Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 39)

Chapter
Communicating with Remote I/O
4
4Ć2
A remote I/O system lets you control Allen-Bradley I/O that is not within a
VME master processor’s chassis. The SV1R has one remote I/O channel;
the SV2R has two remote I/O channels. Each channel transfers discrete
and block-transfer data with remote I/O devices.
These components make up a remote I/O system:
Figure 4.1
Components of a remote I/O system
Remote I/O link cable: Belden 9463
A VME system with an SV1R or SV2R scanner
(only one remote I/O channel is shown being used)
Each scanner channel maintains a scan list that
identifies all the racks connected to that channel.
Remote I/O node adapters like the 1771ĆASB modules
or PanelView operator interfaces addressed
as remote I/O racks.
PLCĆ5 channel or a processor operating as
a remote I/O adapter
Introduction to Remote I/O