About RSTP
The RSTP service supports the inherent network communications redundancy provided by a daisy chain loop. The RIO communications automatically find an alternate path if a communication disruption occurs (for example, a cable breaks or a device becomes inoperable). This service does not require you to manually enable or disable the communication paths.
Changing RSTP parameters can affect subring diagnostics, I/O determinism, and network recovery times.
Access the RSTP Tab
Double-click the adapter module in the Control Expert configuration to access the RSTP tab.
Parameters
This table shows the Bridge priority parameters for the RSTP Operational State on the Control Expert RSTP tab:
Bridge Priority |
Value |
BME•58••40 CPU |
Adapter Module |
|---|---|---|---|
Root |
0 |
default |
— |
Backup root |
4096 |
Reserved |
— |
Participant |
32768 |
— |
default |