Delta CMM-EIP02 User Manual

VFD EtherNet/IP Option Card
Option Card Application Manual
61
5.3 Ring-based Network Functions
DLR (Device Level Ring) is an EtherNet/IP protocol in a ring-based network. It provides single
network backup in a ring-bas network (only one physical layer network failure at a maximum is
allowed), and a means to detect, manage, and recover in a ring-based network.
A DLR network includes three types of ring nodes: Ring Supervisor, Ring Participants / Ring
Node, and DLR Switch. Dual-port option card only supports Ring Participants. You must enable
the Ring Supervisor function in a network before connecting a ring-based network, or network
failure may occur. See the table below for descriptions of each node.
Node Description Delta’s Models
Ring
Supervisor
1. Manages a ring-based network and collects data, including
status and error information. Every DLR must have at least
one ring supervisor.
2. This function is normally disabled. You must enable this
function before connecting a ring-based network, or
network failure may occur.
3. Set priorities if there are multiple ring supervisors.
AHCPU560-EN2
AHRTU-ETHN-5A
DVS-103I02C-DLR
Ring
Participants /
Ring Node
1. A basic function of DLR. In a DLR network, if you install a
device that does not support Ring Participant, it may cause the
device malfunctioned.
2. Reports fault network information to Ring Supervisor,
automatically adjusts communication methods when fault
occurs, and continues communicating on typology (linear bus)
after fault occurs.
AHCPU560-EN2
AHRTU-ETHN-5A
AH10EN-5A
DVS-103I02C-DLR
CMC-EIP02
CMM-EIP03
DLR Switch
1. Via network socket, you can add ring-based network to non-
ring based network, or add devices that do not support ring-
based network (including computer, SCADA) to ring-based
network.
2. DLR Switch is enabled with Ring Supervisor function.
DVS-103I02C-DLR

Delta CMM-EIP02 Specifications

General

Brand	Delta
Model	CMM-EIP02
Category	Control Unit
Language	English