Installation manual

Publication 1747-RM001G-EN-P - November 2008
13-22 SLC Communication Channels
Ethernet Communications
This section:
• describes SLC 5/05 performance considerations.
• describes Ethernet network connections and media.
• explains how the SLC 5/05 establishes node connections.
• lists Ethernet configuration parameters and procedures.
• describes configuration for subnet masks and gateways.
The SLC 5/05 supports Ethernet communication via the Ethernet
communication channel 1. Ethernet is a local area network that provides
communication between various devices at 10 Mbps or higher. The physical
communication media options for the SLC 5/05 are:
• built-in.
10/100 Mbps twisted pair (10Base-T/100Base-Tx)
• with media converters, hubs, or switches.
– fiber optic
– broadband
– thick-wire coaxial cable (10Base-5)
– thin-wire coaxial cable (10Base-2)
– 1,000 Mbps twisted pair (1000Base-T)
SLC 5/05 Performance Considerations
Actual performance of an SLC 5/05 processor varies according to:
• size of Ethernet messages.
• frequency of Ethernet messages.
• network loading.
• the implementation and performance of your processor application
program, including status file bit settings.
For the best channel 1 Ethernet performance, clear both the channel 1
Communications Servicing Selection bit S:2/15, and the channel 1 Message
Servicing Selection bit, S:33/7. Refer to Appendix A for additional
information regarding these status file bits.