Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual - Manual (Page 147)

147 Publication 1769-UM009E-EN-P - August 2009
Glossary
Auto-Address Recovery (AAR)
Auto-Address Recovery (AAR) allows a slave device to be removed from the
network and replaced with another identical slave device that is residing on the
network at node address 63 and not in the scan list. The replacement device
will have its node address automatically changed to that of the device being
replaced. Depending on the level of revision keying, it may be possible for the
node address of the replacement device to be changed but not brought online
due to a revision-keying mismatch.
Auto Device Replacement (ADR)
The Auto Device Replacement feature automates the replacement of a failed
slave device on a DeviceNet network by configuring the new device to the
prior level of operation. This includes Configuration Recovery (CR) and
Auto-Address Recovery (AAR).
Bridge
The scanner module’s support of explicit message transfer.
Change of State (COS)
A type of I/O data communication. The scanner module can send and receive
data with slave devices that have the change of state feature. Data is sent
whenever a data change occurs, or at the predefined heartbeat interval.
Configuration Recovery (CR)
Configuration Recovery (CR) allows a slave device to be removed from the
network and replaced with an identical slave device configured at the same
communication rate and Node Address as the device being replaced.
Controller
The programmable controller, for example CompactLogix or
MicroLogix 1500.
Cyclic
A type of I/O data communication. The scanner module can send and receive
data with slave devices that have the cyclic feature. Data is sent at a
user-configurable rate.