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

Publication DNET-UM004A-EN-P - March 2004

1-10        Before You Begin

The length of the trunkline and type of cable determines which baud 
rates you can use:

If you change the baud rate of your network, make sure that all 
devices change to the new baud rate. Mixed baud rates produce 
communication errors.

To set the baud rate for the network:

1. Connect the network interface to the network and set its baud 

rate.

2. Connect the scanner to the network and set its baud rate.

3. For each device that has only fixed baud rates (no autobaud), 

set the baud rate and connect it to the network.

4. Connect the remaining devices to the network and enable 

autobaud for each of them.

125K bit/s

420m (1378 ft)

500m (1640 ft)

100m (328 ft)

156 m (512 ft)

250K bit/s

200m (656 ft)

250m (820 ft)

100m (328 ft)

78m (256 ft)

500K bit/s

75m (246 ft)

100m (328 ft)

100m (328 ft)

39m (128 ft)

has a switch to enable 
autobaud

A. Set the switch to autobaud.

B. Connect the device to the network.

does not have a switch to 
enable autobaud

A. Connect the device to the network.

B. Use RSNetWorx software to enable 

autobaud.