User guide

1 Publication 1747-UM013B-EN-P - January 2005
Chapter 1
Overview
This chapter contains the following information:
• system overview
• how the scanner interacts with the SLC processor
• how the scanner interacts with adapter modules
• scanner I/O image concepts
• extended node capability
• complementary I/O
• scanner features
• compatible network devices
System Overview
The Remote I/O (RIO) Scanner, Catalog Number 1747-SN, is the
remote I/O scanner for the SLC 500. It enables communication
between an SLC processor (SLC 5/02 or later) and remotely located
(3,048 meters [10,000 feet] maximum) 1746 I/O chassis and other RIO
compatible Allen-Bradley operator interface and control devices. The
1747-SN Scanner communicates with remotely located devices using
the Allen-Bradley Remote I/O link. The RIO link consists of a single
master (scanner) and multiple slaves (adapters). Communication
between devices occurs over twisted pair cable with the devices
daisy-chained together. The scanner can reside in any slot of the local
SLC chassis except for slot 0.
The Remote I/O (RIO) Scanner, Catalog Number 1747-SN, is the
remote I/O scanner for the SLC 500. It enables communication
between an SLC processor (SLC 5/02 or later) and remotely located
(3,048 meters [10,000 feet] maximum) 1746 I/O chassis and other RIO
compatible Allen-Bradley operator interface and control devices. The
1747-SN Scanner communicates with remotely located devices using
the Allen-Bradley Remote I/O link. The RIO link consists of a single
master (scanner) and multiple slaves (adapters). Communication
between devices occurs over twisted pair cable with the devices
daisy-chained together. The scanner can reside in any slot of the local
SLC chassis except for slot 0.