Allen-Bradley POINT I/O PROFIBUS 1734-APB, User Manual, Page: 11 / 88

1 Publication 1734-UM005B-EN-P - June 2001
Chapter
1
What is the PROFIBUS Adapter
General
This chapter describes the purpose of the POINT I/O PROFIBUS
adapter, and what tasks have to be performed after installing the
adapter.
PROFIBUS Adapter
Overview
The POINT I/O 1734-APB adapter resides on the PROFIBUS network
and the POINT I/O backplane (PointBus) simultaneously. From this
position, the adapter interfaces between the PROFIBUS network and
the POINT I/O modules. The illustration below shows the adapter on
the PROFIBUS network and the PointBus.
The adapter functions are:
•
PROFIBUS - adapter serves as a slave that exchanges I/O data
with a PROFIBUS master.
•
PointBus - the adapter serves as a master that communicates
with up to 63 POINT I/O modules
For more information about: See page:
PROFIBUS Adapter Overview 1-1
Startup Procedure 1-2
Chapter Summary and What’s Next 1-4
Allen-Bradley HMIs