Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 197)

Publication 1747-UM010B-EN-P - September 2003
Glossary 7
Scanner Image
The data table area within the scanner, used to exchange I/O
information between the scanner and all the adapters on the RIO link.
The scanner image is a portion of the SLC processor image.
SLC Chassis
A physical SLC rack that houses SLC processors and 1746 and 1747
I/O modules.
SLC Processor
The processor that controls the SLC chassis in which the scanner is
installed.
Slot
The physical location in any SLC chassis used to insert I/O modules.
Specialty I/O Module
An I/O module other than a discrete I/O module (e.g., an analog
module).
System Status Word (SSW)
This word is M1:s.3400 (where s=slot number of 1747-BSN and is used
to monitor the status of the entire backup system.