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Product Data Document
420DS-1k
July 16, 2007 - Page 8
Bristol
®
ControlWave
®
PAC
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
ControlWave I/O Expansion Rack
ControlWave I/O Expansion Racks allow for ex-
pansion of I/O up to and including total plant wide
control consisting of hundreds of I/O points. The
process control application program resides in the
main ControlWave process controller. It controls
both local I/O as well as the I/O in the Expansion
Racks. No control functionality is required in the I/O
Expansion Rack.
The ControlWave I/O Expansion Rack consists of
a 2, 4, or 8 slot ControlWave Chassis. The chassis
contains an Ethernet communication engine dedi-
cated to communications between the main proces-
sor and the expansion I/O. The communication
engine also supports timing functionality and battery
backed RAM to retain outputs during short power
outages. The ControlWave I/O Expansion Rack is
connected to the main or host ControlWave control-
ler rack via an Ethernet physical link using TCP/IP.
Ethernet is widely accepted as a networking stan-
dard physical data link that allows the ControlWave
I/O Expansion Rack to t into any local or wide
area Ethernet based network, thereby increasing
exibility and providing an economical, reliable, I/O
system.
Hardware Features
10/100 Base T Ethernet Interface
Serial communications ports for Ethernet port
setup
2,4, or 8 I/O slot panel mounted stainless steel
chassis, panel or 19’ rack mount
Supports all ControlWave I/O modules
Hot swap I/O replacement
Internal loop power for I/O simplies installation
AO’s maintain last/preset value on CPU watch
dog
DO’s maintain last or zero value on CPU watch
dog
Wide temperature range (-40 to +70 deg. C)
Class 1, Div. 2 hazardous location and CE
approval
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Scalability
ControlWave I/O Expansion Racks allow for in-
creased system exibility depending on the process
I/O count. The expansion racks provide a cost
effective solution to large I/O count projects, and an
economical approach to low or medium I/O count
applications. ControlWave meets the needs of a
wide range of applications.
Specications
Communication Processor
Data Memory: 2 MB SRAM battery backed
memory
2-digit “Port 80” display for booting and run-time
diagnostics
Communication
Serial communication port with standard PC/AT
9-pin male D-sub connector, supporting baud
rates up to 115.2 KB
Isolation: RS-485 communication port isolated
to 500 VDC
One 10/100 Base T Ethernet port with RJ-
45 connector. (This port is used as the main
communication link to the Host controller.)
Isolation: Ethernet port isolated to 500 VDC
Power Supply and Chassis
12 or 24 VDC power.
Power-fail detection and recovery sequencer.
System LED’s for: Active, Fail, and Power OK.
Power supply isolation: 500 VDC.
ISA bus for I/O system (supports Hot Swap I/O)
able to drive 8 chassis I/O modules
Chassis dimensions are the same as for the
ControlWave PAC
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