Rockwell-automation Ethernet Design Considerations Reference Manual Manual do Utilizador descarregar pdf (Página 53)

Rockwell Automation Publication ENET-RM002C-EN-P - May 2013 53

Ethernet Infrastructure Features Chapter 3

A DLR network is a single-fault tolerant network. Network traffic is managed to

make sure critical data is delivered in a timely manner.

Physical layer failure includes the following:

• All faults that are detectable at physical layer

• Physical layer failure detected by protocol-aware node

• Status message sent by ring node and received by ring supervisor

Stratix 8000

IE Switch

Beacon

Forwarding

ControlLogix Controller

Active Ring

Supervisor

Announce AnnounceBlocking

ETAP

POINT I/O

Distributed I/O

ArmorPOINT I/O

Distributed I/O

POINT I/O

Distributed I/O

ArmorPOINT I/O

Distributed I/O

Stratix 8000

IE Switch

ETAP

ControlLogix Controller

Active Ring

Supervisor

Link Failure

Link StatusLink Status

POINT I/O

Disrtributed I/O

ArmorPOINT I/O

Distributed I/O

POINT I/O

Disrtributed I/O

ArmorPOINT I/O

Distributed I/O

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Rockwell-automation Ethernet Design Considerations Reference Manual Manual do Utilizador Página 53