User Guide

Publication DNET-UM004A-EN-P - March 2004
4-12 Automatically Configure a DeviceNet Network
Additional Information
About AutoScan
Type of Connection that the Scanner Sets Up
The type of update (connection) that the scanner sets up with each
device depends on the device. The scanner chooses the first
connection type that the device supports in this order:
1. change-of-state (COS)
2. polled
3. strobed
4. cyclic at 1000 ms
The scanner tries to set up a change-of-state connection. If the device
doesn’t support change-of-state, then the scanner tries to set up a
polled connection, etc. The type of connection that the scanner sets
up may not be the default for the device.
Allocating More Memory for Each Device
The AutoScan feature is easiest to use if you leave it set to 1 DINT
(4 bytes) of input memory and output memory for each address.
As an option, you can allocate more memory for each device.
number of bytes of input memory and output
memory to allocate in for each address