19．EtherNet/IP COMMUNICATION
(3) Device Level Ring(DLR) Object (Class ID: 47h)
Active Supervisor Address
82h
(Beacon-based
Ring Node,
Flush_Table
frame capable)
This object provides an interface of the DLR protocol setting or status information. The description of
each Attribute is as follows.
Either or both of the IP address (IPv4) or/and MAC address of an active ring supervisor
IP address (IPv4) of an active ring supervisor
MAC address of an active ring supervisor
Description of the DLR function of a device
Refer to the following table for details.
Indicates a normal communication in the Ring or Linear network topology mode.
Ring Fault (only when the Ring network topology mode is used)
Indicates that an unexpected loop has been detected in the network (only when the
Linear network topology mode is used).
Partial Network Fault (only when the Ring network topology mode is used and the
node is a Ring supervisor)
Rapid Fault/Restore Cycle
Set when the ring node of the device is based on the Announce frame.
Set when the ring node of the device is based on the Beacon frame.
Set when the device can provide a supervisor function.
Redundant Gateway Capable
Set when the device can provide a redundant gateway function.
Flush_Table frame Capable
Set when Flush Tables flames can be supported.
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