Rockwell Automation 1747-ASB Remote I/O Adapter - Manual (Page 38)

Publication 1747-UM006B-EN-P - June 2003
3-2 Addressing
Slot Numbering The 1747-ASB module is capable of controlling 30 slots. When
expansion chassis are used, the 1747-ASB module treats all of the I/O
modules as if they are installed in a single chassis.
The remote chassis and remote expansion chassis slots are numbered
from 0 to 30. The 1747-ASB module must reside in slot 0. Slots
numbered 31 and above cannot be used.
Addressing I/O Modules SLC and PLC processors address the I/O modules residing in the
1747-ASB module chassis by logical rack and logical group. Before
using the 1747-ASB module, you should first understand slot
addressing and how each module's image is mapped into the
1747-ASB module's image.
IMPORTANT
A 1747-ASB module fault occurs if the remote
expansion chassis are not powered.
Catalog Number 1746-C9
Catalog Number 1746-C7
Remote Chassis
Remote Chassis Remote Expansion Chassis
Catalog Number 1746-P1
Catalog Number 1746-P3
Catalog Number 1746-P2
Catalog Number 1746-P2
36 inch cable
6 inch
cable
Remote Expansion Chassis
IMPORTANT
Installing modules in slots 31 and above causes a
1747-ASB module error.