G–2 Communicating with Devices on an Ethernet Network
Publication
1747-6.2
Actual performance of an SLC 5/05 processor varies according to:
• size of Ethernet messages
• frequency of Ethernet messages
• network loading
• the implementation of and performance of your processor
application program
Optimal Performance: PC to SLC 5/05 Processor (2-node Ethernet network)
Operation Words
MSG per
second ms per MSG
Words per
second
Single Typed Read 1 140 281 140
Single Typed Reads 20 138 287 2760
Single Typed Reads 100 129 312 12,900
The SLC 5/05 Ethernet connector conforms to ISO/IEC 8802–3 STD
802.3 and utilizes 10Base-T media. Connections are made directly
from the SLC 5/05 to an Ethernet hub. The network setup is simple
and cost effective. Typical network topology is pictured below.
Ethernet Network Topology
to SLC 5/05
Channel 1
to PC Ethernet Card
RJ45
connectors
on both ends of cable
(10Base-T)
Ethernet
Hub
Important: The SLC 5/05 processor contains a 10Base-T, RJ45
Ethernet connector which connects to standard Ethernet
hubs via 8-wire twisted pair straight-through cable. To
access other Ethernet mediums, use 10Base-T media
converters or Ethernet hubs that can be connected
together via fiber, thin-wire, or thick-wire coaxial
cables, or any other physical media commercially
available with Ethernet hubs.
SLC 5/05 Performance
Considerations
SLC 5/05 and PC
Connections to the
Ethernet Network
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