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Data Highway Plus is a local area network (LAN) that allows peer-to-peer
communication among up to 64 nodes. You use Data Highway Plus when
you want to connect a small number of nodes on a common link.
Data Highway Plus provides easy re-configuration and expansion if you
want to add more nodes later.
Typically, you would use Data Highway Plus to connect PLC-5s that need
to communicate with each other frequently. For example, you would use
Data Highway Plus to connect a small group of PLC-5s (approximately 10
nodes or less) involved in a single integrated process. Larger links, or those
in looser configurations, could use a Data Highway as a common backbone
network.
Communication on a Data Highway Plus involves:
a physical link layer
software layers
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