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

Publication DNET-UM004A-EN-P - March 2004

Before You Begin        1-13

To communicate on the DeviceNet network, each device requires its 
own address. In general, a device can use any address between 0 to 
63. However, we recommend that you follow these guidelines:

scanner

0

If you have multiple scanners, give them the lowest addresses is sequence (0, 1…).

any device on your network 
except the scanner

1 to 61

• Give the lower addresses to devices with 15 bytes or more of input or output 

data.

• Gaps between addresses are OK and have no effect on system performance. If 

you are uncertain of the final lay-out of your system, leave gaps between 
addresses. This gives you some flexibility as you develop your system.

computer interface to the 
network

62

If you connect a computer directly to the DeviceNet network, use address 62 for the 
computer.

• Many computer interface devices use this address as their default.
• Devices such as a 1770-KFD or 1784-PCD connect a computer directly to a 

DeviceNet network.

no device

63

Always leave address 63 open. Out of the box, most DeviceNet devices are preset for 
address 63.

• Some devices have no switches or pushbutton to set the address. They require 

software such as RSNetWorx for DeviceNet software to change the address. This 
means that you must first place it on the network at its preset address of 63 
before you can change the address.

• If another device is already using address 63, there will be an address conflict 

and you won’t be able to communicate with the newly connected device.

• Leaving address 63 open makes it possible to configure a new device.
• The auto-address recovery feature also requires address 63 to be open.