Rockwell Automation 1784-KTXD User Manual Page 240

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Publication 1747-IN011F-EN-P - May 2007
240 Control Networks
ControlNet Network
ControlNet systems are designed to:
provide high-speed, repeatable, deterministic I/O transmission.
let control and message information co-exist on the same
physical media.
make sure that I/O data transfers are not affected by
programming terminal activity or interscanner message activity
on the network.
The 1747-SCNR ControlNet Scanner Module
The 1747-SCNR scanner provides the capability for SLC processors to
produce or consume scheduled I/O to and from a ControlNet
network. Scheduled messaging lets the SLC processor program control
I/O events in real time over the ControlNet network. The module
connects to a ControlNet network via the standard BNC connectors.
The 1747-KFC15 ControlNet Messaging Module
The 1747-KFC15 module provides the capability for SLC 5/03 and later
processors to send or receive unscheduled ControlNet messages. With
unscheduled messages, the SLC processor program can send
peer-to-peer messages or be accessed and edited over the ControlNet
network using RSLogix 500 software.
The 1747-KFC15 module connects to the ControlNet network via the
standard BNC connectors and links to the SLC processor via a
standard RS-232 cable. Other programming interfaces can connect to
the ControlNet network through the 1747-KFC15 module’s network
access port.
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