processor module; the remaining slots apply to the various I/O modules you
have inserted.
Catalog Numbers
When you configure your controller, you must specify the processor catalog
number, chassis catalog numbers, and I/O module catalog numbers as required. The
location of the catalog number on the various components is shown in the following
figures.
Make a Record of Controller Components
We recommend that you make a list of the processor, chassis, and I/O catalog
numbers, and also the chassis numbers assigned to the chassis and the slot locations
of all I/O modules. You can then refer to this list as you configure your controller.
Catalog Number Location Ć SLC 500 Fixed Controllers
Side View
CAT
SLC 500
1747-L _ _ _
Label for Processor Catalog
and Serial Number
Processor
Catalog Number
The catalog number for the expansion
chassis is 1746ĆA2. It appears on the
side of the chassis.