Rockwell Automation 6008-SI IBM PC I/O SCNNR 6008-SI User Manual

Page 10

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Chapter 2

I/O Scanner Concepts

2-2

I/O modules sit in one or more chassis. An I/O chassis is a housing that
holds one adapter and 1, 2, 4, 8, 12, or 16 I/O modules. The adapter is the
communication interface between the scanner and the chassis. The scanner
communicates with the adapter through shielded two–conductor
twisted–pair cable (the “blue hose”). In turn, the adapter monitors and
controls the I/O modules through the backplane of the chassis. You can
connect up to 16 chassis to the scanner on the blue hose. You can combine
chassis in any way that results in 8 or less rack addresses.

Industry

Host

SI Scanner

I/O Chassies can contain 8 bit,

Remote I/O Cable

Adapter

I/O Chassis

14652

Bus

Processor

Adapter

I/O Chassis

16-bit, or 32-bit discrete I/O

modules. Analog, and/or

intelligent I/O modules.

You address them using 1/2 slot,

1-slot or 2-slot addressing