Rockwell Automation 1336-GM6 Enhanced DeviceNet Communications Module - Manual (Page 90)

B-2 Enhanced DeviceNet Adapter’s Parameters
2. Set the DN Node Address (2) parameter to the desired address.
3. Reset the adapter by setting the Reset Adapter (22) parameter to
Enable.
Setting the Data Rate The Enhanced DeviceNet adapter supports the following data rates:
• 125 Kbps
• 250 Kbps
• 500 Kbps
• Autobaud
The adapter defaults to using autobaud data rate detection.
Important: At least one continually transmitting device on the
network (usually the scanner) must be set to a fixed data rate (not
autobaud). This device sets the data rate for the network that the other
nodes using autobaud detect.
If you want to change your adapter’s data rate, you need to:
1. Access the adapter’s parameters using either a serial connection
(refer to Chapter 3, Configuring the 1203-GU6 Enhanced
DeviceNet Module Using a Serial Connection) or the DeviceNet
network (refer to Chapter 4, Configuring the Enhanced
DeviceNet Adapter Using RSNetWorx for DeviceNet).
2. Set the DN Data Rate (3) parameter to the desired value. Refer to
the following table for information on acceptable values.
3. Reset the adapter by setting the Reset Adapter (22) parameter to
Enable.
Using Datalinks and Command I/O Command I/O provides two 16-bit words of input and two 16-bit
words of output when enabled. Datalinks let you increase the size of
I/O to and from a SCANport device (provided the SCANport device
supports datalinks). By enabling datalinks, you can continuously
change or monitor the value of a parameter without using the
DeviceNet to SCANport messaging function.
Datalinks consist of two 16-bit words of input and two 16-bit words
of output when enabled. They provide up to eight words (in and out)
of data if they are supported in the connected SCANport product.
Data Rates 125 Kbps 250 Kbps 500 Kbps
Thick Trunk Length 500 m (1 640 ft) 250 m (820 ft) 100 m (328 ft)
Thin Trunk Length 100 m (328 ft) 100 m (328 ft) 100 m (328 ft)
Maximum Drop Length 6 m (20 ft) 6 m (20 ft) 6 m (20 ft)
Cumulative Drop Length 156 m (512 ft) 78 m (256 ft) 39 m (128 ft)