Allen-Bradley devicenet modules in logix5000 control systems Manual Do Utilizador

Publication DNET-UM004A-EN-P - March 2004

Control a Device        7-3

To access the data of your network, add the scanner to the I/O 
configuration of the controller.

To add a scanner:

The default configuration of the scanner gives you the maximum 
amount of input, output, and status data.

If the scanner communicates with the controller via an EtherNet/IP or 
ControlNet network and you need to conserve bandwidth over that 
network, consider reducing the input, output, or status sizes.

• Set the input and output sizes = the number of input and output 

DINTs in the scanner that actually store device data. 

• If you are not going to use all the status information, set the 

status size to the minimum required. See Table 7.1 on page 7-4.

❑ If You Need to Conserve EtherNet/IP or ControlNet Network 

❑ Add the Scanner to the I/O Configuration Folder

❑ Define the Properties of the Scanner

• If you want to only use the ASCII representation 

of scanner status/display, then set the 
Status Size = 10.

• If you also want to read the status code of the 

scanner, set the Status Size = 11.