Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 196)

Publication 1747-UM010B-EN-P - September 2003
6 Glossary
Output file
The scanner’s output file that is updated during the SLC processor
output scan.
Remote Chassis
The chassis containing an ASB module and connected to the local SLC
chassis via the RIO link.
Remote Expansion Chassis
A chassis that is connected to a remote chassis using a 1747-C9
(91.4 cm [36 in.]) or 1747–C7 (15.2 cm [6 in.]) cable.
Reset, Adapter Decide
Commands sent by the scanner to a logical device during an RIO
discrete transfer. These commands instruct the logical device to reset
all of its discrete outputs if hold last state is not selected, or to hold all
of its discrete outputs in their last state if hold last state is selected.
Reset, Adapter Reset
Commands sent by the scanner to a logical device during an RIO
discrete transfer. These commands instruct the logical device to reset
all of its discrete outputs, regardless of the hold last state selection.
RIO Block Transfer
The exchange of up to 64 words of data between the scanner and a
remote device. RIO block transfers only occur if you program them in
your processor control program.
RIO Discrete Transfer
The exchange of image data between the scanner and adapter. RIO
discrete transfers occur continuously whenever the scanner and
adapter are communicating on the RIO link.
RIO Link
An Allen-Bradley communication system supporting high-speed serial
transfer of Remote I/O (RIO) control information. This link consists of
one master and one or more slaves.
RIO Link Device
Refers to any Allen-Bradley or licensed third party product that
connects to the RIO link as an adapter or slave device.