Setup guide

Introduction
6
Introduction
The I/O capacity of the ControlWave Process Automation Controller can be increased by the
addition of one or more ControlWave I/O Expansion Racks.
The ControlWave Controller is referred to as the host of the I/O Expansion Racks.
Communication between the I/O Expansion Rack and its host ControlWave is via Ethernet. The
I/O Racks can be part of their own IP sub-net, or they can sit on the wider Ethernet network,
depending upon the requirements of your particular application.
More than one ControlWave can reference a single I/O Rack (necessary for redundant
configurations) however, only one ControlWave can use an I/O Rack at any one time.
NOTE: The I/O Expansion Rack can be distinguished from the Process Automation Controller
by looking for the Run/Remote/Local key switch. On the I/O Rack, there is no key switch, simply
a plug where the keyhole would appear.
ControlWave Process
Automation Controller
Ethernet cabling
Expansion I/O Rack
Expansion I/O Rack
ControlWave
ControlWave
(HOST)