Rockwell Automation 1786-RPFRXL ControlNet Fiber Ring Modules Installation Instructions - Manual (Page 24)

24 ControlNet Fiber-optic Ring Repeater Modules
Rockwell Automation Publication 1786-IN003D-EN-P - April 2011
Set up the Network SMAX Parameter in RSNetWorx Software
You must set up the SMAX parameter in RSNetWorx for ControlNet software
to use with the 1786-RPFRL/B or 1786-RPFRXL/B module. The SMAX
parameter sets the maximum scheduled node address on a ControlNet network.
Refer to the documentation supplied with the RSNetWorx for ControlNet
software.
You must set the SMAX parameter at least one node number higher than the
highest used scheduled node number. For example, on a network with 49
scheduled nodes (with 49 being the highest used scheduled node number), you
must set SMAX to at least 50. In this example, node number 50 is an unused
scheduled node number.
Connect the Cable Between the Repeater Modules
The following pages explain instructions for properly and safely connecting
fiber cable.
IMPORTANT When setting the SMAX parameter, you must allow one unused
scheduled node address. This unused node address must be the
highest available scheduled node number. Therefore, the
maximum usable node address when using the 1786-RPFRL/B or
1786-RPFRXL/B module is 98.