Allen-Bradley 1784-KTX Reference Manual page 9

Table of Contents

Chapter 1

Understanding I/O Scanner Concepts

I/O chassis can contain 8 bit, 16 bit, or 32 bit

discrete I/O modules, analog, and/or intelligent

I/O modules.

Allen-Bradley Parts

1-2

I/O modules sit in one or more chassis. An I/O chassis is a housing that

holds one adapter and as many as 16 I/O modules. The adapter is the

communication interface between the scanner and the chassis. The scanner

communicates with the adapter through Allen-Bradley-approved cable.

In turn, the adapter monitors and controls the I/O modules through the

backplane of the chassis. You can combine chassis in any way that results

in as many as 32 adapter addresses.

EISA/ISA Bus

Remote I/O Cable

We can divide I/O, and therefore I/O modules, into discrete and

intelligent modules.

Adapter

I/O Chassis

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Table of Contents

1784-ktxd 1784-kts