DANGER. Disabling Supervisor Mode may disrupt online communications

Before you disable the Supervisor Mode on a controller verify that a backup ring supervisor is configured for the device-linked ring (DLR) network.

A DLR network without a supervisor node may result in a network storm, rendering the network unusable until one link is disconnected and at least one supervisor is enabled.

For more information on DSR networks, refer to the

EtherNet/IP Embedded Switch Technology Application Guide

(pub. no. ENET-AP005).