Rockwell Automation 1747-ACNR15 ControlNet Adapter Module Installation Instructions - Manual (Page 4)

4 ControlNet Adapter Module
Publication 1747-IN017C-EN-P - May 2001
Module Description and Features
The 1747-ACN15 and -ACNR15 adapters control 1746 remote I/O on the ControlNet
network. The ControlNet network is a communication architecture that allows the
exchange of messages between ControlNet products compliant with the CI
specification.
The adapters support multiple scheduled connections to individual modules or rack
scheduled connections to a group of modules. Up to 64 scheduled connections per
adapter are possible with a maximum of 251 input words and/or 249 output words
supported per scheduled connection. An adapter can control up to 30 slots of 1746
I/O (3 chassis max.).
The 1747-ACN15 and -ACNR15 adapters features include:
•
high-speed data transfer
•
diagnostic messages
•
local communication network access through the network access port (NAP)
•
redundant media (1747-ACNR15 only)
•
unscheduled messaging
•
multicast outputs
•
PLC-5 ControlNet hot backup
Hardware Components
The adapter module consists of the following major components, as shown in the
following figure:
•
ControlNet status and health indicators
•
status display and network address
•
network access port (NAP)
•
ControlNet connectors (one on 1747-ACN15; two on 1747-ACNR15)
•
module net address switch assemblies (on top of module)