Rockwell-automation Ethernet Design Considerations Reference Manual Instrukcja Użytkownika Strona 32

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32 Rockwell Automation Publication ENET-RM002C-EN-P - May 2013
Chapter 3 Ethernet Infrastructure Features
Transmission Packets
Data is transmitted over the EtherNet/IP network in packets. There are
transmission methods for transporting data on the network.
Packet Type Destination Description
Unicast A single node Unicast connections are point-to-point transmissions between a source node and destination node on the network.
A frame is sent to a single destination.
Multicast Multiple nodes
simultaneously
Multicast connections deliver information from one sender to multiple receivers simultaneously.
Copies of a single frame are passed to a selected subset of possible destinations.
Broadcast All nodes Broadcast connections transmit information to every device on the network.
A frame is delivered to all hosts on the network.
1756 Controller
Stratix Switch
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