Installation Instructions

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)