Installation Guide Manual

Rockwell Automation Publication CNET-IN001C-EN-P - October 2011 55
Chapter 5
Verify Your Network
Set Network Parameters
You can use RSNetWorx for ControlNet software to determine if network
parameters are set up correctly. Based on the system parameters you entered, such
as, NUT, SMAX, UMAX, and worst-case network delay, RSNetWorx software
calculates scheduled messaging for your network.
If your network is not valid, you must adjust your parameters.
For more information, see Getting Results with RSNetWorx for ControlNet,
publication CNET-GR001
.
Measure Power Loss After you install short-, medium- or long-distance fiber cable, check your sections
by using an optical power meter to verify that your attenuation is less than or
equal to the maximum allowed by the fiber type. The light source you are using
must match the wavelength of the fiber module in use.
See Tab le 9 on pa g e 56
for the wavelengths of each module.
The power loss measurement should match the tables in Chapter 2. If you do not
follow the cable insertion loss recommendations in Table 5 on page 33
, you can
assume that you will have high-loss cable and high-loss connections.
Topic Page
Set Network Parameters 55
Measure Power Loss 55
OTDR Measurement 57