Rockwell Automation 57C329 Remote I/O Communications, AutoMax - Manual (Page 9)

1Ć1
1.0 INTRODUCTION
The products described in this manual are manufactured or
distributed by Reliance Electric Industrial Company.
The AutoMaxr Remote I/O network interconnects an AutoMax or
DCS 5000 Processor with remote AutoMax racks, Remote I/O Heads,
or remote Sharkt racks. The AutoMax Remote I/O Communications
module (M/N 57C416) is the interface between the AutoMax or DCS
5000 Processor and the remote I/O on the network.
The AutoMax Remote I/O network is designed for master/slave
operation. The network is composed of two main parts: a number of
nodes (drops) and a transmission medium (coaxial or fiberĆoptic
cable).
There are two types of drops: master and slave. The master drop is a
Multibust rack that contains at least one AutoMax or DCS 5000
Processor module and a Remote I/O Communications module.
Slave drops can be:
D Remote I/O Heads (M/N 57C328 and M/N 57C330)
D Remote Drive Interface Heads (M/N 57C329)
D Shark racks containing I/O modules and an AutoMax Remote I/O
Shark Interface module (M/N 57C554)
D AutoMax racks containing AutoMax I/O modules and a Remote
I/O Communications module
D IBMĆcompatible personal computers containing the AutoMax PC
Link Interface module (M/N 57C445). Refer to the AutoMax PC
Link instruction manual (J2Ć3011) for more information.
An AutoMax Remote I/O network can have a maximum of seven slave
drops. All five types can be mixed on the same network.
The drops are connected using coaxial cable or, when noise
immunity and total electrical isolation is required, fiberĆoptic cable.
The coaxial cable network is structured in a bus configuration. This
type of topology is characterized by a main trunkline in which
individual nodes are connected in a multidrop fashion as shown in
figure 1.1.
Master
Drop
Coaxial Cable
Slave Drop Slave Drop Slave Drop
Figure 1.1 Ć A Typical Coaxial Cable Remote I/O Network
The black bar shown on the rightĆhand margin of this page will be
used throughout this instruction manual to signify new or revised
text or figures.